In our series, all IS patients with systemic embolism
had dominant mitral stenosis: 8 were in
sinus rhythm; 7 had atrial fibrillation, and in 6 of
these embolism occurred between i and 9 days after
the onset of the dysrhythmia. This feature reflects
the general tendency for embolism to occur shortly
after the onset of atrial fibrillation.