1.The result of endoscopic vein harvesting in patients undergoing coronary artery bypass grafting
Chinese Journal of Thoracic and Cardiovascular Surgery 2016;32(8):467-469
Objective To evaluate clinical results of endoscopic vein harvesting(EVH) in patients who underwent coronary artery bypass grafting(CABG).Methods From July 2013 to October 2014,500 patients who underwent isolate CABG in our institution were divided into two groups:EVH group (n =250) and open vein harvesting(OVH) group(n =250).The surgical result and perioperative complications were compared between the two groups.Results The procedures were completed successfully in all the patients in both groups.There was no significant difference existed in the length of the harvested vein and vein injury between the two groups(P > 0.05).Similar results were obtained in the in-hospital mortality.Compared to group OVH,group EVH showed significantly shorter harvesting time,smaller incision,and lower rates of perioperative leg complications (P < 0.01).Group EVH had a less bed staying time after operation and a shorter post-operation hospital stay (P < 0.05).EVH group achieved an improved patient satisfaction and postoperative pain when compared with OVH in CABG(P <0.05).Conclusion EVH can provide adequate vein graft for CABG,and also significantly reduce wound related complications when compared with OVH.EVH is recommended for vein harvesting to improve patient satisfaction.
2.The related factors affecting valvular replacement through ministernotomy
Shengshou HU ; Zhitao QI ; Yunhu SONG
Chinese Journal of Minimally Invasive Surgery 2001;0(02):-
Objective To determine the factors affecting valve replacement through mini - sternotomy. Methods 35 patients underwent mitral valvular replacement (MVR, 23 cases) or bivalvular replacement (BVR, 12 cases) through minimal sternotomy. 19 cases were male and l6 cases were female. The age ranged from 21 to 62 years with an average(44 ? 9) years. The factors affecting the aorta clamped time (ACT) and the cardiopulmonary by- pass time (CPBT) ware analyzed. Results When the left ventricular diastolic diameter was more than 60mm, ACT and CPBT were longer in MVR and were shorter in BVR. ACT and CPBT were almost significantly longer in MVR and AVR when superior margin of manubrium was lower than the fifth thoracic vertebra. Height of aortic node, cardiotho- racic ratio, diameter of left artia and aortic root were not related with ACT and CPBT. Conclusion Larger left ventricular and lower manubrium may be the related factors that affecting the operation of valvular replacement.
3.Experimental and Clinical Research for a Collagen-Coated Dacron Graft
Yunhu SONG ; Xiaodong ZHU ; Bingci LIU
Chinese Journal of Thoracic and Cardiovascular Surgery 1995;0(05):-
No interstitial bleeding occurred in either type of grafts. By gross observation and under light microscopy, a smooth neointima was noticed on the surface of collagen coated grafts 30 and 90 days after implantation. In a series of 4 patients with Marfan's syndrome undergoing replacement of the aortic root, hemorrhage through the interstices of the graft was virtually eliminated. There was no complication in any patient after a follow up of 3 months. This study reveals that collagen-coated dacron grafts were totally impervious to blood during and after implantation. The collagen coating can promoting cell growth and graft healing and does not interfere with the physical properties of the dacron grafts. As a prosthesis of aorta replacement , it may be applied clinically with safety. If it is used as small diameter vascular prosthesis,the long-term patency may be improved.
4.Strategy of expanding marginal donor heart and elinical result
Keming YANG ; Wei WANG ; Yunhu SONG ; Xin YUAN
Chinese Journal of Organ Transplantation 2010;31(3):170-172
Objective To study the strategy of expanding standard donor heart application and to analyze the clinical effect on applying expanding standard donor heart in heart transplantation.Methods 146 patients received heart transplantation in Fuwai Hospital Bering from June 2004 to February 2009.Expanding standard donor heart was defined as prolonged ischemic time over 6 h,advanced age up to 40,and blood type ABO mismathched.Blood type examination and PRA test were done before operation.The donor heart was preserved by sequential perfusion with cold St.Thomas and HTK solution.The patients were divided into groups according to different oversize body weight,ischemic time,and donor age Results There were 11 deaths after operation.Ischernic time of donor heart was 262.1±120.8 min,and that of 21 donors was over 360 min(the longest one was 605 min).There was no significant diffeFence in recipient properties before transplantation.and also there was no significant difference in mortality,heart function,heart rejection,and main morbidity after transplantation and during follow-up.Conclusion These data support continued aggressive utilization of expanding standard donor hearts in heart transplantation.Our experience demonstrates thatproperly expanding standard cardiac allografts application has no effects on the short- and long-term clinical outcome following heart transplantation.
5.Urgent reoperation early after coronary artery bypass graft
Huaijun ZHANG ; Yunhu SONG ; Jianping XU ; Wei FENG ; Shengshou HU
Chinese Journal of Thoracic and Cardiovascular Surgery 2011;27(3):168-169,161
Objective To explore the cause of acute myocardial ischemia early after coronary artery bapass graft (CABG) and surgical management on it. Methods From 2001 to 2009, 28 patients underwent urgent reoperation early after CABG due to acute myocardial ischemia. The incidence of reoperation is about 0.02%. The cause of reoperation inclouded early graft occlusion (10 cases) ,IMA damage or injury during harvesting(9 cases), inexactitude distal anastomosis(2 cases)and radial artery spasm(4 cases). The mean interval time between two operations was 8 hours. Reoperation was done under offpump bypass in 2 patients and on-bypass used in other patients. Unsatisfactoey graft were substituted with new graft material and thrombotic was removed. If LIMA was the reson for myocardial ischemia, an additional vein graft was inserted. The spasm radial artery were substituted with new vein graft. Completely revascularization was used in re-do CABG. Results Two patients died during reoperation. 8 patients was died between 1 day and 14 days after reoperation. IABP was used in 16 patients,which 2 patients received ECMO suppord and 2 patient received LVAD suppord at mean time. Conclusion There have very high mortality in acute myocardial ischemia early after CABG. The early diagnosis and correct surgical management can improve the rates of survival. The active prevent should be emphasized during the first CABG.
6.Analysis of risk factors of death in patients with redo-CABG
Benqing ZHANG ; Hansong SUN ; Shengshou HU ; Jianping XU ; Wei WANG ; Yunhu SONG ; Feng Lü ; Hengchao WU
Chinese Journal of Thoracic and Cardiovascular Surgery 2012;28(1):32-34
ObjectiveTo assess the prognostic efficiency of three different risk socres in patients underwent redo-coronary artery bypass grafting (redo-CABG).MethodsFrom January 1997 to July 2011,57 patients underwent redo-CABG in Fu Wai Hospital.All patients were prospectively scored for operative mortality using EuroScore,STS Score and Sinoscore.The overall expected mortality were compared with the observed mortality.Discrimination was evaluated by receiver operating characteristic (ROC) cures and area under a ROC curve (AUC).ResultsFour patients died in the whole group,the observed mortality was 7%.The overall predicted mortality of EuroScore,STS Score and SinoScore were 5.6%,2.2% and 1.5%,all lower than the observed mortality.The AUC of the three kinds of score were respectively 0.495,0.557 and 0.535,which indicated that the discrimination of the three kinds of score are poor.ConclusionThe predictive value of EuroScore,STS Score and SinoScore for early postoperative mortality in patients undergoing redo-CABG is poor.Surgical technology is an important predictor for early postoperative mortality.
7.Relationship between preoperative N-terminal-pro-brain natriuretic levels and early survival of HT recipients
Yan HUANG ; Jie HUANG ; Shengshou HU ; Yunhu SONG ; Wei WANG ; Zhongkai LIAO ; Jun ZHU
Chinese Journal of Organ Transplantation 2013;(3):135-138
Objective To assess the correlation between pre-operative N-terminal-pro-brain natriuretic levels and early survival rate among heart transplantion (HT) recipients in a single Chinese center.Methods According to the pre-operative NT-proBNP level of 284 HT recipients,the recipients were divided into two distinctive groups,≤5000 nmol/L group (237 cases) and >5000 nmol/L group (47 cases).The baseline characteristics and mortality for recipients with different primary cardiac diseases and on extracorporeal membrane oxygenation (ECMO) support were compared.Kaplan Meier method was used to calculate the 1-year survival rate of the two groups.Results The pre-operative NT-proBNP >5000 nmol/L group had an average pulmonary capillary wedge pressure of (25.1 ± 7.4)mmHg,noticeably higher than in ≤5000 nmol/L group [(21.4 ± 9.2) mmHg,P<0.05].At the same time,the cardiac index (CI) in >5000 nmol/L group was (1.8 ± 0.5) L·min-1·m-2,significantly lower than in ≤5000 nmol/L group [(2.1 ± 0.6) L·min-1 ·m-2,P<0.05].14.9%(7/47) of recipients in >5000 nmol/L group used ECMO support,and the corresponding ECMO-related morbidity was 71.4% (5/7) and 1-year survival rate was 91.3%.6.8% (16/237) of recipients in ≤ 5000 nmol/L group used ECMO support and the corresponding ECMO-related morbidity was 12.5% (2/16) and 1-year overall survival rate was 96.9%.There was statistically significant difference in the ECMO usage,ECMO-related mortality rate and 1-year survival rate between the two groups (P<0.05).Conclusion Recipients with pre-operative NT-proBNP >5000nmol/L have higher peri-operative ECMO-related morbidity and 1-year death rate.So determination of pre-operative NT-proBNP level may be beneficial to the timing of cardiac transplantation.
8.Basiliximab combined with triad resisting immune rejection scheme prevents the incidence of immune rejection after heart transplantation
Zhe ZHENG ; Jie HUANG ; Limeng YANG ; Shengshou HU ; Yunhu SONG ; Wei WANG ; Zhongkai LIAO
Chinese Journal of Organ Transplantation 2012;33(5):272-274
ObjectiveTo evaluate the clinical effect and reliability of basiliximab as immune inducer combined with classic triad resisting immune rejection scheme in preventing immune rejection after heart transplant.MethodsWe continuously collected the clinical information of 214 patients undergoing heart transplantation from June 2004 to January 2011.Basiliximab was used at 1st h before heart transplant and 4 days after the operation by 20 mg each time.Triad resisting immune rejection scheme included methylprednisone,cyclosporine A and mycophenolate mofetil.The endocardial biopsy was done to diagnose rejection postoperatively,and the severity of acute rejection was graded according to the standardized criteria of the International Society for Heart and Lung Transplantation (ISHLT).The recipients were followed up for 1year after the surgery,the data of the endocardial biopsy and rejection were collected,and the postoperative complications and deaths were observed.Results The first time of recipients to accept the endocardial biopsy was 20.1±7.3 days postoperatively,including 63 (29.4%) cases of Grade Ⅰ A,8 (3.7%) cases of grade Ⅰ B,and 12 (5.6%) cases of grade Ⅱ.One year after operation,143 recipients accepted the endocardial biopsy,including 29 (20.3%) cases of grade Ⅰ A,1(0.7%) case of grade Ⅰ B,12 (7.7%) cases of grade Ⅱ.During hospitalization,5 recipients died,including 3 cases due to transplant heart failure,1case due to multiple organ failure and 1due to sudden death.One year after discharge,there were 2 deaths,including one case of serious rejection and 1case of multiple organ failure One month after operation,infection occurred in 7 cases (3.3%),and acute renal insufficiency in 11cases (5.1%).ConclusionCombined use of Basiliximab with triad resisting immune rejection scheme was a kind of safe and effective therapy to prevent early acute rejection after heart transplantation.
9.Risk Factor Analysis for the Prognosis in Elder Patients With Combined Aortic Valve Replacement and Coronary Artery Bypass Grafting
Zhengbiao ZHA ; Tao YANG ; Hansong SUN ; Yunhu SONG ; Wei WANG ; Jianping XU
Chinese Circulation Journal 2015;(12):1147-1151
Objectives: To analyze clinical characteristics with the early and late prognosis in elder patients with combined aortic valve replacement (AVR) and coronary artery bypass grafting (CABG).
Methods: A total of 232 patients≥65 years of age who received AVR-CABG in our hospital from 2004-02 to 2014-09 were retrospectively analyzed. The risk factors affecting the early and late prognosis in those patients were studied by multivariate Logistic regression analysis and Cox proportional hazards model.
Results: The in-hospital death happened in 7/232 (3.0%) patients, early post-operative complication with prolonged mechanical ventilation time was 28 (12.1%) and bleeding was 14 (6.0%). The follow-up study was conducted in 225/232 (97.0%) survived patients from 3 months to 10 years at the mean of (41.2 ± 29.0) months; 6 (2.7%) patients had cardiac death, the major late post-operative adverse events were cardiac dysfunction (III to IV) or recurrence of angina (8.9%). Multivariate Logistic regression analysis revealed that female (P=0.019, OR=2.576), pre-operative atrial ifbrillation (AF) (P=0.012, OR=3.541) and CPB time (P=0.000, OR=3.781) were the independent risk factors affecting early post-operative outcome. Cox proportional hazards model presented that hyperlipidemia (P=0.025, HR=2.535), smoking (P=0.009, HR=3.414) and the history of PCI (P=0.013, HR=3.562) were the independent risk factors inlfuencing late prognosis of AVR-CABG.
Conclusion: The overall effect of AVR-CABG in elder patients was satisfactory. Female, pre-operative AF, CPB time may affect the early post-operative outcome, while hyperlipidemia, smoking and PCI history could inlfuence the long-term prognosis in relevant patients.
10.Surgical treatment of adult patients with anomalous left coronary artery from the pulmonary artery
Changwei ZHANG ; Yunhu SONG ; Jianping XU ; Shuiyun WANG ; Hansong SUN ; Wei WANG
Chinese Journal of Thoracic and Cardiovascular Surgery 2016;32(8):457-459
Objective To review the experience of the surgical treatment of adult patients with anomalous left coronary artery from the pulmonary artery(ALCAPA).Methods A retrospective,single institution review was conducted on nineteen adult patients with ALCAPA surgical treatment from February 2006 to October 2012.Of these patients,five were males and fourteen were females.The age was(35.3 ± 11.7) years.The weight was (61.2 ± 9.4) kg.Most patients showed some evidence of myocardial infarction or ischemia with either abnormal Q waves (4) or ST-T abnormality (13).Twelve patients with coronary angiography and four patients with coronary CT scan showed good coronary collateralization.The preoperative UCG showed the mean left ventricular ejection fraction(LVEF) was 0.60 ± 0.07,and the mean left ventricular end-diastolic dimension(LVEDD) was(52.4 ± 4.4) mm.Severe mitral regurgitation(MR) was seen in two patients,moderate in three patients and mild in four patients.The operative procedures included Takeuchi operation in seven patients,ligation of left coronary artery concomitant with coronary artery bypass graft in two patients,coronary artery re-implantation in ten patients.Of the ten patients with coronary artery re-implantation,two patients underwent mitral valve repair.Results There was no operative mortality.The mean cardiopulmonary bypass time was (144.5 ± 66.9) min and cross-clamp time was (96.4 ± 38.8) min,respectively.The mean mechanical ventilation time was(12.9 ± 3.7) h and intensive care unit time was(39.2 ± 12.5) h,respectively.The mean postoperative LVEF was 0.62 ± 0.04.No significant reduction in LVEDD (45.8 ± 5.5) mm,P > 0.05.Mild and trivial MR were observed in one and four patients,respectively.Sixteen patients(84.2%) completed the follow up with a mean time of 19.2 months.All the patients survived with New York Heart Association class Ⅰ or Ⅱ.During the follow up period,no patient required reoperation or readmission.At the latest echocardiography,the mean LVEF of 0.63 ± 0.05 and mean LVEDD of(49.2 ± 4.6) mm did not significantly improved compared with the data preoperatively or postoperatively.Mild MR was detected in six patients,trivial in three patients during the follow-up period.Conclusion The adult patients with ALCAPA have a dormant disease process.Surgical treatment has been recommended at the time of diagnosis and the coronary re-implantation could be the first choice.As for the concomitant MR,the guideline for the adult MR should be followed.