Objectives:

To describe the characteristics of patients and to determine the risk factors associated with second Emergency Department visits at 30 and 180 days in sick people admitted to the Emergency Department for cardioembolic stroke with a previous diagnosis of atrial fibrillation.

Methods:

Retrospective, observational study of adult patients admitted to the Emergency Department at our institution for cardioembolic stroke from January 1, 2019 to December 31, 2019. All study participants had a previous diagnosis of Atrial Fibrillation, CHADs2-VASc ≥2, and no contraindications for anticoagulants. The patients were retrospectively identified through a database search. A univariate analysis was performed to assess variables potentially associated with readmission (any cause) at 30 and 180 days. All variables with a p<0.2 were included in a multivariate analysis.

Results:

During the study period, 547 patients presented to the ED with ischemic stroke and 113 (20.6%) met the study inclusion criteria. Of these, 53 patients (46.9%) did not receive anticoagulant therapy before the stroke and 28 (24.7%) were taking doses lower than recommended in the technical data sheet. The pharmacological stroke prevention strategy was modified in 44 patients (38.9%) at discharge. On the multivariate analysis, diabetes was the only risk factor significantly associated with early readmission to the ED.

Conclusions:

Most patients (71.6%) with a previous diagnosis of AF who presented to the emergency department for cardioembolic stroke had not received optimal anticoagulant preventive treatment before the event. Diabetes was the only risk factor associated with early readmission to the Emergency Department.

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