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  • Title: Tricuspid Valve Detachment in Ventricular Septal Defect Closure Does Not Impact Valve Function.
    Author: Fraser CD, Zhou X, Palepu S, Lui C, Suarez-Pierre A, Crawford TC, Magruder JT, Jacobs ML, Cameron DE, Hibino N, Vricella LA.
    Journal: Ann Thorac Surg; 2018 Jul; 106(1):145-150. PubMed ID: 29625102.
    Abstract:
    BACKGROUND: Although tricuspid valve detachment (TVD) facilitates improved exposure during transatrial ventricular septal defect (VSD) closure, few have analyzed the impact of TVD on long-term valve durability. METHODS: Pediatric patients undergoing VSD closure at our institution from 1997 to 2013 were identified, and charts were retrospectively reviewed. Patients were separated into groups based on utilization of TVD. Propensity score matching was then performed using a nonparsimonious logistic regression model involving 7 variables. Primary outcome was residual TV dysfunction at long-term follow-up, defined as mild (2+) and moderate (3+) TV regurgitation (TR) on follow-up echocardiography. Secondary outcomes included postoperative atrioventricular dissociation, residual VSD, and reinterventions. RESULTS: A total of 247 patients underwent VSD closure; 164 (66.4%) without TVD and 83 (33.6%) with TVD. Median follow-up time was 2,343 days (interquartile range, 1,237 to 3,963.5 days) in the group without TVD versus 1,606 days (interquartile range, 826 to 3,017 days) in those with TVD. After successfully matching 83 patients, 29 of 83 (34.9%) patients in the non-TVD group had mild TR versus 28 of 83 (33.7%) patients in the TVD group (p = 0.87). 2 patients in the non-TVD group had moderate TR versus 1 patient in the TVD group at long-term follow-up. One patient in each group suffered transient atrioventricular block, but neither required pacemaker insertion. CONCLUSIONS: TVD did not compromise long-term valve durability and did not impose increased morbidity. Patients who underwent TVD had a similar prevalence of mild TR to patients without TVD. Moderate TR was exceptionally rare in both groups. When exposure is difficult, TVD is a safe and effective technical adjunct.
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