Podcast
Questions and Answers
Which grade of liver injury is characterized by a subcapsular hematoma involving more than 75% of the hepatic lobe?
Which grade of liver injury is characterized by a subcapsular hematoma involving more than 75% of the hepatic lobe?
What type of liver injury includes hepatic vascular disruption?
What type of liver injury includes hepatic vascular disruption?
Which of the following is NOT a condition associated with liver trauma?
Which of the following is NOT a condition associated with liver trauma?
What is considered a Grade II liver injury?
What is considered a Grade II liver injury?
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Which type of liver injury may involve juxtahepatic venous injuries?
Which type of liver injury may involve juxtahepatic venous injuries?
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What is characterized as Grade 1 under the American Association for the Surgery of Trauma grading system for liver injuries?
What is characterized as Grade 1 under the American Association for the Surgery of Trauma grading system for liver injuries?
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In the grading system for liver injuries, what depth of hematoma is classified as Grade 1?
In the grading system for liver injuries, what depth of hematoma is classified as Grade 1?
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Which of the following descriptions does NOT apply to Grade 1 liver injury?
Which of the following descriptions does NOT apply to Grade 1 liver injury?
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What outcome would classify a liver injury as more severe than Grade 1?
What outcome would classify a liver injury as more severe than Grade 1?
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Which condition reflects the most critical categorization in liver injury grading beyond Grade 1?
Which condition reflects the most critical categorization in liver injury grading beyond Grade 1?
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What is indicated by a grade 6 liver injury following a motor vehicle accident?
What is indicated by a grade 6 liver injury following a motor vehicle accident?
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What imaging finding helps confirm a global liver injury?
What imaging finding helps confirm a global liver injury?
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What complication is commonly associated with a grade 6 liver injury?
What complication is commonly associated with a grade 6 liver injury?
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Which of the following is a potential management consideration for a grade 6 liver injury?
Which of the following is a potential management consideration for a grade 6 liver injury?
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In the context of liver injury grading, what does the presence of capsular laceration suggest?
In the context of liver injury grading, what does the presence of capsular laceration suggest?
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Study Notes
Liver Injury Overview
- Liver trauma can manifest as subcapsular hematoma, intrahepatic hematoma, laceration, contusion, hepatic vascular disruption, and bile duct injury.
Grading of Liver Injury by AAST
- Grading system developed by the American Association for the Surgery of Trauma (AAST).
Grade I
- Involves a subcapsular hematoma covering less than 10% of the hepatic lobe.
- Less than 1 cm deep capsule tear in the liver.
Grade II
- A hematoma greater than 10% of the liver lobe without significant parenchymal injury.
Grade III
- Includes larger lacerations or hematomas, typically over 3 cm deep, affecting multiple segments.
Grade IV
- Involves major lacerations and vascular injuries, possibly including juxtahepatic venous injuries.
Grade V
- Extensive liver damage or near-total vascular disruption, leading to significant hemorrhage.
Grade VI
- Total devascularization of the liver, often resulting from severe trauma, such as in a motor vehicle accident.
Diagnostic Imaging
- Computed tomography (CT) can reveal extensive, global liver injury, essential for assessing the severity of trauma.
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Description
This quiz covers the various types of liver injuries and the grading system established by the American Association for the Surgery of Trauma (AAST). Each grade from I to VI highlights the severity and extent of liver damage. Test your knowledge on liver trauma and its classifications.
