Abstract TP418: Delayed Detection Of Atrial Fibrillation After Ischemic Stroke Or Transient Ischemic Attack
Background and purpose: detection of atrial fibrillation (AF) after ischemic stroke is crucial, because anticoagulation is mandatory in order to decrease recurrence risk. However, there is no agreement regarding the optimal method to detect paroxysmal AF after the event. The aim of this study was to evaluate predictors for delayed detection of AF after ischemic stroke (IS) and transient ischemic attack (TIA).
Methods: PROTEGE-ACV is a multidisciplinary stroke quality improvement program coordinated by internists and neurologists within a Buenos Aires healthcare system aimed to optimize secondary stroke preventive care after IS or TIA. Demographic data, vascular risk factors profile control and management were evaluated at the inclusion visit, and IS was categorized according to TOAST classification.
Results: From 01/2007 to 04 /2012, 872 ischemic stroke patients were included; mean age was 75 ± 10 years-old and 55% were female. Twenty two percent were cardioembolic and 7% undetermined with more than one mechanism with AF as one of them; 14% of patients had history of AF or diagnosis at hospitalization. Incident AF was diagnosed in 101 (21%) of 473 patients with two or more years of follow-up.. Diagnosis of AF was associated with age older than 80 years (OR 1.96 95% CI 1.25-3), history of hypertension (OR 2.4 95% CI 1.25-4.8), chronic renal failure (OR 2.65 95% CI 1.54-4.55) and stroke recurrence (OR 2.96 95% CI 1.66-5.26).
Conclusion: delayed diagnosis of AF was common in this cohort of patients with IS or TIA. Identification of risk factors is important in order to perform a close follow-up of these patients and to determine the best method for this purpose, in order to reduce recurrence risk.
- © 2012 by American Heart Association, Inc.