薛明 周文博
【摘要】目的 觀察動脈血乳酸(Lac)水平的變化與ST段抬高型心肌梗死(STEMI)患者經皮冠狀動脈介入治療(PCI)臨床相關性分析。方法 回顧性收集我院2014年3月至2018年2月CCU及ICU STEMI149例,予以急診PCI后入CCU及ICU,收集6小時內Lac,根據血Lac水平分為兩組:小于2.0 mmol/L,≥2.0 mmol/L;對兩組年齡、性別、心率(HR)、BMI、休克、危險因素(高血壓病、糖尿病、高膽固醇血癥、吸煙)、血紅蛋白(HB)、肌酐(Cr)、肌鈣蛋白T峰值(PcTnT)、30天死亡率等數據進行分析。對LAC水平細分7個組(<1.2 mmol/L、1.2~1.5 mmol/L、1.6~1.9 mmol/L、2.0~2.9 mmol/L、3.0~3.9 mmol/L、
4.0~4.9 mmol/L、≥5.0 mmol/L)觀察隨著Lac水平的升高其30日死亡率的變化。結果 兩組不同乳酸水平的數據分析結果示,性別、年齡、HB、BMI及高膽固醇血癥等比較無統計學差異(P>0.05)。休克發生率增加(P<0.05)、HR增快(P=0.007)、肌酐增高(P=0.003)、高血壓病(P=0.024)、糖尿病及有吸煙史者(P<0.05)比率增高;30天死亡率也是明顯上升的(3.8%vs20.5% P<0.05)。對LAC水平細分7個組同樣可以明顯的觀察到隨著Lac的增加,30天死亡率明顯上升,當Lac≥5.0 mmol/L死亡率達到60%。結論 STEMI患者血流動力學障礙、HR增快、肌酐增高、高血壓病及糖尿病等與Lac水平增高有相關性;Lac水平(特別是≥2.0 mmol/L)的增高為STEMI行急診PCI術患者對30日死亡率有獨立的預測價值。
【關鍵詞】ST段抬高型急性心肌梗死;血乳酸;經皮冠狀動脈介入治療
【中圖分類號】R542.22 【文獻標識碼】B 【文章編號】ISSN.2095-6681.2018.07..03
【Abstract】Objective We sought to evaluate the clinical correlates of arterial lactate levels in patients with ST-segment elevation myocardial infarction.Methods We studied clinical records of 149 patients treated with primary percutaneous coronary intervention(PCI), divided into two groups with lactate levels <2.0 (n=105) and≥2.0 mmol/l (n=44),treated in CCU and ICU,from March 2014 to February 2018, with diagnosis ST-elevation AMI.We measured arterial lactate levels with a rapid point-of-care technique.We compared both baseline characteristics and outcome measures of the two lactate groups.Results Factors independently associated with higher lactate levels were hypotension, heart rate,PcTnI,creatinine,hypertension,diabetes and smoking. Mortality at 30 days in the two groups was 3.8% and 20.5%.Conclusion In STEMI patients, impaired hemodynamics,,heart rate, PcTnI, creatinine,hypertension,diabetes and smoking were related to increased arterial lactate levels.Higher lactate levels were independently related
with 30-day mortality.In particular,acute mortality was related to admission lactates≥2.0 mmol/L.
【Key words】ST-segment elevation myocardial infarction;lactate;Percutaneous coronary intervention
隨著我國生活水平的提高,老齡化日益加劇,心腦血管疾病已成我國死亡的第一大原因,同樣急性心肌梗死發病率逐年升高,死亡率也顯著增加;Lac作為臨床價值廣泛應用于重癥醫學中[1]。各種類型休克都把Lac作為預測患者預后的一個指標,近年來也有研究心源性休克患者乳酸水平也同樣升高[2,3]。……