Rheumatic mitral stenosis associated with hypertrophic cardiomyopathy and anomalous muscle bundle in the right ventricle

Mitral stenosis and hypertrophic obstructive cardiomyopathy: An unusual combination

“…Patients in this study were older in general than myectomy patients at our institution, 20 and than patients in previous case reports. [3][4][5][6][7][8] In view of the more-advanced patient age in our study, and the relatively low prevalence of rheumatic valvular disease in North America, degenerative, age-related calcific MV disease is the likely cause of mitral stenosis in many of our patients. Even though the patients who underwent MV replacement and septal myectomy in our study were relatively older, the operative results were satisfactory, and the postoperative LVOT pressure gradients were relieved successfully after the operation in all patients.…”

“…1,2 In patients who have hypertrophic cardiomyopathy and MV stenosis, the valve leaflets usually have limited mobility, which might be expected to minimize systolic anterior motion and dynamic LVOT obstruction. Some studies have reported isolated cases of the combination of MV stenosis and hypertrophic obstructive cardiomyopathy, [3][4][5][6][7][8] but none have identified or proposed mechanisms of LVOT obstruction.…”