Postoperative Phonetic Evaluation of Two Cases of Verrucous Carcinoma of the Larynx after Partial Laryngectomy with False Vocal Cord Advancement Flap

후두 우상암에서 후두 부분적출술 및 가성대 전진피판에 의한 성대 재건술 전후의 음성변화 : 2례

Verrucous carcinoma is a variant of highly differentiated squamous cell carcinoma and has a predilection for the oral cavity and larynx. It is known to be of good prognosis due to its low regional and distant metastatic potential. Peak incidence is at ages 40-69 while predominantly occuring in males and its association with tobacco smoking has been implicated. The verrucous carcinoma have accordingly been treated by radiotherapy or surgical procedures but there has been considerable controversy regarding the effect of radiotherapy due to the possibility of anaplastic transformation Laser surgery and partial resection are among the commonly used surgical procedures but laser surgery has not yet shown results in improving phonetic abilities. Authors experienced two cases of verrucous carcinoma of the larynx treated by partial laryngectomy and false vocal cord advancement flap who showed no recurrence of disease under stroboscopic examination after two year follow up and when compared to preoperative aerodynamic studies, the expiratory air pressure was decreased and mean air flow rate increased which improved glottal efficiency markedly.