心房纤颤(AF)为最常见之心律失常,常由二尖瓣狭窄、缺血性心脏病或甲亢引起,亦可能是预激综合征的暂时表现。少数无原因可寻。作者报导一例在鹦鹉热病原体(Chlamydia B)感染过程中出现AF。可能由于并发心肌炎所致。病例报告:患者男性,43岁,于1980年11月发生类似流感症状,咳痰、喘息而无胸痛,其爱人及 Atrial fibrillation (AF) is the most common arrhythmia, often caused by mitral stenosis, ischemic heart disease or hyperthyroidism, may also be a temporary manifestation of Wolff-Parkinson’s syndrome. There are few reasons to look for. The authors report an example of AF in the course of Chlamydia B infection. May be due to complicated myocarditis. Case Report: Male patient, age 43, developed flu-like symptoms, expectoration, wheezing without chest pain in November 1980,