The Natural History of Lone Atrial Fibrillation

Stephen L. Kopecky, Bernard J. Gersh, Michael D. McGoon, Jack P. Whisnant, David Holmes, Duane M. Ilstrup, Robert L. Frye

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Abstract

From 1950 to 1980, 3623 patients from Olmsted County, Minnesota, were found to have atrial fibrillation. Ninety-seven of these patients (2.7 percent), who were 60 years old or younger at diagnosis, had lone atrial fibrillation (atrial fibrillation in the absence of overt cardiovascular disease or precipitating illness), and their data were reviewed to determine the incidence of thromboemboli. Twenty of these patients (21 percent) had an isolated episode of atrial fibrillation, 56 (58 percent) had recurrent atrial fibrillation, and 21 (22 percent) had chronic atrial fibrillation. The total follow-up period was 1440 person-years, with a mean of 14.8 years per patient. The mean age at diagnosis was 44 years. Nineteen cardiovascular events occurred in 17 patients; 4 patients had strokes thought to be due to emboli from atrial fibrillation, and 4 had myocardial infarctions without overt evidence of previous coronary artery disease. The probability of survival at 15 years was 94 percent among the patients with lone atrial fibrillation. At 15 years, 1.3 percent of the patients had had a stroke on a cumulative actuarial basis. On an actuarial basis, there was no difference in survival or in survival free of stroke among the patients with the three types of lone atrial fibrillation (i.e., isolated, recurrent, and chronic). We conclude that lone atrial fibrillation in patients under the age of 60 at diagnosis is associated with a very low risk of stroke. This suggests that routine anticoagulation may not be warranted. (N Engl J Med 1987; 317:669–74.), ATRIAL fibrillation may occur in the presence of a variety of cardiovascular diseases but also in the absence of any other clinical evidence to suggest a primary cardiac disorder; in the latter case it is known as lone atrial fibrillation.1 The influence of lone atrial fibrillation on thromboembolic events, survival, and subsequent events of cardiac disease is not well established. Although the frequency of atrial fibrillation is approximately 2 percent in an unselected adult population,2 it has been observed in approximately 25 percent of patients with strokes.3 Thus, from a neurologist's perspective, atrial fibrillation is commonly associated with stroke, whereas….

Original languageEnglish (US)
Pages (from-to)669-674
Number of pages6
JournalNew England Journal of Medicine
Volume317
Issue number11
DOIs
StatePublished - Sep 10 1987

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Natural History
Atrial Fibrillation
Stroke
Survival
Cardiovascular Diseases
Embolism
Coronary Artery Disease
Heart Diseases
Myocardial Infarction

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Kopecky, S. L., Gersh, B. J., McGoon, M. D., Whisnant, J. P., Holmes, D., Ilstrup, D. M., & Frye, R. L. (1987). The Natural History of Lone Atrial Fibrillation. New England Journal of Medicine, 317(11), 669-674. https://doi.org/10.1056/NEJM198709103171104

The Natural History of Lone Atrial Fibrillation. / Kopecky, Stephen L.; Gersh, Bernard J.; McGoon, Michael D.; Whisnant, Jack P.; Holmes, David; Ilstrup, Duane M.; Frye, Robert L.

In: New England Journal of Medicine, Vol. 317, No. 11, 10.09.1987, p. 669-674.

Research output: Contribution to journalArticle

Kopecky, SL, Gersh, BJ, McGoon, MD, Whisnant, JP, Holmes, D, Ilstrup, DM & Frye, RL 1987, 'The Natural History of Lone Atrial Fibrillation', New England Journal of Medicine, vol. 317, no. 11, pp. 669-674. https://doi.org/10.1056/NEJM198709103171104
Kopecky SL, Gersh BJ, McGoon MD, Whisnant JP, Holmes D, Ilstrup DM et al. The Natural History of Lone Atrial Fibrillation. New England Journal of Medicine. 1987 Sep 10;317(11):669-674. https://doi.org/10.1056/NEJM198709103171104
Kopecky, Stephen L. ; Gersh, Bernard J. ; McGoon, Michael D. ; Whisnant, Jack P. ; Holmes, David ; Ilstrup, Duane M. ; Frye, Robert L. / The Natural History of Lone Atrial Fibrillation. In: New England Journal of Medicine. 1987 ; Vol. 317, No. 11. pp. 669-674.
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