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07.01.2016 | Laryngology | Ausgabe 5/2016

European Archives of Oto-Rhino-Laryngology 5/2016

Photocoagulation therapy for laryngeal dysplasia using angiolytic lasers

Zeitschrift:
European Archives of Oto-Rhino-Laryngology > Ausgabe 5/2016
Autoren:
Yo Kishimoto, Ryo Suzuki, Yoshitaka Kawai, Nao Hiwatashi, Morimasa Kitamura, Ichiro Tateya, Shigeru Hirano

Abstract

In the management of laryngeal pre-cancerous lesions such as dysplasia or carcinoma in situ (CIS), it is important that lesion regression occur without any complications. As a minimally invasive treatment option, photocoagulation therapy using angiolytic lasers has been attracting attention. Therapeutic effects have been reported for this type of treatment, however, vocal function after treatment has not been well discussed. In this retrospective case series, we examined the therapeutic effects of photocoagulation therapy on laryngeal dysplasia and the impact on vocal function. Twenty-four patients with laryngeal dysplasia or CIS were treated with photocoagulation therapy using angiolytic lasers. Two patients were treated under general anesthesia, the remaining 22 patients were treated with topical anesthesia. Before and after treatment the extent of the lesion and vocal function was evaluated by endoscopic examination and acoustic and aerodynamic analyses, respectively. More than 50 % disease regression was observed in 20 of 24 patients. Acoustic and aerodynamic analyses revealed improvement in pitch perturbation quotient with no impairment in other parameters. Photocoagulation therapy using angiolytic lasers has proven to be feasible and safe for the treatment of laryngeal dysplasia.

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