空腹血糖水平与冠状动脉病变SYNTAX积分的关系

摘要

Objective To analyze the relationship between fasting plasma glucose (FPG) level and complexity of coronary artery lesions in patients with coronary stenosis by angiography. Methods The data of clinic and coronary angiogram (CAG) were retrospectively collected in 929 patients with established coronary stenosis by coronary angiography at Peking University Third Hospital from January 2009 to January 2011. The patients were grouped according to SYNTAX score, and the relationship between FPG level and SYNTAX score were analyzed using bivariate, Multivariate stepwise regression and logistic regression analysis. Results ①929 patients were devided into three groups:47 cases into low risk group (score<22), 189 into moderate risk group (score≥22 and<33) and 639 into high risk group (score≥33). Intergroup analysis showed that age (P=0.000), FPG level [5.20 (4.70,6.30) mmol/L, 5.70 (4.90,7.15) mmol/L, 5.80 (5.30,7.60) mmol/L, P=0.000], proportions of FPG abnormality [283 (40.8%), 100(52.9%), 28(59.6%), P=0.001] and patients with diabetes history (P=0.003) were increased along with SYNTAX score elevated.②Correlation analysis showed correlativity (r=0.167, P=0.000) between SYNTAX score and FPG. In non-diabetes history subgroup, correlation between SYNTAX score and FPG remained signiifcant (r=0.149, P=0.000). However, in diabetes history subgroup, the correlation was not significant. ③ Multivariate stepwise regression analysis showed an independent correlation between FPG and SYNTAX score (β=0.452, P=0.002). In non-diabetes history subgroup, the correlation remained significant (β=1.039, P=0.000).④ When moderate-high risk group serve as dependent variable, and age, gender, CAD risk factors and FPG serve as independent variables, logistic regression analysis screened out two variables:age (whole group:OR 1.033, 95%CI 1.017 ~ 1.049, P=0.000;non-diabetes history subgroup:OR 1.039, 95%CI 1.020 ~ 1.059, P=0.000) and FPG (whole group: OR 1.114, 95% CI 1.038 ~ 1.195, P=0.003; non-diabetes history subgroup:OR 1.299, 95%CI 1.088 ~ 1.387, P=0.001). Conclusions FPG is likely to relfect complexity of coronary artery lesions and predict SYNTAX score in patients with coronary stenosis, especially in patients without diabetes history.%目的：分析存在冠状动脉病变的患者空腹血糖水平与冠状动脉病变复杂程度的关系。方法回顾性收集2009年1月至2011年1月于北京大学第三医院疑诊为冠心病并行冠状动脉造影（CAG）证实存在冠状动脉病变的929例患者的临床和CAG资料。根据SYNTAX积分对患者进行分组，应用双变量相关分析，多元逐步回归分析和Logistic回归分析空腹血糖水平与冠状动脉SYNTAX积分之间的相关性。结果①929例患者中，以SYNTAX积分分为：低危组（积分＜22分）47例，中危组（22分≤积分＜33分）189例，高危组（积分≥33分）693例。组间比较显示，患者年龄、空腹血糖水平、空腹血糖异常和既往糖尿病患者比例，差异具有统计学意义。②相关分析提示， SYNTAX积分与空腹血糖呈相关性（r=0.167，P=0.000）。亚组分析则显示，仅在无糖尿病史患者中，SYNTAX积分与空腹血糖之间存在相关性（r=0.149，P=0.000）；而在既往糖尿病史患者中，两者不具有相关性。③多元逐步回归分析显示，空腹血糖水平与SYNTAX积分独立相关（β=0.452， P=0.002）。亚组分析显示，仅在既往无糖尿病史亚组中，空腹血糖水平与SYNTAX积分独立相关（β=1.039，P=0.000）。④将SYNTAX中危组和高危组合并为中高危组，以SYNTAX积分作为因变量，以性别、年龄、高血压、糖尿病、高脂血症、吸烟、空腹血糖为自变量，进行Logistic回归分析，在整组和无糖尿病史亚组中均筛选出两个变量即：年龄（整组OR 1.033，95%CI 1.017～1.049， P=0.000；无糖尿病史组OR 1.039，95%CI 1.020～1.059，P=0.000）和空腹血糖水平（整组OR 1.114，95%CI 1.038～1.195，P=0.003；无糖尿病史组OR 1.299，95%CI 1.088～1.387，P=0.001）。结论存在冠状动脉病变的患者空腹血糖水平可能反映冠状动脉病变的复杂程度，具有预测中高SYNTAX积分的作用，尤其适用于无糖尿病史患者。