The present study examined whether onset of symptomatic subacute stent thrombosis (SAT) varies in a circadian manner after bare metal coronary stent implantation. Among 2,305 patients who underwent bare metal coronary stent implantation, 21 (0.9%) developed symptomatic SAT. Results of the present study indicate that onset of symptomatic SAT is more frequent between 6:00 A.M. and 12:00 P.M. than at any other measured 6-hour period during the day.
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