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Atrial fibrillation after noncardiac surgery tied to higher stroke risk

Journal
JAMA
Reuters Health - 01/09/2020 - Patients who develop atrial fibrillation following noncardiac surgery have a significantly increased risk of suffering transient ischemic attack (TIA) or stroke over the next five years, a retrospective cohort study shows. AF that develops following noncardiac surgery is thought to be triggered by postoperative stress and systemic inflammation, coupled with predisposing comorbid conditions. What's not clear is how often the arrhythmia is an isolated postoperative event or an arrhythmia that is likely to persist. To investigate, Dr. Alanna Chamberlain and colleagues at Mayo Clinic, in Rochester, Minnesota, took a look back at 452 patients with new-onset AF within 30 days after noncardiac surgery between 2000 and 2013. They were matched 1:1 on age, sex, year of surgery and type of surgery to patients who had noncardiac surgery but did not develop postoperative AF. In both groups, the median age was 75 years and 52% were men. Patien...


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