Incidência de alterações estruturais das pregas vocais associadas ao pólipo de prega vocal

Abstract

Phonot rauma is considered the main cause of vocal fold polyps (VFP). However, the authors believe that an underlying anatomical deviation could render the vocal folds more susceptible to such trauma. Aim: To prove this hypothesis a retrospective chart review was carried out to correlate the surgical findings of patients with VFP. Material and Methods: The charts of thirty-three patients who underwent surgery for excision of VFP were reviewed: 21 had right VFP, 10 had left VFP and 2 had bilateral lesions. Results: Associated lesions were reported in 27 patients (14 lesions on the opposite VF and 13 on the ipsilateral VF): 10 opposite nodules, 12 sulcus vocalis, 3 cysts, and 2 capillary engorgement. Discussion and Conclusions: The high incidence of associated anatomical lesions to the VF (63%) suggests that patients with these minor underlying anatomical deviations are more vulnerable to vocal abuse, probably because they present abnormal glottic closure and an irregular vibratory margin.

Characteristics of polypoid lesions in patients undergoing microsurgery of the larynx

“…The Chi-square test (significance level, p = 0.008) showed that the type of polyp was dependent on sex. The male predominance of angiomatous polyps (65.08%) is consistent with the findings reported in the literature 3 14 15 , but there was no male predominance of gelatinous polyps. Instead, these were more common in women (66.67%), which is a similar finding to that obtained by Dailey, who reported a female incidence of 62% among patients with gelatinous polyps 16 .…”

“…In our study, both angiomatous and gelatinous polyps were predominantly found on the right vocal fold ( p = 0.009), and so there is also a relationship between polyp type and its location on the vocal fold. Eckley et al reported similar findings 14 , whereas Sakae et al 17 reported that polyps were found in the left vocal fold in 53% of cases.…”

“…There was no statistical difference between the two groups (p = 0.97). In Eckley et al's study 14 , 37% of patients had reaction lesions, confirming the suspicion that the impact of the polyp on the healthy vocal fold can cause long-term alterations in the epithelial layer of the contralateral vocal fold 14 18 .…”

“…Regarding the MSA, stria were the most frequently encountered lesions (49.9%) in angiomatous polyps, whereas varicosity was predominant in gelatinous polyps (66.66%). In Eckley et al's study 14 , stria were the most frequently encountered MSA (70%).…”