后扩张治疗对老年冠状动脉钙化病变PCI术的疗效和安全性研究

目的观察常规后扩张治疗对老年冠状动脉钙化病变经皮冠状动脉介入治疗（PCI）的疗效和安全性。方法选择血管造影成功的老年钙化病变冠心病患者124例,随机分为后扩张组（治疗组,62例）和常规置入组（对照组,62例）。观察两组术中并发症发生率,住院期间及1年后支架内血栓、再狭窄和主要不良心脏事件（MACE）发生率。结果后扩张组和常规置入组患者PCI中并发症发生率比较差异无统计学意义（6．5％比4．8％,P〉0．05）。1年后的随访结果显示,后扩张组的MACE事件发生率较对照组降低（4．8％比12．9％,P〈0．05）;支架内血栓和支架内再狭窄发生率较常规置人组均明显减少（1．6％比4．8％,4．4％比14．3％）,差异有统计学意义（P〈0．05）。结论在老年冠状动脉钙化病变PCI中常规后扩张治疗安全、有效,能减少术后不良心脏事件从而改善预后。     

并发心房颤动对经皮冠状动脉介入治疗效果的影响

目的:探讨并发心房颤动(房颤)对冠心病患者经皮冠状动脉介入治疗(PCI)近期和远期临床结果的影响。方法:选择接受PCI治疗的冠心病患者3 893例,根据有无房颤分为无房颤组(A组,3 802例)和并发房颤组(B组,91例),分析房颤对冠心病患者PCI术后住院和随访期间不良心脑血管事件(MACCE)的影响。结果:A组与B组院内死亡、心肌梗死、脑卒中和再次血运重建发生率比较,差异无统计学意义;A组、B组随访时间中位数分别为535d、520d,B组MACCE发生率较A组有增高趋势(15.4%∶11.4%),主要为全因死亡率较高(5.7%∶1.7%,P=0.019),心肌梗死、脑卒中和再次血运重建发生率相当。结论:并发房颤的冠心病患者接受PCI术后的远期死亡率明显高于无房颤患者,房颤是预测PCI术后远期死亡率增高的独立危险因素。     

合并结缔组织病的冠心病患者冠状动脉病变特点及冠状动脉介入治疗术预后分析

目的探讨合并结缔组织病(CTD)的冠状动脉性心脏病(CAD)患者的冠状动脉病变特点,以及接受经皮冠状动脉介入治疗术(PCI)的长期预后。方法收集106例自2009年1月至2012年12月在北京友谊医院接受PCI治疗CTD患者的临床资料,回顾性分析CTD患者的临床表现和冠状动脉病变特点等,并对CTD患者进行长期随访。结果 106例患者中有92例(86.8%)具有≥1个传统冠心病危险因素。78例(73.6%)的患者冠状动脉为多支血管病变,以前降支受累为主(65.1%)。共植入5枚金属裸支架和202枚药物涂层支架。对CTD患者进行了平均时间长达3年的随访,期间共发生主要不良心血管事件(MACE)24例(22.6%),其中心源性死亡13例(12.3%)、支架内血栓形成(ST)10例(9.4%)、靶血管再次血运重建(TVR)15例(14.2%)。结论合并CTD的CAD患者冠状动脉病变以多支病变为主。此类患者接受PCI术后不良事件以ST及TVR多见。     

女性冠心病患者冠状动脉介入治疗长期预后

目的:了解女性冠心病患者在接受冠状动脉介入治疗(PCI)后的长期临床疗效.方法:584例经PCI治疗的患者,被分为女性组(122例)和男性组(462例),收集其一般临床资料及PCI治疗情况,并进行长期(3～49个月)临床随访,详细记录患者临床主要不良事件的发生情况.结果:男性患者的全因性死亡率(0:3.03%,P＞0.05)及心因性死亡率(0:2.98%,P＞0.05)有增高趋势,女性患者因心脏病再住院率(15.57%:9.96%,P＜0.05)显著增加,但2组患者其他临床主要不良事件差异无统计学意义.经过校正不匹配因素的偏相关分析显示,男性与心因性死亡(r=0.0874,P＜0.05)及全因性死亡(r=0.0970,P＜0.05)呈正相关.结论:女性患者PCI治疗的长期临床预后良好.     

Comparison of long-term outcome of off-pump coronary artery bypass grafting versus drug-eluting stents in triple-vessel coronary artery disease

After the introduction of drug-eluting stents (DESs), percutaneous coronary intervention with DESs has challenged coronary artery bypass grafting as the gold standard for the treatment of 3-vessel coronary artery disease. The purpose of this study was to compare the long-term clinical results between percutaneous coronary intervention with DESs and off-pump coronary artery bypass grafting (OPCAB) in 3-vessel coronary artery disease. Two hundred ninety propensity-score matched patients with 3-vessel coronary artery disease treated by DESs or OPCAB were included. Mean follow-up duration was 58.8 ± 11.5 months (2 to 73) and follow-up rate was 97.9%. Five-year survival rates were 94.8 ± 2.1% in the DES group and 96.5 ± 1.5% in the OPCAB group (p = 0.658). Five-year rates of freedom from major adverse cardiac and cerebrovascular event were 71.6 ± 4.1% in the DES group and 89.6 ± 2.5% in the OPCAB group (p < 0.001). Freedom from nonfatal myocardial infarction and target vessel revascularization rates were the determining factors between the 2 groups (p = 0.018 and p < 0.001, respectively). The OPCAB group showed better clinical outcomes compared to the DES group in 3-vessel coronary artery disease after 5-year follow-up. Freedom from major adverse cardiac and cerebrovascular event rate was significantly higher in the OPCAB group mainly because of the lower incidence of target vessel revascularization and nonfatal myocardial infarction. Longer follow-up with randomization will clarify our present conclusions.     

63例冠状动脉复杂病变介入治疗的临床分析

目的：探讨经皮冠状动脉介入治疗（PCI）对冠状动脉复杂病变的疗效。方法：回顾性分析3年来对63例冠状动脉复杂病变患者进行介入治疗的成功率、并发症及预后。结果：61例复杂病变（包括慢性闭塞、分叉病变、长病变和再狭窄）病人成功置入支架（96.82%）,无残余狭窄或残余狭窄〈10%。2例病人放置支架后出现侧支血管阻塞,3例出现动脉夹层,2例支架内形成再狭窄。未见其他严重并发症。结论：研究表明,介入治疗对于冠状动脉复杂病变是安全有效的。     

Contrast induced nephropathy after percutaneous coronary intervention： risk factors and preventive strategy

Objective To analyze the risk factors and clinical outcome of contrast induced nephropathy （CIN） in patients with coronary artery disease （CAD） after percutaneous coronary intervention （PCI） and discuss its prevention. Methods Fifty-four patients with C1N among 729 patients who received PCI were retrospectively studied and the related risk factors, cardiovascular events and preventive strategy were analyzed. Results C1N was strongly associated with pre-procedure chronic renal failure, diabetes mellitus and large-dose contrast. The incidence of cardiac mortality and major adverse cardiac events 1 year after PCI in CIN group was higher than that in group without CIN. Conclusion Chronic renal failure, diabetes mellitus and dosage of contrast agent were three independent risk factors of CIN. CIN could affect the patients＇ prognosis. A well overall perioperative management of CAD patients following PCI, especially hydration therapy, is the most important strategy for prevention of CIN.     

Noncardiac surgery following percutaneous coronary intervention.

Patient with coronary artery disease (CAD) undergoing major noncardiac surgery (NCS) are at increased risk of serious perioperative cardiac complications. At the same time, safety of percutaneous coronary intervention (PCI) before noncardiac surgery has been questioned. This paper reviews the available literature regarding the safety of PCI before NCS. At the same time, cardiac evaluation before NCS, perioperative medical management of patients undergoing NCS, and percutaneous coronary intervention and timing of NCS is also discussed.     

Relation of hemoglobin A1c to rate of major adverse cardiac events in nondiabetic patients undergoing percutaneous coronary revascularization

Abnormalities in plasma glucose below the "diabetic range" of glycemia are associated with increased cardiovascular morbidity and mortality in patients without diabetes mellitus. The purpose of this study was to investigate the relation between ambient glycemic levels as measured by hemoglobin A1c and outcome after elective percutaneous coronary intervention (PCI). Baseline laboratory studies, including hemoglobin A1c, were drawn in 500 consecutive patients before elective PCI. Nondiabetic patients were defined as those without a history of diet or pharmacologically controlled diabetes mellitus and a hemoglobin A1c level <7.0%. Of the 500 patients studied, 291 (59%) were nondiabetic patients. Abnormal hemoglobin A1c levels (6% to 7%) were found in 30% of nondiabetic patients. Nondiabetic patients with an abnormal hemoglobin A1c level had a significantly higher rate of major adverse cardiac events (33% vs 22%, p = 0.04), target vessel revascularization (31% vs 19%, p = 0.02), and cardiovascular mortality (4.6% vs 0.5%, p = 0.03) compared with nondiabetic patients with hemoglobin A1c levels <6%. Multivariate analysis disclosed that a hemoglobin A1c level of 6% to 7% was a significant independent predictor of major adverse cardiac events, target vessel revascularization, and cardiovascular mortality 12 months after PCI in nondiabetic patients. These data demonstrate that an abnormal hemoglobin A1c level may have prognostic significance in nondiabetic patients who undergo PCI.     

替罗非班对急性冠脉综合征经皮冠状动脉介入术后无复流现象的影响

目的观察盐酸替罗非班对急性冠脉综合征（ACS）患者经皮冠状动脉介入术（PCI）后无复流现象的影响。方法纳入ACS患者行PCI治疗术后无复流患者72例,随机分为替罗非班组36例和对照组36例。对照组经冠状动脉给予硝普钠0.9μg/kg,替罗非班组经冠状动脉给予盐酸替罗非班负荷剂量10μg/kg,3min内注完,随后以0.15μg/（kg·min）微量泵持续静脉泵入24h。观察两组患者冠脉给药前、给药后20min靶血管前向血流的TIMI血流分级、心电图改变及术后2周内主要不良心脏事件及药物的不良反应。结果冠状动脉内给药20min后造影显示,两组患者梗死相关动脉TIMI血流分级均较给药前有改善,替罗非班组IRA的TIMI血流0级、1级发生率显著低于对照组,TIMI血流3级发生率显著高于对照组,差异均有统计学意义（P〈0.01）;冠状动脉给药2h后与给药前比较,对照组心电图改善不明显,而替罗非班组患者心电图获得显著改善,两组冠脉给药2h后ST抬高及压低程度、缺血损伤导联数差异均有显著统计学意义（P〈0.01）;术后2周内替罗非班组主要不良心脏事件显著低于对照组（P〈0.01）;术后2周内两组不良反应的发生率差异无统计学意义（P〉0.05）。结论经冠状动脉给予盐酸替罗非班治疗可有效地改善ACS患者术后无复流现象,并减少术后2周内主要不良心脏事件。     

急性ST段抬高型心肌梗死经皮冠状动脉介入治疗患者预后与平均血小板体积相关性研究

目的探讨术前平均血小板体积(MPV)与急性ST段抬高型心肌梗死(STEMI)行急诊经皮冠脉介入治疗(PCI)患者预后的关系。方法选择STEMI行急诊PCI患者335例,根据入院时MPV水平分为A组(≤9.9 fl,123例)和B组(MPV>9.9 fl,212例)。对患者进行随访1年,观察主要心脏不良事件(MACE)发生率。根据MACE的发生,分为MACE(+)组和MACE(-)组,对两组数据进行分析。并对各因素采用Logistic回归分析。结果 MACE发生率B组[53例(25.0%)]高于A组[16例(13.0%)](χ2=6.844,P=0.01),主要表现在再发心绞痛[37例(17.4%)比9例(7.3%),χ2=6.751,P<0.01]和再次住院[40例(18.7%)比12例(9.7%),χ2=4.928,P=0.03]。MACE(+)组中MPV>9.9 fl病例比例高于MACE(-)组[54例(78.2%)比165例(62%),χ2=6.376,P=0.02]。多因素Logistic回归分析示MPV>9.9 fl(OR:2.05,P=0.03),提示MPV>9.9 fl与STEMI行急诊PCI患者1年预后相关。结论术前MPV>9.9 fl是预测STEMI行急诊PCI患者1年MACE的独立危险因素。     

Comparative outcomes of percutaneous coronary interventions in diabetics vs non-diabetics with prior coronary artery bypass grafting.

AIMS: To determine the influence of diabetes on outcome after percutaneous coronary intervention in patients with prior coronary artery bypass grafting. METHODS AND RESULTS: Patients with prior coronary artery bypass grafting undergoing percutaneous coronary intervention from 1 January 1996, to 31 August 2000, were divided into two groups based on whether or not they had diabetes, excluding patients with acute infarction or shock. Cox proportional hazards models were utilized to estimate the association between diabetes and adverse events. One thousand one hundred and fifty-three post-coronary artery bypass grafting percutaneous coronary intervention patients were identified (326 diabetics and 827 non-diabetics). Diabetics were younger, more likely to have hypertension, heart failure, and lower ejection fraction. Procedural characteristics and angiographic and procedural success rates were similar. Diabetes was associated with increased mortality (hazard ratio 1.58, 95% confidence intervals 1.10-2.27). Diabetes did not have a significant effect on mortality in patients treated for single-territory coronary disease (hazard ratio 1.44, 95% confidence intervals 0.69-3.02), but did in patients with multi-territory disease (hazard ratio 1.79, 95% confidence intervals 1.16-2.76). However, in diabetics with multi-territory disease who were completely revascularized with percutaneous coronary intervention, mortality was comparable to non-diabetics (hazard ratio 1.32, 95% confidence intervals 0.57-3.03). CONCLUSION: Among percutaneous coronary intervention patients with prior coronary artery bypass grafting, diabetes portends an adverse prognosis.     

SYNTAX积分对经皮冠状动脉介入治疗的临床疗效与预测作用研究

目的:研究SYNTAX积分、临床SYNTAX积分及Global Risk Classification(GRC)对左主干/3支病变的冠心病患者,经皮冠状动脉介入治疗术后临床的预测作用,并评价三种积分系统的预测价值。方法:回顾性分析自2007年1月31日至2008年12月31日,北京安贞医院心内科经皮冠状动脉介入治疗术(percutaneous coronary intervention,PCI)置入Cypher select药物洗脱支架的左主干/3支病变的冠心病患者共190例。根据冠状动脉造影结果计算三种积分系统,并根据3分位数值分别分为低分、中分及高分组。通过门诊或电话随访PCI术后患者的主要不良心脑血管事件(major adverse cardiac and cerebrovascular events,MACCE),包括死亡、非致命性心肌梗死、再次血运重建、脑血管事件发生率。分别评价三种积分系统对患者术后临床预后的预测作用,评价三者的预测能力。结果:190例患者中,失访10例,失访率5.3%,随访中位数为29.4个月,29例观察到MACCE,MACCE发生率18.5%。SYNTAX积分低分(≤20.5)、中分(21.0~31.0)及高分组(≥31.5)的主要MACCE发生率分别为9.1%、16.2%及30.9%。临床SYNTAX评分低分(≤19.5)、中分(19.6~29.1)及高分组(≥29.2)的主要MACCE率分别为14.9%、9.8%及30.6%。GRC低、中、高分组的MACCE发生率分别为17.8%、14.2%及46.1%,单因素及多因素分析结果均显示三种积分系统是MACCE的独立预测因子。ROC曲线分析结果 SYNTAX积分AUC=0.667(95%CI=0.564~0.770,P=0.004),临床SYNTAX积分AUC=0.636(95%CI=0.519~0.753,P=0.020),GRC预测PCI术后MACCE的能力(AUROC=0.617,95%CI=0.512~0.736,P=0.046),三者都显示对MACCE有预测价值。结论:三种积分系统对冠状动脉左主干/3支病变患者行PCI治疗后的MACCE均有预测作用,可作为MACCE的独立预测因子。     

肾动脉狭窄并冠状动脉多支病变患者部分或完全冠状动脉血运重建对比分析

目的 探讨在肾动脉狭窄合并冠状动脉粥样硬化性心脏病（冠心病）的患者中进行冠状动脉介入治疗时,选择部分或完全冠状动脉血运重建方法的临床效果差异.方法 收集2006年1月至2011年1月在广东省人民医院进行肾动脉及冠状动脉介入治疗的肾动脉狭窄合并冠心病患者共287例,其中177例进行了冠状动脉完全血运重建（complete revascularization,CR）,110例为部分冠状动脉血运重建（incomplete revascularization,ICR）.然后进行术后2年的随访调查,比较两种介入治疗策略的临床疗效以及其远期预后的差异.结果 两种治疗策略的整体住院病死率比较,差异无统计学意义（Х^2=0.474,P=0.491）.术后CR组的收缩压及舒张压较基线降低,差异有统计学意义（P均＜0.01）;而ICR组收缩压及舒张压与基线相比,差异无统计学意义（P＞0.05）.两组术前和术后肾功能、心功能改善的情况及住院时间比较,差异无统计学意义（P均＞0.05）.两组2年随访病死率及主要心血管事件发生率比较,差异无统计学意义（P均＞0.05）.结论 肾动脉狭窄患者在进行肾动脉及冠状动脉介入治疗时,进行冠状动脉完全血运重建和部分冠状动脉血运重建术效果相近,但完全血运重建有助于血压的控制.     

SYNTAX积分对冠心病经皮冠状动脉介入治疗效果的预测

目的 研究SYNTAX积分对复杂冠心病患者经皮冠状动脉(冠脉)介入治疗术(PCI)效果预测作用.方法 回顾性分析PCI置入雷帕霉素药物洗脱支架左主干/3支病变的冠心病患者共190例,计算SYNTAX积分及临床SYNTAX积分,随访其主要不良心脑血管事件(MACCE),包括死亡、非致命性心肌梗死、再次血运重建、脑血管事件发生率.分别评价SYNTAX积分及临床SYNTAX 积分对PCI效果的预测作用.结果 SYNTAX积分低、中及高分组的MACCE率分别为9.1％、16.2％及30.9％.临床SYNTAX评分低、中及高分组的MACCE率分别为14.9％、9.8％及30.6％,单因素及多因素分析结果均显示SYNTAX积分及临床SYNTAX积分是MACCE的独立预测因子.ROC 曲线分析结果SYNTAX积分AUC (0.667)大于临床SYNTAX积分AUC (0.636).结论 SYNTAX积分及临床SYNTAX积分对冠脉左主干/3支病变患者行PCI治疗后是否发生MACCE均有预测作用,在这一组人群中临床SYNTAX积分不优于SYNTAX积分.     

Predictors of long-term outcome following percutaneous coronary intervention in patients with type 2 diabetes mellitus

OBJECTIVES: Diabetes has a major impact on the long-term outcome following percutaneous coronary intervention, being a major risk factor for restenosis. We aimed at assessing the clinical, hemodynamic and angiographic factors that predict outcome in this high-risk group. METHODS: Diabetic patients who underwent percutaneous coronary intervention during the period 1996-2000 were identified retrospectively, and their medical records, hemodynamic data and angiograms studied at the time of their procedure. Angiographic data were analyzed to determine procedural factors, quantitative angiographic results of their percutaneous coronary intervention and severity and extent scores of coronary artery disease. Clinical follow-up was obtained in 99.7% to a mean time of 782+/-153 days after percutaneous coronary intervention. RESULTS: A total of 327 consecutive diabetic patients underwent percutaneous coronary intervention on 389 lesions. The overall procedural success rate was 96.2%; however, during follow-up, 40.2% of patients had an adverse cardiac event. The strongest independent predictors of adverse outcome were presence of renal disease, need for medical diabetic treatment, and the extent of coronary artery disease as assessed by the extent score, but not the duration of diabetes or glycemic control. Other factors, which are often predictive of short-term outcome in a general population, such as vessel diameter, lesion length, and severity of coronary artery disease, were not predictive of outcome. CONCLUSIONS: In patients with type 2 diabetes mellitus, the extent of the coronary arteries involved with atheroma as well as systemic factors such as renal involvement are the best predictors of long-term outcome following percutaneous coronary intervention.     

Biodegradable-Polymer Biolimus-Eluting Stents versus Durable-Polymer Everolimus-Eluting Stents at One-Year Follow-Up: A Registry-Based Cohort Study

We compared outcomes of percutaneous coronary intervention patients who received biodegradable-polymer biolimus-eluting stents with those who received durable-polymer everolimus-eluting stents.At Tehran Heart Center, we performed a retrospective analysis of the data from January 2007 through December 2011 on 3,270 consecutive patients with coronary artery disease who underwent percutaneous coronary intervention with the biodegradable-polymer biolimus-eluting stent or the durable-polymer everolimus-eluting stent. We excluded patients with histories of coronary artery bypass grafting or percutaneous coronary intervention, acute ST-segment-elevation myocardial infarction, or the implantation of 2 different stent types. Patients were monitored for 12 months. The primary endpoint was a major adverse cardiac event, defined as a composite of death, nonfatal myocardial infarction, and target-vessel and target-lesion revascularization.Durable-polymer everolimus-eluting stents were implanted in 2,648 (81%) and biodegradable-polymer biolimus-eluting stents in 622 (19%) of the study population. There was no significant difference between the 2 groups (2.7% vs 2.7%; P=0.984) in the incidence of major adverse cardiac events. The cumulative adjusted probability of major adverse cardiac events in the biodegradable-polymer biolimus-eluting stent group did not differ from that of such events in the durable-polymer everolimus-eluting stent group (hazard ratio=0.768; 95% confidence interval, 0.421–1.44; P=0.388).We conclude that in our patients the biodegradable-polymer biolimus-eluting stent was as effective and safe, during the 12-month follow-up period, as was the durable-polymer everolimus-eluting stent.     

SYNTAX积分预测冠心病复杂病变患者经皮冠状动脉介入治疗预后的作用

目的评价SYNTAX积分对冠心病3支病变和(或)左主干病变患者PCI预后的作用。方法经冠状动脉造影证实的3支病变和(或)左主干病变并接受PCI的患者1 90例。对每例患者造影结果进行SYNTAX评分,SYNTAX评分按三分位数分为:低分组、中分组和高分组,通过门诊或电话随访患者主要不良心脑血管事件(MACCE)。结果经PCI的冠心病3支病变和(或)左主干病变190例患者中,29例出现MACCE,发生率为15.3%。SYNTAX积分低分组、中分组及高分组的MACCE发生率分别为9.1%、1 6.2%及30.9%。Cox多因素分析显示,SYNTAX积分HR=2.07,95%CI:1.25～3.44,差异有统计学意义(P=0.005)。结论 SYNTAX积分是预测PCI预后的较理想工具,该积分系统也适用于我国冠心病3支病变和(或)左主干病变患者PCI术后预后的预测。     

High-risk diabetic patients with unprotected left main coronary artery disease: characteristics and medium-term outcomes of percutaneous revascularization with drug-eluting stents

Percutaneous coronary intervention with drug-eluting stents is an alternative for patients with high-risk unprotected left main coronary artery disease; those with diabetes mellitus are at even higher risk. Recent advances in percutaneous coronary intervention could lead to better results. The aim of this study was to evaluate medium-term results in a real-world sample of high-risk diabetic patients undergoing percutaneous coronary intervention with drug-eluting stents for unprotected left main coronary artery disease.From 3 tertiary hospitals, we retrospectively identified 334 high-risk patients, of whom 141 (42%) were diabetic and 193 (58%) were nondiabetic. The diabetes mellitus group showed a higher prevalence of peripheral vascular disease and left ventricular dysfunction. Angiographic and procedural characteristics did not differ significantly, with the exception of poor distal vessels in the diabetes mellitus group (44.5% vs 28.5%, P = 0.006). The use of intra-aortic balloon pumping and intravascular ultrasonography was low in both diabetic and nondiabetic patients. After a median follow-up of 22.4 months, cardiac death was higher in the diabetes mellitus group (16.2% vs 7.5%, P = 0.015), especially in insulin-dependent diabetic patients (25.8%). The incidence of major adverse cardiac events, including cardiac death, target-lesion revascularization, and myocardial infarction was similar in both groups (23.8% vs 18.3%, P = NS).High-risk diabetic patients who undergo percutaneous coronary intervention with drug-eluting stents for unprotected left main coronary artery disease present with a worse clinical profile that carries a higher cardiac mortality rate in the medium term, especially in insulin-dependent diabetic patients.     

5F指引导管在冠心病经桡动脉介入治疗中的应用

目的：评价冠心病患者经桡动脉介入治疗中使用5F指引导管的可行性和安全性。方法：102例经桡动脉介入治疗的冠心病患者,按指引导管大小随机分为A组（6F指引导管,n=54）和B组（5F指引导管,n=48）,比较两组的手术成功率、穿刺部位相关并发症及住院期间心血管不良事件发生率。结果：A组的穿刺部位并发症高于B组（P〈0．01）,手术成功率及住院期间不良事件发生率两组无明显差别（P〉0．05）。结论：5F指引导管在冠心病经桡动脉介入治疗中减少穿刺部位相关并发症。是安全可行的。