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A meta analysis of antiplatelet therapy after transcatheter aortic valve implantation

Hao WANG ; Fanhua MENG ; Xiang MA ; Yitong MA

Chinese Journal of Interventional Cardiology.2016;24(9):515-520. doi:10.3969/j.issn.1004-8812.2016.09.008

Objective To assess the efficacy and safety of antiplatelet threapy after transcatheter aortic valve implantation.Methods Databases including PubMed , EMBASE, MEDLINE, the Cochrane Library, CMB and CNKI were searched to collect the randomized controlled trials ( RCTs) and cohort study trials ( CSTs ) about the efficacy and safety of antiplatelet threapy after transcatheter aortic valve implantation.The literature was screened according to the inclusive and exclusive criteria by two reviewers independently.The quality was evaluated.The data were extracted and meta-analyses were performed by using RevMan 5.3 software.Results 4 trials were included, of which 2 were RCTs involving 199 patients, and 2 were cohort studies involving 441 patients.Efficacy analysis showed that there were no differences between mono versus dual antiplatelet therapy in terms of 30-day rates of stroke ( OR 0.55 ,95%CI:0.22-1.35 ,P =0.19 ) , myocardial infarction ( OR 1.70 , 95% CI:0.25 -11.65 , P =0.59 ) , and all-cause mortality ( OR 0.77 , 95% CI:0.40 -1.49 , P =0.44 ) .Safety analysis showed that mono antiplatelet therapy had lower incidence of bleeding events , compared to dual antiplatelet therapy ( OR 0.37 , 95%CI:0.23-0.59,P<0.0001).Conclusions Mono versus dual antiplatelet therapy in the prevention of stroke , myocardial infarction and all-cause mortality after TAVI has similar protective effects .Mono antiplatelet threapy presents lower bleeding event rate .Due to limited quality and quantity of the included studies , the above conclusions need to be verified by more high quality studies .

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Treatment of complex coronary lesions by excimer laser coronary atherectomy:the initial experiences in China

Wei LIU ; Yujie ZHOU ; Yingxin ZHAO ; Dongmei SHI ; Yuyang LIU ; Zhiming ZHOU ; Yonghe GUO ; Wanjun CHENG ; Hailong GE ; Jianlong WANG ; Bin HU ; Xiaoli LIU

Chinese Journal of Interventional Cardiology.2016;24(9):511-514. doi:10.3969/j.issn.1004-8812.2016.09.007

Objective Excimer laser coronary atherecomy ( ELCA) has been recently used for the treatment of complex coronary lesions including calcified stenosis , chronic total occlusions and in-stent restenosis. Such complex lesions are difficult to adequately treat with balloon angioplasty and /or intracoronary stenting.The aim of this study was to introduce our early experiences in using ELCA in China . Methods Fifteen patients were enrolled through our center from March 2015 to April 2016 , and excimer laser coronary angioplasty was performed on 15 lesions.Eleven patients were previously failed cases either from uncrossable balloon ( 9 lesions ) or expandable balloon ( 6 lesions ) . The procedure and clinical endpoints were recorded .Results Laser catheter with 0.9 mm diameters were used in all 15 coronary lesions.All the lesions were successfully crossed with laser catheter and finally dilated with balloon .The procedural success rate was 100%.Drug eluting stents ( DES ) were implanted in 86.7% lesions and 2 cases were treated with drug eluting balloon .Clinical success was obtained in all patients (100%).There was no dissection , major side branch occlusion , spasm, no-reflow phenomenon nor acute vessel closure . Conclusions This study shows that laser-facilitated coronary angioplasty is a simple , safe and effective device for the management of complex coronary lesions .

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Plasma gelsolin levels in prediction of prognosis of ST-segment elevation myocardial infarction

Jiarong LIANG ; Liangqiu TANG ; Yunxian CHEN ; Wenmao FAN ; Baofeng CHEN ; Jinfeng CHEN ; Xiangying LIU ; Zhaoji CHEN

Chinese Journal of Interventional Cardiology.2016;24(9):506-510. doi:10.3969/j.issn.1004-8812.2016.09.006

Objective To investigate the predictive value of plasma gelsolin in the prognosis of patients with ST-sgement elevation myocardial infarction ( STEMI ) and undergone primary percutaneous coronary intervention ( PCI ) .Methods The study included 206 patients with STEMI and undergone primary PCI, 148 patients with stable angina pectoris and received elective PCI and 80 healthy volunteer as the health population (NP) control.Blood samples were taken at admission on day 1, 3, 5, 7 and 9 to determine the plasma gelsolin level .Patients′baseline clinical characteristics , blood biochemistry tests results , details of operation and their cardiovascular risk factors were recorded .Major adverse cardiovascular events (MACE) within one year were recorded.Results (1) Compared to the stable angina group and the NP group, the level of plasma gelsolin of STEMI patients were obviously decreased at various time points ( all P<0.05 ) .There were no statistical differences between the stable angina group and the NP group .( 2 ) Patients with STEMI were catagorized into MACE group (n=78) and non-MACE group (n=128) according their follow up record in 1 year.The level of plasma gelsolin in patients with MACE were lower than the non-MACE group ( P <0.05 ) with the minimum value detected on day 7.Among patients complicated with MACE (n=78), they were further devided into the deceased group (n=18) and the survival group (n=60).Plasma gelsolin levels were lower in the deceased group with satistical differences found on day 5, 7 and 9.(3) Single factor Logistic regression analysis showed that the level of plasma gelsolin on day 7 was independent risk factor of MACE within one year ( P =0.014 ) .( 4 ) Setting the cutoff value of plasma gelsolin on day 7 as 21.7 mg/L,the sensitivity and speciticity for the MACE in STEMI patients treated with primary PCI within one year were 82.1%and 81.4%respectively , with the area under the receiver operator characteristic curve ( ROC ) was 0.854 ( 95% confidence interval 0.732 -0.961 , P <0.01 ) . Conclusions Plasma gelsolin levels are correlated with the severity of STEMI lesions and plasma gelsolin can be used as predicting factor of prognosis .

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Influence of high frequency electrosurgical equipment application in cardiac impalntable elect ornic device implantation pro cedure on the rate of pocket hematoma

Baige XU ; Yanchun LIANG ; Yang GAO ; Xiaolei YAN ; Haibo YU ; Rong LIU ; Guoqing XU ; Na WANG ; Zulu WANG ; Yaling HAN

Chinese Journal of Interventional Cardiology.2016;24(9):502-505. doi:10.3969/j.issn.1004-8812.2016.09.005

Objective To investigate the influence of high frequency electrosurgical equipment ( HFEE) application in cardiac implantable electronic device ( CIED) implantation procedure on the rate of pocket hematoma .Methods Patients who received CIED implantation in General Hospital of Shenyang Military Region were analyzed retrospectively .HFEE was applied during CIED implantation procedure in every patient who was classified into HFEE group .Other patients without HFEE application were classified as the control group . Patients with or without bleeding tendency were sub-classified into the bleeding tendency subgroup or non-bleeding tendency subgroup respectively .Bleeding tendency subgroup was further divided into heparin bridging group and direct implantation group .The occurance rate of CIED pocket hematoma was recorded in all groups .Results A total of 3884 patients were enrolled .There were 3115 patients in the HFEE group and 769 patients in the control group .The baseline data of two groups was similar.The overall rate of CIED pocket hematoma in the total patient population during perioperative period were 2.2%(86/3884), and the rate of long term pocket infection or rupture in patients with CIED pocket hematoma was 10.5%(9/8).In the HFEE group, the rate of pocket hematoma was lower than that in the control group (1.5%vs.5.2%, P<0.001).The rates of CIED pocket hematoma in respective subgroups in the HFEE group including the bleeding tendency subgroup ( 1.8% vs.11.5%, P=0.004 ) , the non-bleeding tendency subgroup ( 1.4% vs.4.7%, P<0.001 ) and the heparin bridging group ( 2.0% vs. 11.5%, P=0.046 ) were markedly decreased as compared with the corresponding subgroups in the control group.In the control group , the rate of CIED pocket hematoma in the bleeding tendency subgroup was higher than that in the non-bleeding tendency subgroup (11.5%vs.4.7%, P=0.0046).In HFEE group, there was no significant difference in the rate of CIED pocket hematoma between bleeding tendency subgroup and non-bleeding tendency subgroup; and there was also no significant difference in the rate of CIED pocket hematoma between the heparin bridging group and the direct implantation group .Conclusion Application of HFEE in CIED implantation procedure could reduce the incidence of pocket hematoma , and there was no significant difference in the incidence of pocket hematoma in patients with or without oral anticoagulation or antiplatelet agents.

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Real world analysis of traditional cardiovascular risk factors in 6040 patients with suspected coronary heart disease undergoing angiography

Lisheng JIANG ; Qin SHAO ; Jun BU ; Ben HE

Chinese Journal of Interventional Cardiology.2016;24(9):497-501. doi:10.3969/j.issn.1004-8812.2016.09.004

Objective To analyze the real world status of traditional known cardiovascular risk factors in patients with coronary heart disease ( CHD ) .Methods 6040 in-hospital patients with CHD or suspected CHD undergoing angiography from 01/01/2013 to 02/28/2015 were retrospectively analyzed . According to angiography result , patients with severe coronary artery lesion and undergoing percutaneous coronary intervention (PCI) were enrolled in the PCI group (n=2808) and patients without severe coronary artery lesion and not undergoing PCI or CABG were enrolled in the No-PCI/CABG group (n=3232).Patients in the PCI group were further divided into 3 subgroups which were STEMI group , NSTEMI/UA group and stable angina (SA) group.Results (1) Compared with the No-PCI/CABG group, patients in the PCI group have higher ratio of male patients (75.4% vs.53.1%, P<0.0001), older average age (64.83 ±0.20 vs. 63.39 ±0.18 years old , P <0.0001 ) , and higher existing rates of traditional risk factors including hypertension (66.7%vs.54.7%, P<0.0001 ) , diabetes/impaired glucose tolerance ( IGT ) ( 37.0% vs. 20.8%, P<0.0001), stroke(7.0%vs.5.4%,P=0.0098)and chronic kidney disease (CKD) (4.3%vs. 2.8%, P=0.001 ) , but there was no statistic difference in existing rates of dyslipidemia between the two groups.(2)In the PCI group,female patients had higher prevalence of hypertension (74.1%vs.64.3%, P<0.001), diabetes/IGT (42.5%vs.35.3%, P=0.0007) and stroke (9.4%vs.6.2%, P=0.0054) than the male patients.There were no significant sex difference in these comorbidities as above in No-PCI/CABG group.Female patients had higher prevalence of dyslipidemia than male patients in both PCI and No -PCI/CABG groups.(3) Among all the 3 PCI subgroups, STEMI patients presented with youngest average age (62.54 ±0.45 vs.65.15 ±0.28 vs.66.17 ±0.34 years old, P<0.0001) and highest male patient ratio (83.9%vs.72.9% vs.72.3%, P<0.0001).Patients in the SA subgroup had the highest prevalence of hypertension and prior revascularization including PCI and CABG .Patients in the NSTEMI/UA subgroup had the highest rates of diabetes/IGT.No significant differences were observed in the prevalence of dyslipidemia , CKD and stroke among all the subgroups .Conclusions Hypertension and diabetes are the leading risk factors of coronary artery disease , and prior revascularization is also an important cause of stable angina and NSTEMI /UA undergoing PCI.Patients requiring PCI were found to be more of male gendor , but female patients has higher prevalence of traditional cardiovascular risk factors including hypertension , diabetes/IGT or stroke than male patients.

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Therapeutic effect of self made balloon with side hole perfusion on no reflow after emergency percutaneous coronary intervention

Libin ZHANG ; Shunjin GAN ; Jincheng GUO ; Guowang GAO ; Lixin ZHANG

Chinese Journal of Interventional Cardiology.2016;24(9):493-496. doi:10.3969/j.issn.1004-8812.2016.09.003

Objective To investigate the therapeutic effect of self made balloon with side hole on no reflow ( NR) after emergency percutaneous coronary intervention ( PCI ) .Methods 48 patients with NR after PCI in our hospital were randomized into two groups , which were group A ( n=24 , patients received self made perfusion balloons with holes ) and group B ( n=24 , patients using direct guiding catheter ) and through respective devices intravascular tirofiban and verapamil were given .TIMI flow grade, recovery of myocardial enzymes and ST-segment elevation , LVEF and the incidence of MACE were compared between the 2 groups.Results Among patients in group A , the percentage of immediate postoperative TIMI Ⅲflow (79.2%vs.45.8%,P=0.032), ST segment resolution of more than 50% (83.3% vs.54.2%,P =0.029 ) and LVEF after 1 months [ ( 54.92 ±12.32 )% vs. ( 47.67 ±12.15 )%, P =0.046 ] were significantly higher than patients in group B .The CK peak value of patients in group A [ ( 1018.62 ± 732.34)mmol/L vs.(1497.75 ±858.63)mmol/L, P =0.043], CK-MB peak values [(113.84 ± 76.53 ) mmol/L vs.( 172.74 ±93.56 ) mmol/L, P=0.021 ] and MACE rates ( 0 vs.16.7%, P=0.037 ) were lower than those of patients in group B .Conclusions The use of self-made perfusion balloon with side hole for the treatment of NR patients after emergency PCI is convenient , easy and effective.

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Predictors of warfarin persistence in non-valvular atrial fibrillation patients with high risk of stroke in anticoagulation clinic

Jiali WANG ; Peng GAO ; Jingbo FAN ; Zhongwei CHENG ; Hua DENG ; Kangan CHENG ; Quan FANG

Chinese Journal of Interventional Cardiology.2016;24(9):487-492. doi:10.3969/j.issn.1004-8812.2016.09.002

Objective To identify predictors of prescription initiation and persistence of warfarin in non-valvular atrial fibrillation ( NVAF ) patients with high risk of stroke ( CHA2 DS2-VASc≥2 ) . Methods NVAF patients consulted in our hospital from Aug , 2011 to Apr, 2015 were enrolled.Patients who underwent radiofrequency catheter ablation were excluded . Patients were divided into two groups (warfarin group and non-warfarin group).Logistic regression was used to estimate the predictors of initiation warfarin prescription.Kaplan-Meier survival and Cox proportional hazards model was performed to determine rate of warfarin persistence and its associated factors .Results A total of 622 AF patients were enrolled and 490 patients with CHA2DS2-VASc≥2.Ten patients lost follow up and 480 patients were followed up with a mean follow-up period of ( 40.0 ±11.55 ) months.Of which 245 NVAF patients ( 51%) had a warfarin prescription.Patients with ischemic stroke ( OR 2.447 , 95%CI 1.435-4.171 , P=0.001 ) , heart failure ( OR 2.009 , 95%CI 1.084-3.724 , P=0.027 ) and persistent AF ( OR 2.231 , 95%CI 1.448-3.437 , P=0.0001 ) had a higher likelihood of warfarin prescription .Anemia ( OR 0.479 , 95%CI 0.238-0.964 , P=0.039), concommitant Traditional Chinese Medicine (TCM) use (OR 0.638, 95%CI 0.456-0.891, P=0.008 ) and longer distance to hospital ( OR 0.759 , 95%CI 0.610-0.945 , P=0.014 ) decreased the likelihood of warfarin prescription . One hundred and seventy-six ( 71.8%) warfarin users continued persistent therapy and the overall proportion of warfarin persistence was 78.3% for one year , 71.0% for 3 years.Seventy-six existing warfarin users continued the warfarin therapy (80%, 76/95),one hundred new users showed persistence to therapy ( 66.7%, 100/150 ) .Warfarin use before enrollment significantly increased warfarin persistence than new prescription ( P =0.008 ) .Variables associated with higher discontinuation were new prescription ( HR 1.786 , 95% CI 1.029-3.100 , P=0.039 ) , TCM use ( HR 1.687 , 95%CI 1.201-2.37 , P=0.003 ) and longer distance to hospital ( HR 1.446 , 95% CI 1.121-1.865, P=0.005).Conclusions In anticoagulation clinic, concommitant TCM use, distance to hospital and other factors were associated with warfarin initiation prescription and persistence .Identifying factors associated with warfarin treatment could help in developing adherence of patients .

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Study on safety and efficacy of bivalirudin during primary percutaneous coronary intervention in patients with acute myocardial infarction and diabetes mellitus

Lijun ZHAO ; Ming LIANG ; Jing LI ; Jingjing RONG ; Jingyang SUN ; Yi LI ; Yaling HAN

Chinese Journal of Interventional Cardiology.2016;24(9):481-486. doi:10.3969/j.issn.1004-8812.2016.09.001

Objective To evaluate the safety and efficacy of bivalirudin in patients with acute myocardial infarction ( AMI) and diabetes undergoing primary percutaneous coronary intervention ( PCI) . Methods BRIGHT was a multicenter , randomized , controlled study which enrolled AMI patients underwent primary PCI in 83 Chinese centers between August 2012 and June 2013.All patients were randomly assigned to receive bivalirudin , heparin or heparin plus tirofiban. This study was a prespecified subgroup analysis of the BRIGHT study.A total of 465 diabetics in the BRIGHT study were included , consisted of 168 in the bivalirudin group , 137 in the heparin group and 160 in the heparin plus tirofiban group .Primary endpoint was net adverse clinical event ( NACE) at 30 days, which was defined as a composite of major adverse cardiac and cerebral events ( MACCE ) and any bleedings .Results The incidences of NACE at 30 days were significantly different among three arms ( Bivalirudin:10.1% vs.heparin:16.1% vs.Heparin plus tirofiban 20.6%, P=0.031 ) .Compared with heparin plus tirofiban , bivalirudin was associated with a significantly lower NACE rate (P<0.01).Bivalirudin treatment significantly reduced bleeding events at 30 days compared with heparin and heparin plus tirofiban ( 3.0% vs.7.3% vs.12.5%, P <0.01 ) .The 30-day incidences of MACCE and stent thrombosis were similar among the three groups ( P>0.05 ) . Conclusions The use of bivalirudin has dramatically reduced the rate of bleeding and did not increase the incidence of ischemic events compared with heparin and heparin plus tirofiban , indicating a better safety and efficacy profile of bivalirudin during primary PCI in patients with AMI and diabetes .

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Clinical features of acute myocardial infarction in young female patients

Zhuang TIAN ; Ran TIAN ; Zhenyu LIU ; Yong ZENG ; Shuyang ZHANG

Chinese Journal of Interventional Cardiology.2014;(5):295-299. doi:10.3969/j.issn.1004-8812.2014.05.005

Objective To investigate the clinical features of young female patients with acute myocardial infarction (AMI) who were referred to Peking Union Medical College Hospital. Methods A total of 24 consecutive AMI female patients (age≤44 years) who underwent coronary angiography were retrospectively retrieved from the database, and 70 AMI patients whose age ≥ 65 years and who also underwent coronary angiography were enrolled as a control (elderly) group. Clinical features were compared between the two groups. Results Of the 24 young female AMI patients, MI from non-atherosclerosis was identiifed in 9 patients (non-ATS group). Compared to the remaining 15 young female AMI patients (ATS-group), non-ATS group was younger (P<0.05), with lower BMI (P<0.05) and less traditional risk factors of coronary heart disease (P<0.05). Coronary angiography showed more normal artery (P<0.05) and lesions on left main (P<0.05). However, when compared to the elderly group, the young female ATS-group was associated with less hypertension (P<0.01), smoking (P<0.05), traditional risk factors (P<0.01) and lower level of blood pressure (P<0.05), fasting glucose (P<0.05), serum creatine (P<0.01), TC (P<0.05), and LDL-C (P<0.01) at admission. Coronary angiography showed single vessel disease was the most common lesion. Conclusions Acute myocardial infarction in young female might be caused by non-atherosclerosis. Those due to atherosclerosis differ in coronary risk factors and angiographic features from the elderly female AMI patients.

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Predictors of in-hospital heart failure in patients undergoing successful primary percutaneous coronary intervention for acute myocardial infarction

Hui WANG ; Zhenyu LIU ; Shuyang ZHANG ; Zhujun SHEN ; Zhongjie FAN ; Yong ZENG ; Hongzhi XIE ; Chonghui WANG ; Xiaofeng JIN ; Quan FANG ; Wenling ZHU

Chinese Journal of Interventional Cardiology.2014;(5):288-294. doi:10.3969/j.issn.1004-8812.2014.05.004

Objectives We sought to determine the factors that predicted in-hospital heart failure(HF)in patients undergoing successful primary percutaneous coronary intervention(PCI)for ST-segment elevation myocardial infarction(STEMI). Methods The clinical and angiographic data were retrospectively reviewed in patients undergoing successful primary PCI for their ifrst STEMI. According to the occurrence of in-hospital HF, patients were divided into HF group and non-HF group. The incidence and predictors of in-hospital HF and its impact on prognosis were determined. Results A total of 834 patients were included, among them 94 patients (11.3%) were in the HF group and 740 patients(88.7%) were in the non-HF group. The mean age was (62.9±12.9) years and 662 patients (79.4%) were male. All-cause mortality at 30 days was signiifcantly higher in the HF group than in the non-HF group (24.5%vs. 1.5%, P<0.001). In Cox regression analysis, left anterior descending artery (LAD) as the culprit vessel (HR 2.173, 95% CI 1.12~4.212, P=0.022), ln 24 h NT-proBNP (HR 1.904, 95%CI 1.479~2.452, P<0.001), 24 h hsCRP≥11.0 mg/L (median) (HR 2.901, 95%CI 1.309~6.430, P=0.009) and baseline serum glucose (HR 1.022, 95%CI 1.000 ~ 1.044, P=0.046) were independent predictors of in-hospital HF. Receiver operator characteristic analysis identiifed 24 h NT-proBNP ≥ 1171 pg/ml (c=0.883, P < 0.001) and 24 h hsCRP ≥ 13.5 mg/L (c=0.829, P < 0.001) were the best cut-off values in discriminating in-hospital HF with a sensitivity and speciifcity of 92.5%and 76.8%for 24 h NT-proBNP, 86.0%and 77.0%for 24 h hsCRP, respectively. Even among patients with LAD as the culprit vessel, the incidence of in-hospital HF was only 0.4%in patients whose 24 h NT-proBNP was<1171 pg/ml and 24 h hsCRP was<13.5 mg/L;while the incidence of in-hospital HF was up to 60.9%in patients whose 24 h NT-proBNP≥1171 pg/ml and 24 h hsCRP≥13.5 mg/L (P<0.001). Conclusions The incidence of in-hospital HF was still high in STEMI patients even after successful primary PCI. Patients with in-hospital HF had poor prognosis. LAD as the culprit vessel, hsCRP, NT-proBNP and baseline serum glucose were independent predictors of in-hospital HF. Assessment and combined use of different serum biomarkers were effective methods to estimate the risk of in-hospital HF in STEMI patients undergoing primary PCI.

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