Emergency diagnosis of upper gastrointestinal bleeding by detection of haemoglobin in nasogastric aspirate.

Objective: To determine the accuracy of the Faecal Occult Blood-Transferrin test (FOB-T; Certest Biotec, San Mateo de Gállego, Spain) for detection of blood in nasogastric aspirate, and its emergency diagnostic value for upper gastrointestinal bleeding (UGIB).

Methods: Nasogastric aspirate was collected from patients with haematemesis on admission to hospital. Haemoglobin was quantified on admission and after 12 h.

Diagnostic value of plasminogen activity level in acute mesenteric ischemia.

Aim: To investigate the changes in plasminogen activity level during mesenteric ischemia.

Methods: We performed laparotomy in 90 female Wistar-Albino rats (average weight 230 g). In sham groups (SL) (Groups I and II) the superior mesenteric artery (SMA) and vein (SMV) were explored, but not tied.