In 5 cases with double chambe(?)ed right vent(?)icule divided by a thick anomalous muscular band,a high pressure chamber located below the t(?)iscupid valve,and a low pressure one located between the anomalous muscular band and the pulmanony valve.Co-existing ASD was found in 1 case and VSD in 3 cases.All of them were successfully ope(?)eted on for ASD and VSD with extracorporeal circulation.The hype(?)t(?)ophic muscular bands were adequately resected to relieve the obstruction of outflow tract of right ventricule in all cases.In 3 cases, the Outflow tract of the right ventricule was not wide enough,and autologous pericardial patch was used to repair the outflow tract.The clinical features,diagnostic critria and the operative techniques were also discussed.
Journal of Clinical Cardiology