Abstract： Objective To summarize our surgical experience of tetralogy of Fallot（TOF） with anomalous coronary artery（ACA）， explore diagnostic method of ACA， and evaluate surgical strategy choices and clinical outcomes of right ventricular outflow tract（RVOT） reconstruction. Methods From January 2004 to January 2010， 29 patients with TOF and ACA underwent total correction in Wuhan Asia Heart Hospital. There were 18 male patients and 11 female patients with their median age of 7 years （5 months to 33 years）and median body weight of 18 （5 to 51） kg at operation. Their preoperative arterial oxygen saturation was 65%-91%. One patient underwent RVOT enlargement and repair of ventricular septal defect via right atrial approach. Three patients underwent RVOT enlargement， repair of ventricular septal defect and main pulmonary artery enlargement using autologous pericardium patch via right atrial approach. Three patients received pulmonary artery translocation （REV） technique. Five patients received double outlet technique. Eleven patients underwent RVOT enlargement via incisions above， below or beside coronary arteries （single patch or two patch technique）. Six patients underwent RVOT reconstruction using trans-annular patch after coronary artery bypass grafting. Results The median cardiopulmonary bypass time was 78 （65-102） min， median aortic crossclamp time was 50（40-82） min， and median operation time was 150 （126-178） min. There was no early death or severe coronary artery injury. Two patients underwent reexploration because of postoperative bleeding. Two patients had low cardiac output and were both cured with inotropic support. The median follow-up period was 51 （21-83）months and there was no late death during follow-up. All the patients were in New York Heart Association （NYHA） classⅠduring follow-up， their left ventricular ejection fraction was normal， there was no sign of myocardial ischemia in electrocardiogram， and their arterial oxygen saturation was 96%-99%.Mean early RVOT gradient （△P） was 19 （8-38） mm Hg， and the RVOT gradient （△P） did not increase during follow-up. Conclusion Preoperative diagnosis of ACA in TOF patients can be made by 64-slice multislice compute tomography （64-MSCT）. Proper surgical strategy for RVOT reconstruction should be chosen according to the distribution of coronary arteries to achieve satisfactory surgical outcomes.
Abstract： With the evolvement of surgical, anesthetic, perfusion, and perioperative management techniques, the mortality of routine corrective operation of tetralogy of Fallot（TOF） has been less than 2%-3%, while more and more attention has been paid to patient long-term prognosis. Chronic postoperative pulmonary regurgitation （PR） is one of the important prognostic factors which are puzzling cardiac surgeons. Subsequent right ventricle dilation, right ventricular dysfunction and fatal arrhythmias as chronic PR complications have important impact on the postoperative quality of life and long-term survival. Current treatment choice for PR includes pulmonary valve replacement（PVR）, intervention, and hybrid procedures. PVR is the main surgical method for chronic PR which can significantly improve patient cardiac function and clinical symptoms，and prolong long-term survival. Intervention does not require thoracotomy once again, and can thus reduce surgical trauma and risks. Intervention is also helpful to improve right ventricular pressure conditions and PR degree. This article focuses on the pathophysiological changes of chronic PR after surgical repair of TOF, surgical indications for PVR, clinical treatment progress and early prevention of PR.
Objective To evaluate early results of valved bovine jugular vein patch for reconstruction of the right ventricular outflow tract （RVOT）.?Methods From May 2009 to March 2010， a total of 60 patients with complex congenital heart diseases underwent reconstruction of RVOT with valved bovine jugular vein patch in Wuhan Asia Heart Hospital. There were 42 males and 18 females with their mean age of 6.2±8.9 years （ranging from 5 months to 33 years） and mean body weight of 27.5±24.0 kg， and 34 patients were less than 1 year. Preoperative clinical diagnosis included tetralogy of Fallot （n=38） and double outlet of right ventricle with pulmonary stenosis （n=22）. All the patients underwent one-stage surgical repair. Before operation， 4 patients underwent catheter intervention for their major aortopulmonary collaterals. The diameters of pulmonary arterial ring of all the patients were 2 standard deviation less than normal range， and trans-annular patch was chosen for RVOT reconstruction. All the patients were postoperatively followed up for 18 to 26 months （mean 21.2±4.6 months）.?Results There was no in-hospital death. And no second surgical intervention was needed for conspicuous RVOT stenosis or pulmonary regurgitation. Three patients needed reintubation for lung edema after extubation as a result of major aortopulmonary collaterals. Four patients underwent reexploration for postoperative bleeding. And all the other patients were discharged uneventfully. Mean cardiopulmonary bypass time was 84.0±22.0 min， and mean aortic cross-clamping time was 42.0±12.0 min. Mean RVOT gradient right after surgery was 18.0±4.5 mm Hg， which was not statistically different from mean RVOT gradient of 19.2±5.4 mm Hg measured by transthoracic echocardiography at their last postoperative follow-up（P＞0.05）. The degree of pulmonary regurgitation right after surgery was trivial in 32 patients（1＋）， mild in 28 patients（2＋）， which were not statistically different from the degree of pulmonary regurgitation at their last postoperative follow-up: trivial in 28 patients （1＋）， mild in 27 patients（2＋）， and moderate in 5 patients（3＋）. Calcification was not observed on the valved bovine jugular vein patch and valve cusp， and the valve cusp motioned well. No thrombosis or endocarditis was observed on the valved bovine jugular vein.?Conclusions For patients with tetralogy of Fallot or double outlet of right ventricle （DORV） and pulmonary stenosis， valved bovine jugular vein patch is a good choice for trans-annular reconstruction of RVOT. There is no severe postoperative complication related to bovine jugular vein， the RVOT pressure gradient does not increase significantly， and anti-regurgitation result is satisfactory in short-term follow-up. Further follow-up is required to evaluate its long-term outcome.
Objective To summarize the immediate and intermediate outcomes of surgical correction on patients with tetralogy of Fallot and absent pulmonary valve (TOF/PVAB). Methods From January 1996 to August 2009, 14 patients，including 5 males and 9 females, aged 3.4±3.4 years (0.2-11.0 years) with an average weight of 12.0±6.3 kg (4-26 kg), underwent complete surgical correction in Beijing Fu Wai Cardiovascular Hospital. The right ventricular outflow tract was reconstructed with valved conduit in 4 patients, and monocusp with transannular patch was used in 10 patients. Six patients underwent pulmonary artery wall reduction, and 2 patients underwent both pulmonary artery plication and wall reduction. Results There were 2 (14.3%) perioperative deaths. Both were low bodyweight infants. One died of low cardiac output and respiratory failure, and the other died of central nervous system complications. Ten patients were followed up for an average time of 8.3±4.3 years (0.6-13.0 years). All patients followed up survived. The echocardiogram found pulmonary valvular dysfunction in 4 patients. The patients’ cardiac function were classified as New York Heart Association(NYHA) Ⅰ to Ⅱ. There was no late death or reoperation. Conclusion The immediate and intermediate outcomes of surgical correction of TOF/PVAB are good, but the function of pulmonary valves and conduit should be followed-up closely.