冠状动脉左主干长度及左前降支-左回旋支分叉角度与粥样斑块形成的关系  

Relationship of length of left main coronary artery and left anterior descending artery-left circumflex artery bifurcation angle with atheromatous plaque formation

作　　者：孟令秀 董福生 孙文扬 Meng Lingxiu;Dong Fusheng;Sun Wenyang(Department of Cardiology,Second Hospital of Qinhuangdao,Qinhuangdao 066600,Hebei Province,China;Department of Anesthesiology,Second Hospital of Qinhuangdao,Qinhuangdao 066600,Hebei Province,China)

机构地区：[1]秦皇岛市第二医院心血管内科,河北秦皇岛066600 [2]秦皇岛市第二医院麻醉科,河北秦皇岛066600

出　　处：《中华老年多器官疾病杂志》2023年第10期761-764,共4页Chinese Journal of Multiple Organ Diseases in the Elderly

摘　　要：目的 探讨冠状动脉左主干(LM)长度及左前降支-回旋支(LAD-LCX)分叉角度与粥样斑块形成的关系。方法 回顾性分析2020年1月至2022年1月秦皇岛市第二医院收治的行CT血管造影(CTA)检查且结果明确的372例患者的临床资料,依据CTA检查结果将患者分为左冠状动脉病变组(n=244)和正常组(n=128),比较各组人群LM长度、LM面积、左冠发出角度LM-LAD夹角、LM-LCX夹角和LAD-LCX夹角之间的差异,并分析LM、LAD-LCX分叉角度与粥样斑块形成的关系。采用SPSS 22.0软件进行数据分析。根据数据类型,组间比较分别采用t检验及χ2检验。结果 正常组LAD-LCX夹角(77.70°±5.78°)小于近段组(79.23°±5.11°)和远段组(81.24°±6.96°),且近段组LAD-LCX夹角小于远段组,差异均有统计学意义(P<0.05)。正常组LAD-LCX夹角(77.70°±5.78°)小于轻度狭窄组(79.10°±5.05°)和中重度狭窄组(81.07°±6.32°),且轻度狭窄组LAD-LCX夹角小于中重度狭窄组,差异均有统计学意义(均P<0.05)。结论 左冠状动脉LAD-LCX分叉夹角越大,动脉斑块形成的风险越高。Objective To investigate the relationship of the length of the left main coronary artery(LM)and left anterior descending artery-left circumflex artery(LAD-LCX)bifurcation angle with the atheromatous plaque formation.Methods A retrospective analysis was made of the clinical data of 372 patients admitted to the Second Hospital of Qinhuangdao from January 2020 to January 2022,who underwent CT angiography(CTA)and had clear results.According to CTA findings,the patients were divided into group with lesion at the left coronary artery(lesion group)(n=244)and normal group(n=128).The groups were compared in LMCA length,LMCA area,LM-LAD angle of the left coronary artery origin,LM-LCX angle and LAD-LCX angle.The relationship between LMCA and LAD-LCX bifurcation angle and atheromatous plaque formation was analyzed.SPSS statistics 22.0 was used for statistical analysis.Data comparison between two groups was perfomed using t test orχ2 test depending on data type.Results The LAD-LCX angle in the normal group(77.70°±5.78°)was lower than the proximal group(79.23°±5.11°)and the distal group(81.24°±6.96°),and the LAD-LCX angle in the proximal group was lower in the distal group,the differences being statistically significant(P<0.05 for all).Additionally,the LAD-LCX angle in the normal group(77.70°±5.78°)was lower than the mild stenosis group(79.10°±5.05°)and the moderate to severe stenosis group(81.07°±6.32°),and the mild stenosis group had a lower LAD-LCX angle than the moderate to severe stenosis group,the differences being statistically significant(P<0.05 for all).Conclusion The greater the LAD-LCX bifurcation angle,the higher the risk of arterial plaque formation.

关 键 词：冠状动脉 左主干长度 左前降支-左回旋支分叉角度 粥样斑块 

分 类 号：R541.4[医药卫生—心血管疾病]