The efficacy of clonidine on intraoperative bleeding in middle ear microsurgery
Publish place: Iranian Journal of Otorhinolaryngology، Vol: 21، Issue: 57
Publish Year: 1389
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJOTO-21-57_003
تاریخ نمایه سازی: 13 تیر 1402
Abstract:
Introduction: The aim of this study was to evaluate the efficacy of clonidine on intraoperative bleeding in middle ear microsurgery. Materials and Methods: This prospective double-blinded clinical trial was performed on ۵۱ patients (ASA I, II), aged ۱۵-۶۰ year undergoing middle ear microsurgery. They were randomly assigned to receive either ۲۰۰ micrograms clonidine per oral or placebo ۹۰ minutes prior the operation in a double blind condition. Intraoperative bleeding was assessed on a four-point scale. Systemic blood pressure and heart rate were measured before and during surgery. Intraoperative bleeding, antihypertensive requirements, cardiovascular changes after intubation, post operative bleeding and reoperations were compared between two groups. Results: Clonidine group had a better bloodless surgical field than placebo group (P<۰.۰۵). Intraoperative consumption of antihypertensive drugs to reduce bleeding were significantly lower in the clonidine group (P<۰.۰۵). Heart rate and blood pressure were lower in the clonidine group, but their differences were not statistically significant. There was no significant difference in post operative bleeding and the rate of graft failure (reoperation) between two groups. Conclusion: Clonidine as a premedication can provide a bloodless surgical field and can improve surgical visibility during microsurgery.
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Authors
Arash Jafariye
Department of anesthesiology, Amir Alam Hospital, North Saadi Ave, Tehran, Iran
Fatemeh Hajimohammadi
Department of anesthesiology, Amir Alam Hospital, North Saadi Ave, Tehran, Iran
Afshar Etemadi Al-e-Agha
Department of anesthesiology, Amir Alam Hospital, North Saadi Ave, Tehran, Iran
Azadeh Salavatipour
General Practitioner
Mohsen Rajati Haghi
Assistant ear, throat, nose, ears Research Center, Mashhad University of Medical Sciences, throat and nose