An autopsy study of rheumatic heart disease. Part II. Associated findings.

Histo-morphological changes of the coronary vessels in cases of rheumatic heart disease (RHD) have been studied in 60 cases. Involvement of intramyocardial branches of coronary vessels in the form of active rheumatic vasculitis or inactive lesions characterized by medial hypertrophy and replacement fibrosis was seen in 15 of 60 cases. These lesions may affect myocardial function. Atherosclerosis of the pulmonary trunk and its branches was frequently seen in these hearts, indicating that this may be an important index of pulmonary hypertension. An unusual association of bicuspid aortic stenosis and RHD was seen in one case. Another case showed acute myocardial infarction due to coronary embolism from bacterial vegetation of bacterial endocarditis.

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