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Reduced-dose rocuronium for day-case tonsillectomy in children where volatile anaesthetics are not used: operating
Dubravka Bartolek1, Jasminka Jakobović, Franjo Bartolek
1Department of Anaesthesiology and Intensive Care Medicine, University Clinic of Traumatology, Kuhaceva, Zagreb, Croatia. dubravka.bartolek1@zg.t-com.hr
Objectives:
Mivacurium, rocuronium, and vecuronium are neuromuscular blocking agents (NMB) commonly used in pediatric day-case anesthesia. Mivacurium is the most appropriate NMB for short surgical procedures where NMB drugs were required but is not available in all countries.
Aim:
We evaluated the operating room time minimization after reduced-dose rocuronium (0.45 mg x kg(-1)) during elective day-case tonsillectomy in children.
Methods/Materials:
One hundred and five children (6-9 years, ASA I/II status) scheduled for day-case tonsillectomy were included in prospective, double blind clinical study. Children were randomly divided in three equal groups. All children were premedicated (midazolam 0.25 mg x kg(-1) orally, EMLA). Anesthesia was induced (2.5 mg x kg(-1)) and maintained (0.1 mg x kg(-1) x min(-2)) by propofol and alfentanil (0.0015 mg x kg(-1) x min(-1)) and supplemented by inhalation mixture of 50% of O2/Air. Neuromuscular block was achieved by vecuronium (0.1 mg x kg(-1)) (V) or rocuronium in standard (0.6 mg.kg(-1)) (R) or reduced dose (0.45 mg x kg(-1)) (LD). Neuromuscular transmission was monitored by acceleromyography. Time analysis of NMB drugs action was performed.
Results:
Time difference from the end of tonsillectomy to T90 neuromuscular block recovery was significantly shorter in LD Group (7.3 +/- 0.41 min), (V = 15.9 +/- 1.06, R = 16.0 +/- 1.7 min) (P = 0.0011). The onset time of neuromuscular block was prolonged in LD Group (LD=3.1 +/- 0.4, R = 1.3 +/- 0.4, V = 2.2 +/- 0.2 min) (P = 0.0039) without changing the intubating conditions. The maximum operation room time saving per each tonsillectomy was 37% in LD Group (Group V 21%, Group R 17%) (P = 0.0001). Low incidence of postoperative nausea and vomiting (PONV) 3-6% (0.4577) and good visual analog scale (VAS) score (< or =2) (0.5969) were found in all study groups 12 h after surgery.
Conclusions:
Reduced-dose rocuronium in addition with propofol and alfentanil in children where volatile anesthetics are not used effectively saves the operating room time during short elective surgical procedures, avoids delays in patient recovery, allows high level of acceptable intubating conditions, and improves the optimal surgical work. Low incidences of PONV as VAS score may achieved successfully.
Insights
Reduced-dose rocuronium in pediatric anesthesia significantly shortens operating room time and speeds patient recovery. This approach offers a safe and effective alternative for short surgical procedures, improving surgical workflow and patient outcomes.
Area of Science:
- Anesthesiology
- Pediatric Surgery
- Pharmacology
Background:
- Neuromuscular blocking agents (NMB) like mivacurium, rocuronium, and vecuronium are vital in pediatric anesthesia.
- Mivacurium is ideal for short procedures but lacks global availability.
- Optimizing NMB use is crucial for efficient day-case surgeries in children.
Purpose of the Study:
- To evaluate the operating room time reduction using a reduced dose of rocuronium (0.45 mg/kg).
- To assess the impact of reduced-dose rocuronium on intubating conditions and patient recovery.
- To compare the efficacy of reduced-dose rocuronium with standard doses and vecuronium in pediatric tonsillectomy.
Main Methods:
- A prospective, double-blind study involving 105 children (6-9 years, ASA I/II) undergoing day-case tonsillectomy.
- Random assignment into three groups receiving vecuronium (0.1 mg/kg), standard rocuronium (0.6 mg/kg), or reduced-dose rocuronium (0.45 mg/kg).
- Anesthesia maintained with propofol and alfentanil; neuromuscular transmission monitored via acceleromyography.
Main Results:
- Reduced-dose rocuronium significantly shortened the time to neuromuscular block recovery (7.3 min vs. 15.9-16.0 min).
- Onset time was prolonged with reduced-dose rocuronium (3.1 min vs. 1.3-2.2 min) but maintained acceptable intubating conditions.
- Maximum operating room time savings of 37% were achieved with reduced-dose rocuronium, alongside low incidences of postoperative nausea/vomiting (3-6%) and good pain scores.
Conclusions:
- Reduced-dose rocuronium, combined with propofol and alfentanil, effectively saves operating room time in pediatric day-case surgery.
- This approach accelerates patient recovery, ensures acceptable intubating conditions, and optimizes surgical work.
- Low rates of postoperative nausea, vomiting, and pain are achievable with this anesthetic regimen.
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