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.
A 34-year-old male was evaluated for palpitation. Past medical history is significant for small PM-VSD years earlier with no intervention required. Physical examination was notable for an ejection systolic murmur (grade II/VI) over the left sternal border. ECG was unremarkable. TTE showed a small (4 mm) PM-VSD with left to right shunt and RV muscular septation causing no significant obstruction. TEE was confirmatory (, ). CMR showed prominent RVOT muscle bundles causing no significant flow turbulence (, ). No action was taken due to the benign nature of DCRV in this patient.