摘要
目的:探讨心房颤动(AF)引起双心房扩大的临床特征。 方法:对20例AF伴双心房扩大病例的临床资料及随访结果,进行分析。 结果:本组年龄52～93岁(平均75.5岁)。20例AF患者安静时HR均<85次/分钟,双心房扩大与AF相关,系AF致心房解剖重构。20例中,左心房内径4.2～5.7cm(平均4.9cm),右心房内径4.6～6.8cm(平均5.5cm)。3例AF经药物复律后在随访中双心房恢复正常或明显缩小接近正常。 结论:少数持续性AF可引起双心房扩大(解剖重构),成为心房心肌病,认识该病有重要临床意义。
Objective:To investegate the clinical characteristics of the patients with biatrial enlargment caused by atrial fibrillation (AF). Methods:The clinical data and follow-up results of 20 patients with biatrial enlargment caused by AF were analysed. The literatures about tachycardio-induced atrial remodeling and animal experimental study of TACMP were reviewed in this study. Results :The range of age was 52-93 (average 75. 5)years and HR<85/min(at the time of quiet). The results of analytic study indicated that biat-rical enlargement were related to AF. It was characteristics of AF-induced atrial anatomical remodeling. A-mong 20 patients,the diamiters of left atrium were 4. 2-5. 7cm(average 4. 9cm) ,right atrium were 4. 6-6. 8 cm(average 5. 5cm). Biatrial enlargment in 3 patients were returned to normal or decreased remarkably after the drug conversion of AF. Conclusions: Biatrial enlargement (anatomical remodeling) were caused by sustained AF in a few patients, that lead to TACMP. Recognizing TACMP will have significant clinical implications.
