A cross-sectional evaluation of venous thromboembolism risk and use of venous thromboembolism prophylaxis in hospitalized patients in Senegal

SummaryBackgroundVenous thromboembolism is a common and preventable cause of morbidity and mortality in hospitalized patients. There is a lack of data on the distribution of risk factors and prophylaxis practices in sub-Saharan Africa.AimTo assess the prevalence of venous thromboembolism risk in hospitalized patients and to determine the proportion of at-risk patients who receive prophylaxis.MethodsThe study was a cross-sectional hospital-based survey. On the basis of the global ENDORSE methodology, patients aged≥40 years admitted to a medical ward or those aged≥18 years admitted to a surgical ward were assessed for risk of venous thromboembolism by hospital chart review. Distribution of risk factors and coverage of prophylaxis in at-risk patients were determined using the 2004 American College of Chest Physicians evidence-based consensus guidelines.ResultsFrom October to November 2008, 520 patients (278 medical; 242 surgical) were enrolled in 12 hospitals across Senegal. Two hundred and ninety-eight (57%) were at risk of venous thromboembolism; 152 (57.4%) medical patients and 146 (60.3%) surgical patients. Among those at risk, 48 (31.6%) medical patients and 52 (35.6%) surgical patients received a prescription for prophylaxis. Among patients without contraindication to anticoagulants, 33.8% (46/136) on medical wards and 37.5% (48/128) on surgical wards received prophylaxis.ConclusionThe risk of venous thromboembolism was frequent in hospitalized patients in Senegal but only a few received the recommended prophylaxis. There is a need to implement a programme to improve venous thromboembolism awareness and prophylaxis