BMC Cardiovasc Disord. 2013 Jun 10;13:41. doi: 10.1186/1471-2261-13-41.
the objective of this study is to investigate the detection rate of undiagnosed atrial fibrillation (AF) with short intermittent ECG recordings during four weeks among out-of-hospital patients, having at least one additional risk factor (CHADS2) for stroke.
Cross-sectional study.
Eight family practice centres and two hospital-based out-patient clinics in Sweden.
989 out-of-hospital patients, without known AF, having one or more risk factors associated with stroke (CHADS2).
All individuals were asked to perform 10-second handheld ECG recordings during 28 days, twice daily and when having palpitations.
Episodes of AF on handheld ECG recordings were defined as irregular supraventricular extrasystoles in series with a duration of 10 seconds.
928 patients completed registration. AF was found in 35 of 928 patients; 3.8% (95% confidence interval [CI] 2.7-5.2). These 35 patients had a mean age of 70.7 years (SD ± 7.7; range 53-85) and a median CHADS2 of 2 (range 1-4).
Intermittent handheld ECG recording over a four week period had a detection rate of 3.8% newly diagnosed AF, in a population of 928 out-of-hospital patients having at least one additional risk factor for stroke. Intermittent handheld ECG registration is a feasible method to detect AF in patients with an increased risk of stroke in whom oral anticoagulation (OAC) treatment is indicated.
本研究旨在调查在 28 天内，通过四周的间歇性短程心电图记录，检测出患有至少一种中风额外危险因素（CHADS2）的院外患者中未确诊心房颤动（AF）的检出率。
横断面研究。
瑞典的 8 个家庭医疗中心和 2 个医院门诊。
989 名院外患者，无已知的 AF，具有一个或多个与中风相关的危险因素（CHADS2）。
所有患者均被要求在 28 天内每天进行两次 10 秒手持心电图记录，出现心悸时随时记录。
手持心电图记录中的 AF 发作定义为不规则的室上性早搏连续发生，持续时间为 10 秒。
928 名患者完成了登记。在 928 名患者中发现 35 例 AF，检出率为 3.8%（95%置信区间 [CI] 2.7-5.2）。这些 35 名患者的平均年龄为 70.7 岁（SD ± 7.7；范围 53-85），CHADS2 中位数为 2（范围 1-4）。
在 928 名至少有一个中风额外危险因素的院外患者中，通过四周间歇性手持心电图记录，新诊断 AF 的检出率为 3.8%。间歇性手持心电图记录是一种可行的方法，可用于检测具有中风风险增加且需要口服抗凝治疗（OAC）的患者中的 AF。
