Incidence, clinical features and outcomes of atrial fibrillation and stroke in Qatar

Yahia Z. Imam, Saadat Kamran, Naveed Akhtar, Dirk Deleu, Rajvir Singh, Rayaz Malik, M. S. Abdelmoneim, Pablo Bermejo, Paula Bourke, Deborah Morgan, Mark Santos, Sujatha Joseph, Ashfaq Shuaib

Research output: Contribution to journalArticle

Abstract

Background: Atrial fibrillation is an important risk factor for stroke but there are limited data on atrial fibrillation-related stroke from the Middle East. Methods: We interrogated the Qatar Stroke Database to establish the occurrence, clinical features, and outcomes of atrial fibrillation-related stroke at Hamad General Hospital, the sole provider of acute stroke care in Qatar. Results: A total of 4079 patients (81.4% male, mean age 55.4 ± 13.3 years) were enrolled in the stroke database between January 2014 and 21 October 2017. Atrial fibrillation was present in 260 (6.4%) patients, of whom 106 (2.6%) had newly diagnosed atrial fibrillation. The National Institute of Health Stroke Scale (NIHSS) was significantly higher (7.9 + 7.0 (median 6; IQR 11) vs. 5.9 + 6.4 (median 4; IQR 6), P < 0.001) in atrial fibrillation patients. The modified Rankin Score (mRS) (P < 0.001) and mortality at 90-day follow-up (P = 0.002) were significantly higher in atrial fibrillation compared to non-atrial fibrillation stroke patients. Conclusion: We demonstrate a low rate of atrial fibrillation and stroke in Qatar, perhaps reflecting the relatively young age of these patients. Atrial fibrillation-related strokes had higher admission NIHSS, greater disability, and higher mortality at 90 days when compared to non-atrial fibrillation strokes.

Original languageEnglish
JournalInternational Journal of Stroke
DOIs
Publication statusPublished - 1 Jan 2019

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Keywords

  • atrial fibrillation
  • incidence
  • outcome
  • Qatar
  • Stroke

ASJC Scopus subject areas

  • Neurology

Cite this

Imam, Y. Z., Kamran, S., Akhtar, N., Deleu, D., Singh, R., Malik, R., Abdelmoneim, M. S., Bermejo, P., Bourke, P., Morgan, D., Santos, M., Joseph, S., & Shuaib, A. (2019). Incidence, clinical features and outcomes of atrial fibrillation and stroke in Qatar. International Journal of Stroke. https://doi.org/10.1177/1747493019830577