[Acute abdomen in abdominal wall hemorrhage in anticoagulation]

10 patients with a history of systemic anticoagulation presented with an acute abdomen which proved to be due to a rectus sheath hematoma. Four patients gave a history of antecedent trauma. The prothrombin time was prolonged beyond the therapeutic range in 8 patients and therapeutic in two. The diagnosis of rectus sheath hematoma was made by non-invasive imaging (sonography [n = 8], CT-scan) in 9 patients and by operative exploration in one. 8 patients were treated non-operatively and one patient required a delayed evacuation of the infected hematoma. One patient died from myocardial infarction. We conclude that a careful history, physical examination and prothrombin time, in combination with radiologic evaluation (sonography, CT-scan) can confirm the suspected diagnosis of rectus sheath hematoma. It is important to think of this specific hemorrhagic complication induced by anticoagulation to prevent unnecessary surgery.