不同来院方式急性ST段抬高心肌梗死患者再灌注时间及院内死亡危险因素分析

Effects of different admission modes on reperfusion time and risk factors of in-hospital death in patients with acute ST-segment elevation myocardial infarction

目的:探讨胸痛中心(CPC)模式下不同来院方式对急性ST段抬高型心肌梗死(STEMI)患者再灌注时间及院内不良事件发生的影响。方法:根据来院方式不同将1416例接受直接经皮冠状动脉介入治疗(PPCI)的STEMI患者分为120现场接送组(67例)、外院转运组(383例)和自行来院组(966例)。比较各组患者的临床特征及再灌注时间,并对不同来院方式患者的院内不良事件(急性左心衰、院内死亡)发生情况进行回归分析。结果:所有患者平均年龄为(61.57±11.08)岁,发病-首次医疗接触(S2FMC)中位时间为160.0(79.8,338.5)min、发病-球囊开通(S2B)中位时间为258.0(168.0,457.0)min,3组比较,通过120救护车来院患者的上述过程时间较外院转运和自行来院组短(均P<0.01)。所有患者肌钙蛋白抽血-出结果中位时间为17.0(15.0,19.0)min、知情同意开始-签署完成中位时间为4.0(2.0,6.0)min,3组比较,自行来院组患者的上述过程用时均较外院转运组长(均P<0.01)。所有患者的大门-球囊开通(D2B)中位时间为52.0(44.0,63.0)min,不同来院方式的患者D2B时间基本相同(P=0.493),D2B时间>90 min的比例在各组间无显著统计学差异(P=0.631)。多因素logistic回归分析显示,调整性别、年龄、糖尿病史、高血压史、Killip分级、入院时收缩压后,外院转运(OR:3.50,95%CI:1.95~6.31,P<0.001)和自行来院(OR:11.62,95%CI:6.53~20.68,P<0.001)的患者较120救护车现场接送的患者更易出现S2FMC时间≥90 min。120救护车现场接送组、外院转运组和自行来院组患者院内死亡发生率分别为4.5%、1.3%、0.9%(P=0.035),急性左心衰发生率分别为3.0%、5.7%、4.7%(P=0.538)。调整性别、年龄、Killip分级、入院时收缩压、吸烟史、病变血管数后,不同来院方式的STEMI患者院内死亡发生率差异无统计学意义(P>0.05)。结论:不同来院方式STEMI患者院内死亡发生率无显著差异,但通过120救护车现场接送入院的STEMI患者的总缺血时间最短。为改善和提高我国急性胸痛患者的预后,仍需不断优化和改进STEMI救治流程,进一步缩短患者从症状发生到再灌注治疗的时间。

Objective:To assess the effect of different admission modes on reperfusion time and the related risk factors of nosocomial adverse events of patients with acute ST-elevation myocardial infarction(STEMI)under the chest pain center(CPC)model.Methods:1416 cases STEMI patients receiving PPCI were divided into 120 on-site transfer group(67 cases),transfer group(383 cases),and self-admission group(966 cases)according to different admission modes to the hospital.The clinical characteristics and reperfusion time of patients in each group were compared,and the incidence of nosocomial adverse events(acute left heart failure,nosocomial death)in patients with different admission modes were analyzed by regression.Results:The mean age of all patients was(61.57±11.08)years,the median time of S2 FMC was 160.0(79.8,338.5)min,the median time of S2 B was 258.0(168.0,457.0)min.Compared with the three groups,the above process time of patients who came to the hospital by 120 ambulance was shorter than that of patients who came to the hospital by themselves(P<0.01).The time from blood drawing to the result of troponin was 17.0(15.0,19.0)min,and the time from the beginning of informed consent to the completion of informed consent was 4.0(2.0,6.0)min.Compared with the three groups,the patients in the self-admission group had the longest time in the above process(all P<0.01).The D2 B time of all patients was 52.0(44.0,63.0)min,and the D2 B time of patients with different transfer pathways was the same(P=0.493).The ratio of D2 B>90 min was the same among all groups(P=0.631).After adjusting for sex,age,diabetes,hypertension,Killip grade,systolic blood pressure,referral to the hospital(OR:3.50,95%CI:1.95-6.31,P<0.001)and self-admission(OR:11.62,95%CI:6.53-20.68,P<0.001)patients were more likely to develop S2 FMC time≥90 min than patients admitted by 120 ambulances.The incidence of acute left heart failure was 3.0%in the 120 ambulance group,5.7%in the transfer group,and 4.7%in the self-admission group(P=0.538),and the incidence of in-hospital death was 4.5%,1.3%,and 0.9%(P=0.035),respectively.After adjusting gender,age,Killip grade,systolic blood pressure,smoking,and number of pathological vessels,there was no significant difference in the incidence of in-hospital death among STEMI patients with different admission methods(all P>0.05).Conclusion:There was no significant difference in the incidence of in-hospital death among STEMI patients with different admission modes,and the total ischemic time of STEMI patients admitted by 120 ambulance was the shortest.To improve the prognosis of patients with acute chest pain in China,it is necessary to continuously optimize the STEMI treatment process and further shorten the time from symptom occurrence to reperfusion therapy.