DefinitionDefinitionIn order to determine the best course of therapy, physicians often assess the stage of heart failure according to the New York Heart Association (NYHA) functional classification sy SN York - Springer New York 被引量: 58发表: 2010年 Cardiac resynchronization therapy in patients wi...
In particular, our analyses highlighted two distinctively different subgroups of patients within the second stage of the NYHA classification, i.e., NYHA class IIA and IIB. NYHA class I included patients who were totally asymptomatic even during strenuous and competitive physical activities; they ...