Tricuspid regurgitation (TR) is common in end stage heart failure patients receiving left ventricular assist devices (LVADs), but the value of intervention is uncertain. This study examined the impact of tricuspid valve procedures (TVP) at time of LVAD implantation on clinical outcomes and quality of life metrics. We included patients in the INTERMACS database with TR who received continuous-flow LVADs from the 2008 to 2017. TR was stratified by severity. Patients receiving concomitant TVP were compared to those without intervention in a stratified analysis. Survival analyses and Andersen-Gill hazard models were used to examine associations with clinical outcomes. Our analysis included 8263 (53.1%) mild, 4252 (33.3%) moderate, and 2100 (13.5%) severe TR cases. TVP rate increased with severity: 13.0% of mild cases underwent TVP versus 55.2% of severe cases. TVP was not associated with survival difference for mild (median 57.8 months for TVP vs. 55.6 months for non-TVP, P=0.69, HR 1.10 [95%: 0.87-1.50]), moderate (47.5 vs. 51.1 months, P=0.23, HR 1.20 [0.99-1.50]), or severe TR (43.3 vs 46.3 months, P=0.09, HR 1.30 [0.99-1.60]). TVP was associated with increased risk of bleeding, arrhythmia, stroke, renal failure, and respiratory failure (P<0.01 for each) and not with Kansas City Cardiomyopathy Questionnaire (KCCQ) differences at 12- or 24-months follow-up. TVP at time of LVAD implantation was not associated with differences in survival or KCCQ scores. However, there were associations with increased risk of adverse events. Further studies are needed to understand appropriateness criteria for TVP with LVAD implantation.
Read full abstract