Safety and efficacy of dual antiplatelet therapy after percutaneous coronary interventions in patients with end-stage liver disease

The prevalence of coronary artery disease(CAD)increases in patients with endstage liver disease,with part of them receiving the percutaneous coronary intervention(PCI)as a treatment option.Dual antiplatelet therapy(DAPT),a standard of care after PCI,could result in catastrophic consequences in this population.Before PCI and the start of DAPT,it is recommended to assess patient bleeding risk.Based on novel findings,liver cirrhosis does not necessarily lead to a significant increase in bleeding complications.Furthermore,conventional methods,such as the international normalized ratio,might not be appropriate in assessing individual bleeding risk.The highest bleeding risk among cirrhotic patients has a subgroup with severe thrombocytopenia(<50×10^(9)/L)and elevated portal pressure.Therefore,every effort should be made to maintain thrombocyte count above>50×10^(9)/L and prevent variceal bleeding.There is no solid evidence for DAPT in patients with cirrhosis.However,randomized trials investigating short(one month)DAPT duration after PCI with new drug-eluting stents(DES)in a high bleeding risk patient population can be implemented in patients with cirrhosis.Based on retrospective studies(with older stents and protocols),PCI and DAPT appear to be safe but with a higher risk of bleeding complications with longer DAPT usage.Finally,novel methods in assessing CAD severity should be performed to avoid unnecessary PCI and potential risks associated with DAPT.When indicated,PCI should be performed over radial artery using contemporary DES.Complementary medical therapy,such as proton pump inhibitors and beta-blockers,should be prescribed for lower bleeding risk patients.Novel approaches,such as thromboelastography and“preventive”upper endoscopies in PCI circumstances,warn clinical confirmation.

Heart failure after myocardial infarction in the era of primary percutaneous coronary intervention:Mechanisms,incidence and identification of patients at risk

Myocardial infarction(MI) remains the most common cause of heart failure(HF) worldwide. For almost 50 years HF has been recognised as a determinant ofadverse prognosis after MI, but efforts to promote myocardial repair have failed to translate into clinical therapies. Primary percutaneous coronary intervention(PPCI) has driven improved early survival after MI, but its impact on the incidence of downstream HF is debated. The effects of PPCI are confounded by the changing epidemiology of MI and HF, with an ageing patient demographic, an increasing proportion of non-STelevation myocardial infarction, and the recognition of HF with preserved ejection fraction. Herein we review the mechanisms of HF after MI and discuss contemporary data on its incidence and outcomes. We review current and emerging strategies for early detection of patients at risk of HF after MI, with a view to identification of patient cohorts for novel therapeutic agents.

Rationale and Role of High Loading Dose Clopidogrel in Patients with Acute Coronary Syndrome Undergoing Percutaneous Coronary Intervention

Antiplatelet therapy, which reduces platelet activation and aggregation, is the corner stone of treatment for patients undergoing percutaneous coronary intervention (PCI). Clopidogrel is an established oral antiplatelet medication of thienopyridine class, which inhibits blood clots in coronary artery disease, peripheral vascular disease, and cerebrovascular disease. Many studies have revealed that high loading dose clopidogrel in patients undergoing PCI. This review article investigates the rationale and role of high loading dose clopidogrel in patients undergoing PCI.

Shortened dual antiplatelet therapy in contemporary percutaneous coronary intervention era

Percutaneous coronary intervention with stenting is followed by a duration of dual antiplatelet therapy(DAPT)to reduce stent thrombosis and avoid target lesion failure.The period of DAPT recommended in international guidelines following drug-eluting stent implantation is 12 mo for most patients with acute coronary syndrome,and 6 mo for patients with chronic coronary syndrome or high bleeding risk.The new generation of drug-eluting stents have metallic platforms with thinner struts,associated with significantly less stent thrombosis.Shortened DAPT has been investigated with these stents,with evidence from randomised clinical trials for some individual stents showing non-inferior safety and efficacy outcomes.This has to be balanced by the effect of DAPT on secondary prevention of systemic cardiovascular disease especially in high-risk populations.This review will outline the current evidence for individual stents with regards to DAPT duration for both acute coronary syndrome and chronic coronary syndrome and discuss further directions for research and personalised medicine in this contemporary percutaneous coronary intervention era.

Prognostic Analysis and an Appropriate Antiplatelet Strategy for Patients With Percutaneous Coronary Intervention and High Bleeding Risk:Rationale and Protocol for a MultiCenter Cohort Study

Percutaneous coronary intervention(PCI)is an important treatment strategy for patients with coronary artery disease.However,bleeding after PCI significantly increases the mortality risk.The search for prognostic predictors and optimal antiplatelet therapy for patients with high bleeding risk(HBR)after PCI has been a much researched upon topic in current cardiovascular research.However,there is no widely accepted prognostic model or recommended antiplatelet therapy for patients with PCI-HBR.In this trial,based on prospective multi-center database building,we will analyze the adverse prognostic predictors for patients with PCI-HBR,observe the types of antiplatelet drugs and duration of dual antiplatelet therapy in PCI-HBR patients,and compare the safety and feasibility of different antiplatelet regimens and treatment courses.The prognostic analysis and an appropriate antiplatelet strategy for patients with PCI and high bleeding risk(PPP-PCI)trial will help analyze bleeding risk factors in PCI-HBR patients and explore the appropriate antiplatelet treatment options.This study is registered with ClinicalTrials.gov(NCT05369442).The Research Ethics Committee of West China Hospital authorized this study(2022 Review#269).The trial results will be published in peer-reviewed journals and at conferences.

Coronary thrombus in patients undergoing primary PCI for STEMI:Prognostic significance and management

Acute ST-elevation myocardial infarction(STEMI) usually results from coronary atherosclerotic plaque disruption with superimposed thrombus formation. Detection of coronary thrombi is a poor prognostic indicator,which is mostly proportional to their size and composition. Particularly,intracoronary thrombi impair both epicardial blood flow and myocardial perfusion,by occluding major coronary arteries and causing distal embolization,respectively. Thus,although primary percutaneous coronary intervention is the preferred treatement strategy in STEMI setting,the associated use of adjunctive antithrombotic drugs and/or percutaneous thrombectomy is crucial to optimize therapy of STEMI patients,by improving either angiographical and clinical outcomes. This review article will focus on the prognostic significance of intracoronary thrombi and on current antithrombotic pharmacological and interventional strategies used inthe setting of STEMI to manage thrombotic lesions.

Cutting-balloon angioplasty before drug-eluting stent implantation for the treatment of severely calcified coronary lesions

Background Severely calcified coronary lesions respond poorly to balloon angioplasty, resulting in incomplete and asymmetrical stent expansion. Therefore, adequate plaque modification prior to drug-eluting stent （DES） implantation is the key for calcified lesion treat- ment. This study was to evaluate the safety and efficacy of cutting balloon angioplasty for severely calcified coronary lesions. Methods Ninety-two consecutive patients with severely calcified lesions （defined as calcium arc 〉 180% calcium length ratio 〉 0.5） treated with bal- loon dilatation before DES implantation were randomly divided into two groups based on the balloon type： 45 patients in the conventional balloon angioplasty （BA） group and 47 patients in the cutting balloon angioplasty （CB） group. Seven cases in BA group did not satisfactorily achieve dilatation and were transferred into the CB group. Intravascular ultrasound （IVUS） was performed before balloon dilatation and after stent implantation to obtain qualitative and quantitative lesion characteristics and evaluate the stent, including minimum lumen cross-sectional area （CSA）, calcified arc and length, minimum stent CSA, stent apposition, stent symmetry, stent expansion, vessel dissection, and branch vessel jail. In-hospital, 1-month, and 6-month major adverse cardiac events （MACE） were reported. Results There were no statistical differences in clinical characteristics between the two groups, including calcium arc （222.2° ± 22.2° vs. 235.0° ± 22.1 °, p=0.570）, calcium length ratio （0.67 ± 0.06 vs. 0.77± 0.05, P = 0.130）, and minimum lumen CSA before PCI （2.59 ±0.08 mm2 vs. 2.52 ± 0.08 mm2, P = 0.550）. After stent implantation, the final minimum stent CSA （6.26 ± 0.40 mm2 vs. 5.03 ± 0.33 mm2; P = 0.031） and acute lumen gain （3.74 ±0.38 mm2 w. 2.44 ± 0.29 mm2, P = 0.015） were significantly larger ila the CB group than that of the BA group. There were not statis tically differences in stent expansion, stent symmetry, incomplete stent apposition, vessel dissection and branch vessel jail between two groups. The 30-day and 6-month MACE rates were also not different. Conclusions Cutting balloon angioplasty before DES implantation in severely calcified lesions appears to be more efficacies including significantly larger final stent CSA and larger acute lumen gain, without increasing complications during operations and the MACE rate in 6-month.

Timely reperfusion for ST-segment elevation myocardial infarction:Effect of direct transfer to primary angioplasty on time delays and clinical outcomes

Primary percutaneous coronary intervention(PPCI) is the preferred reperfusion therapy for patients presenting with ST-segment elevation myocardial infarction(STEMI) when it can be performed expeditiously and by experienced operators. In spite of excellent clinical results this technique is associated with longer delays than thrombolysis and this fact may nullify the benefit of selecting this therapeutic option. Several strategies have been proposed to decrease the temporal delays to deliver PPCI. Among them,prehospital diagnosis and direct transfer to the cath lab,by-passing the emergency department of hospitals,has emerged as anattractive way of diminishing delays. The purpose of this review is to address the effect of direct transfer on time delays and clinical events of patients with STEMI treated by PPCI.

Successful opening in-stent chronic total occlusion lesion of coronary artery by excimer laser coronary angioplasty

In percutaneous coronary intervention (PCI), chronic total occlusion (CTO) coronary artery disease still remains difficult to treat. One of the reasons for the failure is the hard of the CTO lesions that balloon is difficult to pass through or expand. Previous methods to deal with CTO lesions that cannot be passed by balloon, include selecting reinforced catheter (such as 5 in 6 guiding catheter, Guidzilla catheter, or Tornus microcatheter), guidewire extrusion or rotary grinding technology. In recent years, excimer laser coronary angioplasty (ELCA) has been gradually applied to CTO lesions. Using inert halide as the laser medium, ELCA emits a 308 nm high-intensity unidirectional light wave with absorption depth of only 50 μmL, resulting in less thermal effect and less damage to non-target lesions. In this paper, we will describe a successful PCI case of an in-stent CTO lesion using ELCA with long term coronary angiography follow-up.

Percutaneous coronary intervention for acute myocardial infarction in a patient with dextrocardia

Situs inversus with dextrocardia is a rare congenital anomaly.There are limited published case reports of successful percutaneous coronary intervention(PCI) in these patients who have atherosclerotic coronary artery disease,especially when presenting with acute myocardial infarction.PCI is technically difficult be-cause of mirror image dextrocardia.We hereby de-scribe a 48-yr-old female,who had acute inferior wall myocardial infarction and underwent successful emer-gency primary coronary angioplasty and stenting of a proximally occluded right coronary artery.Technical details about PCI are discussed.

Percutaneous coronary Intervention for ostial occlusion lesion of an anomalous right coronary artery

Ostial lesions present many challenges for percutaneous coronary intervention （PCI）. Coronary anomaly will further increase difficulties in performing PCI for the patient. We present such a case as ostial occlusion of an right coronary artery with high takeoff. A 77-year-old male was referred to our institution with a diagnosis of non-ST elevated acute myocardial infarction. Selective coronary angiography and nonselective ascending aortography could not identify the origin of the right coronary artery. Multi-slices computed tomography showed RCA ostial totally occluded. A successful PCI was performed and a perfect final result was achieved utilized with many tips and tricks, including buddy wtre technique and focused-force angloplasty（J Genatr Cardio12009, 6：189-192）.

Efficacy of Short-term Dual Antiplatelet Therapy after Implantation of Second-generation Drug-eluting Stents:A Meta-analysis and Systematic Review

Objective The benefit of short-term dual antiplatelet therapy(DAPT) following second-generation drug-eluting stents implantation has not been systematically evaluated. To bridge the knowledge gap,we did a meta-analysis to assess the efficacy of ≤6 months versus ≥12 months DAPT among patients with second-generation drug-eluting stents. Methods We searched online databases and identified randomized controlled trials that assess the clinical impact of short-term DAPT(≤6 months) published before March 3,2016. The efficacy endpoints included the incidence of all-cause death,myocardial infarction,cerebrovascular accidents,and definite or probable stent thrombosis. Safety endpoint defined as major bleeding was also evaluated and discussed. Results We included 5 trials that randomized 9473 participants(49.8%,short-term DAPT duration vs. 50.2%,standard duration). A total of 9445(99.7%) patients reported the efficacy endpoints,and the safety endpoint was available from 4 studies(n=8457). There was no significant difference in efficacy endpoints between short-term and standard DAPT duration(≥12 months) [risk ratio(RR) 0.96; 95% confidence intervals(CI),0.80-1.15]. Short-term DAPT duration did not significantly increase the individual risk of all-cause death,myocardial infarction,cerebrovascular accidents,or definite or probable stent thrombosis. Although short-term DAPT obviously reduced risk of major bleeding compared with standard DAPT(RR 0.53; 95% CI,0.29-0.96),significant publication bias was found when accessing the safety endpoint of the 4 studies(Egger's test,P=0.009). Conclusions The efficacy of short-term DAPT was comparable with that of standard duration DAPT.DAPT less than 6 months may be appropriate for patients receiving second-generation drug-eluting stents implantation.

Adequate antiplatelet regimen in patients on chronic anti-vitamin K treatment undergoing percutaneous coronary intervention

AIM: To investigate the impact of dual antiplatelet therapy (DAT) in patients on antivitamin K (AVK) regimen requiring percutaneous coronary intervention (PCI).METHODS: Between February 2006 and February 2008, 138 consecutive patients under chronic AVK treatment were enrolled in this registry. Of them, 122 received bare metal stent implantation and 16 received drug elutingstent implantation. The duration of DAT, on top of AVK treatment, was decided at the discretion of the clinician. Adequate duration of DAT was def ined according to type of stent implanted and to its clinical indication. RESULTS: The baseline clinical characteristics of patients reflect their high risk, with high incidence of comorbid conditions (Charlson score ≥ 3 in 89% of the patients). At a mean follow-up of 17 ± 11 mo, 22.9% of patients developed a major adverse cardiac event (MACE): 12.6% died from cardiovascular disease and almost 6% had an acute myocardial infarction. Major hemorrhagic events were observed in 7.4%. Adequate DAT was obtained in only 44% of patients. In the multivariate analysis, no adequate DAT and Charlson score were the only independent predictors of MACE (both P = 0.02). CONCLUSION: Patients on chronic AVK therapy represent a high risk population and suffer from a high MACE rate after PCI. An adequate DAT regimen and absence of comorbid conditions are strongly associated with better clinical outcomes.

Comparative Nursing Study of Patients Undergoing Coronary Intervention Therapy in Different Ways

Purpose: To compare the surgical indicators, perioperative complications and postoperative psychological status of patients with coronary interventional therapy (CIT) by radical artery and femoral artery puncture approaches. Methods: 120 patients with CIT were divided into femoral artery group (FAG) and radial artery group (RAG) according to the operation ways. The interventional operation was performed by the same surgeon team and methods. Data of surgical indicators and perioperative complications were recorded and collected. The psychological questionare survey was made within 48 hours the after surgery by the hospital anxiety and depression scale (HAD), and the results were scored by the psychiatrist. Results: The age, sex, ethnicity, education level, disease type, and combined diseases of the two groups had homogeneity without statistical difference. There was no obvious difference in X-ray exposure time, contrast agent usage and operation time in two ways (P > 0.05). The success rate of one-time catheterization was higher in FAG than in RAG (P Conclusion: CIT via radial artery can reduce the incidence of postoperative complications, postoperative physical discomfort and psychological problems such as anxiety and depression of patients.

Day-to-day blood pressure variability predicts poor outcomes following percutaneous coronary intervention:A retrospective study

BACKGROUND For patients with cardiovascular disease,blood pressure variability(BPV),distinct from hypertension,is an important determinant of adverse cardiac events.Whether pre-operative BPV adversely affects outcomes after percutaneous coronary intervention(PCI)is to this point unclear.AIM To investigate the relationship between blood pressure variability and outcomes for patients post-PCI.METHODS Patients undergoing PCI in a single state in 2017 were studied(n=647).Systolic and diastolic BPV,defined as both the largest change and standard deviation for the 3-60 mo prior to PCI was calculated and patients with more than ten blood pressure measurements in that time were included for analysis(n=471).Adverse outcomes were identified up to a year following the procedure,including major adverse cardiac events(MACE),myocardial infarction,cerebrovascular accident,death,and all-cause hospitalization.RESULTS Visit-to-visit systolic BPV,as measured by both standard deviation and largest change,was higher in patients who had myocardial infarction,were readmitted,or died within one year following PCI.Systolic BPV,as measured by largest change or standard deviation,was higher in patients who had MACE,or readmissions(P<0.05).Diastolic BPV,as measured by largest change,was higher in patients with MACE and readmissions(P<0.05).CONCLUSION As BPV is easily measured and captured in the electronic medical record,these findings describe a novel method of identifying at-risk patients who undergo PCI.Aggressive risk modification for patients with elevated BPV and known coronary artery disease is indicated.

Direct Coronary Intervention Therapy in Patients with Acute Myocardial Infarction

Objective To introduce the initial experience of direct percutaneous transluminal coronary angioplasty(PTCA) and intracoronary stenting in patients with acute myocardial infarction(AMI) from October 1998 to November 2001 in our hospital. Methods Primary PTCA was performed in 38 patients with acute myocardial infarction.29 cases were 20 male and 9 female, ranging in age from 30 to 76 old years.23 cases had anterior and 15 had inferior wall infarction. The patients we chose for direct coronary intervention therapy had stable hemodynamics. Of the 38 infarct related arteries (IRA), 23 were left anterior descend arteries (LAD), 4 left circumflex (LCX) and 11 right coronary arteries (RCA). 33 IRA were TIMI 0 flow and 5 TIMI 1 flow. The indications for coronary stent implantation were: ① Acute reocclusion and high risk of reocclusion due to initial dissection after PTCA; ② Severe residual stenosis (stenosis of diameter≥50%) after repeated balloon dilation; ③ No response to recurrent infusions of Nitroglycerin in Obviously elastic recoil. Results Of the 38 patients with AMI, PTCA was successful in 35 Two patients were given up because 014 guide wire entered into false lumen. One was selected for emergency coronary artery bypass graft because of LAD infarct related artery accompanied by 70%stenosis of left main. 35 intracoronary stents were implanted.16 patients were followed up, of whom 2 patients had restenosis and were successful in the second attempt. Conclusion Direct PTCA and stent implantation are effective and safe means of treatment for AMI and stent implantation can prevent and cure the acute reocclusion after PTCA.

血府逐瘀汤对STEMI病人PCI术后炎症指标、再灌注后心功能及生存质量的影响

目的:探讨血府逐瘀汤对ST段抬高型心肌梗死(STEMI)病人经皮冠状动脉介入治疗(PCI)术后炎症指标及再灌注后心功能及生存质量的影响。方法:选取2020年1月1日—2021年12月31日于我院接受PCI治疗的STEMI病人244例作为研究对象,采用计算机随机化法分为研究组和对照组,每组122例。研究组给予血府逐瘀汤+PCI术后常规基础治疗,对照组给予PCI术后常规基础治疗,两组病人均随访6个月。对比两组主要心脑血管不良事件(MACCE)发生情况、心肌梗死多维度量表(MIDAS)评分、美国纽约心脏协会(NYHA)心功能分级、不良反应发生情况、中医临床症状积分、中医证候疗效、左心室重构情况及炎性因子[白细胞介素-6(IL-6)、内皮素-1(ET-1)、一氧化氮(NO)以及基质金属蛋白酶-9(MMP-9)]水平。结果:研究组MACCE总发生率低于对照组,NYHA心功能分级改善情况优于对照组,中医证候疗效优于对照组(P<0.05)。治疗后,两组MIDAS评分均较治疗前降低,且研究组低于对照组(P<0.05)。治疗后,两组中医临床症状积分均较治疗前下降,且研究组低于对照组(P<0.05)。治疗后,两组左室收缩末期内径(LVESD)、左室舒张末期内径(LVEDD)降低,左室射血分数(LVEF)升高,且研究组LVESD、LVEDD低于对照组,LVEF高于对照组(P<0.05)。治疗后,两组IL-6、ET-1、MMP-9降低,NO升高,且研究组IL-6、ET-1、MMP-9低于对照组,NO高于对照组(P<0.05)。结论:血府逐瘀汤应用于STEMI病人PCI术后能显著提高病人的整体生存质量,降低MACCE发生风险,改善心功能,减轻炎症反应,有利于病人预后。

基于中医情志护理的健康宣教结合五音疗法对冠心病经皮冠状动脉介入术术后患者焦虑抑郁及睡眠质量的影响

目的观察基于中医情志护理的健康宣教结合五音疗法对冠心病经皮冠状动脉介入术(PCI)术后患者焦虑抑郁及睡眠质量的影响。方法选择2022年1月至2023年8月赣南医学院第一附属医院收治的60例行PCI的冠心病患者为研究对象,按照随机数字表法将其分为对照组(30例)、观察组(30例),对照组采用常规护理,观察组采用基于中医情志护理的健康宣教结合五音疗法护理。比较两组患者的睡眠质量、焦虑和抑郁情绪、健康行为、中医证候积分情况。结果观察组护理后的Spiegel睡眠量表评分低于对照组,差异有统计学意义(P<0.05)。观察组护理后的焦虑自评量表(SAS)、抑郁自评量表(SDS)评分均低于对照组,差异有统计学意义(P<0.05)。观察组护理后的健康行为评分高于对照组,差异有统计学意义(P<0.05)。观察组护理后的心胸疼痛、胸闷、心悸、气短、心中烦躁、夜寐不安、精神不振评分均低于对照组,差异有统计学意义(P<0.05)。结论冠心病PCI术后给予患者基于中医情志护理的健康宣教结合五音疗法,可明显改善患者睡眠质量、心理状态,缓解患者心胸疼痛、胸闷、心悸等症状,改善患者健康行为,可广泛应用。

有高血压脑出血史的患者冠状动脉介入术标准双抗治疗预后影响因素分析

目的:心脏支架置入术后要求使用双重抗血小板治疗(dual antiplatelet therapy DAPT),而脑出血后使用抗血小板治疗仍然存在争议。本研究旨在评估有高血压脑出血病史者,对使用双重抗血小板(双抗)治疗的经皮冠状动脉介入(percutaneous coronary intervention PCI)术后患者预后的影响。方法:本研究为观察性临床研究,纳入有高血压脑出血病史的PCI患者128例作为观察组,有高血压但无脑出血病史的PCI患者153例作为对照者。所有患者在PCI术后均服用阿司匹林100mg和氯吡格雷75mg治疗,随访时间为12~48个月。疗效结局为主要不良心脑血管病事件,安全性结局为再发脑出血和主要出血。结果:共随访到228例患者,其中观察组102例,对照组126例。既往脑出血病史(HR:1.998,95%CI:1.164~3.415,P=0.012)和冠心病病史(HR:2.664,95%CI:1.388~5.111,P=0.003)是导致高血压的PCI患者,双抗治疗下主要不良心脑血管病事件的危险因素。既往脑出血病史并未增加高血压的PCI患者,双抗治疗下再发脑出血(HR:2.292,95%CI:0.368~14.254,P=0.199)和主要出血的风险(HR:1.467,95%CI:0.475~4.536,P=0.506)。结论:脑出血病史和冠心病病史,是高血压的PCI患者双抗治疗下主要不良心脑血管病事件的危险因素。脑出血病史的高血压患者,PCI术后,在标准双抗治疗下,再发脑出血和主要出血的风险未增加,但明显增加主要不良心脑血管病事件的风险,需予以关注。

益气养阴化瘀汤对冠心病经皮冠状动脉介入治疗术后患者心功能和血管内皮功能的影响

目的观察益气养阴化瘀汤对冠心病经皮冠状动脉介入治疗(PCI)术后患者心功能及血管内皮功能的影响。方法将62例冠心病PCI术后患者按照随机数字表法分为2组。对照组31例予常规抗血小板聚集、稳定斑块等药物治疗,治疗组31例在对照组治疗基础上加用益气养阴化瘀汤治疗,均治疗4周。比较2组治疗前后中医症状评分、血管内皮功能[血清一氧化氮(NO)、血管内皮生长因子(VEGF)、内皮素-1(ET-1)]、心功能[心脏每搏输出量(SV)、左心室射血分数(LVEF)、左心室舒张末期内径(LVEDD)、左心室收缩末期内径(LVESD)及左心室收缩末期容积(LVESV)]、血液流变学指标[全血黏度(CP)、血浆黏度(PV)、红细胞比容(Hct)及红细胞聚集指数(AI)]变化,并比较2组心绞痛疗效和不良事件发生率。结果治疗后,2组中医症状胸闷疼痛、心悸盗汗、五心烦热及失眠多梦评分及总分均较本组治疗前下降(P<0.05),且治疗组均低于对照组(P<0.05)。治疗后,2组NO及VEGF水平均较本组治疗前上升(P<0.05),且治疗组高于对照组(P<0.05);治疗后,2组ET-1水平均较本组治疗前下降(P<0.05),且治疗组低于对照组(P<0.05)。治疗后,2组LVEF及SV均较本组治疗前上升(P<0.05),且治疗组高于对照组(P<0.05);治疗后,2组LVEDD、LVESD及LVESV均较本组治疗前下降(P<0.05),且治疗组低于对照组(P<0.05)。治疗后,2组CP、PV、Hct及AI水平均较本组治疗前下降(P<0.05),且治疗组低于对照组(P<0.05)。治疗组心绞痛疗效总有效率为87.10%(27/31),不良事件发生率6.45%(2/31),对照组分别为64.52%(20/31)、16.13%(5/31),治疗组心绞痛疗效总有效率高于对照组(P<0.05),2组不良事件发生率比较差异无统计学意义(P>0.05)。结论益气养阴化瘀汤可有效改善冠心病PCI术后患者心功能和血管内皮功能,且未增加不良事件发生。