Bilateral glossopharyngeal nerve block with 0.2% ropivacaine reduces postoperative pain and improves recovery outcomes in pediatric tonsillectomy compared to peritonsillar infiltration or sham control
In a double-blind RCT of 90 children (4-10 years) undergoing day-case tonsillectomy, bilateral glossopharyngeal nerve block (GNB) with 0.2% ropivacaine significantly prolonged time to first analgesic request (median 240 vs 120 min for control, P<0.001) and reduced pain at rest (2-12h) and during swallowing (2-24h) compared to sham control. GNB also reduced nausea (6.7% vs 20% RI and 33.3% control) and improved sleep quality and parental satisfaction, without increased sedation or major complications.
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Bilateral glossopharyngeal nerve block with 0.2% ropivacaine reduces postoperative pain and improves recovery outcomes in pediatric tonsillectomy compared to peritonsillar infiltration or sham control The current body of evidence comprises 1 study, including 1 randomized controlled trial. EvidenceHub rates the overall confidence at 44/100 (low).
The Claim
Bilateral glossopharyngeal nerve block with 0.2% ropivacaine reduces postoperative pain and improves recovery outcomes in pediatric tonsillectomy compared to peritonsillar infiltration or sham control
This conclusion is most relevant to: Children aged 4-10 years undergoing day-case tonsillectomy.
What the Research Shows
The conclusion draws on 1 linked study. Highlights from the cited literature:
- ▸Glossopharyngeal nerve block versus tonsillar fossa ropivacaine infiltration within multimodal analgesia for pediatric post-tonsillectomy pain: a randomized controlled clinical trial. (European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2026) —
How It Works
The proposed biological pathway:
- ▸Glossopharyngeal nerve block anesthetizes the sensory supply to the tonsillar fossa and posterior pharynx
- ▸This provides targeted analgesia to the surgical site
- ▸Reduced pain leads to lower opioid requirements and less nausea
- ▸Improved swallowing comfort and sleep quality, and higher parental satisfaction
Who Might Benefit
Evidence fit by population:
- ▸Children aged 4-10 years undergoing day-case tonsillectomy
Recommended Dose
0.2% ropivacaine (volume not specified in abstract)
Limitations & Caveats
Important context when interpreting this evidence:
- ▸Single-center study with relatively small sample size (30 per group)
- ▸No long-term follow-up beyond 24 hours; only immediate postoperative outcomes assessed
- ▸Potential for operator-dependent variability in nerve block technique
Frequently Asked Questions
What is the glossopharyngeal nerve block and how is it performed in children?▼
The glossopharyngeal nerve block is an injection of local anesthetic (ropivacaine) near the glossopharyngeal nerve, which supplies sensation to the tonsillar area. In this study, it was performed bilaterally under general anesthesia before the start of surgery.
How does glossopharyngeal nerve block compare to peritonsillar infiltration for pain control?▼
In this trial, GNB provided longer-lasting pain relief (up to 24 hours for swallowing pain) and reduced nausea compared to peritonsillar infiltration with the same local anesthetic. GNB also improved sleep quality and parental satisfaction.
Is glossopharyngeal nerve block safe for pediatric patients?▼
The study reported no serious anesthetic-related arrhythmias or bronchospasm in any group. GNB was associated with similar sedation scores to control, suggesting it is safe when performed by experienced anesthesiologists.
What are the benefits of GNB beyond pain relief?▼
Besides lower pain scores, GNB reduced the need for rescue analgesia, decreased postoperative nausea, and improved sleep quality and parental satisfaction, which are important for recovery after tonsillectomy.
References
- 1.Faramarzi M, Nemati M, Farbood A, Faramarzi A. “Glossopharyngeal nerve block versus tonsillar fossa ropivacaine infiltration within multimodal analgesia for pediatric post-tonsillectomy pain: a randomized controlled clinical trial..” European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2026. PMID: 42552476 DOI: 10.1007/s00405-026-10522-3