Dex vs SLNB in Spontaneous Breathing Via THRIVE for Laryngeal Surgery

Patients received a loading dose of dexmedetomidine at 1 µg/kg over 10 minutes, followed by a continuous infusion at 1 µg/kg/h throughout the procedure. This regimen was combined with TIVA (propofol) and THRIVE to support spontaneous breathing during endoscopic laryngeal surgery.

Following anesthesia induction, patients received bilateral ultrasound-guided superior laryngeal nerve blocks using 5 mL of 1% lidocaine per side. This intervention was combined with total intravenous anesthesia (TIVA) using propofol and high-flow nasal oxygenation (THRIVE) to maintain spontaneous respiration during endoscopic laryngeal surgery.