How accurate is computed tomography in the diagnosis of intra-abdominal injuries in stable patients with anterior abdominal stab wounds?

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Why is this study important?

Routine exploratory laparotomy (LAP) for anterior abdominal stab wounds (AASW) results in non-therapeutic surgical rates of up to 53%. Computed tomography scan of the abdomen and pelvis (CTAP) is a widely available imaging modality routinely used in the management of AASW patients. This review seeks to determine whether the hemodynamically stable AASW patient can be safely discharged without additional observation or diagnostic studies following a negative CTAP.

Which, if any, threats to validity are most likely to have an impact on the results and how?

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