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Acoustic comparison between two different techniques of endoscopic resection of benign laryngeal lesions




Microdebrider as a new technology in the management of laryngeal lesions is a powered rotatory dissection device with suction assistance; it was used before in orthopedic surgery and sinus surgery. The aim of this work was to assess the microdebrider as a tool for excision of benign laryngeal lesions and compare its results (intraoperative and postoperative) with those of microlaryngeal surgery by cold instruments.

Patients and methods

Forty patients with benign vocal fold lesions were included (25 women and 15 men), with age ranging from 24 to 51 years. Group I was subjected to excision of lesions by the conventional instruments. Group II was subjected to excision of lesions by the microdebrider. Each patient was subjected to the protocol of voice assessment preoperatively and 3 weeks postoperatively. The patients were assessed subjectively by Voice Problem Self-Assessment Scale and objectively by laryngoscopy, stroboscopy, and acoustic analysis.


No significant difference in the acoustic parameters between the two groups was observed, but there was significant difference between the preoperative and the postoperative acoustic parameters for each group. Postoperative parameters satisfactorily improved with resolution of the lesions in both groups.


The microdebrider was determined to be a safe, accurate, and reliable method in removal of benign vocal fold lesions but does not offer major advantages compared with the standard instruments.


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Correspondence to R. M. Maghraby.

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Abdel-Monam, M.H., Gaafar, A.H., Maghraby, R.M. et al. Acoustic comparison between two different techniques of endoscopic resection of benign laryngeal lesions. Egypt J Otolaryngol 30, 264–267 (2014).

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