64排螺旋CT对心房颤动患者导管消融治疗后肺静脉狭窄的评价  

64 multislice computed tomography evaluate the vein stenosis in patients with atrial fibrillation after radiofrequency ablation

作　　者：林明宽 刘浩[2] 梁柳丹 张创良 唐梅艳[2] 周婷[2] 赵秋燕[2] 韦海珠 周祥群 

机构地区：[1]海南农垦三亚医院心内科,海南三亚572000 [2]广西医科大学第一附属医院心内科 [3]海南省干部疗养院心内科

出　　处：《中国介入心脏病学杂志》2014年第6期357-360,共4页Chinese Journal of Interventional Cardiology

基　　金：广西自然科学基金(桂科青0542056);广西医疗卫生重点科研课题(桂卫重200923)

摘　　要：目的利用CT三维成像评价心房颤动(房颤)患者行环肺静脉电隔离(CPVI)术后肺静脉狭窄的发生情况。方法对28例行CPVI术(6.5±3.9)个月的房颤患者进行随访,研究导管消融术后肺静脉的形态结构学特点与术前做对比分析;应用64排螺旋CT测量CPVI术前后肺静脉口的径线、截面积、左心房容积。结果 CPVI术后肺静脉的最大径、最小径轻度狭窄率分别为61.6%、56.3%。中度狭窄率分别为3.6%、5.4%;所有患者随访时未出现静息或活动后肺静脉狭窄的常见症状。结论 CPVI术后可引起部分患者无症状性轻度及中度肺静脉狭窄。Objective Using CT three-dimensional image technique to observe the pulmonary vein stenosis of circumferential pulmonary vein ablation （CPVA） for atrial ifbrillation （AF） on the structure of pulmonary vein before and after radiofrequency ablation. Methods 28 patients with AF who underwent CPVA were followed-up for a mean （6.5±3.9） months.The results of Pulmonary vein morphology study was compared with analysis of preablation, after following up radiofrequency catheter alation （6.5±3.9） months. Pulmonary vein diameters, cross-sectional area and left atrial volume were measured before and after CPVA using 64-slice multidector computed tomography （CT）. Results Mild stenosis of pulmonary vein maximum diameter and pulmonary minimum diameter were 61.6%and 56.3%after CPVA. Moderate stenosis of pulmonary vein maximum diameter and pulmonary minimum diameter were 3.6%and 5.4%. All patients does not present symptoms of pulmonary vein stenosis at rest on during excercise during follow up. Conclusions Mild and moderate asymptomatic pulmonary vein stenosis may present in some patients after CPVA.

关 键 词：CT 房颤 肺静脉狭窄 环肺静脉电隔离 

分 类 号：R541.7[医药卫生—心血管疾病]