Purpose: Postoperative atrial fibrillation (POAF) after open heart surgery is common complication. POAF is reported to prolong hospital stay and increase long-term mortality, therefore prevention of POAF is important. It is widely known that beta blocker decrease POAF, and we had used oral beta blocker after open heart surgery. We examined the effect of intraoperative and postoperative administration of intravenous beta blocker( landiolol) for POAF.
Method: We evaluated 291 consecutive patients who underwent open heart surgery from November 2016 to November 2018. Those who underwent open heart surgery after November 2017 were 145, and 100 of the patients( group A) had intraoperative and postoperative landiolol administration. Those who underwent open heart surgery before November 2017 were 146, and 100 of the patients (group B) did not have landiolol administration. The primary endpoint was incidence of POAF within 7 days after surgery.
Result: There was no significant difference in preoperative character between the groups, other than the ratio of males to females( group A:54 males, 46 females;group B:68 males, 32 females;p<0.05). The incidences of POAF were 20% and 36% in group A and group B, respectively( p<0.05).
Conclusion: Intraoperative and postoperative administration of landiolol is effective for preventing POAF after open heart surgery.
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