Deep versus Moderate Neuromuscular Blockade During Total Hip Replacement Surgery on Postoperative Recovery and Immune...

Area of Science:

• Anesthesiology
• Surgical Outcomes
• Immunology

Background:

• Deep neuromuscular blockade (NMB) is known to improve surgical conditions in laparoscopic procedures.
• Its impact on non-laparoscopic surgeries and clinical outcomes remains less understood.
• The study investigates deep versus moderate NMB in total hip arthroplasty (THA).

Purpose of the Study:

• To compare the effects of deep NMB versus moderate NMB on the quality of recovery in THA patients.
• To assess the impact of deep NMB on postoperative inflammation and pain.
• To evaluate patient-reported outcomes following THA under different levels of NMB.

Main Methods:

• A single-center, randomized controlled blinded trial involving 100 THA patients.
• Patients received either deep NMB (posttetanic count 1-2) or moderate NMB (train-of-four 1-2) using rocuronium.
• Primary endpoint: Quality of Recovery-40 (QoR-40) score on postoperative day 1 (POD1). Secondary endpoints: innate immune function (TNF and IL-1β production) and pain scores on POD1.

Main Results:

• No significant difference was observed in QoR-40 scores between deep and moderate NMB groups on POD1 (P = .241).
• No differences in ex vivo production of TNF (P = .34) or IL-1β (P = .36) were found on POD1.
• Statistically, there was no significant difference in pain scores at rest (P = .049) or on movement (P = .080) on POD1.

Conclusions:

• Deep neuromuscular blockade does not offer a significant advantage over moderate NMB in total hip arthroplasty.
• No evidence suggests improved quality of recovery or reduced postoperative inflammation with deep NMB in this context.
• The findings indicate similar clinical and patient-reported outcomes for both NMB levels in THA surgery.