D J Humes1,2, A Abdul-Sultan3, A J Walker3, J F Ludvigsson4,5, J West3. 1. Division of Epidemiology and Public Health, School of Medicine, University of Nottingham, City Hospital, Clinical Sciences Building 2, Nottingham, NG5 1PB, UK. david.humes@nottingham.ac.uk. 2. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet Stockholm, Stockholm, Sweden. david.humes@nottingham.ac.uk. 3. Division of Epidemiology and Public Health, School of Medicine, University of Nottingham, City Hospital, Clinical Sciences Building 2, Nottingham, NG5 1PB, UK. 4. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet Stockholm, Stockholm, Sweden. 5. Department of Paediatrics, Örebro University Hospital, 70185, Örebro, Sweden.
Abstract
PURPOSE: Little is known regarding the magnitude and timing of the risk of VTE following inguinal hernia surgery. We aimed to determine the absolute and relative rates of venous thromboembolism (VTE) following planned inguinal hernia repair. METHODS: We analysed male adults with a first inguinal hernia repair with no prior record of VTE from the Clinical Practice Research Datalink, linked to the Hospital Episode Statistics (2001-2011). Crude rates and adjusted hazard ratios (HR) of the first VTE were calculated using Cox regression analysis to compare specific time periods following the surgery compared to the general population. RESULTS: We identified 28,782 men who underwent an inguinal hernia repair with 53 (0.18%) having a first VTE in the 90 days following surgery. The overall rate of VTE in the first 90 days following surgery was 7.61 per 1000 person years (pyrs) (95% CI 5.82-9.96). Increasing age, a body mass index > 30 kg/m2 and an in-patient procedure were associated with an increased risk of VTE, when compared to the general population. The risk of VTE was highest in the 1st month following the surgery with a 2.3- (aHR 2.33; 95% CI 1.09-4.99) and 3.5- (aHR 3.47; 95% CI 2.07-5.83) fold increased risk compared to the general population for both day case and planned in-patient procedures, respectively. CONCLUSIONS: Reassuringly, the absolute rates of VTE following inguinal hernia repair are low. Patients should be informed that their peak risk of VTE is during the 1st month following the surgery. Further studies on the optimum duration of thromboprophylaxis following surgery are required in high-risk patients undergoing hernia repair.
PURPOSE: Little is known regarding the magnitude and timing of the risk of VTE following inguinal hernia surgery. We aimed to determine the absolute and relative rates of venous thromboembolism (VTE) following planned inguinal hernia repair. METHODS: We analysed male adults with a first inguinal hernia repair with no prior record of VTE from the Clinical Practice Research Datalink, linked to the Hospital Episode Statistics (2001-2011). Crude rates and adjusted hazard ratios (HR) of the first VTE were calculated using Cox regression analysis to compare specific time periods following the surgery compared to the general population. RESULTS: We identified 28,782 men who underwent an inguinal hernia repair with 53 (0.18%) having a first VTE in the 90 days following surgery. The overall rate of VTE in the first 90 days following surgery was 7.61 per 1000 person years (pyrs) (95% CI 5.82-9.96). Increasing age, a body mass index > 30 kg/m2 and an in-patient procedure were associated with an increased risk of VTE, when compared to the general population. The risk of VTE was highest in the 1st month following the surgery with a 2.3- (aHR 2.33; 95% CI 1.09-4.99) and 3.5- (aHR 3.47; 95% CI 2.07-5.83) fold increased risk compared to the general population for both day case and planned in-patient procedures, respectively. CONCLUSIONS: Reassuringly, the absolute rates of VTE following inguinal hernia repair are low. Patients should be informed that their peak risk of VTE is during the 1st month following the surgery. Further studies on the optimum duration of thromboprophylaxis following surgery are required in high-risk patients undergoing hernia repair.
Authors: Alberto Meyer; Pierre Blanc; Jean Gabriel Balique; Masaya Kitamura; Ramon Trullenque Juan; Franck Delacoste; Jérôme Atger Journal: Rev Col Bras Cir Date: 2013 Jan-Feb
Authors: Markus Gass; Vanessa M Banz; Laura Rosella; Michel Adamina; Daniel Candinas; Ulrich Güller Journal: World J Surg Date: 2012-12 Impact factor: 3.352