PROCEDURE OF ENDOSCOPIC SURGICAL EXCISION POSTERIOR PART OF UNILATERAL VOCAL CORDS WITH ULTRASONIC SURGICAL KNIVES TREATING BILATERAL VOCAL CORD PARALYSIS

Abstract

Background: Bilateral vocal cord paralysis result from damaging to the both recurrent laryngeal nerve which control the opening and closing of the two vocal cords, make the the two vocal cords immobile in the closed position, causing partly or completely glottis narrowing. Patients suffering from bilateral vocal cord paralysis express acute or chronic laryngeal dyspnea, snoring, and reduced quality of life. Endoscopic surgical excision posterior part of unilateral vocal cords with monopolar, bipolar, CO2 laser was applied for many years in the world. In Vietnam, the Department of Otolaryngology of Gia Dinh People's Hospital, has used ultrasonic surgical knives in this surgery since 2019 to help improve the quality of life for patients. Objectives: To build the procedure of the surgical excision posterior part of unilateral vocal cords using ultrasound knife via endoscopy in treatment of bilateral vocal cord paralysis and evaluate the results of this surgical method. Method: With 14 patients of bilateral vocal cord paralysis. a clinical interventional study was carried out from 2019-2022 in Gia Dinh people’s Hospital.
Result- Discussion: From 2019 to 2022, with the 14 patients bilateral vocal cord paralysis study, We had a follow-up after surgery at 1 month, 3 months, 6 months. Evaluation results according to subjective and objective criteria: 100% cases improve airway, no cases of recurrent dyspnea, patients with hoarseness after surgery showed improvement after speech therapy. Conclusion: Results of Surgical excision posterior part of unilateral vocal cords using ultrasound knife via endoscopy improved airway for patients of bilateral vocal cord paralysis with safety, shorten hospital stays, helped to solve dyspnea but still preserved speech and swallowing function. Patients sastify with the surgical results.