Korean J Anesthesiol.  2015 Oct;68(5):442-448. 10.4097/kjae.2015.68.5.442.

The effect of dexmedetomidine sedation on patient and surgeon satisfaction during retinal surgery under sub-tenon's anesthesia: a randomized controlled trial

Affiliations
  • 1Department of Anesthesiology and Pain Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea. soonnim@schmc.ac.kr
  • 2Department of Ophthalmology, Soonchunhyang University Seoul Hospital, Seoul, Korea.

Abstract

BACKGROUND
The purpose of this study was to evaluate the effect of intraoperative dexmedetomidine sedation on patient's and surgeon's satisfaction during retinal surgery under sub-tenon's anesthesia.
METHODS
Forty-four patients scheduled for elective retinal surgery under sub-tenon's anesthesia were enrolled in this randomized controlled trial. The patients were divided into Dexmedetomidine (n = 22) and Control (n = 22) groups. Intravenous dexmedetomidine or 0.9% saline via infusion pump were administered continuously to the dexmedetomidine or control group, respectively. Ramsay sedation scale with a target level of 3-4 was used to assess adequacy of sedation. Perioperative pain, hemodynamic and respiratory data were collected, while satisfaction from patients and surgeon were assessed post-surgery using a 5-point satisfaction scale.
RESULTS
Patient and surgeon satisfaction was higher in the dexmedetomidine group (P < 0.001, P = 0.002, respectively). The pain associated with sub-tenon's anesthesia and peripheral vitrectomy was lesser in the dexmedetomidine group than in the control group (P = 0.020). There was significant reduction of heart rate in the dexmedetomidine group (P = 0.001), but only one patient needed treatment with atropine. There was no respiratory effect on both groups.
CONCLUSIONS
Dexmedetomidine sedation during retinal surgery improved satisfaction from both patient and surgeon without respiratory complication. It is a safe and preferable choice of sedation for retinal surgery.

Keyword

Conscious sedation; Dexmedetomidine; Patient satisfaction; Vitreoretinal surgery

MeSH Terms

Anesthesia*
Atropine
Conscious Sedation
Dexmedetomidine*
Heart Rate
Hemodynamics
Humans
Infusion Pumps
Patient Satisfaction
Retinaldehyde*
Vitrectomy
Vitreoretinal Surgery
Atropine
Dexmedetomidine
Retinaldehyde
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