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• W2020572526 abstract "Background: The single most frequent complication after coronary artery bypass graft surgery is the occurrence of supraventricular tachyarrhythmias leading to a prolonged hospital stay. Although several drugs have been used to treat these arrhythmias, effective prevention was only possible with beta-blocking drugs in selected patients. It was, therefore, the aim of the present study to evaluate the significance of supraventricular tachyarrhythmias in presence of today's cardioprotective management in a broad spectrum of patients and to assess the possible preventive effect and safety of low-dose sotalol after coronary artery bypass graft surgery. Methods and Results: In a prospective randomized double-blind placebo-controlled trial, 220 consecutive patients referred for elective coronary artery bypass graft surgery were random ized to 80 mg sotalol twice daily (n = 110) or matching placebo (n = 110) for 3 months with the first dose given 2 hours before surgery. There were no significant differences in baseline charac teristics between the two groups. Low-dose sotalol reduced the rate of supraventricular arrhythmias from 43% (placebo) to 25% (sotalol, P <.01), which was atrial fibrillation in 83%, flutter in 7%, and other supraventricular arrhythmias in 10%. Only 7% of all arrhythmias were observed after day 9. Hospital stay was I 1 ± 4 days in patients with supraventricular arrhyth mias versus 9 ± 2 days ( P < .001) in patients without. On the fourth postoperative day, heart rate was lower in the sotalol group (75 ± 12 versus 86 ± 14 beats per min; P < .0001), but QTc was not significantly prolonged (sotalol, 0.44 ± 0.03; placebo 0.43 ± 0.03; P. ns). Study medica tion had to be discontinued due to side effects in 6.4% of sotalol and 3.6% of placebo patients (P. ns), but relevant side effects occurred only in two sotalol patients late after surgery. Conclusions: These data show that without antiarrhythmic therapy the incidence of supraventricular arrhythmias after coronary artery bypass graft surgery is high (43%) and that supraventricular arrhythmias were associated with a prolonged hospital stay (+2 days). Prophylactic treatment with low-dose sotalol reduced the incidence of supraventricular arrhythmias significantly (by 40%), thereby reducing overall hospital stay in treated patients. Because more than 90% of all supraventricular arrhythmic episodes occurred within 10 days after surgery and considering the small proarrhythmic effect of sotalol late after surgery, prophylactic treatment with sotalol may be recommended for the first 10 postoperative days to safely reduce supraventricular tachyarrhythmias." @default.
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• W2020572526 date "1998-09-01" @default.
• W2020572526 modified "2023-09-27" @default.
• W2020572526 title "Significance of Supraventricular Tachyarrhythmias After Coronary Artery Bypass Graft Surgery and Their Prevention by Low-Dose Sotalol: A Prospective Double-Blind Randomized Placebo-Controlled Study" @default.
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• W2020572526 doi "https://doi.org/10.1177/107424849800300302" @default.
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