Related Experiment Video
Updated: May 5, 2026

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring
Published on: December 14, 2020
[A follow-up study on velopharyngeal airway condition post pharyngoplasty]
Chao Liu1, Chuanqi Qin, Yan Wang
1State Key Laboratory of Oral Diseases, Dept. of Cleft Lip and Palate, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
Objective:
To observe changes in velopharyngeal airway condition post pharyngoplasty.
Methods:
Thirty-five patients underwent sphincter pharyngoplasty (SPP) or pharyngeal flap (PF). The follow-up period was approximately six months. Duration of velopharyngeal airway obstruction was recorded.
Results:
Average obstruction duration was (42.8 +/- 32.4) d. No significant difference in obstruction duration was found between the SPP and PF groups. Twenty-eight patients complained of mouth and lip dryness. Thirty-four patients experienced snoring while sleeping.
Conclusion:
Average obstruction duration post pharyngoplasty is 42.8 d. Oral respiration and snoring are common complications.
Related Concept Videos
Suctioning the Nasopharyngeal Airway
Equipment Required
Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Tracheostomy Care II: Procedure
Step 1: Perform hand hygiene, and put on personal protective equipment: gown, gloves, mask...
Pharynx
Nasopharynx
The nasopharynx, bordered by the conchae of the nasal cavity, serves exclusively as an air conduit. In its superior region, the pharyngeal tonsils or adenoids are located. These tonsils are clusters of lymphoid reticular tissue akin to a lymph node. The precise...
Esophageal Achalasia
Tracheostomy: Procedure and Tubes
Tracheostomy tubes can be made of semiflexible plastic (polyurethane or silicone), rigid plastic, or metal, and they come in...

