Clinical characteristics of patients with atrial fibrillation at a tertiary care hospital in the central region of Saudi Arabia.

Objective: To report on the clinical presentation, etiology, and laboratory features of acute and chronic atrial fibrillation (AF) in a tertiary hospital in Riyadh, Saudi Arabia.

Materials And Methods: We retrospectively studied records of 720 patients with AF seen in outpatients and inpatients departments at King Abdulaziz Medical City, Riyadh, during the period of 1 January 2002 to 31 August 2008.

Results: Documented acute and chronic AF was present in 157 (21.