B J Kim1, R W Day2, C H Davis1, N Narula1, M H Kroll3, C W D Tzeng1, T A Aloia1. 1. Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. 2. Department of Surgery, Mayo Clinic, Phoenix, AZ, USA. 3. Section of Benign Hematology, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Abstract
Essentials The risk for venous thromboembolism after liver surgery remains high in the modern era. We evaluated the safety/efficacy of extended anticoagulation in liver surgery. This protocol reports zero venous thromboembolism events in 124 liver surgery patients. Extended anticoagulation after oncologic liver surgery is safe and effective. SUMMARY: Background The incidence of venous thromboembolism (VTE) after liver surgery remains high. Objective To evaluate the safety and efficacy of extended pharmacologic thromboprophylaxis after liver surgery for the prevention of VTE. Patient/Methods From August 2013 to April 2015, 124 patients who underwent liver resection for malignancy were placed on an extended pharmacologic thromboprophylaxis protocol. Intraoperative VTE prophylaxis included thromboembolic deterrent hoses and sequential compression devices. Once hemostasis had been ensured following hepatectomy, daily anticoagulant VTE prophylaxis was initiated for the duration of hospitalization. After hospital discharge, the large majority of patients (114, 91.9%) continued to receive anticoagulant thromboprophylaxis (enoxaparin) to complete a total course of 14 days after minor/minimally invasive hepatectomy or 28 days after major hepatectomy or a history of VTE. Results The cohort included 39 (31.2%) major hepatectomies and 38 (31.5%) minor/minimally invasive approaches. The intraoperative, postoperative and overall transfusion rates were 5.6%, 8.1%, and 10.5%, respectively. Pharmacologic thromboprophylaxis was started on postoperative day (POD) 0 for 40 (32.3%) patients and on POD 1 for 84 (67.7%) patients. During 90 days of follow-up, no postoperative symptomatic deep vein thrombosis or pulmonary embolic events were diagnosed. Standard-protocol computed tomography scans of the chest, abdomen and pelvis that were obtained for 112 (90.3%) study patients showed no pulmonary emboli, or other thoracic, splanchnic or ileofemoral vein thromboses. Two (1.6%) patients had minor bleeding events that resolved after discontinuation of enoxaparin, requiring neither blood transfusion nor reoperation. The severe complication rate was 5.6%, with no 90-day mortalities. Conclusions These preliminary data suggest that extended pharmacologic thromboprophylaxis for liver surgery patients is safe and effective.
Essentials The risk for venous thromboembolism after liver surgery remains high in the modern era. We evaluated the safety/efficacy of extended anticoagulation in liver surgery. This protocol reports zero venous thromboembolism events in 124 liver surgery patients. Extended anticoagulation after oncologic liver surgery is safe and effective. SUMMARY: Background The incidence of venous thromboembolism (VTE) after liver surgery remains high. Objective To evaluate the safety and efficacy of extended pharmacologic thromboprophylaxis after liver surgery for the prevention of VTE. Patient/Methods From August 2013 to April 2015, 124 patients who underwent liver resection for malignancy were placed on an extended pharmacologic thromboprophylaxis protocol. Intraoperative VTE prophylaxis included thromboembolic deterrent hoses and sequential compression devices. Once hemostasis had been ensured following hepatectomy, daily anticoagulant VTE prophylaxis was initiated for the duration of hospitalization. After hospital discharge, the large majority of patients (114, 91.9%) continued to receive anticoagulant thromboprophylaxis (enoxaparin) to complete a total course of 14 days after minor/minimally invasive hepatectomy or 28 days after major hepatectomy or a history of VTE. Results The cohort included 39 (31.2%) major hepatectomies and 38 (31.5%) minor/minimally invasive approaches. The intraoperative, postoperative and overall transfusion rates were 5.6%, 8.1%, and 10.5%, respectively. Pharmacologic thromboprophylaxis was started on postoperative day (POD) 0 for 40 (32.3%) patients and on POD 1 for 84 (67.7%) patients. During 90 days of follow-up, no postoperative symptomatic deep vein thrombosis or pulmonary embolic events were diagnosed. Standard-protocol computed tomography scans of the chest, abdomen and pelvis that were obtained for 112 (90.3%) study patients showed no pulmonary emboli, or other thoracic, splanchnic or ileofemoral vein thromboses. Two (1.6%) patients had minor bleeding events that resolved after discontinuation of enoxaparin, requiring neither blood transfusion nor reoperation. The severe complication rate was 5.6%, with no 90-day mortalities. Conclusions These preliminary data suggest that extended pharmacologic thromboprophylaxis for liver surgery patients is safe and effective.
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