Hybrid技术治疗冠心病合并严重颈动脉狭窄的临床疗效及安全性研究

目的回顾性分析颈动脉支架术(CAS)和冠状动脉旁路移植术(CABG)同期或分期Hybrid技术治疗冠心病合并严重颈动脉狭窄的临床疗效及安全性。方法入选2008年7月至2014年9月期间中国医学科学院阜外医院成人心脏外科收治的同期或分期实施CAS和CABG的冠心病合并严重颈动脉狭窄患者274例,依据两种手术是否同期实施分为两组:同期手术组(间隔≤7 d,n=35)和分期手术组(间隔7 d,n=239)。对两组患者的临床资料及预后进行比较分析。结果与同期手术组相比,分期手术组患者的搭桥数量、颈动脉支架植入个数以及肾动脉支架植入个数显著增加,而呼吸机辅助时间显著减少,差异均具有统计学意义(P0.05)。中位随访时间为45.6(28.1~65.4)个月,随访期间仅1例患者发生脑卒中而死亡。两组患者围手术期不良事件发生率间差异无统计学意义(P0.05)。截至随访终期,Cox模型分析结果显示,是否同期手术与患者复合终点事件发生率无明显相关性(OR=0.679,95%CI:0.12~3.72;P=0.66)。结论 CAS联合CABG是治疗冠心病合并严重颈动脉狭窄的一种安全、有效的微创策略。     

颈动脉粥样硬化与冠状动脉粥样硬化的关系

目的　探讨颈动脉粥样硬化与冠状动脉粥样硬化的关系。方法　对 94例老年患者进行了冠状动脉造影和颈动脉超声检查。颈动脉粥样硬化斑块积分采用Sutton法。结果　单支组及多支组内膜中膜厚度、斑块积分显著高于正常组 ,多支组显著高于单支组 (P<0 .0 5 )。斑块指数与年龄、吸烟、低密度脂蛋白胆固醇与高密度脂蛋白胆固醇的比值、收缩压以及高血压病程的程度呈正相关。结论　颈动脉粥样硬化与冠状动脉粥样硬化的病变是平行的     

Treatment strategies for carotid stenosis in patients at increased risk for surgery

The purpose of carotid revascularization is stroke prevention. The merits of carotid revascularization as well as the type of revascularization are dependent on the “natural risk” and the “revascularization risk.” In general, the natural risk of stroke in any patient with carotid stenosis (CS) is dependent on the symptomatic status of the patient and CS severity. Contemporary choices for carotid revascularization include carotid endarterectomy (CEA) and carotid artery stenting (CAS). Anatomical (hostile neck situations, severe bilateral CS, CEA restenosis) and clinical (severe cardiopulmonary diseases, prior cranial nerve injury) factors may increase the risk of CEA. Likewise, anatomical (complex aortic arch and brachiocephalic arterial anatomy, presence of thrombus, and heavy calcification) and clinical (need for heart surgery within 30 days) factors may increase the risk of CAS. Other factors such as the presence of symptomatic CS (transient ischemic attack or stroke within 6 months), decreased cerebral reserve, chronic kidney disease, and age older than 75 years may increase the risk of CEA and CAS. In general, symptomatic patients with severe CS exceed revascularization risk. In contrast, asymptomatic patients who are high risk for CEA should be considered for CAS because the natural risk of stroke should undergo careful assessment of baseline cognitive function, aortic arch and carotid artery anatomy, and likelihood of survival for 3 years. Patients who have normal cognitive function, favorable anatomy, and high likelihood of survival more than 3 years should be considered for CAS, whereas patients with multiple unfavorable features may be treated with optimal medical therapy, without revascularization.     

颈动脉介入治疗患者行冠状动脉造影的意义分析

目的探讨接受颈动脉介入治疗的严重颈动脉狭窄（carotid artery stenosis,CAS）患者术前行冠状动脉（冠脉）造影（coronary angiography,CAG）的意义。方法连续入选2002年6月至2013年10月之间197例行颈动脉介入治疗的严重CAS患者,所有患者在行颈动脉介入治疗前常规进行CAG。据造影结果分析CAS和冠状动脉疾病（coronary artery disease．CAD）的关系。结果CAS合并CAD共155例,共患率为78．68％。不同CAS病变血管数不同冠脉狭窄程度的患者比例比较,差异无统计学意义（χ2=6．812,P=0．078）。不同CAS病变血管数不同冠脉病变血管数的患者比例比较,差异有统计学意义（χ2=11．726,P=0．008）。以分类变量CAS有无合并CAD为因变量进行多元回归的Logistic回归分析,未发现在CAS患者中发生CAD的独立危险因素。线性回归分析显示,CAS病变血管数与冠脉病变血管数正相关（r=0．328,P=0．030）。结论CAS与CAD的共患率较高,颈动脉病变血管数与冠脉病变血管数存在正相关,这对患者的整体治疗策略有重要指导意义。     

The carotid artery revascularization and endarterectomy (CARE) registry: Objectives,design, and implications

This is the first comprehensive national registry that will provide data characterizing contemporary results of carotid endarterectomy (CEA) and carotid artery stenting (CAS). Carotid endarterectomy (CEA) has become the standard revascularization therapy to prevent stroke in patients with carotid artery disease, while carotid artery stenting (CAS) offers a percutaneous alternative in selected patients. Given the rapid growth in the numbers of CAS procedures being performed, there is a critical need for a national program to assess quality outcomes. The Carotid Artery Revascularization and Endarterectomy (CARE) Registry was developed through a multispecialty collaboration resulting in a comprehensive data collection tool for carotid revascularization procedures. The intent of the CARE registry is to collect and analyze clinical data to measure clinical practice, patient outcomes, and enable quality improvement for carotid revascularization. Finally, the CARE Registry satisfies the Center for Medicare and Medicaid Services (CMS) data reporting criteria for reimbursement. © 2008 Wiley‐Liss, Inc.     

Intra-aortic counterpulsation during carotid stenting.

Postprocedural hypotension following endovascular stent placement of carotid artery disease (CAS) predicts increased in-hospital complications and long-term risk of death. Intra-aortic balloon counterpulsation (IABP) both increases mean arterial pressure and cerebral blood flow and therefore possibly reduces complications due to hemodynamic instability during and after CAS. In this study, we describe the use of IABP in a patient with severe depression of left ventricular function due to diffuse coronary artery disease undergoing CAS. Controlled studies are necessary to demonstrate a potentially protective role of IABP in high-risk CAS patients.     

Percutaneous approach to treatment of coronary disease in a patient with uremic cardiomyopathy

Uremic cardiomyopathy is chronic ischemic left ventricular dysfunction characterized by heart failure, myocardial ischemia, hypotension in dialysis and arrhythmia. This nosologic entity represents a leading cause of morbidity and mortality among patients with endstage renal disease receiving long-term hemodialysis. It is intuitive that revascularization in the presence of coronary artery disease in these patients represents an effective option for improving their prognosis. Although the surgical option seems to be followed by the best clinical outcome, some patients refuse this option and others are not good candidates for surgery. The present report describes the case of a patient affected by uremic cardiomyopathy and severe coronary artery disease in whom revascularization with percutaneous coronary angioplasty was followed by a significant improvement in quality of life.     

Transradial approach for carotid artery stenting: a feasibility study.

BACKGROUND: Carotid artery stenting (CAS) has become accepted as an alternative to carotid endarterectomy for revascularization of the internal carotid artery (ICA) among high risk patients. CAS from the femoral approach can be problematic due to access site complications as well as technical difficulties related to peripheral vascular disease (PVD) and/or anatomical variations of the aortic arch. The purpose of the present study is to evaluate the feasibility of the radial artery as an alternative approach for CAS. METHODS: Forty-two patients (mean age 71 +/- 1, 26 male) underwent CAS. All had a CA stenosis greater than 80% and comorbid conditions increasing the risk of carotid endarterectomy. The target common carotid artery (CCA) was initially cannulated via the radial artery using a 5F Simmons 1 diagnostic catheter which was then advanced to the external CA (ECA) over an extra support 0.014" coronary guidewire. After removing the coronary guidewire, a 0.035" guidewire was advanced into the ECA, and the Simmons 1 was exchanged for a 5F or 6F shuttle sheath and positioned in the distal CCA. In four patients with a bovine aortic arch, the left CCA was accessed with a 5F Amplatz R2 catheter which was then exchanged for a shuttle sheath over a 0.035" guidewire. CAS was performed using standard techniques with weight-based bivalirudin for anticoagulation. RESULTS: CAS was successful in 35/42 (83%) patients, including 28/29 (97%) right CA, 4/5 (80%) bovine left CA, 7/13 (54%) left CA. Mean interventional time was 30 +/- 3 minutes. The sheath was removed immediately after the procedure. There were no radial access site complications. One patient sustained a stroke 24 hrs after the procedure with complete resolution of symptoms (Mean NIH stroke scale 2.0 +/- 0.3 before, 1.9 +/- 0.3 after). Median hospital stay was 2 +/- 0.6 days. Inadequate catheter support at the origin of the CCA was the technical cause of failure in the seven unsuccessful cases. CONCLUSION: CAS using the transradial approach appears to be safe and technically feasible. The technique may be particularly useful in patients with right ICA lesions and severe PVD or unfavorable arch anatomy, and among patients with a bovine aortic arch.     

Should We Revascularize Before Implanting a Pacemaker?

BACKGROUND: The effect of coronary revascularization on disappearance of the severe conduction disturbances is still unclear. HYPOTHESIS: We sought to determine whether revascularization may induce recovery of sinus rhythm in patients with significant coronary artery disease and complete atrioventricular block (AVB). METHODS: Fifty-three patients who had third-degree AVB and significant coronary artery disease were enrolled. Patients with acute coronary syndromes were excluded. Thirty-three (62%) patients were men and the mean age was 65 +/- 10 y. All patients received a permanent dual-mode, dual-pacing, dual-sensing (DDD) pacemaker. Coronary disease was treated medically in 16 (30%) patients due to patient preference or ineligibility. Thirty-seven (70%) patients underwent a revascularization procedure (coronary artery bypass grafting [CABG]: 16, percutaneous coronary intervention [PCI]: 21 pts). Mean follow-up was 36 +/- 6 mo and patients were evaluated every 3 mo according to their resting electrocardiograms (ECGs) at each visit. RESULTS: In the medically treated group, 13 (81%) patients still had third-degree AVBs at the end of the follow-up period, while 3 (19%) patients returned to normal sinus rhythm. On the other hand, 27 out of 37 patients (73%) who were revascularized were still in complete AVB, and 10 patients from this group (27%) had returned to normal sinus rhythm. There was no statistically significant difference between the revascularized and medically treated groups in terms of need for a pacemaker. CONCLUSIONS: Patients who have concomitant severe conduction disturbances and significant coronary disease may well receive a pacemaker before a revascularization procedure. Our data shows that coronary revascularization has little, if any, impact on returning to normal AV conduction.     

Management of Combined Severe Carotid and Coronary Artery Disease

Patients with severe carotid and coronary disease—especially if they require coronary artery bypass grafting (CABG)—are at high risk of cardiac events and stroke. Carotid revascularization should be considered for patients with symptomatic carotid disease and bilateral severe asymptomatic carotid stenosis. In patients with unilateral asymptomatic carotid stenosis, decision to proceed to revascularization should be based more on a perspective of long-term stroke prevention than of perioperative stroke reduction. Compared with endarterectomy, carotid artery stenting is associated with a lower incidence of periprocedural myocardial infarction, an event linked to long-term mortality. This observation may be particularly relevant for patients with advanced coronary artery disease such as those undergoing CABG. Irrespective of the carotid revascularization strategy, a broad disease management approach based on lifestyle modification and pharmacologic cardiovascular prevention is more likely to affect both the quality and duration of life than revascularization itself.     

多支血管病变完全血运重建对冠心病心功能不全患者的影响

目的对比多支冠状动脉病变(多支病变)行经皮冠状动脉介入治疗(PCI)进行完全血运重建和不完全血运重建对患者心功能的影响。方法分析沈阳军区总医院心内科1994年10月至2004年10月完成PCI治疗的多支病变且合并心功能不全患者的临床资料及超声心动图检查结果。结果PCI术后6个月,完全和不完全血运重建组患者心脏超声DE、SV、CO、LVEF、FS、MVCF和E/A均明显改善,MVEF速度加快,EPSS减小。完全血运重建组患者心功能改善优于不完全血运重建组。结论PCI能明显改善多支病变合并心功能不全患者的心功能,但完全血运重建对多支病变患者心功能的改善明显优于不完全血运重建。     

Assessment of Carotid Artery Stenosis and the Use of Statins

General thinking has previously centered on managing carotid artery stenosis (CAS) by carotid endarterectomy and subsequently, stenting for higher risk patients. However for CAS and other forms of vascular disease, especially when asymptomatic, there is new emphasis on defining underlying mechanisms. Knowledge of these mechanisms can lead to medical treatments that result in possible atherosclerotic plaque stabilization, and even plaque regression, including in the patient with CAS. For now, the key medication class for a medical approach are the statins. Their use is supported by good cardiovascular clinical trial evidence including some directed carotid artery studies, especially with a demonstrated decrease in carotid intima-media thickness. Procedural controversy still exists but the current era in medicine offers significant support for medical management of asymptomatic CAS while techniques to recognize the vulnerable plaque evolve. If CAS converts to a symptomatic status, early referral for endarterectomy or stenting is indicated.     

颈动脉超声在筛查颈动脉狭窄及脑卒中高危人群中的应用

目的应用颈动脉超声筛查颈动脉狭窄,并探讨脑卒中高危人群颈动脉狭窄的发病率。方法选择356例患者,以60岁为界分为≤60岁组83例,>60岁组273例,其中高血压196例、冠心病145例、下肢动脉疾病97例、糖尿病134例,采用双功能彩色多普勒行颈动脉超声检查,并分析。结果与≤60岁组比较,>60岁组患者高血压、糖尿病、冠心病和下肢动脉疾病比例明显升高,差异有统计学意义(P<0.05)。颈动脉狭窄≥50%103例,占28.9%,其中颈动脉狭窄≥70%33例,占9.3%。年龄>60岁(OR=2.281,95%CI:1.191～5.673,P=0.013)、冠心病(OR=2.312,95%CI:1.162～4.593,P=0.018)、下肢动脉疾病(OR=2.135,95%CI:1.093～4.985,P=0.011)是颈动脉狭窄的影响因素。结论老年男性、冠心病、下肢动脉疾病人群是颈动脉重度狭窄的主要危险人群,也是颈动脉超声筛查的主要对象。     

Revascularization strategies for patients with stable coronary artery disease

Patients with coronary artery disease who have prognostically significant lesions or symptoms despite optimum medical therapy require mechanical revascularization with coronary artery bypass grafting (CABG), percutaneous coronary intervention (PCI) or both. In this review, we will evaluate the evidence‐based use of the two revascularization approaches in treating patients with coronary artery disease. CABG has been the predominant mode of revascularization for more than half a century and is the preferred strategy for patients with multivessel disease, especially those with diabetes mellitus, left ventricular systolic dysfunction or complex lesions. There have been significant technical and technological advances in PCI over recent years, and this is now the preferred revascularization modality in patients with single‐vessel or low‐risk multivessel disease. Percutaneous coronary intervention can also be considered to treat complex multivessel disease in patients with increased risk of adverse surgical outcomes including frail patients and those with chronic obstructive pulmonary disease. Improvements in both CABG (including total arterial revascularization, off‐pump CABG and ‘no‐touch’ graft harvesting) and PCI (including newer‐generation stents, adjunctive pharmacotherapy and intracoronary imaging) mean that they will continue to challenge each other in the future. A ‘heart team’ approach is strongly recommended to select an evidence‐based, yet individualized, revascularization strategy for all patients with complex coronary artery disease. Finally, optimal medical therapy is important for all patients with coronary artery disease, regardless of the mode of revascularization.     

Hypotension during carotid artery stenting with severe aortic stenosis: the intra-aortic balloon pump option

This case highlights the importance of intra-aortic balloon pump (IABP) during carotid artery stenting (CAS) in patients with severe aortic stenosis. We report the case of a patient with severe carotid artery disease and aortic stenosis who first underwent CAS using IABP and subsequently underwent aortic valve replacement. We conclude that IABP could be helpful in the staged treatment of patients with concomitant severe carotid artery disease and aortic valve disease.     

The cardiovascular risk of patients with carotid artery stenosis

It is commonly accepted that a relationship exists between coronary and carotid arterial disease, given that the prevalence of coronary artery disease (CAD) in patients with carotid stenosis is as high as 77%, depending on the population studied. Elevated cardiovascular (CV) risks are apparent in patients with either asymptomatic or symptomatic carotid stenosis. Patients with asymptomatic carotid stenosis are at about a three-fold higher risk of CV death/myocardial infarction compared with a matched population without carotid stenosis, and this risk may be even higher among patients with symptomatic carotid stenosis. Thus, antiplatelet and lipid-lowering therapies are indicated not only to prevent stroke, but also especially to lower elevated CV risks. Carotid revascularization has become well established in patients with symptomatic carotid stenosis, which is associated with significant absolute risk reductions in terms of recurrent stroke, but remains controversial for patients with significant but asymptomatic carotid stenosis. Carotid revascularization in those with asymptomatic carotid stenosis seems to principally benefit patients with specific clinical/imaging features indicating a high risk of stroke. Screening and treatment of asymptomatic CAD can be beneficial for patients with recently symptomatic carotid stenosis and especially for those for whom surgical or endovascular carotid revascularization is planned. Because evidence of the benefits afforded by prophylactic revascularization of asymptomatic carotid artery stenosis in all CABG candidates (in terms of reducing perioperative stroke) is lacking, it may be reasonable to restrict prophylactic carotid revascularization to patients at the highest risk of postoperative stroke, thus those with severe bilateral lesions or a history of prior stroke/transient ischemic event.     

Anomalous origin of the entire coronary system by three separate ostia within the right coronary sinus �C a rarely observed coronary anomaly

The anomalous origin of the entire coronary system by three separate ostia within the right coronary sinus is a very rare anomaly with only 34 cases reported in the literature to date. A patient with this rare anomaly who developed coronary artery disease, requiring revascularization, is presented. His coronary computed tomography angiography and coronary angiographic findings are discussed. The present case demonstrates the complimentary roles of coronary computed tomography angiography and conventional cardiac catheterization in managing a patient with anomalous coronary arteries and coronary artery disease.     

Carotid Artery Stent Placement Prior to Coronary Angioplasty or Coronary Bypass Graft Surgery

Patients with concomitant carotid and coronary artery disease are at high risk of both cardiac and cerebrovascular complications when they undergo revascularization procedures. The best management strategies for patients with concomitant disease have not been determined for certain. Staged surgical procedures with either coronary artery bypass grafting prior to carotid endarterectomy or vice versa appear to be associated with an increased risk of ischemic complications compared to separate procedures. Until recently, there were no convincing data favoring a simultaneous or combined revascularization approach. Carotid artery stenting has emerged as a treatment option in patients with cerebrovascular disease, even in the presence of a high cardiac risk. Recent results in patients with severe concomitant coronary artery disease are encouraging. This report focuses on the treatment of severe carotid artery stenosis by stent implantation in patients with life-threatening comorbidity to emphasize the possibility of this endovascular approach as an alternative treatment option.     

Prevalence of carotid artery stenosis in Chinese patients with angina pectoris

Background

The prevalence of carotid artery stenosis (CAS) in Chinese patients with angina pectoris is unknown.

Methods

The study population consisted of 989 consecutive patients who were scheduled to undergo nonemergent coronary angiography for suspicion of coronary artery disease (CAD) because of angina pectoris between January 2013 and December 2014. All patients underwent carotid ultrasonography to screen for CAS within one month before or after coronary angiography. We defined cases with 0–50%, 50%–70%, and >70% stenosis as mild, moderate, and severe stenosis, respectively.

Results

CAD was presented in 853 patients (86.2%) of whom 191 patients (19.3%) had 1-vessel disease, 246 patients (24.9%) had 2-vessel disease and 416 patients (42.1%) had 3-vessel disease; left main trunk stenosis present in 137 patients (13.9%). In carotid ultrasonography, the prevalence of mild, moderate, and severe stenosis as well as that of total occlusion of the carotid artery was 54.5%, 13%, 4.7% and 0.8%, respectively. Significant CAS (>50% stenosis and total occlusion) was present in 10.3%, 13.9%, 19.9% and 22.8% of patients with 0-vessel, 1-vessel, 2-vessel and 3-vessel CAD. The severity of CAS was directly correlated (r=0.194, P<0.001) with the extent of CAD. The independent predictors of severe CAS and total carotid artery occlusion were increased age, male sex, hypertension, diabetes mellitus, hyperhomocysteinemia, a previous history of stroke and 3-vessel CAD.

Conclusions

The prevalence of CAS was not rare in China when compared with that in western countries, and the presence of CAS was weakly correlated with the extent of CAD. Screening for CAS should be recommended in Chinese patients with CAD, especially in those with one or more CAS-associated risk factors.     

The adequacy of myocardial revascularization in patients with multivessel coronary artery disease

In patients with multi-vessel coronary artery disease (MVCAD) myocardial revascularization may be accomplished either on all diseased lesions – complete myocardial revascularization – or on selectively targeted coronary segments by percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG). Complete revascularization has a potential long-term prognostic benefit, but is more complex and may increase in-hospital events when compared with incomplete revascularization.