In‐hospital outcomes of transcatheter mitral valve repair in patients with and without end stage renal disease: A national propensity match study

Objectives To study trends of utilization, outcomes, and cost of care in patients undergoing undergoing transcatheter mitral valve repair (TMVr) with end‐stage renal disease (ESRD). Background Renal disease has been known to be a predictor of poor outcome in patients with mitral valve disease. Outcome data for patients with ESRD undergoing TMVr remains limited. Therefore, our study aims to investigate trends of utilization, outcomes, and cost of care among patients with ESRD undergoing TMVr. Methods We analyzed NIS data from January 2010 to December 2017 using the ICD‐9‐CM codes ICD‐10‐CM to identify patients who underwent TMVr. Baseline characteristics were compared using a Pearson χ2 test for categorical variables and independent samples t‐test for continuous variables. Propensity matched analysis was done for adjusted analysis to compare outcomes between TMVr with and without ESRD. Markov chain Monte Carlo was used to account for missing values. Results A total of 15,260 patients (weighted sample) undergoing TMVr were identified between 2010 and 2017. Of these, 638 patients had ESRD compared to 14,631 patients who did not have ESRD. Adjusted in‐hospital mortality was lower in non‐ESRD group (3.9 vs.