|Definition and monitoring of POAF used in the included trials of the meta-analysis|
|First author/Year of publication||Definition of POAF||Monitoring of POAF|
|Jideus/2001 ||The absence of consistent P waves before each QRS complex and with an irregular ventricular rate, lasting 30 seconds or longer||Twenty-four hour Holter ECG performed on the first 4 consecutive days, or until clinically documented sustained atrial fibrillation|
|Nygard/2004 ||New-onset atrial fibrillation (irrespective of treatment), an irregular narrow complex rhythm with absence of P waves||Twenty-four hour Holter ECG performed on the first 5 consecutive days|
|Bakhtiary/2007 ||An episode of atrial fibrillation or flutter lasting for more than 30 seconds||Continuous ECG performed for 48 hours, then, twice daily 12-lead ECG performed until hospital discharge|
|Tenenbein/2008 ||A need for pharmacologic treatment||Holter ECG performed on the first three postoperative days|
|Caputo/2009 ||New onset of atrial fibrillation not present preoperatively||Continuous ECG performed in the intensive care unit, high-dependency unit, and ward, and daily 12-lead ECG analysis|
POAF, postoperative atrial fibrillation; ECG, electrocardiogram.
Gu et al.
Gu et al. BMC Cardiovascular Disorders 2012 12:67 doi:10.1186/1471-2261-12-67