重症冠心病的非体外循环下冠状动脉旁路移植术

目的 探讨如何提高莺症冠心病患者非体外循环下冠状动脉旁路移植术的手术疗效.方法 Off-Pump coronary artery bypass grafting of severe coronary artery disease回顾性分析268例重症冠心病患者非体外循环下冠状动脉旁路移植术的临床资料,男性131例,女性137例;搭桥数2～6(4.01±0.99)支/人.对手术方法、主要并发症和术后处理进行分析总结.结果 二次开胸3例(1.1%),低心排综合征9例(3.4%),应用IABP 1例(0.4%),反复发作房颤22例(8.2%),肺功能不全13例(4.9%);死亡2例(0.7%),其余患者康复出院.结论 合理地选择患者、成熟的手术技术、主动脉内球囊反搏(IABP)的尽早应用及术后处理的加强是提高重症冠心病患者非体外循环下冠状动脉旁路移植术疗效的重要措施.     

189例重症冠心病的冠状动脉旁路移植术临床分析

目的:提高重症冠心病人冠状动脉旁路移植术的手术疗效。方法:回顾性分析189例重症冠心病的冠状动脉旁路移植术资料。其中应用体外循环157例,非体外循环32例;搭桥数1～6(平均3.49±1.04)支/人。对手术方法、主要并发症和术后处理进行分析总结。结果:二次开胸4例(2.1％),低心排综合征9例(4.8％),应用主动脉内球囊反搏(IABP)4例(2.1％),反复发作房颤17例(9.0％),胸腔积液27例(14.3％),肺功能不全6例(3.2％),脑合并症3例(1.6％),肝功能不全5例(2.6％),肾功能不全6例(3.2％),死亡7例(3.7％),其余病人康复出院。结论:合理的选择病人,成熟的手术技术,良好的心肌保护,停机困难者IABP的尽早应用及术后处理的加强是提高重症冠心病人冠状动脉旁路移植术疗效的重要措施。     

Efficacy of coronary artery bypass grafting in elderly patients with coronary artery disease

A consecutive series of 121 patients 70 years of age and older who underwent aortocoronary artery saphenous vein bypass grafting without other cardiac procedures during a 5 year period was analyzed and follow-up status ascertained. This group was compared with a consecutive series of 2,850 patients under the age of 70 who underwent aortocoronary bypass during the same period. The patients aged 70 years or greater had a higher incidence of unstable angina pectoris, congestive heart fallure and cardlomegaly on roentgenography. They had more severe coronary obstruction with a 29 percent incidence rate of left main coronary disease versus a 15 percent incidence rate in the patients aged less than 70 years (P < 0.001). The hospital mortality rate for patients aged less than 70 years was 1.1 percent (31 of 2,850) and for those aged 70 years or greater was 1.6 percent (2 of 121). The 119 patients aged 70 years or greater who survived surgery had a significantly greater incidence of postoperative stroke (3 patients), supraventricular tachycardia (28 patients), transient postoperative psychosis (9 patients), heart block requiring permanent pacing (2 patients), intraaortic balloon pumping (5 patients) and pulmonary embolism (4 patients) than patients aged less than 70 years. Both groups had significant symptomatic improvement: More than 95 percent of the survivors in each group were angina-free or in improved condition at late follow-up. Survival at 36 months was 95 percent for the patients in both age groups. A subgroup of patients aged 75 years or greater had comparable symptomatic results and survival. Patients aged 70 years or greater need not be denied the benefits of coronary bypass surgery on the basis of advanced age alone, although these patients have complfcations of surgery more frequently. However, severe calcification of the ascending aorta is a relative contraindication to saphenous vein bypass surgery in this age group.     

浅低温不停跳体外循环方法在重症搭桥手术中的应用

目的:总结重症患者在浅低温不停跳体外循环(extracorporeal circulation,ECC)下行冠状动脉旁路移植手术的效果。方法:2010年1月至2011年5月对34例择期行冠状动脉旁路移植术(coro-nary artery bypass grafting surgery,CABG)的重症患者(左主干病变、左心室舒张末期内径>60 mm、左心室射血分数<40%、术前Euroscore评分>6分、术前心源性休克、急性心肌梗死)施行浅低温ECC下不停跳CABG,术前均存在不稳定型心绞痛。其中10例(28%)合并糖尿病。3例(44%)患者术前应用了主动脉内球囊反搏(intra-aortic ballon pump,IABP)。分析总结重症CABG患者体外循环管理经验。结果:平均ECC时间68 min(42～123 min),机械通气时间平均18 h(6～84 h),ICU滞留时间平均2 d(14h～14 d),住院时间平均22 d(10～34 d)。12例患者术后应用IABP。无与ECC相关的神经系统并发症,肾功能不全6例(18%),并应用肾替代疗法。死亡2例(6%)。结论:对严重心功能不全或血管条件不好的重症CABG患者,采用浅低温不停跳ECC是一种安全可靠的手术方法。     

非体外循环冠状动脉旁路移植术在左主干重度狭窄患者中的应用

目的总结左主干重度狭窄冠心病患者行非体外循环下冠状动脉旁路移植术（OPCAB）的治疗效果和临床经验。方法回顾分析2005年1月至2012年6月,83例左主干狭窄〉70％的患者接受了非体外循环下冠状动脉旁路移植术,其中27例急诊手术,三支病变62例,两支病变21例,术中改为体外循环5例;使用主动脉内球囊反搏7例。结果远端吻合口平均（3．34±0．83）个,死亡2例（2．4％）。随访2个月至2年,仅1例心绞痛复发,余者均未出现心绞痛症状。手术效果及手术并发症的发生与非左主干病变组差异无统计学意义（P〉0．05）。结论左主干重度狭窄行非体外循环下冠状动脉旁路移植术临床效果良好。     

Off-pump coronary artery bypass grafting for patients with left main disease

BACKGROUND: Multivessel off-pump coronary artery bypass grafting (CABG) has been performed with favorable results in our institute. In this study, we analyzed the outcomes in patients who underwent off-pump CABG for left main disease, since the surgical outcomes for such patients have not been clarified. METHODS: Between March 1, 1999 and July 30, 2002, a total of 147 patients with left main disease (112 males and 35 females, mean age 66.9 +/- 9.8 years) underwent off-pump CABG. Perioperative and follow-up data were entered into a structured database and the results were analyzed. RESULTS: Urgent or emergent surgery was performed in 25 patients (17.0%), and a preoperative intra-aortic balloon pump was used in 12 patients (8.2%). The mean number of bypass grafts was 3.2 +/- 1.0, and complete revascularization was performed in 127 patients (86.4%). There were 4 incidences of intraoperative conversion from off-pump to on-pump surgery. The mean intubation period, intensive care unit stay and postoperative hospital stay were 9.4 +/- 13.0 h, 2.3 +/- 1.4 days and 13.4 +/- 7.3 days, respectively. There was 1 hospital death (0.7%). Postoperative myocardial infarction was observed in 2 patients (1.4%), postoperative stroke in 1 (0.7%), prolonged ventilator support in 5 (3.4%) and mediastinitis in 3 (2.0%). During the follow-up period of 2.1 +/- 1.0 years, there were 4 deaths and 7 cardiac events. The actuarial 3-year survival rate was 97.0%, and the event-free rate was 94.3%. CONCLUSION: Our observations support off-pump CABG as a surgical option with a favorable outcome for patients with left main disease.     

186例老年冠心病患者是、否体外循环下冠脉旁路移植术的比较

目的:比较老年冠心病患者体外循环与非体外循环下冠状动脉旁路移植术的疗效。方法:A组选择87例65岁以上的老年患者在体外循环下行冠状动脉旁路移植术(CCABG);B组选择79例65岁以上的老年患者在非体外循环下行冠状动脉旁路移植术(OPCABG)。结果:B组死亡率低于A组(P<0.05),术后胸腔引流量明显少于A组(P<0.05)。结论:老年冠心病患者行冠状动脉旁路移植术是安全的。     

Long-term outcome of percutaneous transluminal coronary angioplasty and coronary artery bypass grafting in patients with end-stage renal disease

This study was conducted to investigate therapeutic methods for end-stage renal disease (ESRD) by retrospectively analyzing in-hospital outcome and long-term outcome in patients who underwent either percutaneous transluminal coronary angioplasty (PTCA) or coronary artery bypass grafting (CABG). Ninety-two patients underwent PTCA and 47 underwent CABG, and the initial success rates were 87% and 85%, respectively. As major in-hospital complications, in the PTCA group 1 died (1%), 2 required emergency CABG (2%), and 2 had Q-wave myocardial infarction (2%); in the CABG group, 7 died (15%) and 3 had Q-wave myocardial infarction (6%). As for the long-term outcome, although there were no differences in the incidence of death or the incidence of cardiac death between the 2 groups, the cumulative proportion of patients free of death, myocardial infarction, CABG and repeat PTCA was lower in the PTCA group, which was mainly due to a higher incidence of repeat PTCA in that group. The incidence of cardiac death was low for both groups among the patients attaining complete revascularization. Twenty-three percent of the patients required cross-over implementation of PTCA and CABG. In conclusion, it is necessary to aim for complete revascularization using both treatments for a better prognosis in patients with ESRD.     

Conventional coronary artery bypass grafting in patients with total occlusion of the internal carotid artery

The number of patients with coexisting disease of the coronary and carotid arteries is increasing. Patients with total occlusion of the carotid artery may have a higher risk of stroke during cardiopulmonary bypass surgery and in the perioperative period. We report our results for coronary artery bypass grafting (CABG) in patients with total occlusion of the carotid artery. We examined 269 patients who underwent carotid artery duplex scanning (CADS) before CABG between November 1995 and January 1998. Among them, 11 patients (4.1%) had total occlusion of a carotid artery. Four patients underwent elective CABG and five underwent emergency CABG. One patient underwent anastomosis of the superficial temporal artery to the middle cerebral artery (STMC) and one patient underwent a combined CABG and carotid endoarterectomy (CEA) procedure. A transient neurological event occurred in only one patient (9.1%). The other patients recovered uneventfully. Our results suggest that CABG can be performed without stroke in patients with total unilateral occlusion of a carotid artery using our strategies. Received: April 25, 2001 / Accepted: August 3, 2001     

冠状动脉主干重度狭窄搭桥术麻醉处理486例总结

目的:探讨冠心病冠状动脉主干重度狭窄患者,行搭桥术临床特点及围术期治疗措施。方法:我们对2001年1月至2010年10月,486例冠状动脉主干重度狭窄行搭桥术患者的麻醉及围术期治疗进行回顾性分析。结果:442例行非体外循环下冠状动脉搭桥术(OPCABG)。28例在体外循环下行冠状动脉搭桥术(CABG)。16例患者在OPCABG过程中,由于发生严重心肌缺血、心动过速及低血压,改为体外循环下完成手术。113例放置主动脉内球囊反搏(IABP),包括术前、麻醉前放置8例,麻醉后及术中放置78例,术后放置27例。死亡9例,发生在术后72 h内。结论:冠心病冠状动脉主干重度狭窄患者,围术期需要维持心率、血压平稳、合理的血管扩张药和正性肌力药物选用,IABP的积极使用,完备的体外循环和急救药的准备,防治患者围术期冠状动脉痉挛和心肌梗死。     

高龄冠心病患者冠状动脉搭桥术

目的比较冠脉搭桥术（CABG）的术式选择对高龄冠心病患者的影响,讨论高龄冠心病患者的围手术期管理方法。方法以我院心脏血管外科2003年1月至2009年12月所实施的514例CABG患者为研究对象,其中75岁以上患者49例,为高龄患者组,占同期CABG的9．5％;75岁以下患者465例,为非高龄患者组,占同期CABG的90．5％。结果患者的年龄、不稳定型心绞痛、有无急性心梗、冠脉危险因子、术前血红蛋白含量比例两组相比差异无统计学意义;左室射血分数〈30％,既往合并肾功能异常、脑梗塞及患有三支冠状动脉病变的患者比例两组相比差异有统计学意义。主动脉内气囊反搏（IABP）、移植血管种类、手术时间两组相比差异无统计学意义,但远心端吻合口数及完全性血运再建例数比例、跳动下冠状动脉搭桥手术（OPCAB）比例两组之间比较差异有统计学意义。术后气管插管时间、留置ICU时间两组之间比较差异无统计学意义,患者住院天数两组之间比较差异有统计学意义。术后肺部感染、肾衰、并发症脑梗塞发生率两组之间比较差异无统计学意义。围手术期死亡率两组之间比较差异无统计学意义。术后平均39个月的电话随访,心衰、心梗发生率及心源性死亡率两组之间比较差异无统计学意义。结论对于高龄患者的CABG要多考虑采用OPCAB方式及动、静脉移植血管相组合等低侵袭性手术方法,术后应早期下床进行康复训练。     

冠心病伴重度心功能不全患者非体外循环冠状动脉旁路移植术22例临床分析

目的:分析心功能不全冠心病患者行非体外循环冠状动脉搭桥(OPCABG)的临床资料,总结围术期规律,提出治疗方法。方法:回顾性分析2008年1月至2012年6月,同一术式手术的22例射血分数(EF)<30%的冠心病患者行OPCABG的资料(组1)。同时随机选择同数目的 EF在30%～40%(组2),>40%(组3)的患者的资料作对比。结果:所有患者均痊愈出院。组1与组3比较,在院术前调整天数,室壁瘤手术例数,IABP使用例数及时间,ICU停留时间,使用强心药种类,术后住院天数和住院费用,差异均有统计学意义(P<0.05)。组2、组3术后住院天数,住院费用差异无统计学意义(P>0.05)。结论:心功能不全患者行OPCABG风险大,手术费用高,所占医疗资源多,应慎重选择病例。此类患者通过合理方式的再血管化,积极的围术期处理,亦可得到良好的治疗效果。     

Postoperative outcome after coronary artery bypass grafting in chronic obstructive pulmonary disease

BACKGROUND:

It is uncertain if the presence and severity of airflow obstruction in chronic obstructive pulmonary disease (COPD) is predictive of surgical morbidity and mortality after coronary artery bypass grafting (CABG).

METHODS:

Retrospective study of patients who underwent CABG between 1998 and 2003 in a university-affiliated hospital for whom a preoperative spirometry was available. COPD was diagnosed in smokers or ex-smokers 50 years of age or older in the presence of irreversible airflow obstruction. Patients were divided into three groups depending on the spirometry: controls (forced expiratory volume in 1 s [FEV₁] 80% or more, FEV₁/forced vital capacity [FVC] greater than 0.7), mild to moderate COPD (FEV₁ 50% or more and FEV₁/FVC 0.7 or less) and severe COPD (FEV₁ less than 50% and FEV₁/FVC 0.7 or less).

RESULTS:

Among the 411 files studied, 322 (249 men, 68±8 years of age) were retained (controls, n=101; mild to moderate COPD, n=153; severe COPD, n=68). The mortality rate (3.0%, 2.6% and 0%, respectively) was comparable among the three groups. Patients with severe COPD had a slightly longer hospital stay than controls (mean difference 0.7±1.4 days, P<0.05). Pulmonary infections were more frequent in severe COPD (26.5%) compared with mild to moderate COPD (12.4%) and controls (12.9%), P<0.05. Atrial fibrillation tended to be more frequent in severe COPD than in the other two groups.

CONCLUSION:

Mortality rate associated with CABG surgery is not influenced by the presence and severity of airflow obstruction in patients with COPD. The incidence of pulmonary infections and length of hospital stay were increased in patients with severe COPD.     

冠状动脉外科发展史

冠状动脉搭桥手术（CABG）是当今冠心病治疗的重要手段之一。因其疗效好，再手术率低，已越来越多地被冠心病患者所接受。冠状动脉外科的发展是一个具有创造性思维的故事，期间有极大期望，亦有极大失望，但最终它产生了令人满意的结果。本文分5个阶段简述。     

Risk factors for severe coronary artery disease - a case-control study of patients who have undergone coronary artery bypass grafting

To investigate risk factors for coronary artery disease (CAD), we analyzed the clinical parameters of patients with a coronary artery bypass graft (CABG) in a case-control study. Eighty-eight patients (75 males and 13 females) who underwent CABG surgery between 2001 and 2002 were compared with age- and sex-matched healthy controls randomly chosen from the registry of Kobari Health Care Center. Wilcoxon's signed rank test and McNemar's test were used for pairwise comparisons. Multivariate logistic regression analysis was used to identify significant risk factors for CABG. Significant differences between the patients and controls were observed in HDL-C (p < 0.001), HbA(1c) (p < 0.001), Brinkman Index (BI; p < 0.001), body mass index (BMI; p = 0.002), and systolic blood pressure (SBP; p = 0.013). Subjects with an abnormal BMI, HbA(1c), or HDL-C or high BI value made up a significantly higher proportion of the patients who underwent CABG, compared to their age- and sex-matched controls. Multivariate logistic regression analysis identified high levels of HbA(1c), low levels of HDL-C, and high scores on the BI as significant risk factors for needing a CABG. These results demonstrate that, despite the modification of laboratory determinations by antecedent treatment, HDL-C, HbA(1c), BI, BMI, and SBP are significant indicators of risk for CAD.     

Carotid stenosis and peripheral artery disease in Japanese patients with coronary artery disease undergoing coronary artery bypass grafting.

The combination of a change in lifestyle toward Western habits and an aging society, has led to a steady increase in the incidence of atherosclerotic diseases in the Japanese population. Coronary artery disease (CAD), carotid stenosis (CS), and peripheral artery disease (PAD) are major manifestations of generalized atherosclerosis and increase the risk of cardiovascular events. However, the incidence of CS and PAD in Japanese patients with CAD is not well known, so the present study investigated this in 380 consecutive patients with CAD undergoing elective coronary aorta bypass grafting (CABG) at Kishiwada Tokushukai Hospital between October 1999 and October 2001. The coexistence of CS and PAD in all patients was preoperatively evaluated by duplex ultrasonography and the ankle - brachial index (ABI). The average age of the study population was 66.09.1 years (range, 42-87). The number of male patients was 293 (77.1%). The incidence of CS was 13.7% and 15.3% for PAD. Multivariate logistic regression analysis demonstrated that no particular traditional atherosclerotic risk factor, such as hypertension, hyperlipidemia, diabetes mellitus, and smoking, was able to predict either CS or PAD, but CS and PAD were independent predictors of each other. The results of the study suggest that CS and PAD were not only highly prevalent but also strongly associated with each other in this cohort of CAD patients. Accordingly, extracoronary atherosclerotic disease should be assessed in Japanese CAD patients.     

Carotid artery involvement in patients of atherosclerotic coronary artery disease undergoing coronary artery bypass grafting

BACKGROUND: Patients with concomitant critical carotid and coronary artery disease are at risk of major neurological events while undergoing coronary artery bypass grafting. The presence of carotid artery stenosis increases the stroke rate in the perioperative period. In an effort to reduce the stroke rate, many institutions perform routine preoperative noninvasive assessment of the carotid arteries. METHODS AND RESULTS: We analyzed the clinical and laboratory data of 1,200 patients who underwent coronary artery bypass surgery in the last 2 years. Carotid Doppler was normal in 186 patients (15.5%), and showed <30% stenosis in 796 (66.3%), 30%-50% in 110 (9.2%), 50%-70% stenosis in 64 (5.3%) and critical (>70%) stenosis in 44 (3.7%) patients. Conventional risk factors such as hypercholesterolemia, hypertension, smoking and family history were not independent predictors of carotid artery stenosis. However, diabetes as a risk factor had a significant association with carotid artery disease (79.6% v. 43.8%, p<0.02). There was a trend towards increased prevalence of carotid artery stenosis in patients with > or = 2 risk factors (84.3% v. 68.8%). Patients with significant carotid artery stenosis had severe coronary artery disease (triple-vessel disease 93.3%, left main coronary artery disease 12.0%). Out of 44 patients with critical carotid artery stenosis, 27 were subjected to carotid angiography. Doppler findings correlated well with angiography. Seventeen patients underwent carotid artery intervention. None had any perioperative neurological events. A total of 5 (0.4%) patients had a major stroke. Coronary artery bypass grafting was done in 27 patients with critical stenosis without any intervention. The stroke rate (11.1%) was higher in these patients compared to patients with < 70% carotid artery disease or post-carotid intervention (2.5%) patients. Thus, untreated >70% carotid artery stenosis was associated with a higher stroke rate. CONCLUSIONS: Doppler screening of the carotid artery is helpful in detecting the subgroup of patients at increased risk of stroke. Patients with critical carotid artery stenosis should be subjected to angiography. Prophylactic intervention may reduce the occurrence of stroke in the perioperative period.     

心脏直视手术前颈动脉支架术的初步探讨

目的 评估心脏疾病合并严重颈动脉狭窄患者于心脏直视手术前行颈动脉支架术预防围手术期缺血性卒中的有效性和安全性.方法 前瞻性队列研究,对心脏疾病合并严重颈动脉狭窄患者于心脏直视手术前行颈动脉支架术,评估颈动脉支架术至心脏直视术后30 d的终点事件(卒中、心肌梗死和死亡).结果 自2005年1月至2007年12月,本研究共连续入选42例患者.颈动脉支架技术成功率100%.远端栓塞防护装置使用率为97.6%(41/42).心脏直视手术包括:冠状动脉旁路移植术36例(85.7%),冠状动脉旁路移植术加瓣膜置换术5例(11.9%),瓣膜置换术1例(2.4%).自颈动脉支架术至心脏直视术后30 d的卒中率为2.4%(1/42),心肌梗死率为0%,死亡率为0%.结论 这一小样本前瞻性队列研究表明,心脏直视手术前行颈动脉支架术预防围手术期缺血性卒中安全有效,优于文献报告的分期颈动脉内膜剥脱术的结果,但由于本研究样本量小,需进一步研究验证.