Bloodless surgery is a comprehensive and systematic perioperative treatment approach in order to avoid allogeneic transfusion for surgery，improve patient prognosis，and relieve blood shortage. Bloodless heart surgery indicates some perioperative strategies to avoid allogeneic transfusion and improve clinical outcomes，which involves participation of cardiac surgeons and other professionals during cardiac surgery. For years，many cardiac surgeons have utilized several blood management and conservation techniques during open heart surgery to avoid allogeneic transfusion. Research results from major medical centers indicate that bloodless heart surgery can shorten postoperative recovery period and improve patientprognosis. In this review，we describe basic theory and systematic methods of bloodless surgery，and summarize applicationprogress of bloodless heart surgery and current status in China.
Abstract: The complete transposition of the great arteries (TGA) is one of the commonest congenital cardiac anomalies in cyanosis. In untreated patients, death occurs early in infancy. Nowadays arterial switch operation (ASO) has been widely proposed to treat TGA without pulmonary valve stenosis. Meanwhile, surgical risks and mortality will be increased if TGA is accompanied by coronary arterial anomalies. So proper surgical management of abnormal coronary artery has a significant influence on the outcome of ASO. The classification, operation methods and surgical results were reviewed in this article.
Surgical treatment of complete transposition of great arteries with ventricular septal defect and pulmonary stenosis (TGA/VSD,PS) consists of Rastelli procedure, Lecompte procedure, Nikaidoh procedure, Yamagishi procedure and Ross-Konno switch procedure. Rastelli procedure and Lecompte procedure cause less myocardial lesion but more late complications. Nikaidoh procedure and Yamagishi procedure achieve better anatomical repair but involve more myocardial lesion. Ross-Konno switch procedure has a narrow surgical indication. So for patients with TGA/VSD,PS, different surgical methods should be used according to surgical indications and individual conditions. In this paper, the advantages and disadvantages, indication, contraindication, outcome and prospect of them are reviewed.
Corresponding author: XU Zhi-wei, E-mail: zwxumd@online.sh.cn Abstract: Objective To compare the two different ways of right ventricle pulmonary artery (RV-PA) reconstruction at repair of persistent truncus arteriosus(PTA), the direct RV-PA anastomosis and extra conduit connection, in order to find the better way. Methods From Feb. 2000 to Sept. 2006, 23 patients had undergone the repairs of truncus arteriosus in our hospital, age at operation from 1.5 to 63.3 months. Patients were divided into 2 groups according to the way of RV PA reconstruction. Group Ⅰ : 18 of them, using direct RV-PA anastomosis, group Ⅱ : 5 of them, using valved homograft or Gore-Tex conduit. 3 patients were associated with interrupted aortic arch (IAA). Kaplan-Meier was used to calculate postoperative mortality, survival time and re-operation situation. Paired t-test and group t-test were used to evaluate late pulmonary growth and cardiac function.Results There were 2 early hospital death, there were 17 patients in follow-up for 2.14 ± 1.97y (32.00d-6.95y). No later death during follow-up. Total survival rateo was 91.30%(21/23), 95% CI of survival time was 5.55-7.15y. Survival ratio of group Ⅰ was 94.40%, and that of group Ⅱ was 80%. One patient had undergone re operation for right ventricular outflow tract obstruction (RVOTO). The difference between the diameter of postoperative RV-PA anastomosis was statistically significant. The early diameter of group Ⅰ was 1.01 ± 0.26cm, later was 1.32 ± 0.45cm(P=0.019). The velocity of flow at the position of anastomosis and the peristome of right pulmonary artery (RPA)/left pulmonary artery (LPA) was acceptable. Compared the postoperative cardiac function, late left ventricle ejection fraction (LVEF) really improved with a significant difference ［ group Ⅰ , early was 62.82%, late was 69.87%(P=0.026); group Ⅱ , early was 58.17%, late was 64.00%(P=0.029) ］ . No re-operation for truncal valve regurgitation was needed. Conclusions The postoperative survival and follow-up results are satisfactory. A direct anastomosis of RV-PA continuity has the potential for right ventricle outflow tract (RVOT) growth and associated with low rate of pulmonary artery and bifurcation obstruction. The heart function is really improved during follow-up. IAA and truncal valve regurgitation are two major risk factors of associated with hospital death.
Objective To summarize the early experience of modified Nuss procedure with thoracoscope for repairing pectus excavatum in children. Methods Fiftythree pediatric pectus excavatum were treated by modified Nuss procedure with thoracoscope from June 2004 to July 2006, theage ranged from 2.4 to 16.0 years, the average age was 8.1 years. Thirtysix patients were symmetric pectus excavatum and 17 patients were asymmetric pectus excavatum. Results The operation in all patients were successful, the average blood loss was less than 10ml. Pericardium perforation occurred in 2 earlier patients during the operation, pneumothorax occurred in 6 patients postoperatively,pleural effusion occurred in 3 patients, and all resolved by corresponding treatments. The average hospital length of stay was 5.5 days. All patients had a satisfied deformity correction and no needs of transfusion. The depression was thoroughly corrected in 48 patients, residual depression was less than 20% of preoperative degrees in 5 patients. Therapeutic results evaluation showed excellent in 46 patients and good in 7 patients. All patients were followed up in 1-25 months without any complaints, the activity ability was same as normal children; there were no bar displacement and injury event occurred. The bar had been removed in 1 patient 24 months after surgery who still kept in excellent results. Conclusion Modified Nuss procedure is easy to be performed with minimal invasion and good shortterm results. Thoracoscopic visualization facilitates the safety of this technique. It is recommendable to be tried and extended applied.
Objective To analyze the outcome of arterial switch operation （ASO） for surgical repair of complete transposition of the great arteries （TGA）, and to investigate the risk factors influencing the mortality of ASO. Methods The clinical data of patients suffered from TGA and treated with ASO from the January 2003 to December 2004, and the clinical records in hospital including eehoeardiogram and operation record were collected. The clinical data were analyzed by chi-squared test and logistic muhivariable regression analysis, including the age undergone operation, body weight, diagnosis, anatomic type of coronary artery, cardiopulmonary bypass time, aortic crossclamping time, circulation arrest time, assisted respiration time after operation, the delayed closure of sternum and so on. The risk factors influencing the early mortality of the ASO were analyzed. Results Sixty seven patients were operated with ASO, five patients died during the peri-operative period. The outcome of univariate analysis indicated that risk factors influencing the mortality of ASO included： age（P=0. 004）, body weight （P=0. 042）, anatomic type of coronary artery （P= 0. 006） and extracorporeal circulation time （P= 0. 048）, the length of the CICU stay（P= 0. 004） and the hospital stay（P=0. 007） after operation in the TGA/VSD patients were longer than those in TGA/ IVS patients. The logistic muhivariable regression analysis indicated that the age at operation （P= 0. 012）, coronary arteries anomaly （P = 0.001 ）and the longer cardiopulmonary bypass time （P = 0. 002） were correlated with the increase of death rate. Conclusion It could be good results for TGA patients who was repaired with ASO. The age at operation, the coronary arteries anomaly and the longer cardiopulmonary bypass time are the risk factors influencing the mortality.