Can clonidine as a pre-anaesthetic drug decrease bleeding during rhinoplasty surgery?

Area of Science:

• Anesthesiology
• Pharmacology

Background:

• Clonidine, an alpha-2 adrenergic agonist, is known for its antihypertensive, anxiolytic, and analgesic properties.
• Previous studies suggest Clonidine's efficacy in reducing bleeding during various surgical procedures, including neurosurgery, orthopedics, and endoscopic surgeries.

Purpose of the Study:

• To investigate the effect of oral Clonidine as a pre-anesthetic medication on blood loss during rhinoplasty surgery.

Main Methods:

• A double-blinded, placebo-controlled clinical trial involving 80 patients undergoing rhinoplasty.
• Patients were randomized to receive either 5 µg/Kg of oral Clonidine or a placebo pre-operatively.
• Blood loss was quantified post-surgery by counting bloody standard gauzes, with patients categorized into four groups based on the amount of bleeding.

Main Results:

• The group receiving oral Clonidine exhibited a statistically significant reduction in bleeding compared to the placebo group (P < 0.05).
• Fewer patients in the Clonidine group fell into the higher bleeding categories (groups 3 and 4) compared to the placebo group (1.8 ± 0.04 vs. 3.1 ± 0.05).

Conclusions:

• Oral Clonidine administration as a pre-anesthetic agent effectively decreases intraoperative bleeding during rhinoplasty.
• Clonidine represents a viable option for managing blood loss in patients undergoing nasal and sinus endoscopic surgeries.