Infantile postoperative residual curarization (IPORC) - A prospective observational study.

Area of Science:

• Anesthesiology
• Pediatric Surgery
• Pharmacology

Background:

• Residual neuromuscular blockade (RNMB), a train-of-four ratio (TOFR) <0.90, is a known complication of neuromuscular blocking agents (NMBA).
• Data regarding RNMB incidence and monitoring in pediatric populations are limited.
• This study addresses the scarcity of information on RNMB in children undergoing surgery.

Purpose of the Study:

• To evaluate the rate of neuromuscular monitoring (NMM) in pediatric patients.
• To determine the incidence of RNMB in children.
• To assess the consequences of RNMB in this demographic.

Main Methods:

• An 84-day observational trial included children over 1 month receiving NMBA during elective/urgent surgery.
• A blinded investigator measured TOFR using acceleromyography before extubation.
• Demographic, surgical, anesthetic, and outcome data were collected; statistical comparisons used chi-square and Mann-Whitney U tests.

Main Results:

• The study analyzed 89 children, with a 65.2% rate of quantitative NMM and 5.6% for qualitative NMM.
• The incidence of RNMB was 10.1%, with TOFRs ranging from 0.48 to 0.89.
• Patients with RNMB had a shorter median time from last NMBA to TOFR measurement (88 vs. 110 min); qualitative NMM was more frequent in the RNMB group (22.2% vs. 3.8%).

Conclusions:

• RNMB poses a significant hazard in pediatric patients.
• Qualitative NMM is insufficient for ruling out RNMB in children.
• Enhanced institutional training programs for pediatric neuromuscular management are recommended to increase quantitative NMM rates.