NCT05435833

Glossopharyngeal Nerve Block for Post -Tonsillectomy Pain Relief

Ultrasound-Guided Submandibular Parapharyngeal Glossopharyngeal Nerve Block for Post -Tonsillectomy Pain Relief in Adults. A Prospective Randomized Study

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 50 (actual)
• Sponsor: Tanta University · Academic / Other
• Sex: All
• Age: 21 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

The aim of the present study is to evaluate the efficacy and safety of Ultra-sound guided submandibular parapharyngeal glossopharyngeal nerve block as regards time for first need of analgesic as a primary outcome as well as pain score, total postoperative analgesic requirement, and incidence of complications as secondary outcomes

Detailed description

Tonsillectomy is one of the most frequent surgical procedures performed all over the world that has been identified as being severely painful especially in the adult population. Management of post tonsillectomy pain is of paramount importance in order to improve swallowing and enhance oral intake as well as to decrease the risk of dehydration, infection and secondary hemorrhage with a subsequent hastening of recovery. A variety of analgesic regimens have been implemented to alleviate post-tonsillectomy pain, however; no consensus on the ideal analgesic regimen has been yet identified. The Ultrasound (US)-guided glossopharyngeal nerve (GPN) block has been acknowledged as a feasible option for providing perioperative analgesia in tonsillectomy patients. It blocks sensory impulses from the posterior third of the tongue, palatine tonsil, and mucous membranes of the mouth and pharynx. Conventional techniques for blocking the GPN carry the risk of vascular puncture, inadvertent block of closely adjacent other cranial nerves, with increased probability of local anesthetic toxicity and even upper airway obstruction. Recently, a novel, safe, and reproducible US-guided GPN block technique has been introduced by Azman et al, which would block the GPN distally, in the tissue plane just next to the pharyngeal wall and relatively far from high risk nearby structures.

Conditions

• Analgesia

Interventions

Type	Name	Description
PROCEDURE	bilateral ultrasound guided GPN block	a linear high frequency ultrasound probe will be initially positioned over the hyoid bone in the transverse plane, then the probe will be rotated to keep in line with the mandibular angle and the pharyngeal wall is identified by US. Using an in plane approach, a 22 G ,5 cm needle will be advanced till it reaches just superficial to the pharyngeal wall and 2.2 ml of 0.25% bupivacaine will be injected.

Timeline

• Start date: 2022-11-05
• Primary completion: 2023-08-01
• Completion: 2023-08-01
• First posted: 2022-06-28
• Last updated: 2023-11-24

Locations

1 site across 1 country: Egypt