title: Prognostic significance of prevalent and incident atrial fibrillation among patients hospitalized with acute coronary syndrome: findings from the Gulf RACE-2 Registry.
abstract: There is a paucity of data on atrial fibrillation (AF) complicating acute coronary syndrome (ACS) in Arabian Gulf countries. Thus, we assessed the incidence of AF in patients with ACS in these countries and examined the associated in-hospital, 30-day, and 1-year adverse outcomes. The population comprised 7930 patients enrolled in the second Gulf Registry of Acute Coronary Events (Gulf RACE-2). Of 7930 patients with ACS, 217 (2.7%) had AF. Compared with patients without AF, patients with AF were less likely to be male (65.9 vs 79.1%) and were older (mean age 64.6 vs 56.6 years). Compared with patients without AF, in-hospital, 30-day, and 1-year mortality were significantly higher in patients with any AF (odds ratio [OR]: 2.7, 2.2, 1.9, respectively; P < .001) and in patients with new-onset AF (OR: 5.2, 3.9, 3.1, respectively; P < .001. In conclusion, AF in patients with ACS was associated with significantly higher short- and long-term mortality.
authors.affiliation: Department of Cardiac Sciences, College of Medicine, King Saud University, Riyadh, Saudi Arabia. ahersi@ksu.edu.sa
authors.forename: Ahmad
authors.initials: A
authors.lastname: Hersi
authors.forename: Khalid F
authors.initials: KF
authors.lastname: Alhabib
authors.forename: Alawi A
authors.initials: AA
authors.lastname: Alsheikh-Ali
authors.forename: Kadhim
authors.initials: K
authors.lastname: Sulaiman
authors.forename: Hussam F
authors.initials: HF
authors.lastname: Alfaleh
authors.forename: Shukri
authors.initials: S
authors.lastname: Alsaif
authors.forename: Wael
authors.initials: W
authors.lastname: Al-Mahmeed
authors.forename: Nidal
authors.initials: N
authors.lastname: Asaad
authors.forename: Amin
authors.initials: A
authors.lastname: Haitham
authors.forename: Ahmed
authors.initials: A
authors.lastname: Al-Motarreb
authors.forename: Jassim
authors.initials: J
authors.lastname: Suwaidi
authors.forename: Abdullah
authors.initials: A
authors.lastname: Shehab
mesh_terms: D054058:Acute Coronary Syndrome / Q000150:complications* / Q000453:epidemiology / Q000628:therapy; D001281:Atrial Fibrillation / Q000453:epidemiology* / Q000209:etiology / Q000628:therapy; D001445:Bahrain / Q000453:epidemiology; D005260:Female; D017052:Hospital Mortality / Q000639:trends; D006760:Hospitalization; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009850:Oman / Q000453:epidemiology; D015995:Prevalence; D011379:Prognosis; D011780:Qatar / Q000453:epidemiology; D012042:Registries; D012189:Retrospective Studies; D012529:Saudi Arabia / Q000453:epidemiology; D015996:Survival Rate / Q000639:trends; D014479:United Arab Emirates / Q000453:epidemiology; D015006:Yemen / Q000453:epidemiology