Optimizing Reversal of Muscle Relaxation with Sugammadex to Accelerate Discharge Readiness in Operative Laryngoscopy: A Randomized Clinical Trial.

ABSTRACT

IMPORTANCE Operative laryngoscopy is a commonly performed ambulatory procedure in patients with significant co-morbidity. Optimal anesthetics for surgical exposure with rapid return to baseline after the procedure enhances postoperative patient safety. OBJECTIVE: To determine whether sugammadex hastens recovery in patients undergoing operative laryngoscopy under general anesthesia with rocuronium-induced paralysis. DESIGN: Prospective clinical intervention randomized single-blinded, single-center study in an academic tertiary care center. Approved by the institutional review board and registered with ClinicalTrials.gov. SETTINGS Single center tertiary care academic institution. PARTICIPANTS: 18 years or older, American Society of Anesthesiology physical status I-III with ability to give written informed consent undergoing operative laryngoscopy. INTERVENTION Participants were randomized into two groups. Both groups received inhaled anesthetic sevoflurane, remifentanil, and rocuronium at 0.6-1.2 mg/kg for intubation and anti-nausea prophylaxis. Group 1 received reversal with neostigmine (0.04 mg/kg) and glycopyrrolate (0.01 mg/kg). Group 2 received reversal with sugammadex (4 mg/kg). Vital signs were maintained at 20% of baseline in both groups. Post anesthesia care unit nurses were blinded to the reversal agent and were the evaluators of the discharge criteria and times. Primary end point was time to extubation after the procedures and secondary end points were Subjective interpretation of surgical conditions by the surgeon, hemodynamic, respiratory parameters, anesthetics, and opioids used, operative time, and duration to achieve discharge readiness. RESULTS: A total of eighty-four participants, who were similar in age, sex, and weight in both groups. The primary end point and secondary end points were similar except time to meet discharge criteria in the two groups. 65% in the sugammadex versus 35% in the neostigmine group met Aldrete criteria of 18 or higher on arrival at the post anesthesia care unit. CONCLUSIONS: Optimizing the anesthetic regimen, along with stable intraoperative hemodynamics and reversal with sugammadex improves discharge readiness in patients undergoing operative laryngoscopy.