The Role of Deep Neuromuscular Blockade and Sugammadex in Laparoscopic Hysterectomy: A Randomized Controlled Trial

Background/Objectives: Laparoscopic gynecologic surgery is widely utilized due to its minimally invasive nature. Postoperative discomfort, including intra-abdominal and referred shoulder pain, remains a challenge. This study evaluates the impact of deep neuromuscular blockade (NMB) reversed with sugammadex compared to moderate NMB reversed with neostigmine on postoperative pain, recovery, and surgical conditions in patients undergoing laparoscopic hysterectomy. Methods: This double-blind, randomized controlled trial included 228 patients undergoing laparoscopic hysterectomy under standardized pneumoperitoneum pressure (12 mmHg). Participants were randomized into two groups: deep NMB with sugammadex (SUG) and moderate NMB with neostigmine (NEO). Primary outcomes included postoperative pain (NRS) and neuromuscular recovery time (TOF ratio ≥ 0.9). Secondary outcomes were surgical conditions, surgeon satisfaction, extubation and recovery times, incidence of postoperative nausea and vomiting (PONV), and analgesic consumption. Results: The SUG group exhibited lower pain scores up to 24 h compared to the NEO group (p < 0.05). Pain reductions remained statistically significant up to 6 h postoperatively after Bonferroni correction, while differences beyond this time were not significant after adjustment. Neuromuscular recovery was markedly faster in the SUG group (147.58 ± 82.26 s vs. 488.02 ± 223.07 s, p < 0.05). Patients in the SUG group had shorter extubation (ΔT1), awakening (ΔT2), and recovery room transfer times (ΔT3). PONV was significantly lower in the SUG group. Deep NMB did not contribute to the improvement of surgical workspace conditions. Conclusions: Deep NMB with sugammadex enhances postoperative pain control and accelerates neuromuscular recovery in laparoscopic hysterectomy. These findings support the adoption of deep NMB with sugammadex as a valid anesthetic approach in laparoscopic hysterectomy procedures.