Lethality predictors in adults undergoing Ross procedure: analysis of 760 operations

Aim. This one-center cohort study focused on the identification of predictors of in-patient (up to 30 days) and late lethality in patients after Ross procedure over a period from 2002 to 2015. Methods. 760 patients aged 16-73 were evaluated. The analysis included methods of descriptive statistics and Kaplan-Meyer survival test. To identify the factors related to lethality outcomes, use was made of a log rank test, a chi-square test and Cox regression analysis. Results. In-patient lethality was from 0 to 5 deaths a year (95% confidence interval, 0 to 3), on average 5.6±1.6% (95% confidence interval; 4 to 7) over a period from 2002 to 2015. The cohort mean values of post-operative survival over 5 and 10 years were 98% and 98% respectively (late survival was 2%). The following statistically significant predictors of in-patient lethality (р