An asymptomatic 17-year-old male, with a history of surgical closure of PM-VSD at age 12, presents for routine follow-up. Physical examination was notable for an ejection systolic murmur (grade II/VI) at the left sternal border. ECG was normal. TTE revealed a RV muscular septation without significant obstruction (peak gradient of < 20 mm Hg). No residual VSD shunt was appreciated. CMR showed prominent RVOT muscle bundles causing no flow turbulence ( and , ). No action was taken due to the benign nature of DCRV in this patient.
An asymptomatic 33-year-old female with a known small PM-VSD was followed up in our clinic. Past history was remarkable for a surgical closure of patent ductus arteriosus early in life. Physical examination was notable for a pansystolic murmur (grade II/VI) at the left sternal border. ECG was normal. TTE revealed a small (-3-4 mm) PM-VSD with left to right shunt and RV muscular septation causing no significant obstruction. CMR showed prominent RVOT muscle bundles causing no significant flow turbulence ( and , ). No action was taken due to the benign nature of DCRV in this patient.