CT scan is considered the most reliable imaging technique for diagnosing intra-abdominal conditions. It is also considered the gold standard for evaluating organ damage. However, it is crucial to carefully consider the specific circumstances before using CT scan, as it may not be suitable for unstable patients or those who clearly require immediate surgical intervention. In such cases, other methods like FAST can be used to detect fluid in the abdominal cavity, although it is not as accurate in assessing injuries to solid organs or hollow structures within the abdomen.

Further Reading:

Abdominal trauma can be classified into two categories: blunt trauma and penetrating trauma. Blunt trauma occurs when compressive or deceleration forces are applied to the abdomen, often resulting from road traffic accidents or direct blows during sports. The spleen and liver are the organs most commonly injured in blunt abdominal trauma. On the other hand, penetrating trauma involves injuries that pierce the skin and enter the abdominal cavity, such as stabbings, gunshot wounds, or industrial accidents. The bowel and liver are the organs most commonly affected in penetrating injuries.

When it comes to imaging in blunt abdominal trauma, there are three main modalities that are commonly used: focused assessment with sonography in trauma (FAST), diagnostic peritoneal lavage (DPL), and computed tomography (CT). FAST is a non-invasive and quick method used to detect free intraperitoneal fluid, aiding in the decision on whether a laparotomy is needed. DPL is also used to detect intraperitoneal blood and can be used in both unstable blunt abdominal trauma and penetrating abdominal trauma. However, it is more invasive and time-consuming compared to FAST and has largely been replaced by it. CT, on the other hand, is the gold standard for diagnosing intra-abdominal pathology and is used in stable abdominal trauma patients. It offers high sensitivity and specificity but requires a stable and cooperative patient. It also involves radiation and may have delays in availability.

In the case of penetrating trauma, it is important to assess these injuries with the help of a surgical team. Penetrating objects should not be removed in the emergency department as they may be tamponading underlying vessels. Ideally, these injuries should be explored in the operating theater.

In summary, abdominal trauma can be classified into blunt trauma and penetrating trauma. Blunt trauma is caused by compressive or deceleration forces and commonly affects the spleen and liver. Penetrating trauma involves injuries that pierce the skin and commonly affect the bowel and liver. Imaging modalities such as FAST, DPL, and CT are used to assess and diagnose abdominal trauma, with CT being the gold standard. Penetrating injuries should be assessed by a surgical team and should ideally be explored in the operating theater.

Full thickness burns are devoid of pain as they result in the complete destruction of the superficial nerve endings. These burns usually display characteristics such as a lack of sensation, a coloration of the burnt skin in shades of white, brown, or black, a texture that is waxy or leathery, and a dry appearance without any blistering.

Further Reading:

Burn injuries can be classified based on their type (degree, partial thickness or full thickness), extent as a percentage of total body surface area (TBSA), and severity (minor, moderate, major/severe). Severe burns are defined as a >10% TBSA in a child and >15% TBSA in an adult.

When assessing a burn, it is important to consider airway injury, carbon monoxide poisoning, type of burn, extent of burn, special considerations, and fluid status. Special considerations may include head and neck burns, circumferential burns, thorax burns, electrical burns, hand burns, and burns to the genitalia.

Airway management is a priority in burn injuries. Inhalation of hot particles can cause damage to the respiratory epithelium and lead to airway compromise. Signs of inhalation injury include visible burns or erythema to the face, soot around the nostrils and mouth, burnt/singed nasal hairs, hoarse voice, wheeze or stridor, swollen tissues in the mouth or nostrils, and tachypnea and tachycardia. Supplemental oxygen should be provided, and endotracheal intubation may be necessary if there is airway obstruction or impending obstruction.

The initial management of a patient with burn injuries involves conserving body heat, covering burns with clean or sterile coverings, establishing IV access, providing pain relief, initiating fluid resuscitation, measuring urinary output with a catheter, maintaining nil by mouth status, closely monitoring vital signs and urine output, monitoring the airway, preparing for surgery if necessary, and administering medications.

Burns can be classified based on the depth of injury, ranging from simple erythema to full thickness burns that penetrate into subcutaneous tissue. The extent of a burn can be estimated using methods such as the rule of nines or the Lund and Browder chart, which takes into account age-specific body proportions.

Fluid management is crucial in burn injuries due to significant fluid losses. Evaporative fluid loss from burnt skin and increased permeability of blood vessels can lead to reduced intravascular volume and tissue perfusion. Fluid resuscitation should be aggressive in severe burns, while burns <15% in adults and <10% in children may not require immediate fluid resuscitation. The Parkland formula can be used to calculate the intravenous fluid requirements for someone with a significant burn injury.

The most recent ATLS guidelines recommend using either the jaw-thrust or chin-lift techniques as the initial approach to open the airway in trauma patients. It is important to avoid moving the head and neck in patients with suspected cervical spine injuries. However, if the patient is unconscious and does not have a gag reflex, temporarily placing an oropharyngeal airway can be beneficial.

To perform the chin-lift technique, gently place your fingers under the mandible and lift it upwards to bring the chin forward. Use your thumb to slightly depress the lower lip and open the mouth. Alternatively, you can place your thumb behind the lower incisors while gently lifting the chin. It is crucial not to hyperextend the neck during the chin-lift technique.

For the jaw thrust technique, place one hand on each side of the mandible and push it forward. This can be done in conjunction with a bag-mask device to achieve a good seal and provide adequate ventilation. Just like with the chin-lift technique, be cautious not to extend the patient’s neck.

Massive haemothorax is characterized by the presence of more than 1.5 litres of blood in the pleural space. The patient’s history and examination findings are indicative of haemothorax. When blood loss exceeds 1500ml, it is classified as grade 3 hypovolemic shock, which is considered severe. Symptoms such as a pulse rate over 120, respiration rate over 30, and low blood pressure align with grade 3 shock and are consistent with massive haemothorax. In the case of pneumothorax, percussion reveals a resonant or hyper-resonant sound. Chylothorax, on the other hand, is a rare condition that typically occurs due to injury to the thoracic duct.

Further Reading:

Haemothorax is the accumulation of blood in the pleural cavity of the chest, usually resulting from chest trauma. It can be difficult to differentiate from other causes of pleural effusion on a chest X-ray. Massive haemothorax refers to a large volume of blood in the pleural space, which can impair physiological function by causing blood loss, reducing lung volume for gas exchange, and compressing thoracic structures such as the heart and IVC.

The management of haemothorax involves replacing lost blood volume and decompressing the chest. This is done through supplemental oxygen, IV access and cross-matching blood, IV fluid therapy, and the insertion of a chest tube. The chest tube is connected to an underwater seal and helps drain the fluid, pus, air, or blood from the pleural space. In cases where there is prompt drainage of a large amount of blood, ongoing significant blood loss, or the need for blood transfusion, thoracotomy and ligation of bleeding thoracic vessels may be necessary. It is important to have two IV accesses prior to inserting the chest drain to prevent a drop in blood pressure.

In summary, haemothorax is the accumulation of blood in the pleural cavity due to chest trauma. Managing haemothorax involves replacing lost blood volume and decompressing the chest through various interventions, including the insertion of a chest tube. Prompt intervention may be required in cases of significant blood loss or ongoing need for blood transfusion.

Early assessment of the airway is a critical aspect of managing a patient who has suffered burns. Airway blockage can occur rapidly due to direct injury, such as inhalation injury, or as a result of swelling caused by the burn. If there is a history of trauma, the airway should be evaluated and treated while maintaining control of the cervical spine.

Signs of airway obstruction may not be immediately apparent, as swelling typically does not occur right away. Children with thermal burns are at a higher risk of airway obstruction compared to adults due to their smaller airway size, so they require careful observation.

There are several risk factors for airway obstruction in burned patients, including inhalation injury, the presence of soot in the mouth or nostrils, singed nasal hairs, burns to the head, face, or neck, burns inside the mouth, a large burn area with increasing depth, and associated trauma. A carboxyhemoglobin level above 10% is also suggestive of an inhalation injury.

Traumatic aortic rupture, also known as traumatic aortic disruption or transection, occurs when the aorta is torn or ruptured due to physical trauma. This condition often leads to sudden death because of severe bleeding. Motor vehicle accidents and falls from great heights are the most common causes of this injury.

The patients with the highest chances of survival are those who have an incomplete tear near the ligamentum arteriosum of the proximal descending aorta, close to where the left subclavian artery branches off. The presence of an intact adventitial layer or contained mediastinal hematoma helps maintain continuity and prevents immediate bleeding and death. If promptly identified and treated, survivors of these injuries can recover. In cases where traumatic aortic rupture leads to sudden death, approximately 50% of patients have damage at the aortic isthmus, while around 15% have damage in either the ascending aorta or the aortic arch.

Initial chest X-rays may show signs consistent with a traumatic aortic injury. However, false-positive and false-negative results can occur, and sometimes there may be no abnormalities visible on the X-ray. Some of the possible X-ray findings include a widened mediastinum, hazy left lung field, obliteration of the aortic knob, fractures of the 1st and 2nd ribs, deviation of the trachea to the right, presence of a pleural cap, elevation and rightward shift of the right mainstem bronchus, depression of the left mainstem bronchus, obliteration of the space between the pulmonary artery and aorta, and deviation of the esophagus or NG tube to the right.

A helical contrast-enhanced CT scan of the chest is the preferred initial investigation for suspected blunt aortic injury. It has proven to be highly accurate, with close to 100% sensitivity and specificity. CT scanning should be performed liberally, as chest X-ray findings can be unreliable. However, hemodynamically unstable patients should not be placed in a CT scanner. If the CT results are inconclusive, aortography or trans-oesophageal echo can be performed for further evaluation.

Immediate surgical intervention is necessary for these injuries. Endovascular repair is the most common method used and has excellent short-term outcomes. Open repair may also be performed depending on the circumstances. It is important to control heart rate and blood pressure during stabilization to reduce the risk of rupture. Pain should be managed with appropriate analgesic

TBSA, or Total Body Surface Area, is a method commonly used to estimate the size of small burns and very large burns by including the area of unburnt skin. However, it is not considered a reliable method for medium-sized burns.

Further Reading:

Burn injuries can be classified based on their type (degree, partial thickness or full thickness), extent as a percentage of total body surface area (TBSA), and severity (minor, moderate, major/severe). Severe burns are defined as a >10% TBSA in a child and >15% TBSA in an adult.

When assessing a burn, it is important to consider airway injury, carbon monoxide poisoning, type of burn, extent of burn, special considerations, and fluid status. Special considerations may include head and neck burns, circumferential burns, thorax burns, electrical burns, hand burns, and burns to the genitalia.

Airway management is a priority in burn injuries. Inhalation of hot particles can cause damage to the respiratory epithelium and lead to airway compromise. Signs of inhalation injury include visible burns or erythema to the face, soot around the nostrils and mouth, burnt/singed nasal hairs, hoarse voice, wheeze or stridor, swollen tissues in the mouth or nostrils, and tachypnea and tachycardia. Supplemental oxygen should be provided, and endotracheal intubation may be necessary if there is airway obstruction or impending obstruction.

The initial management of a patient with burn injuries involves conserving body heat, covering burns with clean or sterile coverings, establishing IV access, providing pain relief, initiating fluid resuscitation, measuring urinary output with a catheter, maintaining nil by mouth status, closely monitoring vital signs and urine output, monitoring the airway, preparing for surgery if necessary, and administering medications.

Burns can be classified based on the depth of injury, ranging from simple erythema to full thickness burns that penetrate into subcutaneous tissue. The extent of a burn can be estimated using methods such as the rule of nines or the Lund and Browder chart, which takes into account age-specific body proportions.

Fluid management is crucial in burn injuries due to significant fluid losses. Evaporative fluid loss from burnt skin and increased permeability of blood vessels can lead to reduced intravascular volume and tissue perfusion. Fluid resuscitation should be aggressive in severe burns, while burns <15% in adults and <10% in children may not require immediate fluid resuscitation. The Parkland formula can be used to calculate the intravenous fluid requirements for someone with a significant burn injury.

Based on the Lund and Browder chart, the total percentage of burns is calculated as 3 since it affects one side of both hands.

Further Reading:

Burn injuries can be classified based on their type (degree, partial thickness or full thickness), extent as a percentage of total body surface area (TBSA), and severity (minor, moderate, major/severe). Severe burns are defined as a >10% TBSA in a child and >15% TBSA in an adult.

When assessing a burn, it is important to consider airway injury, carbon monoxide poisoning, type of burn, extent of burn, special considerations, and fluid status. Special considerations may include head and neck burns, circumferential burns, thorax burns, electrical burns, hand burns, and burns to the genitalia.

Airway management is a priority in burn injuries. Inhalation of hot particles can cause damage to the respiratory epithelium and lead to airway compromise. Signs of inhalation injury include visible burns or erythema to the face, soot around the nostrils and mouth, burnt/singed nasal hairs, hoarse voice, wheeze or stridor, swollen tissues in the mouth or nostrils, and tachypnea and tachycardia. Supplemental oxygen should be provided, and endotracheal intubation may be necessary if there is airway obstruction or impending obstruction.

The initial management of a patient with burn injuries involves conserving body heat, covering burns with clean or sterile coverings, establishing IV access, providing pain relief, initiating fluid resuscitation, measuring urinary output with a catheter, maintaining nil by mouth status, closely monitoring vital signs and urine output, monitoring the airway, preparing for surgery if necessary, and administering medications.

Burns can be classified based on the depth of injury, ranging from simple erythema to full thickness burns that penetrate into subcutaneous tissue. The extent of a burn can be estimated using methods such as the rule of nines or the Lund and Browder chart, which takes into account age-specific body proportions.

Fluid management is crucial in burn injuries due to significant fluid losses. Evaporative fluid loss from burnt skin and increased permeability of blood vessels can lead to reduced intravascular volume and tissue perfusion. Fluid resuscitation should be aggressive in severe burns, while burns <15% in adults and <10% in children may not require immediate fluid resuscitation. The Parkland formula can be used to calculate the intravenous fluid requirements for someone with a significant burn injury.

Blunt abdominal trauma often leads to injuries in certain organs. According to the latest edition of the ATLS manual, the spleen is the most frequently injured organ, with a prevalence of 40-55%. Following closely behind is the liver, which sustains injuries in about 35-45% of cases. The small bowel, although less commonly affected, still experiences injuries in approximately 5-10% of patients. It is worth noting that patients who undergo laparotomy for blunt trauma have a 15% incidence of retroperitoneal hematoma. These statistics highlight the significant impact of blunt abdominal trauma on organ health.

ATLS guidelines now suggest administering only 1 liter of crystalloid fluid during the initial assessment. If patients do not respond to the crystalloid, it is recommended to quickly transition to blood products. Studies have shown that infusing more than 1.5 liters of crystalloid fluid is associated with higher mortality rates in trauma cases. Therefore, it is advised to prioritize the early use of blood products and avoid large volumes of crystalloid fluid in trauma patients. In cases where it is necessary, massive transfusion should be considered, defined as the transfusion of more than 10 units of blood in 24 hours or more than 4 units of blood in one hour. For patients with evidence of Class III and IV hemorrhage, early resuscitation with blood and blood products in low ratios is recommended.

Based on the findings of significant trials, such as the CRASH-2 study, the use of tranexamic acid is now recommended within 3 hours. This involves administering a loading dose of 1 gram intravenously over 10 minutes, followed by an infusion of 1 gram over eight hours. In some regions, tranexamic acid is also being utilized in the prehospital setting.

When it comes to managing acute burns, Hartmann’s or lactated Ringers are the preferred intravenous fluids. There is no scientific evidence to support the use of colloids in burn management. In the United Kingdom, Hartmann’s solution is the most commonly used fluid for this purpose.

Further Reading:

Burn injuries can be classified based on their type (degree, partial thickness or full thickness), extent as a percentage of total body surface area (TBSA), and severity (minor, moderate, major/severe). Severe burns are defined as a >10% TBSA in a child and >15% TBSA in an adult.

When assessing a burn, it is important to consider airway injury, carbon monoxide poisoning, type of burn, extent of burn, special considerations, and fluid status. Special considerations may include head and neck burns, circumferential burns, thorax burns, electrical burns, hand burns, and burns to the genitalia.

Airway management is a priority in burn injuries. Inhalation of hot particles can cause damage to the respiratory epithelium and lead to airway compromise. Signs of inhalation injury include visible burns or erythema to the face, soot around the nostrils and mouth, burnt/singed nasal hairs, hoarse voice, wheeze or stridor, swollen tissues in the mouth or nostrils, and tachypnea and tachycardia. Supplemental oxygen should be provided, and endotracheal intubation may be necessary if there is airway obstruction or impending obstruction.

The initial management of a patient with burn injuries involves conserving body heat, covering burns with clean or sterile coverings, establishing IV access, providing pain relief, initiating fluid resuscitation, measuring urinary output with a catheter, maintaining nil by mouth status, closely monitoring vital signs and urine output, monitoring the airway, preparing for surgery if necessary, and administering medications.

Burns can be classified based on the depth of injury, ranging from simple erythema to full thickness burns that penetrate into subcutaneous tissue. The extent of a burn can be estimated using methods such as the rule of nines or the Lund and Browder chart, which takes into account age-specific body proportions.

Fluid management is crucial in burn injuries due to significant fluid losses. Evaporative fluid loss from burnt skin and increased permeability of blood vessels can lead to reduced intravascular volume and tissue perfusion. Fluid resuscitation should be aggressive in severe burns, while burns <15% in adults and <10% in children may not require immediate fluid resuscitation. The Parkland formula can be used to calculate the intravenous fluid requirements for someone with a significant burn injury.

Traumatic aortic rupture, also known as traumatic aortic disruption or transection, occurs when the aorta is torn or ruptured due to physical trauma. This condition often leads to sudden death because of severe bleeding. Motor vehicle accidents and falls from great heights are the most common causes of this injury.

The patients with the highest chances of survival are those who have an incomplete tear near the ligamentum arteriosum of the proximal descending aorta, close to where the left subclavian artery branches off. The presence of an intact adventitial layer or contained mediastinal hematoma helps maintain continuity and prevents immediate bleeding and death. If promptly identified and treated, survivors of these injuries can recover. In cases where traumatic aortic rupture leads to sudden death, approximately 50% of patients have damage at the aortic isthmus, while around 15% have damage in either the ascending aorta or the aortic arch.

Initial chest X-rays may show signs consistent with a traumatic aortic injury. However, false-positive and false-negative results can occur, and sometimes there may be no abnormalities visible on the X-ray. Some of the possible X-ray findings include a widened mediastinum, hazy left lung field, obliteration of the aortic knob, fractures of the 1st and 2nd ribs, deviation of the trachea to the right, presence of a pleural cap, elevation and rightward shift of the right mainstem bronchus, depression of the left mainstem bronchus, obliteration of the space between the pulmonary artery and aorta, and deviation of the esophagus or NG tube to the right.

A helical contrast-enhanced CT scan of the chest is the preferred initial investigation for suspected blunt aortic injury. It has proven to be highly accurate, with close to 100% sensitivity and specificity. CT scanning should be performed liberally, as chest X-ray findings can be unreliable. However, hemodynamically unstable patients should not be placed in a CT scanner. If the CT results are inconclusive, aortography or trans-oesophageal echo can be performed for further evaluation.

Immediate surgical intervention is necessary for these injuries. Endovascular repair is the most common method used and has excellent short-term outcomes. Open repair may also be performed depending on the circumstances. It is important to control heart rate and blood pressure during stabilization to reduce the risk of rupture. Pain should be managed with appropriate analgesic

A tension pneumothorax occurs when there is an air leak from the lung or chest wall that acts like a one-way valve. This causes air to build up in the pleural space without any way to escape. As a result, the pressure in the pleural space increases and pushes the mediastinum into the opposite side of the chest. If left untreated, this can lead to cardiovascular instability and even cardiac arrest.

The clinical features that are typically seen in tension pneumothorax include respiratory distress and cardiovascular instability. Tracheal deviation away from the side of injury, unilateral absence of breath sounds on the affected side, and a hyper-resonant percussion note are also characteristic. Other signs may include distended neck veins and cyanosis, although cyanosis is usually a late sign.

Both tension pneumothorax and massive haemothorax can cause decreased breath sounds on auscultation. However, they can be differentiated by percussion. Hyper-resonance suggests tension pneumothorax, while dullness indicates a massive haemothorax.

It is important to note that tension pneumothorax is a clinical diagnosis and treatment should not be delayed for radiological confirmation. Immediate decompression through needle thoracocentesis is the recommended treatment. Traditionally, a large-bore needle or cannula is inserted into the 2nd intercostal space in the midclavicular line of the affected side. However, studies have shown that using the 4th or 5th intercostal space in the midaxillary line has better success in reaching the thoracic cavity in adult patients. ATLS now recommends this location for needle decompression in adults. The location for children remains the same, and the 2nd intercostal space in the midclavicular line should still be used. It is important to remember that needle thoracocentesis is a temporary measure and definitive treatment involves the insertion of a chest drain.

An anterolateral thoracotomy is a surgical procedure performed on the front part of the chest wall. It is commonly used in Emergency Department thoracotomy, with a preference for a left-sided approach in patients with traumatic arrest or left-sided chest injuries. However, in patients with right-sided chest injuries and profound hypotension but have not arrested, a right-sided approach is recommended.

The procedure is carried out in the following steps:
– An incision is made along the 4th or 5th intercostal space, starting from the sternum at the front and extending to the posterior axillary line.
– The incision should be deep enough to partially cut through the latissimus dorsi muscle.
– The skin, subcutaneous fat, and superficial portions of the pectoralis and serratus muscles are divided.
– The parietal pleura is divided, allowing entry into the pleural cavity.
– The intercostal muscles are completely cut, and a rib spreader is placed and opened to provide visualization of the thoracic cavity.
– The anterolateral approach allows access to important anatomical structures during resuscitation, including the pulmonary hilum, heart, and aorta.

In cases where there is suspicion of a right-sided heart injury, an additional incision can be made on the right side, extending across the entire chest. This is known as a bilateral anterolateral thoracotomy or a clamshell thoracotomy.

The main objectives in managing haemothorax are to restore the lost blood volume and relieve pressure in the pleural space. These actions are crucial for improving the patient’s oxygen levels.

Further Reading:

Haemothorax is the accumulation of blood in the pleural cavity of the chest, usually resulting from chest trauma. It can be difficult to differentiate from other causes of pleural effusion on a chest X-ray. Massive haemothorax refers to a large volume of blood in the pleural space, which can impair physiological function by causing blood loss, reducing lung volume for gas exchange, and compressing thoracic structures such as the heart and IVC.

The management of haemothorax involves replacing lost blood volume and decompressing the chest. This is done through supplemental oxygen, IV access and cross-matching blood, IV fluid therapy, and the insertion of a chest tube. The chest tube is connected to an underwater seal and helps drain the fluid, pus, air, or blood from the pleural space. In cases where there is prompt drainage of a large amount of blood, ongoing significant blood loss, or the need for blood transfusion, thoracotomy and ligation of bleeding thoracic vessels may be necessary. It is important to have two IV accesses prior to inserting the chest drain to prevent a drop in blood pressure.

In summary, haemothorax is the accumulation of blood in the pleural cavity due to chest trauma. Managing haemothorax involves replacing lost blood volume and decompressing the chest through various interventions, including the insertion of a chest tube. Prompt intervention may be required in cases of significant blood loss or ongoing need for blood transfusion.

Early assessment of the airway is a critical aspect of managing a burned patient. Airway obstruction can occur rapidly due to direct injury or swelling from the burn. If there is a history of trauma, the airway should be evaluated while maintaining cervical spine control.

There are several risk factors for airway obstruction in burned patients, including inhalation injury, soot in the mouth or nostrils, singed nasal hairs, burns to the head, face, and neck, burns inside the mouth, large burn area and increasing burn depth, associated trauma, and a carboxyhemoglobin level above 10%.

In cases where significant swelling is anticipated, it may be necessary to urgently secure the airway with an uncut endotracheal tube before the swelling becomes severe. Delaying recognition of impending airway obstruction can make intubation difficult, and a surgical airway may be required.

The American Burn Life Support (ABLS) guidelines recommend early intubation in certain situations. These include signs of airway obstruction, extensive burns, deep facial burns, burns inside the mouth, significant swelling or risk of swelling, difficulty swallowing, respiratory compromise, decreased level of consciousness, and anticipated transfer of a patient with a large burn and airway issues without qualified personnel to intubate during transport.

Circumferential burns of the neck can cause tissue swelling around the airway, making early intubation necessary in these cases as well.

In cases of penetrating abdominal trauma, two organs that are frequently affected are the liver and the small bowel. This means that when a person sustains a stab wound or any other type of injury that penetrates the abdomen, these two organs are at a higher risk of being damaged.

Further Reading:

Abdominal trauma can be classified into two categories: blunt trauma and penetrating trauma. Blunt trauma occurs when compressive or deceleration forces are applied to the abdomen, often resulting from road traffic accidents or direct blows during sports. The spleen and liver are the organs most commonly injured in blunt abdominal trauma. On the other hand, penetrating trauma involves injuries that pierce the skin and enter the abdominal cavity, such as stabbings, gunshot wounds, or industrial accidents. The bowel and liver are the organs most commonly affected in penetrating injuries.

When it comes to imaging in blunt abdominal trauma, there are three main modalities that are commonly used: focused assessment with sonography in trauma (FAST), diagnostic peritoneal lavage (DPL), and computed tomography (CT). FAST is a non-invasive and quick method used to detect free intraperitoneal fluid, aiding in the decision on whether a laparotomy is needed. DPL is also used to detect intraperitoneal blood and can be used in both unstable blunt abdominal trauma and penetrating abdominal trauma. However, it is more invasive and time-consuming compared to FAST and has largely been replaced by it. CT, on the other hand, is the gold standard for diagnosing intra-abdominal pathology and is used in stable abdominal trauma patients. It offers high sensitivity and specificity but requires a stable and cooperative patient. It also involves radiation and may have delays in availability.

In the case of penetrating trauma, it is important to assess these injuries with the help of a surgical team. Penetrating objects should not be removed in the emergency department as they may be tamponading underlying vessels. Ideally, these injuries should be explored in the operating theater.

In summary, abdominal trauma can be classified into blunt trauma and penetrating trauma. Blunt trauma is caused by compressive or deceleration forces and commonly affects the spleen and liver. Penetrating trauma involves injuries that pierce the skin and commonly affect the bowel and liver. Imaging modalities such as FAST, DPL, and CT are used to assess and diagnose abdominal trauma, with CT being the gold standard. Penetrating injuries should be assessed by a surgical team and should ideally be explored in the operating theater.

Traumatic aortic rupture, also known as traumatic aortic disruption or transection, occurs when the aorta is torn or ruptured due to physical trauma. This condition often leads to sudden death because of severe bleeding. Motor vehicle accidents and falls from great heights are the most common causes of this injury.

The patients with the highest chances of survival are those who have an incomplete tear near the ligamentum arteriosum of the proximal descending aorta, close to where the left subclavian artery branches off. The presence of an intact adventitial layer or contained mediastinal hematoma helps maintain continuity and prevents immediate bleeding and death. If promptly identified and treated, survivors of these injuries can recover. In cases where traumatic aortic rupture leads to sudden death, approximately 50% of patients have damage at the aortic isthmus, while around 15% have damage in either the ascending aorta or the aortic arch.

Initial chest X-rays may show signs consistent with a traumatic aortic injury. However, false-positive and false-negative results can occur, and sometimes there may be no abnormalities visible on the X-ray. Some of the possible X-ray findings include a widened mediastinum, hazy left lung field, obliteration of the aortic knob, fractures of the 1st and 2nd ribs, deviation of the trachea to the right, presence of a pleural cap, elevation and rightward shift of the right mainstem bronchus, depression of the left mainstem bronchus, obliteration of the space between the pulmonary artery and aorta, and deviation of the esophagus or NG tube to the right.

A helical contrast-enhanced CT scan of the chest is the preferred initial investigation for suspected blunt aortic injury. It has proven to be highly accurate, with close to 100% sensitivity and specificity. CT scanning should be performed liberally, as chest X-ray findings can be unreliable. However, hemodynamically unstable patients should not be placed in a CT scanner. If the CT results are inconclusive, aortography or trans-oesophageal echo can be performed for further evaluation.

Immediate surgical intervention is necessary for these injuries. Endovascular repair is the most common method used and has excellent short-term outcomes. Open repair may also be performed depending on the circumstances. It is important to control heart rate and blood pressure during stabilization to reduce the risk of rupture. Pain should be managed with appropriate analgesic

Intraosseous access is recommended in trauma, burns, or resuscitation situations when other attempts at venous access fail or would take longer than one minute. It is particularly recommended for circulatory access in pediatric cardiac arrest cases. This technique can also be used when urgent blood sampling or intravenous access is needed and traditional cannulation is difficult and time-consuming. It serves as a temporary measure to stabilize the patient and facilitate long-term intravenous access.

Potential complications of intraosseous access include compartment syndrome, infection, and fracture. Therefore, it is contraindicated to use this method on the side of definitively fractured bones or limbs with possible proximal fractures. It should also not be used at sites of previous attempts or in patients with conditions such as osteogenesis imperfecta or osteopetrosis.

There are several possible sites for intraosseous access insertion. These include the proximal humerus, approximately 1 cm above the surgical neck; the proximal tibia, on the anterior surface, 2-3 cm below the tibial tuberosity; the distal tibia, 3 cm proximal to the most prominent aspect of the medial malleolus; the femoral region, on the anterolateral surface, 3 cm above the lateral condyle; the iliac crest; and the sternum.

A needle cricothyroidotomy is a procedure used in emergency situations to provide oxygenation when intubation and oxygenation are not possible. It is typically performed when a patient cannot be intubated or oxygenated. There are certain conditions that make this procedure contraindicated, such as local infection, distorted anatomy, previous failed attempts, and swelling or mass lesions.

To perform a needle cricothyroidotomy, the necessary equipment should be assembled and prepared. The patient should be positioned supine with their neck in a neutral position. The neck should be cleaned in a sterile manner using antiseptic swabs. If time allows, the area should be anesthetized locally. A 12 or 14 gauge over-the-needle catheter should be assembled to a 10 mL syringe.

The cricothyroid membrane, located between the thyroid and cricoid cartilage, should be identified anteriorly. The trachea should be stabilized with the thumb and forefinger of one hand. Using the other hand, the skin should be punctured in the midline with the needle over the cricothyroid membrane. The needle should be directed at a 45° angle caudally while negative pressure is applied to the syringe. Needle aspiration should be maintained as the needle is inserted through the lower half of the cricothyroid membrane, with air aspiration indicating entry into the tracheal lumen.

Once the needle is in place, the syringe and needle should be removed while the catheter is advanced to the hub. The oxygen catheter should be attached and the airway secured. It is important to be aware of possible complications, such as technique failure, cannula obstruction or dislodgement, injury to local structures, and surgical emphysema if high flow oxygen is administered through a malpositioned cannula.

The effects of adrenaline on alpha-adrenergic receptors result in the narrowing of blood vessels throughout the body, leading to increased pressure in the coronary and cerebral arteries. On the other hand, the effects of adrenaline on beta-adrenergic receptors enhance the strength of the heart’s contractions and increase the heart rate, which can potentially improve blood flow to the coronary and cerebral arteries. However, it is important to note that these positive effects may be counteracted by the simultaneous increase in oxygen consumption by the heart, the occurrence of abnormal heart rhythms, reduced oxygen levels due to abnormal blood flow patterns, impaired small blood vessel function, and worsened heart function following a cardiac arrest.

Circumferential burns on the thorax can limit the expansion of the chest and hinder proper ventilation. When burns penetrate deeply, they can cause the formation of dead tissue called eschar, which is usually white or black in color. This eschar is contracted and inflexible compared to healthy tissue, leading to restricted movement and impaired breathing. In some cases, burns on the thorax can result in respiratory failure. Marjolin’s ulcer, a rare condition, refers to the development of squamous cell carcinoma in burnt or scarred tissue. Burn injuries often lead to the release of excess potassium into the bloodstream, which can cause hyperkalemia. Carbon monoxide poisoning typically occurs when someone inhales CO over a prolonged period, usually due to incomplete combustion of hydrocarbons. However, the history provided in this case does not align with prolonged exposure to carbon monoxide.

Further Reading:

Burn injuries can be classified based on their type (degree, partial thickness or full thickness), extent as a percentage of total body surface area (TBSA), and severity (minor, moderate, major/severe). Severe burns are defined as a >10% TBSA in a child and >15% TBSA in an adult.

When assessing a burn, it is important to consider airway injury, carbon monoxide poisoning, type of burn, extent of burn, special considerations, and fluid status. Special considerations may include head and neck burns, circumferential burns, thorax burns, electrical burns, hand burns, and burns to the genitalia.

Airway management is a priority in burn injuries. Inhalation of hot particles can cause damage to the respiratory epithelium and lead to airway compromise. Signs of inhalation injury include visible burns or erythema to the face, soot around the nostrils and mouth, burnt/singed nasal hairs, hoarse voice, wheeze or stridor, swollen tissues in the mouth or nostrils, and tachypnea and tachycardia. Supplemental oxygen should be provided, and endotracheal intubation may be necessary if there is airway obstruction or impending obstruction.

The initial management of a patient with burn injuries involves conserving body heat, covering burns with clean or sterile coverings, establishing IV access, providing pain relief, initiating fluid resuscitation, measuring urinary output with a catheter, maintaining nil by mouth status, closely monitoring vital signs and urine output, monitoring the airway, preparing for surgery if necessary, and administering medications.

Burns can be classified based on the depth of injury, ranging from simple erythema to full thickness burns that penetrate into subcutaneous tissue. The extent of a burn can be estimated using methods such as the rule of nines or the Lund and Browder chart, which takes into account age-specific body proportions.

Fluid management is crucial in burn injuries due to significant fluid losses. Evaporative fluid loss from burnt skin and increased permeability of blood vessels can lead to reduced intravascular volume and tissue perfusion. Fluid resuscitation should be aggressive in severe burns, while burns <15% in adults and <10% in children may not require immediate fluid resuscitation. The Parkland formula can be used to calculate the intravenous fluid requirements for someone with a significant burn injury.

Fractures that extend into the calcaneocuboid joint are commonly intra-articular. It is recommended to refer patients to orthopaedics for further evaluation and treatment. Conservative management usually involves keeping the patient non-weight bearing for a period of 6-12 weeks.

Further Reading:

Calcaneus fractures are a common type of lower limb and joint injury. The calcaneus, or heel bone, is the most frequently fractured tarsal bone. These fractures are often intra-articular, meaning they involve the joint. The most common cause of calcaneus fractures is a fall or jump from a height.

When assessing calcaneus fractures, X-rays are used to visualize the fracture lines. Two angles are commonly assessed to determine the severity of the fracture. Böhler’s angle, which measures the angle between two tangent lines drawn across the anterior and posterior borders of the calcaneus, should be between 20-40 degrees. If it is less than 20 degrees, it indicates a calcaneal fracture with flattening. The angle of Gissane, which measures the depression of the posterior facet of the subtalar joint, should be between 120-145 degrees. An increased angle of Gissane suggests a calcaneal fracture.

In the emergency department, the management of a fractured calcaneus involves identifying the injury and any associated injuries, providing pain relief, elevating the affected limb(s), and referring the patient to an orthopedic specialist. It is important to be aware that calcaneus fractures are often accompanied by other injuries, such as bilateral fractures of vertebral fractures.

The definitive management of a fractured calcaneus can be done conservatively or through surgery, specifically open reduction internal fixation (ORIF). The orthopedic team will typically order a CT or MRI scan to classify the fracture and determine the most appropriate treatment. However, a recent UK heel fracture trial suggests that in most cases, ORIF does not improve fracture outcomes.

The main sensory supply to the back of the scalp comes from the C2 and C3 cervical nerves. The scalp receives innervation from branches of both the trigeminal nerve and the cervical nerves, as depicted in the illustration in the notes. The C2 and C3 cervical nerves are primarily responsible for supplying sensation to the posterior scalp.

Further Reading:

The scalp is the area of the head that is bordered by the face in the front and the neck on the sides and back. It consists of several layers, including the skin, connective tissue, aponeurosis, loose connective tissue, and periosteum of the skull. These layers provide protection and support to the underlying structures of the head.

The blood supply to the scalp primarily comes from branches of the external carotid artery and the ophthalmic artery, which is a branch of the internal carotid artery. These arteries provide oxygen and nutrients to the scalp tissues.

The scalp also has a complex venous drainage system, which is divided into superficial and deep networks. The superficial veins correspond to the arterial branches and are responsible for draining blood from the scalp. The deep venous network is drained by the pterygoid venous plexus.

In terms of innervation, the scalp receives sensory input from branches of the trigeminal nerve and the cervical nerves. These nerves transmit sensory information from the scalp to the brain, allowing us to perceive touch, pain, and temperature in this area.

Patients who have suffered burns should receive high-flow oxygen (15 L) through a reservoir bag while their breathing is being evaluated. If intubation is necessary, it is crucial to use an appropriately sized endotracheal tube (ETT). Using a tube that is too small can make it difficult or even impossible to ventilate the patient, clear secretions, or perform bronchoscopy.

According to the ATLS guidelines, adults should be intubated using an ETT with an internal diameter (ID) of at least 7.5 mm or larger. Children, on the other hand, should have an ETT with an ID of at least 4.5 mm. Once a patient has been intubated, it is important to continue administering 100% oxygen until their carboxyhemoglobin levels drop to less than 5%.

To protect the lungs, it is recommended to use lung protective ventilation techniques. This involves using low tidal volumes (4-8 mL/kg) and ensuring that peak inspiratory pressures do not exceed 30 cmH2O.

Intubation is necessary for patients with a compromised airway. In comatose patients, a Glasgow Coma Scale (GCS) score of 8 or less indicates the need for intubation. According to NICE guidelines, immediate intubation and ventilation are advised in cases of coma where the patient is not responsive to commands, not speaking, and not opening their eyes. Other indications for intubation include the loss of protective laryngeal reflexes, ventilatory insufficiency as indicated by abnormal blood gases, spontaneous hyperventilation, irregular respirations, significantly deteriorating conscious level, unstable fractures of the facial skeleton, copious bleeding into the mouth, and seizures. In certain cases, intubation and ventilation should be performed before the patient begins their journey.

Further Reading:

Indications for CT Scanning in Head Injuries (Adults):
– CT head scan should be performed within 1 hour if any of the following features are present:
– GCS < 13 on initial assessment in the ED
– GCS < 15 at 2 hours after the injury on assessment in the ED
– Suspected open or depressed skull fracture
– Any sign of basal skull fracture (haemotympanum, ‘panda’ eyes, cerebrospinal fluid leakage from the ear or nose, Battle’s sign)
– Post-traumatic seizure
– New focal neurological deficit
– > 1 episode of vomiting

Indications for CT Scanning in Head Injuries (Children):
– CT head scan should be performed within 1 hour if any of the features in List 1 are present:
– Suspicion of non-accidental injury
– Post-traumatic seizure but no history of epilepsy
– GCS < 14 on initial assessment in the ED for children more than 1 year of age
– Paediatric GCS < 15 on initial assessment in the ED for children under 1 year of age
– At 2 hours after the injury, GCS < 15
– Suspected open or depressed skull fracture or tense fontanelle
– Any sign of basal skull fracture (haemotympanum, ‘panda’ eyes, cerebrospinal fluid leakage from the ear or nose, Battle’s sign)
– New focal neurological deficit
– For children under 1 year, presence of bruise, swelling or laceration of more than 5 cm on the head

– CT head scan should be performed within 1 hour if none of the above features are present but two or more of the features in List 2 are present:
– Loss of consciousness lasting more than 5 minutes (witnessed)
– Abnormal drowsiness
– Three or more discrete episodes of vomiting
– Dangerous mechanism of injury (high-speed road traffic accident, fall from a height)

This patient is currently experiencing moderate shock, classified as class III. This level of shock corresponds to a loss of 30-40% of their circulatory volume, which is equivalent to a blood loss of 1500-2000 mL.

Hemorrhage can be categorized into four different classes based on physiological parameters and clinical signs. These classes are classified as class I, class II, class III, and class IV.

In class I hemorrhage, the blood loss is up to 750 mL or up to 15% of the blood volume. The pulse rate is less than 100 beats per minute, and the systolic blood pressure is normal. The pulse pressure may be normal or increased, and the respiratory rate is within the range of 14-20 breaths per minute. The urine output is greater than 30 mL per hour, and the patient’s CNS/mental status is slightly anxious.

In class II hemorrhage, the blood loss ranges from 750-1500 mL or 15-30% of the blood volume. The pulse rate is between 100-120 beats per minute, and the systolic blood pressure remains normal. The pulse pressure is decreased, and the respiratory rate increases to 20-30 breaths per minute. The urine output decreases to 20-30 mL per hour, and the patient may experience mild anxiety.

The patient in this case is in class III hemorrhage, with a blood loss of 1500-2000 mL or 30-40% of the blood volume. The pulse rate is elevated, ranging from 120-140 beats per minute, and the systolic blood pressure is decreased. The pulse pressure is also decreased, and the respiratory rate is elevated to 30-40 breaths per minute. The urine output decreases significantly to 5-15 mL per hour, and the patient may experience anxiety and confusion.

Class IV hemorrhage represents the most severe level of blood loss, with a loss of over 40% of the blood volume. The pulse rate is greater than 140 beats per minute, and the systolic blood pressure is significantly decreased. The pulse pressure is decreased, and the respiratory rate is over 40 breaths per minute. The urine output becomes negligible, and the patient may become confused and lethargic.

A Focussed Assessment with Sonography for Trauma (FAST) scan is a point-of-care ultrasound examination conducted when a trauma patient arrives. Its primary purpose is to identify the presence of intra-abdominal free fluid, which is typically assumed to be haemoperitoneum in the context of trauma. This information helps healthcare providers make decisions regarding further management of the patient.

The sensitivity of FAST scanning for detecting intraperitoneal fluid is approximately 90%, while its specificity is around 95%. However, its sensitivity for detecting solid organ injuries is much lower. As a result, FAST scanning has largely replaced diagnostic peritoneal lavage as the preferred initial method for assessing haemoperitoneum.

During a standard FAST scan, four regions are assessed. The first is the subxiphoid transverse view, which is used to check for pericardial effusion and left lobe liver injuries. The second is the longitudinal view of the right upper quadrant, which helps identify right liver injuries, right kidney injuries, and fluid in the hepatorenal recess (Morison’s pouch). The third is the longitudinal view of the left upper quadrant, which is used to assess for splenic injury and left kidney injury. Lastly, the transverse and longitudinal views of the suprapubic region are examined to assess the bladder and fluid in the pouch of Douglas.

In addition to the standard FAST scan, an extended FAST or eFAST may also be performed. This involves examining the left and right thoracic regions to assess for the presence of pneumothorax and haemothorax.

The hepatorenal recess is the deepest part of the peritoneal cavity when a patient is lying flat. Therefore, it is the most likely area for fluid to accumulate in a supine position.

When assessing for cervical spine injury, it is recommended to use the Canadian C-spine rules. These rules help determine the risk level for a potential injury. High-risk factors include being over the age of 65, experiencing a dangerous mechanism of injury (such as a fall from a height or a high-speed motor vehicle collision), or having paraesthesia in the upper or lower limbs. Low-risk factors include being involved in a minor rear-end motor vehicle collision, being comfortable in a sitting position, being ambulatory since the injury, having no midline cervical spine tenderness, or experiencing a delayed onset of neck pain. If a person is unable to actively rotate their neck 45 degrees to the left and right, their risk level is considered low. If they have one of the low-risk factors and can actively rotate their neck, their risk level remains low.

If a high-risk factor is identified or if a low-risk factor is identified and the person is unable to actively rotate their neck, full in-line spinal immobilization should be maintained and imaging should be requested. Additionally, if a patient has risk factors for thoracic or lumbar spine injury, imaging should be requested. However, if a patient has low-risk factors for cervical spine injury, is pain-free, and can actively rotate their neck, full in-line spinal immobilization and imaging are not necessary.

NICE recommends CT as the primary imaging modality for cervical spine injury in adults aged 16 and older, while MRI is recommended as the primary imaging modality for children under 16.

Different mechanisms of spinal trauma can cause injury to the spine in predictable ways. The majority of cervical spine injuries are caused by flexion combined with rotation. Hyperflexion can result in compression of the anterior aspects of the vertebral bodies, stretching and tearing of the posterior ligament complex, chance fractures (also known as seatbelt fractures), flexion teardrop fractures, and odontoid peg fractures. Flexion and rotation can lead to disruption of the posterior ligament complex and posterior column, fractures of facet joints, lamina, transverse processes, and vertebral bodies, and avulsion of spinous processes. Hyperextension can cause injury to the anterior column, anterior fractures of the vertebral body, and potential retropulsion of bony fragments or discs into the spinal canal. Rotation can result in injury to the posterior ligament complex and facet joint dislocation.

Traumatic aortic rupture, also known as traumatic aortic disruption or transection, occurs when the aorta is torn or ruptured due to physical trauma. This condition often leads to sudden death because of severe bleeding. Motor vehicle accidents and falls from great heights are the most common causes of this injury.

The patients with the highest chances of survival are those who have an incomplete tear near the ligamentum arteriosum of the proximal descending aorta, close to where the left subclavian artery branches off. The presence of an intact adventitial layer or contained mediastinal hematoma helps maintain continuity and prevents immediate bleeding and death. If promptly identified and treated, survivors of these injuries can recover. In cases where traumatic aortic rupture leads to sudden death, approximately 50% of patients have damage at the aortic isthmus, while around 15% have damage in either the ascending aorta or the aortic arch.

Initial chest X-rays may show signs consistent with a traumatic aortic injury. However, false-positive and false-negative results can occur, and sometimes there may be no abnormalities visible on the X-ray. Some of the possible X-ray findings include a widened mediastinum, hazy left lung field, obliteration of the aortic knob, fractures of the 1st and 2nd ribs, deviation of the trachea to the right, presence of a pleural cap, elevation and rightward shift of the right mainstem bronchus, depression of the left mainstem bronchus, obliteration of the space between the pulmonary artery and aorta, and deviation of the esophagus or NG tube to the right.

A helical contrast-enhanced CT scan of the chest is the preferred initial investigation for suspected blunt aortic injury. It has proven to be highly accurate, with close to 100% sensitivity and specificity. CT scanning should be performed liberally, as chest X-ray findings can be unreliable. However, hemodynamically unstable patients should not be placed in a CT scanner. If the CT results are inconclusive, aortography or trans-oesophageal echo can be performed for further evaluation.

Immediate surgical intervention is necessary for these injuries. Endovascular repair is the most common method used and has excellent short-term outcomes. Open repair may also be performed depending on the circumstances. It is important to control heart rate and blood pressure during stabilization to reduce the risk of rupture. Pain should be managed with appropriate analgesic