title: Postoperative thromboembolic complications despite heparin prophylaxis in major abdominal surgery.
abstract: 181 patients who received low-dose heparin prophylaxis in connection with major abdominal surgery were screened for postoperative thromboembolism by means of the 125 I-fibrinogen uptake test, venography and ventilation/perfusion lung scans. Among a number of potential risk factors analyzed only colonic surgery and preoperative anaemia were associated with significantly increased risk of postoperative thromboembolism.
mesh_terms: D000005:Abdomen / Q000601:surgery*; D000328:Adult; D000368:Aged; D003106:Colon / Q000601:surgery; D005260:Female; D005340:Fibrinogen; D006493:Heparin / Q000627:therapeutic use*; D006801:Humans; D007457:Iodine Radioisotopes; D008168:Lung / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D010690:Phlebography; D011183:Postoperative Complications / Q000175:diagnosis / Q000517:prevention & control; D011292:Premedication; D011877:Radionuclide Imaging; D012306:Risk; D013923:Thromboembolism / Q000175:diagnosis / Q000517:prevention & control*
chemical_list: D007457:Iodine Radioisotopes; D005340:Fibrinogen; D006493:Heparin