[Mesenteric arterial thrombosis in protein S deficiency]

Arterial thrombosis is very rarely described in patients with coagulation factors deficiency. We report the first case of superior mesenteric artery thrombosis of a normal mesenteric artery associated with protein S deficiency, causing massive mesenteric infarction with short bowel syndrome. Eight-month parenteral nutrition and definitive antivitamin K anticoagulation were required in this 72 year-old patient. The initial oral anticoagulant malabsorption disappeared a few months later as clinical and biological course improved. Rapid intestinal adaptation was probably consecutive to early enteral refeeding. The possibility of reintroducing antivitamin K despite initial inefficacy should be stressed, as well as the necessity of an exhaustive coagulation work-up in patients with mesenteric infarction.