Routine anticoagulation for venous thromboembolism prevention following laparoscopic gastric bypass.

OBJECTIVE: To compare the rates of venous thromboembolism (VTE) by using routine postoperative enoxaparin versus early ambulation, SCDs, hydration, and selective prophylactic pharmacologic anticoagulation. METHODS: 1,692 patients undergoing laparoscopic gastric bypass from October 2001 to October 2008 were included and divided into 2 groups based on when they were operated upon. Group A (435 patients) received routine enoxaparin 12 hours after surgery. Group B (1,257 patients) received selective pharmacologic anticoagulation, in high-risk patients only. RESULTS: Mean operating time was 144±26 minutes (Group A) and 126±15 minutes (Group B). Mean length of stay was 2.3±1.5 days for Group A and 1.4±1.2 for Group B. Intraluminal bleeding occurred in 21 patients (4.8%) in Group A and 5 (0.9%) in Group B; none required intervention. Five pulmonary embolisms occurred in Group A (1.1%) and none in Group B. Seven patients in Group A (1.7%) and 6 (0.47%) in Group B had clinically evident DVT. Two non-VTE related deaths occurred in Group A. CONCLUSIONS: Adequate VTE prophylaxis is achieved using SCDs, early ambulation, emphasis on hydration, and shorter operating times. Bariatric surgery can be safely performed without pharmacologic VTE prophylaxis in all but the high-risk population. Fewer bleeding complications occur without the use of anticoagulants.

Cardiac tamponade as a life-threatening complication in hernia repair.

BACKGROUND: The placement of mesh in the repair of all types of hernia has been reported to decrease recurrence rates. There are several well known complications related to mesh repairs, including infection, erosion, seroma, and pain. Lesser reported are cardiac injuries secondary to anchoring of the mesh to the diaphragm. METHODS: We report 2 previously unreported, unpublished cases of cardiac tamponade after mesh fixation to the diaphragm and present a review of the literature and search of the US Food and Drug Administration's Manufacturer and User Device Experience (MAUDE) database. RESULTS: We reviewed a total of 10 cases of cardiac tamponade in hiatal hernia repair, 6 resulting in patient mortality, 5 cases in ventral hernia repair, 4 being fatal. Ten cases were caused by the helical tacker, 2 by sutures, 1 by the straight stapler, and in 1 case the cause was not identified. CONCLUSION: When anchoring mesh to the diaphragm, it is necessary to consider the risk of injury to the heart and cardiac tamponade, especially if the helical tacker is used in this region. Only with appropriate awareness and recognition can this catastrophic complication be avoided.