TEMPORAL CHANGES IN VARIOUS ECHOCARDIOGRAPHIC PARAMETERS FOLLOWING SURGICAL MYECTOMY IN SEVERELY SYMPTOMATIC OBSTRUCTIVE HYPERTROPHIC CARDIOMYOPATHY: RESULTS FROM THE PROSPECTIVE SPIRIT-HCM STUDY. - Desai, Milind Y.; Szpakowski, Natalie; Tower-Rader, Albree; Mentias, Amgad G.; Bittel, Barbara A.; Fava, Agostina M.; Thamilarasan, Maran; Xu, Bo; Smedira, Nicholas G. (Journal of the American College of Cardiology (JACC), 2023)