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  • Title: Durability and clinical impact of tricuspid valve procedures in patients receiving a continuous-flow left ventricular assist device.
    Author: Han J, Takeda K, Takayama H, Kurlansky PA, Mauro CM, Colombo PC, Yuzefpolskaya M, Fukuhara S, Truby LK, Topkara VK, Garan AR, Mancini DM, Naka Y.
    Journal: J Thorac Cardiovasc Surg; 2016 Feb; 151(2):520-7.e1. PubMed ID: 26806510.
    Abstract:
    OBJECTIVE: Patients evaluated for a continuous-flow left ventricular assist device frequently present with severe right ventricular dysfunction with tricuspid regurgitation. Long-term outcomes of concurrent tricuspid valve procedures in continuous-flow left ventricular assist device implantation are unclear. METHODS: From May 2004 to December 2013, 336 patients received continuous-flow left ventricular assist devices. Among these, 8 patients with prior tricuspid valve procedures were excluded. At continuous-flow left ventricular assist device implantation, 76 patients underwent tricuspid valve procedures (group A), including 68 repairs and 8 replacements. The remaining 252 patients did not receive concurrent tricuspid valve procedures (group B). RESULTS: Preoperatively, group A had higher central venous pressure/pulmonary capillary wedge pressure (P = .032), total bilirubin (P = .009), and percentage of moderate or greater tricuspid regurgitation (98.7% vs 18.8%; P < .001). In group A, cardiopulmonary bypass time (136 ± 52.0 minutes vs 83.9 ± 38.8 minutes; P < .001), intraoperative platelet use (13.6 ± 6.70 units vs 11.7 ± 5.92 units; P = .042), and bleeding requiring reoperation (27.5% vs 16.7%; P = .046) were significantly increased. In-hospital mortality was similar (10.5% vs 6.4%; P = .22). On-device 2-year survival was 73.9% in group A and 74.2% in group B (P = .24). At 2 years, mean cumulative readmissions for right heart failure was 0.21 in group A and 0.27 in group B (P = .95). A generalized linear mixed-effects model showed that tricuspid valve procedures are protective for developing future significant tricuspid regurgitation (odds ratio, 0.38; 95% confidence interval, 0.19-0.76; P = .006). CONCLUSIONS: Concomitant tricuspid valve procedures at continuous-flow left ventricular assist device implantation can be performed safely and are protective against worsening tricuspid regurgitation during the first 2 years of support.
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