The best time of stem cells transplantation for treating acute myocardial infarction (AMI) is still to be followed with interest and a focus issue for clinical cardiologist. A brief meta-analysis of clinical trials ab...The best time of stem cells transplantation for treating acute myocardial infarction (AMI) is still to be followed with interest and a focus issue for clinical cardiologist. A brief meta-analysis of clinical trials about timing-window and therapeutic effects of stem cell transplantation for treating AMI will be made out in this article.展开更多
Background Increased levels of inflammatory markers have been documented in various settings of coronary artery disease. The vulnerability of coronary lesions in acute myocardial infarction(AMI) at the time of onset m...Background Increased levels of inflammatory markers have been documented in various settings of coronary artery disease. The vulnerability of coronary lesions in acute myocardial infarction(AMI) at the time of onset may be related to serum levels of C reactive protein(CRP) on admission, before CRP levels are affected by myocardial damage.Objective This study assessed the predictive value of CRP levels within six hours after the onset of acute anterior myocardial infarction with primary percutaneous coronary intervention(PCI).Methods The plasma CRP of 76 patients with first acute anterior myocardial infarction was measured within 6 hours after onset. They were divided into 2 groups: group 1( n =20) with elevated CRP( ≥0.3mg/dl ) on admission within 6 hours after onset and group 2( n =56) with normal CRP( <0.3mg/dl ) within 6 hours after onset. All patients were treated by primary PCI. The primary combined end points, including death due to cardiac causes, re MI related to the infarction artery(RIA) and repeat intervention of the RIA, and the restenosis rate were assessed in relation to CRP levels within 6 hours after onset. Left ventricular end diastolic volume index(EDVI),end systolic volume index(ESVI),and ejection fraction(EF) on admission and 6 month after the onset were assessed by left ventriculography. Changes in EDVI(ΔEDVI),ESVI(ΔESVI), and EF(ΔEF) were obtained by subtracting respective on admission values from corresponding 6 month follow up values. Results There were no significant differences in baseline characteristics between the two groups. The primary combined end points were significantly more frequent in group 1(20%) than those in group 2( 1.79% , P <0.01 ).In addition, restenosis rates were significantly higher in group 1 than in group 2(41.18% vs 16.07%, P<0.05). Group 1 showed greater increases in left ventricular volume and less improvement in EF compared with group 2(ΔEDVI 6.31 ±2.17 vs 3.29 ±9.46ml/m 2 , ΔESVI 5.92 ±2.31 vs 3.86 ±1.08ml/m 2 , ΔEF 1.92 ±0.47 vs 4.79 ±1.73% , P <0.05 , respectively).Conclusions CRP levels within 6 hours after the onset of AMI might predict adverse outcome after primary PCI and progressive ventricular remodeling within 6 month of AMI.展开更多
Objective:To investigate the clinical effects of applying the magnetic resonance double mismatch technique to endovascular treatment of acute anterior circulation,large vessel occlusion with cerebral infarction in an ...Objective:To investigate the clinical effects of applying the magnetic resonance double mismatch technique to endovascular treatment of acute anterior circulation,large vessel occlusion with cerebral infarction in an unknown time window.Methods:The research work was carried out in our hospital,the work was carried out from November 2018 to November 2019,the patients with acute anterior circulation large vessel occlusion with cerebral infarction who were treated in our hospital during this period,100 patients,50 patients with an unknown time window and 50 patients with definite time window were selected,and they were named as the experimental and control groups,given different examination methods,were given to investigate the clinical treatment effect.Results:Patients’data on HIHSS score before treatment,the incidence of intracranial hemorrhage and rate of Mrs≤2 rating after 90 days of treatment were not significantly different(P>0.05),which was not meaningful.The differences in data between the two groups concerning HIHSS scores were relatively significant before,and after treatment(P<0.05).Conclusion:The magnetic resonance double mismatch technique will be applied in the endovascular treatment of acute anterior circulation large vessel occlusion with cerebral infarction of unknown time window.展开更多
Objective To investigate the influencing factors for prehospital delay in patients with acute myocardial infarction (AMI). Methods A total of 807 consecutive patients with AMI who presented to the emergency department...Objective To investigate the influencing factors for prehospital delay in patients with acute myocardial infarction (AMI). Methods A total of 807 consecutive patients with AMI who presented to the emergency department of Beijing Anzhen Hospital were analyzed. The influence of several potential risk factors on the prehospital delay time (PDT) was evaluated by comparing patients admitted more than 2 hours after onset of chese pain with those admitted within 2 hours after onset. Results Among 807 patients, 402 came to the hospital within 2 hours while the others arrived at the hospital after 2 hours. The median PDT was 130 min. Among the potential variables, advanced age, history of diabetes mellitus, occurrence of symptom at night and use of emergency medical service significantly affected PDT by multivariate analysis. Conclusion Interventions aimed at reducing the prehospital delay in AMI should primarily focus on the awareness of the risk and help-seeking behavior of patients.展开更多
Objective:To explore the effect of establishing a WeChat platform for a chest pain center as a medium to increase the treatment speed and improve the prognosis of patients with acute ST-segment elevation myocardial in...Objective:To explore the effect of establishing a WeChat platform for a chest pain center as a medium to increase the treatment speed and improve the prognosis of patients with acute ST-segment elevation myocardial infarction(STEMI)undergoing primary percutaneous coronary intervention(PPCI).Methods:The chest pain center,established by the creation of a WeChat group,included primary hospitals in Chongqing that are not able to perform PPCI and the First Affi liated Hospital of Chongqing Medical University,which is the core of the center and which includes medical staff of the catheter laboratory,the cardiology department,the emergency,the vascular surgery department,and the cardiothoracic surgery department.Patients with acute STEMI who underwent PPCI from January 2017 to November 2018 in the First Affi liated Hospital of Chongqing Medical University were enrolled.The patients(including emergency department visitors,120 callers,and patients transferred from the critical care unit or other departments)were divided into a WeChat pre-admission startup group(n=311)and a non-WeChat pre-admission startup group(control group,n=172).Patients’door-to-balloon time,standard door-toballoon time achievement rate,artery puncture to balloon dilation time,heart failure rate,length of stay,and incidence of adverse events(including fatal arrhythmia,cardiogenic shock,and death)during hospitalization were compared between the two groups.Results:Four hundred eight-three consecutive patients were enrolled.There was no signifi cant difference in patients’sex,age,length of stay,and cardiovascular events during hospitalization between the two groups(P>0.05).The door-to-balloon time of the patients in the WeChat pre-admission startup group was much shorter than that of patients in the non-WeChat pre-admission startup group(27.35±10.58 min vs.88.15±53.79 min,P<0.05).The standard door-to-balloon time achievement rate was signifi cantly higher in the WeChat pre-admission startup group than in the non-WeChat pre-admission startup group(100%vs.72.09%,P<0.05).Conclusion:The application of a WeChat platform signifi cantly shortened the door-to-balloon time of patients receiving PPCI and increased the standard door-to-balloon time achievement rate for patients with STEMI.In addition,the platform is also conducive to integrating medical resources and sharing medical information.The establishment of the platform increased the treatment speed and improved the prognosis of patients with STEMI.展开更多
Background Key performance indices such as door-to-balloon times have long been recognized as quality metrics in reducing time to care for patients with acute coronary syndromes(ACS). In the situation where patients d...Background Key performance indices such as door-to-balloon times have long been recognized as quality metrics in reducing time to care for patients with acute coronary syndromes(ACS). In the situation where patients do not present to a facility capable of 24/7 percutaneous coronary interventions(PCI) delays in time to therapy can exceed the recommendation of 90 min or less. This study aimed to evaluate the impact of transfers on performance indices for patients diagnosed with ST-segment elevation myocardial infarction(STEMI). Methods Over a seven month collection period, all patients presenting with symptoms suggestive of ACS and admitted for PCI were studied. Patients were divided into dichotomous groups of direct presentations or transfers from a secondary non-PCI capable hospital with key times recorded, including symptom-onset, first hospital and PCI-capable hospital arrival and balloon inflation times to evaluate time of treatment for STEMI patients. Results Of the 87 patients diagnosed with STEMI, transferred patients experienced statistically significant delays in symptom-onset to the PCI-capable hospital(PCI-H) arrival(215 vs. 95 min, P < 0.001), symptom-onset to balloon inflation(225 vs. 160 min, P = 0.009) and first hospital arrival to balloon inflation times(106 vs. 56 min, P < 0.001). Only 28%(n = 9) of transferred patients underwent balloon inflation within 90 min from first hospital arrival, while 60%(n = 19) did within 120 min, although all received balloon inflation within 90 min from arrival at the PCI-H. After controlling for confounding factors of socio-economic status, presentation date/time and diagnostic category, transferred patients experienced an average 162% longer delays from symptom-onset to PCI-H door arrival, and 98% longer delays in symptom-onset to balloon inflation;compared to patients who present directly to the PCI-H. No statistically significant differences were noted between transferred and direct patients when measured from PCI-H door-to-balloon times. Conclusions This study shows that transferred patients experience a greater overall system delay, compared to patients who present directly for PCI, significantly increasing their time to treatment and therefore infarct times. Despite the majority of transfers experiencing pre-hospital activation, their treatment hospital arrival to balloon times are no less than direct presenters after controlling for confounding factors, further compounding the overall delay to therapy.展开更多
Background Primary percutaneous coronary intervention （PCI） has been clearly identified as the first therapeutic option for patients with acute ST-segment elevation myocardial infarction （STEMI）. The importance of...Background Primary percutaneous coronary intervention （PCI） has been clearly identified as the first therapeutic option for patients with acute ST-segment elevation myocardial infarction （STEMI）. The importance of reducing door-to-balloon （D2B） time has gained increased recognition. This study aimed to assess the feasibility, safety and efficacy of the strategy of direct ambulance transportation of patients with acute STEMI to catheterization lab to receive primary PCI.Methods The study population included 141 consecutive patients with chest pain and ST-segment elevation who were admitted to the catheterization laboratory directly by the ambulance and underwent primary PCI （DIRECT group）.Another 145 patients with STEMI randomly selected from the PCI database, were served as control group （conventional group）; they were transported to catheterization laboratory from emergency room （ER）. The primary endpoint of D2B time,and secondary endpoint of in-hospital and 30-day major adverse cardiac events （MACE, including death, non-fatal reinfarction, and target vessel revascularization） were compared.Results Baseline and procedural characteristics between the two groups were comparable, except more patients in the DIRECT group presented TIMI 0-1 flow in culprit vessel at initial angiogram （80.1% and 73.8%, P=0.04）. Comparing to conventional group, the primary endpoint of D2B time was reduced （（54±18） minutes and （112±55） minutes, P 〈0.0001）and the percentage of patients with D2B 〈90 minutes was increased in the DIRECT group （96.9% and 27.0%, P〈0.0001）.The success rate of primary PCI with stent implantation with final Thrombolysis in Myocardial Infarction （TIMI） 3 flow was significantly higher in the DIRECT group （93.8% and 85.2%, P=0.03）. Although no significant difference was found at 30-day MACE free survival rate between the two groups （95.0% and 89.0%, P=0.06）, a trend in improving survival status in the DIRECT group was demonstrated by Kaplan-Meier analysis.Conclusion Direct ambulance transport of STEMI patients to the catheterization laboratory could significantly reduce D2B time and improve success rate of primary PCI and 30-day clinical outcomes.展开更多
Background:Ventricular remodeling after acute anterior wall ST-segment elevation myocardial infarction(AAMI)is an important factor in occurrence of heart failure which additionally results in poor prognosis.Therefore,...Background:Ventricular remodeling after acute anterior wall ST-segment elevation myocardial infarction(AAMI)is an important factor in occurrence of heart failure which additionally results in poor prognosis.Therefore,the treatment of ventricular remodeling needs to be further optimized.Compound Danshen Dripping Pills(CDDP),a traditional Chinese medicine,exerts a protective effect on microcirculatory disturbance caused by ischemia-reperfusion injury and attenuates ventricular remodeling after myocardial infarction.Objective:This study is designed to evaluate the efficacy and safety of CDDP in improving ventricular remodeling and cardiac function after AAMI on a larger scale.Methods:This study is a multi-center,randomized,doubleblind,placebo-controlled,parallel-group clinical trial.The total of 268 patients with AAMI after primary percutaneous coronary intervention(pPCI)will be randomly assigned 1:1 to the CDDP group(n=134)and control group(n=134)with a follow-up of 48 weeks.Both groups will be treated with standard therapy of ST-segment elevation myocardial infarction(STEMI),with the CDDP group administrating 20 tablets of CDDP before pPCI and 10 tablets 3 times daily after pPCI,and the control group treated with a placebo simultaneously.The primary endpoint is 48-week echocardiographic outcomes including left ventricular ejection fraction(LVEF),left ventricular end-diastolic volume index(LVEDVI),and left ventricular end-systolic volume index(LVESVI).The secondary endpoint includes the change in N terminal pro-B-type natriuretic peptide(NT-proBNP)level,arrhythmias,and cardiovascular events(death,cardiac arrest,or cardiopulmonary resuscitation,rehospitalization due to heart failure or angina pectoris,deterioration of cardiac function,and stroke).Investigators and patients are both blinded to the allocated treatment.Discussion:This prospective study will investigate the efficacy and safety of CDDP in improving ventricular remodeling and cardiac function in patients undergoing pPCI for a first AAMI.Patients in the CDDP group will be compared with those in the control group.If certified to be effective,CDDP treatment in AAMI will probably be advised on a larger scale.(Trial registration No.NCT05000411)展开更多
目的探讨依洛尤单抗对急性广泛前壁心肌梗死经皮冠状动脉介入治疗(percutaneous coronary intervention,PCI)术后血脂和左心功能的影响。方法回顾性分析2021年1月至2023年7月于聊城市人民医院就诊的急性广泛前壁心肌梗死并行急诊PCI的患...目的探讨依洛尤单抗对急性广泛前壁心肌梗死经皮冠状动脉介入治疗(percutaneous coronary intervention,PCI)术后血脂和左心功能的影响。方法回顾性分析2021年1月至2023年7月于聊城市人民医院就诊的急性广泛前壁心肌梗死并行急诊PCI的患者52例,根据患者的术后的调脂方案分为两组,其中单纯服用瑞舒伐他汀者为对照组,共24例;联合瑞舒伐他汀和依洛尤单抗治疗者为观察组,共28例。分别于术前及术后6个月测定患者血总胆固醇(TC),甘油三酯(TG),低密度脂蛋白(LDL),高密度脂蛋白(HDL),C反应蛋白(CRP),B型钠尿肽(BNP)。行心脏彩超检查测定左室射血分数(LVEF),左室舒张末内径(LVEDD)。结果术后6个月,与对照组相比,观察组TC(3.28±0.73mmol/L vs 4.45±0.99mmol/L,t=-4.90,P<0.001)、TG(1.09±0.33mmol/L vs 1.61±1.07mmol/L,t=-2.44,P=0.02)、LDL(1.18±0.12mmol/L vs 2.05±0.35mmol/L,t=-11.59,P<0.001)、BNP(263.57±119.12pg/mL vs 575.58±219.99pg/mL,t=-6.21,P<0.001)、CRP(1.19±1.03mg/L vs 1.74±0.66mg/L,t=-2.23,P=0.02)明显降低,HDL(1.97±0.34mmo/L vs 1.66±0.29mmol/L,t=3.472,P=0.001)明显升高,LVEDD(35.57±2.83mm vs 40.83±4.35mm,t=-5.074,P<0.001)明显缩小,LVEF[(59.36±6.92%)vs(52.50±7.96%),t=3.32,P=0.002]明显升高。结论在急性广泛前壁心肌梗死中联合应用依洛尤单抗和他汀类药物可进一步显著降低患者的血脂和炎症水平,而且能进一步改善患者左心室功能。展开更多
Background Primary percutaneous coronary intervention （PCI） has been identified as the first therapeutic option for patients with acute ST-segment elevation myocardial infarction （STEMI）. The strategy of transferr...Background Primary percutaneous coronary intervention （PCI） has been identified as the first therapeutic option for patients with acute ST-segment elevation myocardial infarction （STEMI）. The strategy of transferring patient to a PCI center was recently recommended for those with acute STEMI who were present to PCI incapable hospitals, which include lack of facilities or experienced operators. In China, some local hospitals have been equipped with PCI facilities, but they have no interventional physicians qualified for performing primary PCI. This study was conducted to assess the feasibility, safety and efficacy of the strategy of transferring physician to a PCI-equipped hospital to perform primary PCI for patients with acute STEMI. Methods Three hundred and thirty-four consecutive STEMI patients with symptom presentation 〈12 hours in five local hospitals from November 2005 to November 2007 were randomized to receive primary PCI by either physician transfer （physician transfer group, n=165） or patient transfer （patient transfer group, n=169） strategy. Door-to-balloon time, in-hospital and 30-day major adverse cardiac events （MACE, including death, non-fatal re-infarction, and target vessel revascularization） were compared between the two groups. Results Baseline characteristics between the two groups were comparable. Thrombolysis in myocardial infarction （TIMI） 3 flow was revealed in more patients in the physician transfer group at initial angiography （17.6% vs 10.1%, P〈0.05）. The success rate of primary PCI （96.3% vs 95.4%, P〉0.05） and length of hospital stay were similar between the two groups （（15±4） days vs （14±3） days, P〉0.05）. In the physician transfer group, door-to-balloon time was significantly shortened （（95±20） minutes vs （147±29） minutes, P〈0.0001） and more patients received primary PCI with door-to-balloon time less than 90 minutes （21.2% vs 7.7%, P〈0.001）. During hospitalization, MACE occurred in 6.7% and 11.2% of patients in the physician and patient transfer groups, respectively （P=0.14）. At 30-day clinical follow-up, the occurrence rates of death, non-fatal re-infarction, and target vessel revascularization （TVR） were 3.6% vs 5.9%, 4.2% vs 8.9%, and 1.2% vs 2.4% in the physician and patient transfer groups, respectively （all P〉0.05）. The cumulative composite of MACE was significantly reduced （8.9% vs 17.2%, P=0.03） and MACE free survival （91.0% vs 82.9%, P〈0.05） was significantly improved in the physician transfer group at 30 days. Conclusion The strategy of transferring physician to local hospital to perform primary PCI for patients with acute STEMI is feasible,safe and efficient in reducing the door-to-balloon time and 30-day MACE rate.展开更多
文摘The best time of stem cells transplantation for treating acute myocardial infarction (AMI) is still to be followed with interest and a focus issue for clinical cardiologist. A brief meta-analysis of clinical trials about timing-window and therapeutic effects of stem cell transplantation for treating AMI will be made out in this article.
文摘Background Increased levels of inflammatory markers have been documented in various settings of coronary artery disease. The vulnerability of coronary lesions in acute myocardial infarction(AMI) at the time of onset may be related to serum levels of C reactive protein(CRP) on admission, before CRP levels are affected by myocardial damage.Objective This study assessed the predictive value of CRP levels within six hours after the onset of acute anterior myocardial infarction with primary percutaneous coronary intervention(PCI).Methods The plasma CRP of 76 patients with first acute anterior myocardial infarction was measured within 6 hours after onset. They were divided into 2 groups: group 1( n =20) with elevated CRP( ≥0.3mg/dl ) on admission within 6 hours after onset and group 2( n =56) with normal CRP( <0.3mg/dl ) within 6 hours after onset. All patients were treated by primary PCI. The primary combined end points, including death due to cardiac causes, re MI related to the infarction artery(RIA) and repeat intervention of the RIA, and the restenosis rate were assessed in relation to CRP levels within 6 hours after onset. Left ventricular end diastolic volume index(EDVI),end systolic volume index(ESVI),and ejection fraction(EF) on admission and 6 month after the onset were assessed by left ventriculography. Changes in EDVI(ΔEDVI),ESVI(ΔESVI), and EF(ΔEF) were obtained by subtracting respective on admission values from corresponding 6 month follow up values. Results There were no significant differences in baseline characteristics between the two groups. The primary combined end points were significantly more frequent in group 1(20%) than those in group 2( 1.79% , P <0.01 ).In addition, restenosis rates were significantly higher in group 1 than in group 2(41.18% vs 16.07%, P<0.05). Group 1 showed greater increases in left ventricular volume and less improvement in EF compared with group 2(ΔEDVI 6.31 ±2.17 vs 3.29 ±9.46ml/m 2 , ΔESVI 5.92 ±2.31 vs 3.86 ±1.08ml/m 2 , ΔEF 1.92 ±0.47 vs 4.79 ±1.73% , P <0.05 , respectively).Conclusions CRP levels within 6 hours after the onset of AMI might predict adverse outcome after primary PCI and progressive ventricular remodeling within 6 month of AMI.
文摘Objective:To investigate the clinical effects of applying the magnetic resonance double mismatch technique to endovascular treatment of acute anterior circulation,large vessel occlusion with cerebral infarction in an unknown time window.Methods:The research work was carried out in our hospital,the work was carried out from November 2018 to November 2019,the patients with acute anterior circulation large vessel occlusion with cerebral infarction who were treated in our hospital during this period,100 patients,50 patients with an unknown time window and 50 patients with definite time window were selected,and they were named as the experimental and control groups,given different examination methods,were given to investigate the clinical treatment effect.Results:Patients’data on HIHSS score before treatment,the incidence of intracranial hemorrhage and rate of Mrs≤2 rating after 90 days of treatment were not significantly different(P>0.05),which was not meaningful.The differences in data between the two groups concerning HIHSS scores were relatively significant before,and after treatment(P<0.05).Conclusion:The magnetic resonance double mismatch technique will be applied in the endovascular treatment of acute anterior circulation large vessel occlusion with cerebral infarction of unknown time window.
文摘Objective To investigate the influencing factors for prehospital delay in patients with acute myocardial infarction (AMI). Methods A total of 807 consecutive patients with AMI who presented to the emergency department of Beijing Anzhen Hospital were analyzed. The influence of several potential risk factors on the prehospital delay time (PDT) was evaluated by comparing patients admitted more than 2 hours after onset of chese pain with those admitted within 2 hours after onset. Results Among 807 patients, 402 came to the hospital within 2 hours while the others arrived at the hospital after 2 hours. The median PDT was 130 min. Among the potential variables, advanced age, history of diabetes mellitus, occurrence of symptom at night and use of emergency medical service significantly affected PDT by multivariate analysis. Conclusion Interventions aimed at reducing the prehospital delay in AMI should primarily focus on the awareness of the risk and help-seeking behavior of patients.
文摘Objective:To explore the effect of establishing a WeChat platform for a chest pain center as a medium to increase the treatment speed and improve the prognosis of patients with acute ST-segment elevation myocardial infarction(STEMI)undergoing primary percutaneous coronary intervention(PPCI).Methods:The chest pain center,established by the creation of a WeChat group,included primary hospitals in Chongqing that are not able to perform PPCI and the First Affi liated Hospital of Chongqing Medical University,which is the core of the center and which includes medical staff of the catheter laboratory,the cardiology department,the emergency,the vascular surgery department,and the cardiothoracic surgery department.Patients with acute STEMI who underwent PPCI from January 2017 to November 2018 in the First Affi liated Hospital of Chongqing Medical University were enrolled.The patients(including emergency department visitors,120 callers,and patients transferred from the critical care unit or other departments)were divided into a WeChat pre-admission startup group(n=311)and a non-WeChat pre-admission startup group(control group,n=172).Patients’door-to-balloon time,standard door-toballoon time achievement rate,artery puncture to balloon dilation time,heart failure rate,length of stay,and incidence of adverse events(including fatal arrhythmia,cardiogenic shock,and death)during hospitalization were compared between the two groups.Results:Four hundred eight-three consecutive patients were enrolled.There was no signifi cant difference in patients’sex,age,length of stay,and cardiovascular events during hospitalization between the two groups(P>0.05).The door-to-balloon time of the patients in the WeChat pre-admission startup group was much shorter than that of patients in the non-WeChat pre-admission startup group(27.35±10.58 min vs.88.15±53.79 min,P<0.05).The standard door-to-balloon time achievement rate was signifi cantly higher in the WeChat pre-admission startup group than in the non-WeChat pre-admission startup group(100%vs.72.09%,P<0.05).Conclusion:The application of a WeChat platform signifi cantly shortened the door-to-balloon time of patients receiving PPCI and increased the standard door-to-balloon time achievement rate for patients with STEMI.In addition,the platform is also conducive to integrating medical resources and sharing medical information.The establishment of the platform increased the treatment speed and improved the prognosis of patients with STEMI.
文摘Background Key performance indices such as door-to-balloon times have long been recognized as quality metrics in reducing time to care for patients with acute coronary syndromes(ACS). In the situation where patients do not present to a facility capable of 24/7 percutaneous coronary interventions(PCI) delays in time to therapy can exceed the recommendation of 90 min or less. This study aimed to evaluate the impact of transfers on performance indices for patients diagnosed with ST-segment elevation myocardial infarction(STEMI). Methods Over a seven month collection period, all patients presenting with symptoms suggestive of ACS and admitted for PCI were studied. Patients were divided into dichotomous groups of direct presentations or transfers from a secondary non-PCI capable hospital with key times recorded, including symptom-onset, first hospital and PCI-capable hospital arrival and balloon inflation times to evaluate time of treatment for STEMI patients. Results Of the 87 patients diagnosed with STEMI, transferred patients experienced statistically significant delays in symptom-onset to the PCI-capable hospital(PCI-H) arrival(215 vs. 95 min, P < 0.001), symptom-onset to balloon inflation(225 vs. 160 min, P = 0.009) and first hospital arrival to balloon inflation times(106 vs. 56 min, P < 0.001). Only 28%(n = 9) of transferred patients underwent balloon inflation within 90 min from first hospital arrival, while 60%(n = 19) did within 120 min, although all received balloon inflation within 90 min from arrival at the PCI-H. After controlling for confounding factors of socio-economic status, presentation date/time and diagnostic category, transferred patients experienced an average 162% longer delays from symptom-onset to PCI-H door arrival, and 98% longer delays in symptom-onset to balloon inflation;compared to patients who present directly to the PCI-H. No statistically significant differences were noted between transferred and direct patients when measured from PCI-H door-to-balloon times. Conclusions This study shows that transferred patients experience a greater overall system delay, compared to patients who present directly for PCI, significantly increasing their time to treatment and therefore infarct times. Despite the majority of transfers experiencing pre-hospital activation, their treatment hospital arrival to balloon times are no less than direct presenters after controlling for confounding factors, further compounding the overall delay to therapy.
基金This work was supported by the grants from Shanghai Science and Technology Foundation （No. 05DZ19503）, Health Bureau of Shanghai Pudong New Area （No.PWZxk-2010-05） and National Natural Science Foundation of China （No. 30900589）.
文摘Background Primary percutaneous coronary intervention （PCI） has been clearly identified as the first therapeutic option for patients with acute ST-segment elevation myocardial infarction （STEMI）. The importance of reducing door-to-balloon （D2B） time has gained increased recognition. This study aimed to assess the feasibility, safety and efficacy of the strategy of direct ambulance transportation of patients with acute STEMI to catheterization lab to receive primary PCI.Methods The study population included 141 consecutive patients with chest pain and ST-segment elevation who were admitted to the catheterization laboratory directly by the ambulance and underwent primary PCI （DIRECT group）.Another 145 patients with STEMI randomly selected from the PCI database, were served as control group （conventional group）; they were transported to catheterization laboratory from emergency room （ER）. The primary endpoint of D2B time,and secondary endpoint of in-hospital and 30-day major adverse cardiac events （MACE, including death, non-fatal reinfarction, and target vessel revascularization） were compared.Results Baseline and procedural characteristics between the two groups were comparable, except more patients in the DIRECT group presented TIMI 0-1 flow in culprit vessel at initial angiogram （80.1% and 73.8%, P=0.04）. Comparing to conventional group, the primary endpoint of D2B time was reduced （（54±18） minutes and （112±55） minutes, P 〈0.0001）and the percentage of patients with D2B 〈90 minutes was increased in the DIRECT group （96.9% and 27.0%, P〈0.0001）.The success rate of primary PCI with stent implantation with final Thrombolysis in Myocardial Infarction （TIMI） 3 flow was significantly higher in the DIRECT group （93.8% and 85.2%, P=0.03）. Although no significant difference was found at 30-day MACE free survival rate between the two groups （95.0% and 89.0%, P=0.06）, a trend in improving survival status in the DIRECT group was demonstrated by Kaplan-Meier analysis.Conclusion Direct ambulance transport of STEMI patients to the catheterization laboratory could significantly reduce D2B time and improve success rate of primary PCI and 30-day clinical outcomes.
基金Supported by Tasly Pharmaceutical Group Co.,Ltd. (No.303100031BA20)。
文摘Background:Ventricular remodeling after acute anterior wall ST-segment elevation myocardial infarction(AAMI)is an important factor in occurrence of heart failure which additionally results in poor prognosis.Therefore,the treatment of ventricular remodeling needs to be further optimized.Compound Danshen Dripping Pills(CDDP),a traditional Chinese medicine,exerts a protective effect on microcirculatory disturbance caused by ischemia-reperfusion injury and attenuates ventricular remodeling after myocardial infarction.Objective:This study is designed to evaluate the efficacy and safety of CDDP in improving ventricular remodeling and cardiac function after AAMI on a larger scale.Methods:This study is a multi-center,randomized,doubleblind,placebo-controlled,parallel-group clinical trial.The total of 268 patients with AAMI after primary percutaneous coronary intervention(pPCI)will be randomly assigned 1:1 to the CDDP group(n=134)and control group(n=134)with a follow-up of 48 weeks.Both groups will be treated with standard therapy of ST-segment elevation myocardial infarction(STEMI),with the CDDP group administrating 20 tablets of CDDP before pPCI and 10 tablets 3 times daily after pPCI,and the control group treated with a placebo simultaneously.The primary endpoint is 48-week echocardiographic outcomes including left ventricular ejection fraction(LVEF),left ventricular end-diastolic volume index(LVEDVI),and left ventricular end-systolic volume index(LVESVI).The secondary endpoint includes the change in N terminal pro-B-type natriuretic peptide(NT-proBNP)level,arrhythmias,and cardiovascular events(death,cardiac arrest,or cardiopulmonary resuscitation,rehospitalization due to heart failure or angina pectoris,deterioration of cardiac function,and stroke).Investigators and patients are both blinded to the allocated treatment.Discussion:This prospective study will investigate the efficacy and safety of CDDP in improving ventricular remodeling and cardiac function in patients undergoing pPCI for a first AAMI.Patients in the CDDP group will be compared with those in the control group.If certified to be effective,CDDP treatment in AAMI will probably be advised on a larger scale.(Trial registration No.NCT05000411)
文摘目的探讨依洛尤单抗对急性广泛前壁心肌梗死经皮冠状动脉介入治疗(percutaneous coronary intervention,PCI)术后血脂和左心功能的影响。方法回顾性分析2021年1月至2023年7月于聊城市人民医院就诊的急性广泛前壁心肌梗死并行急诊PCI的患者52例,根据患者的术后的调脂方案分为两组,其中单纯服用瑞舒伐他汀者为对照组,共24例;联合瑞舒伐他汀和依洛尤单抗治疗者为观察组,共28例。分别于术前及术后6个月测定患者血总胆固醇(TC),甘油三酯(TG),低密度脂蛋白(LDL),高密度脂蛋白(HDL),C反应蛋白(CRP),B型钠尿肽(BNP)。行心脏彩超检查测定左室射血分数(LVEF),左室舒张末内径(LVEDD)。结果术后6个月,与对照组相比,观察组TC(3.28±0.73mmol/L vs 4.45±0.99mmol/L,t=-4.90,P<0.001)、TG(1.09±0.33mmol/L vs 1.61±1.07mmol/L,t=-2.44,P=0.02)、LDL(1.18±0.12mmol/L vs 2.05±0.35mmol/L,t=-11.59,P<0.001)、BNP(263.57±119.12pg/mL vs 575.58±219.99pg/mL,t=-6.21,P<0.001)、CRP(1.19±1.03mg/L vs 1.74±0.66mg/L,t=-2.23,P=0.02)明显降低,HDL(1.97±0.34mmo/L vs 1.66±0.29mmol/L,t=3.472,P=0.001)明显升高,LVEDD(35.57±2.83mm vs 40.83±4.35mm,t=-5.074,P<0.001)明显缩小,LVEF[(59.36±6.92%)vs(52.50±7.96%),t=3.32,P=0.002]明显升高。结论在急性广泛前壁心肌梗死中联合应用依洛尤单抗和他汀类药物可进一步显著降低患者的血脂和炎症水平,而且能进一步改善患者左心室功能。
文摘Background Primary percutaneous coronary intervention （PCI） has been identified as the first therapeutic option for patients with acute ST-segment elevation myocardial infarction （STEMI）. The strategy of transferring patient to a PCI center was recently recommended for those with acute STEMI who were present to PCI incapable hospitals, which include lack of facilities or experienced operators. In China, some local hospitals have been equipped with PCI facilities, but they have no interventional physicians qualified for performing primary PCI. This study was conducted to assess the feasibility, safety and efficacy of the strategy of transferring physician to a PCI-equipped hospital to perform primary PCI for patients with acute STEMI. Methods Three hundred and thirty-four consecutive STEMI patients with symptom presentation 〈12 hours in five local hospitals from November 2005 to November 2007 were randomized to receive primary PCI by either physician transfer （physician transfer group, n=165） or patient transfer （patient transfer group, n=169） strategy. Door-to-balloon time, in-hospital and 30-day major adverse cardiac events （MACE, including death, non-fatal re-infarction, and target vessel revascularization） were compared between the two groups. Results Baseline characteristics between the two groups were comparable. Thrombolysis in myocardial infarction （TIMI） 3 flow was revealed in more patients in the physician transfer group at initial angiography （17.6% vs 10.1%, P〈0.05）. The success rate of primary PCI （96.3% vs 95.4%, P〉0.05） and length of hospital stay were similar between the two groups （（15±4） days vs （14±3） days, P〉0.05）. In the physician transfer group, door-to-balloon time was significantly shortened （（95±20） minutes vs （147±29） minutes, P〈0.0001） and more patients received primary PCI with door-to-balloon time less than 90 minutes （21.2% vs 7.7%, P〈0.001）. During hospitalization, MACE occurred in 6.7% and 11.2% of patients in the physician and patient transfer groups, respectively （P=0.14）. At 30-day clinical follow-up, the occurrence rates of death, non-fatal re-infarction, and target vessel revascularization （TVR） were 3.6% vs 5.9%, 4.2% vs 8.9%, and 1.2% vs 2.4% in the physician and patient transfer groups, respectively （all P〉0.05）. The cumulative composite of MACE was significantly reduced （8.9% vs 17.2%, P=0.03） and MACE free survival （91.0% vs 82.9%, P〈0.05） was significantly improved in the physician transfer group at 30 days. Conclusion The strategy of transferring physician to local hospital to perform primary PCI for patients with acute STEMI is feasible,safe and efficient in reducing the door-to-balloon time and 30-day MACE rate.
