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- Friberg, L., et al.
(författare)
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The prognosis of patients with atrial fibrillation is improved when sinus rhythm is restored: report from the Stockholm Cohort of Atrial Fibrillation (SCAF)
- 2009
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Ingår i: Heart. - 1468-201X. ; 95:12, s. 1000-5
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Clinical trials have indicated that an active rhythm control strategy aiming at restoration of sinus rhythm in patients with atrial fibrillation (AF) is no better than a rate-control strategy in terms of mortality and morbidity. To what extent restoration and maintenance of sinus rhythm per se affect long-term prognosis in AF patients is less clear. AIM: To investigate if there are differences in mortality and morbidity between direct current (DC)-cardioverted AF patients who remain in sinus rhythm after cardioversion and those who relapse early. Method: 361 cardioverted patients from the Stockholm Cohort Study on Atrial Fibrillation were studied by means of medical records and national registers. Patients were followed for a mean of 4.2 years from DC cardioversion regarding all-cause mortality and for a mean of 3.2 years for a composite endpoint of death, ischaemic stroke, myocardial infarction or hospitalisation for heart failure. RESULTS: All-cause mortality tended to be lower in patients who had been successfully cardioverted and had had no known relapse of AF within the first 3 months after cardioversion (hazard ratio (HR) 0.57, 95% CI 0.30 to 1.06, p = 0.076). They also had a significantly lower incidence of the composite endpoint than those who relapsed early (HR 0.51, 95% CI 0.32 to 0.82, p = 0.0058). CONCLUSION: Restoration and 3 months maintenance of sinus rhythm was associated with improved long-term prognosis. The results imply that an active DC cardioversion approach is justified.
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