Abbreviations, acronyms & symbols
BMI	= Body mass index
CPB	= Cardiopulmonary bypass
EF	= Ejection fraction
GFR	= Glomerular filtration rate
MV	= Mitral valve
NYHA	= New York Heart Association
PG	= Peak gradient
SPSS	= Statistical Package for the Social Sciences
TTE	= Transthoracic echocardiography