1.SURGICAL MANAGEMENT OF 14 CASES COR TRIATRIATUM
Bojun LI ; Changqing GAO ; Langbia ZHU
Medical Journal of Chinese People's Liberation Army 1981;0(06):-
To review the experience in surgical management of cor triatriatum, fourteen patients underwent open heart surgery under hypothermic cardiopulmonary bypass (CPB) from 1986 to 2001 for their cor triatiatum were studied retrospectively. The mean age of the patients was 6 6 years, with a range of 1 to 26 years. Eight patients were men and six were women. Eleven cases were diagnosed by two dimensioned echo cardiography with colour Dopplar imaging. Eleven patients with complete cor triatriatum were operate on enlarging ASD, resecting the fiboromuscular membrane and patching ASD and one patient with incomplete cor triatriatum were operated on through similar techniques and the associated abnormalities were corrected at a time. Nine patients were followed up after surgery from 5 months to 15 years, no patient died and had salutary results. It suggested that two dimensional echo cardiography with colour Doppler imaging can diagnose this condition accurately, surgical treatment of cor triatriatum was satisfactory in longterm follow up.
2.ATRIAL FIBRILLATION AFTER OFF-PUMP CORONARY ARTERY BYPASS GRAFTING
Xiaohui MA ; Changqing GAO ; Bojun LI
Medical Journal of Chinese People's Liberation Army 2001;0(10):-
70 years, history of stroke, and a tear of the pleura. Conclusions The incidence of AF in CABG and off-pump CABG were almost similar. Old age of the patient was the pathological basis for developing AF, and the history of stroke and a tear of the pleura were the predisposing factors.
3.Clinical studies on plasma homocysteine levels and correlated factors after coronary artery bypass grafting
Xiaohui MA ; Changqing GAO ; Bojun LI
Medical Journal of Chinese People's Liberation Army 1982;0(03):-
Objective To search for the factors which may be responsible to the increase in plasma homocysteine(Hcy)levels after surgery.Methods Blood samples were taken from 40 patients(20 patients with coronary artery bypass and the remainders with off-pump coronary artery bypass)1 day before operation and 1,3,5 and 7 day(s)after operation.Hcy,copper,ceruloplasmin,ferrei ion,folate,vitamin B12 and C-reactive protein(CRP)were then measured using clinical chemistry methods.Results The plasma concentrations of ceruloplasmin,copper and Hcy increased significantly at 3rd,4th and 6th day after operation respectively.The plasma concentrations of ferreous ion and vitamin B12 declined obviously at 3rd day after operation,and then increased slowly.In contrast,the plasma concentration of CRP increased significantly at 3rd day after operation,then decreased gradually to normal level.No significant changes were found in folate level before and after operation.Those findings mentioned above showed no significant difference between the two groups.Conclusions The increased plasma concentration of Hcy after operation may be caused by the internal metabolism of copper rather than by the coronary artery bypass.
4.Morphological and functional changes in heart of patients with giant left ventricle after valve surgery
Shengli JIANG ; Changqing GAO ; Bojun LI
Medical Journal of Chinese People's Liberation Army 1981;0(04):-
Objective To investigate the morphological and functional changes in the heart of patients with giant left ventricle after valve surgery,and to explore the relationship between the morphology of left ventricle and its function.Methods 86 patients with severely dilated left ventricle underwent echocardiographic examination before and 7-14 days after operation.Left ventricle diameters were measured(LVEDD,LVESD)and matched to the body surface area(LVEDDI,LVESDI).Left ventricular ejection fraction(EF)and fractional shortening(FS)were calculated.Results Left ventricular dimensions significantly decreased 7-14 days after operation.LVEDD was 76.48?5.21mm before operation and 62.58?12.62mm after operation(P
5.Comparative studies on perioperative hemodynamics in coronary artery bypass with or without cardiopulmonary bypass
Xiaohui MA ; Changqing GAO ; Bojun LI
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
Objective To analyze the hemodynamic changes during coronary artery bypass grafting with or without cardiopulmonary bypass.Methods Thirty patients undergone coronary artery bypass grafting from January to June,2006 were retrospectively analyzed.Among them,12 patients were operated on with cardiopulmonary bypass(CCABG)and 18 without cardiopulmonary bypass(OPCAB).The stabilizator(type Octops III)was used to fix target vessels in OPCAB group.In CCBAG group,the extracorporeal circulation was used routinely,and internal mammary artery and saphenous vein were used to anastomose with target branches of coronary artery.The hemodynamic changes at different time points during and after operation were monitored,and the relevant parameters were also recorded.Results The anaesthesia time,intraoperative blood loss and fluid input,and ventilating time after operation in CCABG group were significantly higher than those in OPCAB group,and the postoperative haematocrit(HCT)was significantly lower in CCABG group than that in OPCAB group(P
6.Clinical analysis of preoperative coronary angiography before valvular surgery with concomitant coronary artery bypass grafting
Bojun LI ; Changqing GAO ; Fan ZHANG
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
Objective To summarize the clinical experience of coronary angiography before coronary artery grafting (CABG) with concomitant valvular surgery in patients with valvlar disease. Methods From April 2000 to May 2005, two hundred and eleven patients over 50 years old (mean age 60 3.5) with valvlar diseases were studied retrospectively. Coronary angiography was utilized for patients who were found to have risk factors for atherosclerosis. Coronary stenosis over 50% of its calibre was considered positive, and 75% stenosis (including LMCA stenosis more than 50%) was used as the indication for coronary artery bypass surgery. Results Coronary angiography was employed in 128 patients and 30 cases (23.4%) had coronary artery stenosis exceeding 50%. CABG was concomitantly performed during cardiac valvular surgery in 24 patients. In-hospital mortality in patients with valve surgery alone was 0.5%, which was significantly lower compared with patients with valve surgery combined with CABG group (4.2%)(P
7.Experience of harvesting great saphenous vein without infectious complication in 1050 cases of coronary artery bypass grafting
Cangsong XIAO ; Changqing GAO ; Bojun LI
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
Objective To introduce experience of harvesting great saphenous vein (GSV) and surgical techniques to avoid infectious complication in coronary artery bypass grafting (CABG). Methods One thousand and one hundred twenty CABG, including 523 conventional CABG (CCABG) and 597 off-pump coronary artery bypass grafting (OPCAB), were performed by the same surgical team. One thousand and fifty GSV were used as the conduit. Left internal mammary artery was routinely anastomosed to left anterior descending artery(LAD), and GSV and/or radial artery to the other target vessels. Preoperative selection of GSV, operative procedure of harvesting, meticulous postoperative supervision and appropriate treatment of the incision, and the control of risk factors as diabetes mellitus, which composed an integral part of periopertive strategies, are critical to avoid infectious complication. Results No infection occurred. Recovery of two patients with diabetes mellitus was complicated by delayed healing of incision. In ten patients there was a slight exudation from the incision, and they healed without infection after the addition of 2~3 interrupted sutures. Healing was not delayed. Swelling of the involved legs occurred in the majority of patients, and numbness along the incision was also documented in some patients, and it usually recovered to normal three months after operation, after being followed-up for 3 months to 2 years. Conclusion Infection can be completely avoided after the planned procedure of harvesting GSV and meticulous perioperative care.
8.Perioperative management of the elderly patients undergoing coronary artery bypass grafting
Yang WU ; Changqing GAO ; Bojun LI
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
Objective To introduce the strategies of coronary artery bypass grafting (CABG) surgery for elderly patients over 65 years old. Methods Three hundred and ninety four elderly patients were retrospectively studied, 92.4% of whom were complicated with other diseases. Off-pump CABG (OPCAB) was used in 248 cases (62.4%). For the remaining patients with severely compromised cardiac function or small target vessel with diffuse lesion, conventional CABG (CCABG) was selected. Left internal mammary artery (LIMA) was harvested with extrapleural harvesting technique and grafted to left anterior descending artery (LAD) in 96.2% of patients. Saphenous vein or radial artery was utilized for the other coronary arteries. Transit-time flowmeter (TTFM) was utilized to make sure that grafts were patent with satisfactory blood flow. Perioperative blood sugar level was controlled at 6-10mmol/L by insulin. Results Grafts of per patient were 3.14?0.55 for on-pump CABG and 2.40?0.81 for OPCAB. Three patients died resulting in a mortality of 0.76%. The incidence of complication was 2.28%. The rest recovered uneventfully. Intubation time of OPCAB was significantly shorter than that of CCABG. Patients were discharged within 11.84?4.95 days after operation. Conclusion Good short-term result, namely low incidence of mortality and complication, could be obtained in elderly patients over than 65 years old undertaking CABG.
9.Surgical management of coronary artery disease associated with valvular heart disease
Shengli JIANG ; Changqing GAO ; Bojun LI
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
Objective To review the experience of surgical management of coronary artery disease associated with valvular heart disease. Methods From 1998 to 2004, fifty-seven patients with coronary artery lesion and valvular disease underwent coronary artery bypass grafting with concomitant valvular operation. The mean age of the patients was 60 years. Heart function (NYHA) was class II in 9 patients, class III in 37, class IV in 11. 37 patients had mitral valve lesion, 11 aortic valve lesion, and 9 with lesions of both valves. 26 cases had single-vessel disease, 20 with double-vessel disease,11 with triple-vessel disease, and 9 with main artery lesion. After cardiac arrest with the aid of cold cardioplegia under moderate cardiopulmonary bypass, distal anastomosis of the saphenous vein (SV) to the target vessels was first performed followed by valve replacement (49 patients) or valvular plasty (8 patients). The left mammary artery was grafted to the left anterior descending artery before aortic declamping. Proximal anastomosis of the SV to the aorta was finally finished on beating heart. The mean bypass time was 173.5 min and the mean duration of aortic cross-clamping was 112.6 min. Results Except one patient, no mortality and severe morbidity occurred during hospitalization. Heart function was improved to class I-II and no one died during follow-up period. Conclusion CABG combined with valve surgery can be safely performed with good results.
10.Experience of 582 cases of off-pump coronary artery bypass grafting
Changqing GAO ; Bojun LI ; Cangsong XIAO
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
Objective To summarize the operative techniques and clinical outcome of 582 patients undergoing off-pump coronary artery bypass grafting (OPCAB). Methods 582 patients who underwent off-bump coronary artery bypass were retrospectively studied. Results One patient was re-explored for bleeding. The other patients experienced a good recovery without complications. The mean mechanical ventilation time was 3.2?1.2h, and the mean hospital stay time was 7?1.6d. All the patients were free from angina after the operation. 2 patients died of arrhythmia. Conclusions OPCAB can reduce the time of postoperative recovery and decrease the incidence of complication and mortality. OPCAB is a good choice for high-risk patients.