Anticoagulation therapy in intra-aortic balloon counterpulsation： Does IABP really need anti-coagulation ？

Objective: To investigate if intra-aortic balloon pump(IABP) is contraindicated without anticoag-ulation therapy. Methods: Some 153 IABP patients in the King Abdulaziz Cardiac Center(KSA) were random-ly assigned into two groups. Anticoagulation group( Group A) consisted of 71 patients who were given heparin intravenously with target aPTT 50 - 70 seconds. Non-anticoagulation group( Group B) consisted of 82 patients without intravenous heparin during balloon pumping. Hematological parameters including platelet count, D-dimer, Plasminogen activator inhibitor-1 (PAI-1) and fibrinogen degradation products(FDP) were checked respectively at the point of baseline, 24 hours, 48 hours and 24 hours post IABP counterpulsation. Clot deposits on balloon surface, vascular complications from IABP including bleeding and limb ischemia were recorded.Results: Platelet count and PAI-1 level decreased at 24 hours and 48 hours in both groups ( P < 0.05) . D-dimer and FDP level increased at 24 hours and 48 hours in both groups( P < 0.05), but returned to the baseline level 24 hours post IABP removal( P > 0.05) . Three patients in Group A and 2 patients in Group B developed minor limb ischemia( P > 0.05). No major limb ischemia in either group. Two patients in Group A suffered major bleeding and required blood transfusion or surgical intervention, whereas no patient had major bleeding in Group B. Eight patients had minor bleeding in Group A, but only 2 patients in Group B ( P <0.05). No clot deposit developed on IABP surface in either group. Conclusion: IABP is safe without routine anticoagulation therapy. Selecting appropriate artery approach and early detection intervention are key methods for preventing complications.

Concurrent implantation of intra-aortic balloon pumping with extracorporeal membrane oxygenation improved survival of patients with postcardiotomy cardiogenic shock

Background Extra-corporeal membranous oxygenation (ECMO)and intra-aortic balloon pumping (IABP) are widely used in patients with severe circulatory failure. The decision to initiate ECMO and IABP on optimal occasion in postcardiotomy cardiogenic shock (PCS) remains controversial in the absence of guidelines.

Role of Intra-Aortic Balloon Pump in Off-Pump Coronary Artery Bypass —A Vettath Modification

Objective: Hemodynamic deterioration during positioning of the heart has been the most critical complication of off-pump coronary artery bypass surgery. Pre-operative use of intra-aortic balloon pump has been shown to prevent this complication in high risk patients. The role of balloon pump in high risk patients has been questioned by our group. We modified the role of balloon pump in our patients, thus avoiding the conversion to cardiopulmonary bypass. Methods: 4063 off-pump coronary bypass surgeries were performed by a single surgeon in our center, over thirteen years. 130 intra-aortic balloons used between July 2002 and December 2015 were removed from the the-ater, once the distal anastomosis was performed. We studied this group of patients for—time and need for insertion, duration of balloon used, local insertion problems and survival. Results: Initially, we inserted intra-aortic balloons in high risk patients. We observed that, patients with low ejection fraction and patients with critical left main coronary artery disease were not the ones who actually needed balloon pump support. It was the patients who had ongoing ischemia, with preserved left ventricular function, and ST depression intra-operatively, who needed balloon pump support to perform complete anatomical revascularization. Conclusions: Intra-aortic balloon pump has helped us to position the heart without hemodynamic instability, thereby avoiding conversion to cardio-pulmonary bypass. This enabled us to perform off-pump surgery in virtually all areas of the heart, thus maintaining perfect hemodynamics.

Migration of intra-aortic balloon pump causing obstruction of the superior mesenteric artery

Axillary intra-aortic balloon pump(IABP)used has increased in the recent few years after UNOs allocation system changes.IABP’s design and counterpulsation mechanism is highly regarded for its safety profile,simplicity and relative ease in management and care.However,despite continuous innovative efforts,the potential for complications still exists.The Benchmark registry is widely regarded as the tool for monitoring the evolving practice of IABP.The most common complications reported are balloon perforation,bleeding,migration,limb ischemia.Despite continuous innovative efforts,the potential for complications still exists.

Effects on the renal artery blood flow during the intra-aortic balloonpumping was used

The effects of intra-aortic balloon pumping(IABP) on hemodynamic parameters inthe kidney were studied. The pulse produced by pumping activated the renal nervoussystem and reduced the renal vascular resistance. Therefore, the reduction of the renalvascular resistance is an important reason for the increase the renal blood flow duringintra-aortic balloon pumping.

Preoperative Intra-Aortic Balloon Counterpulsation in Coronary Artery Bypass Graft Patients with Severe Left Ventricular Dysfunction

Background: The intra-aortic balloon pumping (IABP) is the most used ventricular mechanical assist device. In recent years, the preoperative use in patients with severe ventricular dysfunction presents itself as a great benefic strategy to the postoperative recovery. This paper aim is to evaluate the IABP post-operative benefit in patients with severe ventricular dysfunction. Methods: From January 2011 to March 2016, 125 patients underwent a coronary artery bypass graft (CABG) with cardiopulmonary bypass and preoperative IABP in Teaching Hospital of the ABC Medical School and Hospital Estadual Mario Covas. The inclusion criteria were the presence of severe ischemic cardiomyopathy with left ventricular ejection fraction (LVEF) less than or equal to 40%, estimated by Doppler echocardiography using the Simpson method. The preoperative LVEF was 30.25% ± 8.53% and the diastolic diameter of the left ventricle (LVDD) 67.75 ± 16.37 mm. IABP was installed approximately 15 hours before the surgery. Results: The patients required the IABP for 2.4 ± 1.58 days, and vasoactive drugs, 4.8 ± 2.12 days. We performed 3.2 ± 1.9 grafts per patient and the total length of stay was 07 ± 5.52 days. Cardiopulmonary bypass time was 67 ± 10.95 minutes and anoxia time, 46.4 ± 10.06 minutes. Twelve patients (9.6%) had pneumonia and four (3.2%), atrial fibrillation. We observed a LVDD reduction to 63 ± 16.26 (p = 0.068) and LVEF enhancement to 36.50 ± 16.86 (p = 0.144). The data were analyzed statistically according to the Wilcoxon test. There were no deaths. Conclusion: The initial experience of the authors with the preoperative IABP in patients with severe left ventricular dysfunction suggests great benefit in post-operative recovery with im-provement of LVEF and reduction of LVDD.

主动脉内球囊反搏(IABP)在重症冠脉搭桥术患者中的应用

目的:评价重症冠脉搭桥术患者应用主动脉内球囊反搏(IABP)治疗的效果。方法:31例重症冠脉搭桥术患者(左室射血分数LVEF≤40%)分别于术前放置球囊反搏导管,心脏复跳后行IABP辅助,对使用IABP前和停IABP前患者舒张压(DBP)、心输出量(CO)、尿量、血管活性药的剂量进行比较。结果:1例患者术后死于右心功能不全,病死率3.2%,其余患者于2～8天转出ICU;停用IABP前心输出量、舒张压和尿量均值明显高于使用IABP前均值;停用IABP前肾上腺素和多巴胺均值明显低于使用IABP前均值。结论:对重症冠脉搭桥术患者进行IABP辅助具有明显的循环支持效果,提高了重症冠脉搭桥术患者的手术成功率。

1例体外膜肺氧合联合主动脉球囊反搏辅助下行PCI救治心源性休克患者的护理

总结1例体外膜肺氧合(extracorporeal membrane oxygenation,ECMO)联合主动脉内球囊反搏辅助下行冠状动脉介入治疗救治急性心肌梗死伴心源性休克患者的手术护理经验。护理要点如下:采用多学科联合模式,组建“介入+ECMO团队”,规范手术站位及手术流程,做好冠状动脉介入治疗的术中配合及体外膜肺氧合、主动脉内球囊反搏的护理,术后做好转运及交接。患者手术过程顺利,围手术期无并发症发生,该患者经过专业的治疗与护理,术后第4天撤除主动脉内球囊反搏,术后第8天成功撤除体外膜肺氧合,术后第10天转普通病房治疗,术后第15天出院,随访时患者状态良好。

IABP治疗在AMI合并潜在及进展性泵功能不全患者中的早期应用

目的:总结在急性心肌梗死出现潜在及进展性泵功能不全时早期应用IABP治疗的临床经验。方法:对22例急性心肌梗死出现潜在及进展性泵功能不全患者早期进行IABP治疗的时机和效果进行分析。结果:全组病例恢复良好。结论:急性心肌梗死患者出现潜在及进展性泵功能不全时应尽快进行IABP治疗,在泵功能达到PCI指征后进行PCI手术有利于改善患者预后。

IABP辅助直接PCI治疗急性ST段抬高型心肌梗死合并心源性休克的效果和危险因素分析

目的探讨影响主动脉内球囊反搏（IABP）辅助直接PCI治疗急性sT段抬高型心肌梗死（STEMI）合并心源性休克患者30d病死率的危险因素。方法回顾性分析开封市中心医院心内科自2011—01—2015—12收治并应用IABP辅助PCI治疗STEMI合并心源性休克患者53例及同期未应用IABP辅助治疗的STEMI合并心源性休克患者54例，比较术前、术中和术后情况的变化以及随访30d病死率，并应用Kaplan—Meier生存分析评价两组的生存情况，Logistic回归分析30d病死率的危险因素，受试者工作特征性曲线评估相应的敏感性和特异性。结果入选的107例患者中，男性65例，女性42例，平均年龄（63．8±11．3）岁，入院平均动脉压为（64．3±14．4）mmHg。两组间年龄、术前平均动脉压、血肌酐、进门一球囊扩张时间、术后CK—MB和cTnI峰值、心电图ST段回落等差异均有统计学意义（P〈0．05）。此外，两组患者应用血管活性药物的时间、机械通气比例、CCU住院时间、急性肾损伤等差异均有统计学意义（P〈0．05）。随访30d时，死亡32例。Kaplan—Meier生存分析两组间的中位生存时间差异无统计学意义（P〉0．05）。Logistic回归分析发现年龄（OR1．10，95％CI1．02—1．27，P=0．003）、D2B（OR1．54，95％CI1．17～1．93，P=0．04）、急性肾损伤（OR2．58，95％CI1．82—3．57，P=0．02）和IABP再置入（OR3．43，95％CI，2．33—4．85，P=0．01）为预测30d病死率的重要影响因素。结论IABP有助于稳定STEMI合并心源性休克患者的血流动力学，但对短期病死率无显著影响。

IABP术辅助PCI术在急性心肌梗死并心源性休克中的应用价值

目的探讨主动脉内球囊反搏(IABP)辅助经皮冠状动脉介入治疗(PCI)在急性心肌梗死(AMI)并心源性休克(CS)中的应用价值。方法回顾性分析2013年10月至2015年3月156例在广州市番禺区沙湾人民医院和广州市番禺区中心医院接受治疗的AMI并CS患者的临床资料。其中65例患者直接行PCI治疗(对照组),91例患者先行IABP治疗再行PCI治疗(观察组)。比较两组患者收缩压、舒张压、平均动脉压、心脏指数、心率和左心室射血分数(LVEF),7 d和30 d死亡率,以及心肌梗死再发率。结果两组患者在性别、年龄、发病至治疗时间、冠脉病变支数、Killip心功能分级、基础疾病和梗死类型方面比较差异均无统计学意义(P>0.05);两组患者术后24 h内收缩压、舒张压、平均动脉压和心脏指数明显提高,心率明显下降,且观察组改善更加明显,差异均有统计学意义(P<0.05);两组患者术后2周的LVEF明显提高,且观察组改善更加明显,差异有统计学意义(P<0.05);观察组患者的7 d死亡率为7.7%,明显低于对照组的20.0%,差异有统计学意义(P<0.05);但两组患者的30 d死亡率、心肌梗死再发率比较差异均无统计学意义(P>0.05)。结论 IABP辅助治疗能够迅速、有效地改善AMI合并CS患者的心功能和血流动力学,为PCI血运重建提供条件,有效降低短期死亡率。

Peri-operative application of intra-aortic balloon pumping reduced in-hospital mortality of patients with coronary artery disease and left ventricular dysfunction

Background:There are few reports of peri-operative application of intra-aortic balloon pumping(IABP)in patients with coronary artery disease(CAD)and different grades of left ventricular dysfunction.This study aimed to analyze the early outcomes of perioperative application of IABP in coronary artery bypass grafting(CABG)among patients with CAD and left ventricular dysfunction,and to provide a clinical basis for the peri-operative use of IABP.Methods:A retrospective analysis of 612 patients who received CABG in the General Hospital of People's Liberation Army between May 1995 and June 2014.Patients were assigned to an IABP or non-IABP group according to their treatments.Logistic regression analysis was performed to investigate the influence of peri-operative IABP implantation on in-hospital mortality.Further subgroup analysis was performed on patients with severe(ejection fraction[EF]≤35%)and mild(EF=36%-50%)left ventricular dysfunction.Results:Out of 612 included subjects,78 belonged to the IABP group(12.7%)and 534 to the non-IABP group.Pre-operative left ventricular EF(LVEF)and EuroSCOREII·predicted mortality was higher in the IABP group compared with the non-IABP group(P<0.001 in both cases),yet the two did not differ significantly in terms of post-operative in-hospital mortality(P=0.833).Regression analysis showed that IABP implantation,recent myocardial infarction,critical status,non-elective operation,and postoperative ventricular fibrillation were risk factors affecting in-hospital mortality(P<0.01 in all cases).Peri-operative IABP implantation was a protective factor against in-hospital mortality(P=0.0010).In both the severe and mild left ventricular dysfunction subgroups,peri-operative IABP implantation also exerted a protective role against mortality(P=0.0303 and P=0.0101,respectively).Conclusions:Peri-operative IABP implantation could reduce the in-hospital mortality and improve the surgical outcomes of patients with CAD with both severe and mild left ventricular dysfunction.

Influence of preoperative coronary collateral circulation on in-hospital mortality in patients undergoing coronary artery bypass graft surgery with intra-aortic balloon pump support

Background Outcomes in patients requiring coronary artery bypass graft （CABG） surgery have been improved with devices such as the intra-aortic balloon pump （IABP）.Good coronary collateral circulation （CCC） has been shown to reduce mortality in patients with coronary artery disease （CAD）.We aimed to investigate whether poor preoperative CCC grade is a predictor of in-hospital mortality in CABG surgery requiring IABP support.Methods Fifty-five consecutive patients who were undergoing isolated first time on-pump CABG surgery with IABP support were enrolled into this study and CCC of those patients was evaluated.Results Twenty-seven patients had poor CCC and 28 patients had good CCC.In-hospital mortality rate in poor CCC group was significantly higher than good CCC group （14 （50％） vs.4 （13％）,P=0.013）.Preoperative hemoglobin level （OR：0.752; 95％ CI,0.571-0.991,P=0.043）,chronic obstructive pulmonary disease （OR：6.731; 95％ CI,1.159-39.085,P=0.034） and poor CCC grade （OR：5.750; 95％ CI,1.575-20.986,P=0.008） were associated with post-CABG in-hospital mortality.Poor CCC grade （OR：4.853; 95％ CI,1.124-20.952,P=0.034） and preoperative hemoglobin level （OR：0.624; 95％ CI,0.476-0.954,P=0.026） were independent predictors of in-hospital mortality after CABG.Conclusion Preoperative poor CCC and hemoglobin are predictors of in-hospital mortality after CABG with IABP support.

Efficacy and safety of intra-aortic balloon pump-assisted interventional therapy in different age groups of patients with acute coronary syndrome

Background Currently intra-aortic balloon pump （IABP） has been widely used in patients with acute coronary syndrome （ACS） who undergo percutaneous coronary intervention （PCI）. However, few studies have been done with regard to the clinical outcome and safety of IABP in assisting PCI in aged patients with ACS. The purpose of the present study was to evaluate the safety of tABP in different age groups of patients with ACS.Methods Data on 292 ACS patients who received IABP-assisted PCI in Shenyang General Hospital of People＇s Liberation Army were retrospectively analyzed. More specifically, the successful rate, mortality and complications associated with the treatment were compared between the senior （〉60 years old） and the non-senior （〈60 years old） groups of patients. Results The attack rate of non-ST segment elevation ACS was significantly higher in the senior group than in the non-senior group （38.8% vs 21.1%, P 〈0.01）. The incidence of the IABP-associated complications was not significantly different between both groups （P 〉0.05）.Conclusion The clinical outcome and safety of IABP-assisted PCI in the elderly patients were comparable to that for the non-elderly patients.

Thrombocytopenia in patients of acute coronary syndrome with intra-aortic balloon pumping placement

Background Thrombocytopenia is a common complication of IABP. Until now,there is no unified conclusions about the incidence,characteristics,risk factors and the prognosis of IABP related thrombocytopenia.Methods In this study,the data of patients with ACS undergoing PCI and IABP were retrospectively analyzed.All enrolled patients were divided into thrombocytopenia group and non-thrombocytopenia group according to the occurrence of thrombocytopenia after insertion of IABP. The baseline data of the two groups were compared,and the possible risk factors of thrombocytopenia and their impact on prognosis were analyzed by chi-square test and logistic regression analysis. Results Sixty-two patients were enrolled in this study. The rate ofIABP associated thrombocytopenia was 25.8%(16/62)of all patients. Older agewas an independent risk factor of IABP associated thrombocytopenia(OR:3.625;95% confidence interval:1.016-12.935;P=0.047). The incidence of TIMI bleeding events was higher in thrombocytopenia group[75.0%(12/16)vs. 43.5%(20/46),P=0.042]. The rate of in-hospital death was similar between the two groups[18.8%(3/16)vs. 17.4%(8/46),P=1.0]. Conclusion IABP associated thrombocytopenia occurs in 25.8% of patients with ACS undergoing PCI and correlates with increased TIMI bleeding events. Older age may predict IABP associated thrombocytopenia.

Efficacy of IABP in patients awaiting cardiac transplantation

Intra-aortic balloon pump (IABP)support is used in severalclinical situations.To determine its efficacy in patients with severe heartfailure awaiting cardiac transplantation,the experience at the Universityof Pittsburgh from May 1986 to October 1989 was reviewed.Of 392 patientson the waiting list,(16.3%) required IABP.All had previously been oninotropic support for varying periods of time.The ability to stabilize andto sustain the patient to cardiac transplantation was 75%.Twenty patients(31.3% of group) required and were provided more extensive mechanicalzsupport with either total artificial heart (n=ll) or left ventrieular assistdevice (n =9).Twenty-nine patients (45% of entire gronp) were able tohave the IABP removed prior to transplantation.Seventeen patients(26.6%)parameters demonstrated improvement with IABP.These data support IABPas a bridge to transplantation in patients with severe heart failure who havenot been stabilized on inotropie agents alone.These data also demonstratethat IABP support may only be required temporarily in a subgroup of pa-tients awaiting cardiac transplantation.

Superior mesenteric artery embolism as a fatal complication of intra-aortic balloon pump: A case report and literature review

INTRODUCTION The intra-aortic balloon pump(IABP)is commonly used as a cardiac assist device in various clinical situations,including cardiogenic shock,mechanical complications of acute myocardial infarction,high risk percutaneous coronary interventions(PCI),coronary artery bypass graft surgery and refractory unstable angina,etc.However,like other invasive devices,the use of IABP has been associated with some complications.The most frequently reported complications are hemorrhage and limb ischemia.Rare complications include infection,arterial perforation,aortic dissection and thrombocytopenia and bowel infarction.Arterial embolism of internal organs is a rare but fatal complication of IABP therapy.Sirbu et al.reported that 59%of patients who developed ischemic vascular complications due to IABP died1.

Clinical significance of intra-aortic balloon pumping on no-reflow phenomenon of primary percutaneous coronary intervention for acute myocardial infarction

Background Percutaneous coronary intervention （PCI） is used as a treatment for acute myocardial infarction （AMI）, and one of its major complications is the angiographic no-reflow phenomenon （NR）. Although intra-aortic balloon pumping （IABP） is sometimes used in such patients to increase the diastolic coronary blood flow, there is little available information regarding the effects of IABP on the angiographic no-reflow phenomenon. Method Twenty-two AMI patient with NR were performed primary PCI between January 2006 and December 2009, of which 12 patients were selected for IABP therapy and the left 10 were selected as the control group by group procedure of odd and even days; We observed the vasoactive substance in both groups on the days of 1, 2, 3, 5, 7, 10 after the different interventions, which include plasma renin activity （PRA）, angiotensin Ⅱ （ANG Ⅱ）, aldosterone （ALD）, adrenaline （E）, and noradrenalin （NE）; In addition, cardiac structure and cardiac ventricle systolic function including left atrium medial diameter （LAMD）, left ventricular medial diameter （LVMD） Finally, left ventricular ejection fraction （LVEF） were evaluated after 10 days, 3 months and 6 months; statistics was taken to analysis. Results According to the time concentration curve, vasoactive substance of the IABP group decreased faster than that of the control group, and this difference had statistical significance （P 〈 0.01 ） ; In terms of LAMD, LVMD, and LVEF, echocardiography difference of the IABP and the control group in 10 days, 3 months, and 6 months also showed statistical significance （P 〈 0.05）. Conclusions IABP can significantly reduce the release of vasoactive substances of NR in patients of primary PCI for AMI; LAMD, LVMD and LVEF in 10 days, 3 months, and 6 months can be improved using this method, which is conducive to recovery of heart function.

Application of intra-aortic balloon pumping on no-reflow phenomenon in primary PCI for STEMI

Background To investigate the effect of intra-aortic balloon pumping （IABP） on no-reflow phenomenon primary percutaneous coronary intervention （PCI） for ST-Elevation Myocardial Infarction （STEMI）. Methods Clinical data of 22 acute myocardial infarction patients after PCI with angiographic no-reflow phenomenon were retrospectively analyzed between January 2006 and December 2009.12 patients underwent IABP, other 10 patients as control group. We observed difference of cardiac structure, brain natriuretic peptide （BNP） and ventricular systolic function between two group, as well as cardiac injury markers （MYO,CK-MB, cTnI） in both groups on the days of 1, 2, 3, 5, 7, 10 after the different interventions. In addition, cardiac structure and ventricular systolic function including left atrium medial diameter （LAMD）, left ventricular medial diameter （LVMD）, left ventricular ejection fraction （LVEF） was evaluated after 10 days, 3 months,6 months Finally, statistics was used to analysis the data. Results The several vasoactive substances as well as cardiac injury markers and LAMD, LVMD, LVEF of 10 days, 3 months, 6 months of IABP group were significant difference with control group significant difference （P 〉 0.0 PCI with angiographic no-reflo （P 〈 0.05）. 5）. Conclusions w phenomenon, BNP targets of IABP group compared with the control group no IABP has effects on prognosis in STEMI patients who performed which is conducive to recovery of heart function.

A comparative analysis of intra-aortic balloon pump in off-pump patients undergoing coronary artery bypass grafting at different perioperative stages

Background Intra-aortic balloon pump （IABP） has been widely used at present. We can use it at different stages of perioperative period in off-pump coronary artery bypass grafting （CABG）. However, when to used it was seldom confirmed. Methods From January 2008 to June 2012, the 89 coronary heart disease （CHD） patients accepted implantation of IABP at different stages of off-pump CABG, preoperative and postoperative ventricular systolic function, left ventricular remodeling situation and the changes of myocardial enzymes were evaluated. Results All the patients had left heart insufficiency and muhivessel disease. Their postoperative left ventricular systolic function and ventricular remodeling were significantly improved while myocardial enzymes decreased with preoperative interventional implantation of IABP. The perioperative mortality was 7.86% （7/89）. No patients had complication of IABP. Conclusion Earlier IABP implantation at preoperation is useful to improve heart function, improve the tolerability of surgery, reduce the incidence of postoperative low cardiac output syndrome （LCOS） and decrease the mortality.