单核细胞计数与高密度脂蛋白胆固醇比值评价老年急性心肌梗死患者冠状动脉介入术后ST段回落不良的观察

目的探讨单核细胞计数与高密度脂蛋白胆固醇比值(MHR)评价老年急性ST段抬高型心肌梗死(STEMI)患者经皮冠状动脉介入术(PCI)后ST段回落不良的临床意义。方法回顾性病例对照研究,收集2015年12月至2018年12月我院收治的接受直接PCI治疗的老年STEMI患者274例的临床资料,按术后心电图ST段回落情况分为ST段回落不良组79例和良好组195例,比较两组患者临床资料,采用Logistic回归分析MHR与ST段回落不良的关系,并绘制受试者工作特征(ROC)曲线分析MHR预测STEMI患者ST段回落不良临床价值。结果与ST段回落良好组患者比较,ST段回落不良组患者前壁心肌梗死、Killip分级≥2级比例高,胸痛到球囊扩张时间长,入院时肌酸激酶同工酶、N末端脑钠肽前体、超敏C反应蛋白、血糖、血尿酸、纤维蛋白原、三酰甘油、单核细胞计数高,高密度脂蛋白胆固醇、淋巴细胞计数较低(均P<0.05)。ST段回落不良组患者MHR为0.75±0.22,高于ST段回落良好组患者的0.48±0.19(t=9.831,P=0.001)。多元Logistic回归分析,MHR是老年STEMI患者PCI后ST段回落不良的独立危险因素(OR=1.950,95%CI:1.646~5.430,P=0.003)。ROC曲线显示,MHR预测STEMI患者ST段回落不良的曲线下面积为0.867,敏感度为79.72%,特异度为79.61%,最佳诊断值为0.64。结论MHR可能是老年STEMI患者PCI术后ST段回落不良独立危险因素,有良好的预测价值。

Clinical significance of the monocyte to high-density lipoprotein cholesterol ratio in the assessment of imperfect ST-segment resolution in elderly patients with acute ST-elevation myocardial infarction after percutaneous coronary intervention

Objective To investigate the clinical significance of the monocyte count/high-density lipoprotein cholesterol ratio(MHR)in evaluating imperfect ST-segment resolution in elderly patients with acute ST-elevation myocardial infarction(STEMI)after percutaneous coronary intervention(PCI).Methods This was a retrospective cohort study.A total of 274 elderly patients with STEMI underwent PCI in our hospital from December 2015 to December 2018 were enrolled.Based on the extent of the ST-segment resolution of the postoperative electrocardiogram,patients were divided into an imperfect ST-segment resolution group(observation group,n=79)and a favorable ST-segment resolution group(control group,n=195).General clinical data were compared between the two groups,and logistic regression equation was used to analyze the association of MHR with ST-segment resolution.Receiver operating characteristic(ROC)curve was performed to assess the predictive value of MHR for imperfect ST-segment resolution.Results Compared with patients in the control group,patients in the observation group were associated with a significantly higher proportion of anterior wall myocardial infarction and heart failure(≥Killip 2),A longer duration of chest pain to balloon expansion,higher levels of creatine kinase isoenzyme,N-terminal pro-brain natriuretic peptide,hypersensitive C-reactive protein,blood sugar,blood uric acid,fibrinogen,triglyceride and mononuclear cell count,and lower levels of high density lipoprotein cholesterol and lymphocyte count(all P<0.05).Meanwhile,there was a significant difference in MHR between the observation group and the control group[(0.75±0.22)vs.(0.48±0.19),t=9.831,P=0.001].Multivariate Logistic regression analysis showed that MHR was an independent risk factor for imperfect ST-segment resolution(OR=1.950,95%CI:1.646-5.430,P=0.003)and ROC curve showed the threshold value of MHR at 0.67,the area under the curve at 0.867,the sensitivity at 79.72%,and the specificity at 79.61%.Conclusions MHR may be an independent risk factor and a good predictive index for imperfect ST-segment resolution in elderly patients with STEMI after PCI.