TEE对非瓣膜性房颤复律后左心耳功能“顿抑”的观察  

TEE Observation of LAA Stunning after Conversion of Non Valvular Atrial Fibrillation

作　　者：肖竹影[1] 吴长君[2] 薛莉[2] 

机构地区：[1]哈尔滨医科大学第一临床医院超声科,黑龙江哈尔滨150001 [2]哈尔滨医科大学第三临床医院影像科

出　　处：《中国医学影像技术》2000年第7期560-561,共2页Chinese Journal of Medical Imaging Technology

摘　　要：目的　对非瓣膜性房颤复律后左心耳功能“顿抑”超声表现的观察。方法　应用多平面经食管超声心动图 (TEE)对 17例非瓣膜性房颤病人复律后左心耳血流频谱及复律前与复律后 2 4小时、1周左心耳最大排空速度(LAA PEV) ,以及复律前、后左房自发显影 (SEC)的检测。结果　①房颤病人转复窦性心律后左心耳血流频谱呈现窦性心律模式。②电转复前LAA PEV为 30 8± 10 3cm/s ,转复后 2 4小时为 2 3 3± 10 2cm/s(P <0 0 0 1)。③转复后 1周LAA PEV为 6 6 4± 12 5cm/s ,与我们曾报道的正常组LAA PEV70 4± 10 9cm/s基本相近。④转复前左房显示SEC7例 ,其中有 5例转复后密度增加。转复前无SEC的 10例 ,转复后 3例出现SEC。结论　本文初步阐述了房颤复律后左心耳功能“顿抑”的超声表现。并据本组观察复律Objective\ Transesophageal echocardiographic (TEE) observation of left atrial appendage(LAA) stunning after conversion of non valvular atrial fibrillation. Methods In 17 cases of non valvular atrial fibrillation,multiplanar TEE was used to measure post conversion blood flow frequency spectrum;LAA peak evacuation velocity(LAA PEV)before conversion,24 h and 1 week after conversion,and peri conversion left atrial spontaneous echo contrast (SEC). Results ①LAA blood flow frequency spectrum became of sinus rhythm model after conversion.②LAA PEV was 30.8±10.3 cm/s before conversion,23.3±10.2 cm/s 24h after conversion( P <0.001).③LAA PEV was 66.4±12.5 cm/s 1 week after conversion,with the latter being basically approximate to 70.4±10.9 cm/s reported previously by us in normal subjects.④SEC was present in left atrium in 7 cases before conversion,increased in density in 5 of 7 after conversion;SEC was absent in 10 cases before conversion,appeared in 3 of 10 after conversion. Conclusion LAA was found to have stunning after conversion of atrial fibrillation,and to restore normal function 1 week after conversion in this series of cased. [

关 键 词：TEE 心房颤动 电转复 左心耳功能 

分 类 号：R541.75[医药卫生—心血管疾病]