<prompt> Commonest complication of infective endocardities is -ThromboembolismMycotic aneurysmFibrinous pericarditisMycardial abscesses  <response>: Ans. is d i.e., Myocardial abscess The most common complication of infective endocarditis is ring abscess in the Myocardium, which can lead to a number of complications, such as VSD, pericarditis, hea block, or a high degree bundle - branch block. 