Pre-implant patient characteristics were controlled through a propensity-score matching analysis study and factors studied included age, sex, race, BMI, implant brand, implant year, diagnoses, inotrope status, valvular abnormalities of mitral and tricuspid regurgitation, ECMO usage within 48 h of implant, and various other laboratory values like bilirubin and albumin. This evidence concerns the gene ALB and tricuspid valve insufficiency.