“…However, similar phenomenon has been observed in several conditions, including aortic valve disease, rheumatic heart disease, hypertrophic cardiomyopathy, hypertension, ventricular pre-excitation, coronary artery disease, chronic renal failure and right ventricular pacing, and even in healthy individuals. [1][2][3][4][5] Furthermore, IVRF can be apically directed, basally directed or bidirectional, occurring during the isovolumic relaxation period. 2 Contributors HS wrote the case description.…”