• Emily A Pearsall, Ujash Sheth, Darlene S Fenech, Margaret E McKenzie, J Charles Victor, and Robin S McLeod.
• Zane Cohen Centre for Digestive Diseases, Mount Sinai Hospital, Toronto, ON, Canada.
• J. Gastrointest. Surg. 2010 Nov 1; 14 (11): 1722-31.

IntroductionThe aim was to determine the frequency with which thromboprophylaxis is prescribed, factors predicting its prescription, and the frequency of symptomatic venous thromboembolism in patients admitted with acute abdominal conditions.MethodsCharts of patients admitted with acute abdominal conditions that did not have surgery for at least 24 h following admission were audited to identify if thromboprophylaxis was prescribed, if it was prescribed appropriately, factors affecting its prescription, and the rate of symptomatic venous thromboembolism.ResultsOf 350 patients (176 females, mean age 64.9 ± 18.6), 194 (55.4%) were admitted for bowel obstruction, 113 (32.3%) for biliary conditions, 14 (4.0%) for diverticulitis, 8 (2.3%) for pancreatitis, and 21 (6.0%) for other conditions. One hundred forty-two (40.6%) underwent surgery. Two hundred fifty-two (72.0%, 95% CI 67.3-76.7%) received thromboprophylaxis although only 199 (56.9%, 95% CI 51.7-62.1%) received adequate thromboprophylaxis. Hospital site and having surgery were associated with prescription of thromboprophylaxis. Twelve patients (3.4%, 95% CI 1.5-4.3%) developed symptomatic venous thromboembolism (nine deep venous thrombosis, three pulmonary embolism).ConclusionsDespite patients admitted with acute abdominal conditions being at high risk for development of symptomatic venous thromboembolism, many do not receive adequate thromboprophylaxis. Further work is required to decrease this gap in care.

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