Remimazolam Bolus Prevents Emergence Agitation After Rhinologic Surgery: A Randomized, Triple-Blind, Controlled Trial

Grgur Prižmić1, Filip Periš1, Marinela Jozeljić Pešić1

  • 1Department of Anaesthesiology, Division of Anaesthesiology, University Hospital of Split, 21000 Split, Croatia.

Insights

A single dose of remimazolam effectively prevented emergence agitation in patients undergoing nasal surgery. This intervention did not delay patient recovery, offering a promising solution for managing post-operative complications.

Area of Science:

  • Anesthesiology
  • Pharmacology
  • Surgical Recovery

Background:

  • Emergence agitation (EA) is a frequent complication following rhinologic surgery, leading to potential self-injury and extended PACU stays.
  • Remimazolam, an ultra-short-acting benzodiazepine, is investigated for its potential to mitigate EA without compromising recovery.
  • Current management strategies for EA often lack efficacy or delay patient discharge.

Purpose of the Study:

  • To assess the efficacy of a single remimazolam dose in reducing the incidence of emergence agitation in adult patients undergoing nasal surgery.
  • To evaluate the impact of remimazolam on early recovery parameters and safety outcomes post-rhinologic surgery.

Main Methods:

  • A prospective, randomized, triple-blind, placebo-controlled trial involving 62 adult patients undergoing elective rhinologic surgery.
  • Patients received either remimazolam (0.1 mg/kg) or saline placebo immediately before extubation.
  • Emergence agitation was quantified using the Richmond Agitation-Sedation Scale (RASS); secondary outcomes included Aldrete scores and pain (VAS).

Main Results:

  • Remimazolam administration resulted in a complete absence of emergence agitation (0% vs. 37.5%, p < 0.001).
  • Patients receiving remimazolam demonstrated significantly higher Aldrete scores at extubation (76.7% vs. 50.0%, p = 0.030), indicating faster recovery.
  • No severe agitation, postoperative nausea and vomiting (PONV), or clinically significant nasal bleeding occurred in the remimazolam group.

Conclusions:

  • A single perioperative dose of remimazolam effectively prevents emergence agitation after rhinologic surgery.
  • Remimazolam facilitates early recovery and does not prolong extubation or operative times.
  • This study supports remimazolam as a safe and effective option for managing emergence agitation in this patient population.

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