Objective To share the clinical experience of tetralogy of stage Ⅰ Fallot children with little left ventricle.Methods Thirty-eight cases with stage Ⅰ Fallot with little left ventricle from March 2008 to Jun 2012 were selected as our subjects.Of them,18 were boys and 20 were girls.The age of the cases ranged from 5 to 18 months and average was (9.37 ±2.45) months.The weight ranged from 6.6 to 10.4 kg,and average was (8.33 ± 1.72) kg.All cases showed cyanosis of oral lip.They all were performed tetralogy by the breast bone median incision and then expanding interventricular septal defect.Results All cases survived.Following-up 6 -18 months showed that all cases got good recovery.Left arterial diameter at before the operation,discharge,3 months after surgery were (14.07 ± 0.79) mm,(14.37 ± 0.68) mm,(16.01 ± 0.72) mm respectively and transverse diameter of right atrium were (18.23 ± 1.07) mm,(18.74 ± 0.96) mm,(19.28 ± 0.71) mm respectively.The differences were significant (F =99.474,69.760,P =0.000).Main pulmonary artery diameter at before the operation,discharge,3 months after surgery were (7.98 ±0.92) mm,(8.16 ±0.54) mm and (9.92 ± 0.81) mm,and left ventricular end diastolic diameter were (19.27 ± 1.15) mm,(21.06 ± 1.75) mm,(23.41 ± 1.18) mm.Meanwhile,left ventricular fractional shortening rate were (35.57 ± 1.45)％,(32.61 ± 2.15) ％,(34.29 ± 2.12) ％,and main pulmonary artery systolic flow velocity were (450 ± 98.36) cm/s,(150.0 ± 9.22) cm/s,(148.0 ± 7.92) cm/s.All differences were statistically significant (F =108.620,96.410,99.485,102.914;P =0.000).Conclusion Tetralogy on Fallot children with little left ventricle can lead to cardiac remodeling,which reduce the load of right ventricle and improve left ventricular function.

Objective To investigate the characteristics,occurrence times and management of cardiac erosion after transcatheter closure of ASD,and to discuss the mechanism and predictive factor of erosion.Methods We analyzed all the cases who received transcatheter ASD closure from September 1997 to September 2016 in our hospital retrospectively.Results 9 cases (9/6903,0.13％) were reported to have cardiac erosion events after device closure ASD of including 2 cases of acute cardiac tamponade needed pericardiocentesis,2 cases of aorta-to right-atrial fistula needed transcatheter closure or operative repair and 5 cases of perforation of the anterior leaflet of mitral valve.1 case with MV anterior leaflet perforation presented with hemolysis and required surgical repair.Cardiac erosion events were found at average 52.9±68.3 days (1-180days) after the ASD closure.Conclusions Cardiac erosion is a rare but serious complication of device closure for ASD.Erosion events are mostly attributed to device over-sizing or deficient retro-aortic rims.It is important for a strict follow-up,early deduction and timely disposition when an erosion event is identified.occurring.