Cross-Cultural Adaptation, Validation, and Diagnostic Accuracy of the Voice Fatigue Handicap Questionnaire-Persian Version.

Objective: The current study aimed to determine the psychometric characteristics of a translated version of the Voice Fatigue Handicap Questionnaire in Persian by examining the validity, reliability, and diagnostic accuracy using data collected from people with and without dysphonia.

Study Design: Cross-sectional study.

Method: The original questionnaire was translated from Italian to Persian using the International Quality of Life Assessment criteria.

The Impact of Language on Voice: An LTAS Study.

Objectives: The present study investigates possible differences in sound characteristics associated with Farsi and Qashqai produced by Farsi-Qashqai bilinguals.

Study Design: This is a descriptive-analytical and cross-sectional study.

Methods: Thirty-two Farsi-Qashqai bilinguals (16 men and 16 women) participated in the study.

Computerized Analysis of Acoustic Characteristics of Patients with Internal Nasal Valve Collapse Before and After Functional Rhinoplasty.

Acoustic analysis of sounds produced during speech provides significant information about the physiology of larynx and vocal tract. The analysis of voice power spectrum is a fundamental sensitive method of acoustic assessment that provides valuable information about the voice source and characteristics of vocal tract resonance cavities. The changes in long-term average spectrum (LTAS) spectral tilt and harmony to noise ratio (HNR) were analyzed to assess the voice quality before and after functional rhinoplasty in patients with internal nasal valve collapse.

The occurrence of laryngeal penetration and aspiration in patients with glottal closure insufficiency.

Glottal closure during the pharyngeal phase of swallowing is one of the important steps in protecting the airway. Generally, it is believed that any deficiency in this process can lead to laryngeal penetration and aspiration. This study investigated the incidence of laryngeal penetration and aspiration among 44 patients with glottal closure insufficiencies that were referred for voice and swallowing evaluation to our institution.