PURPOSE OF REVIEW To review the recent literature on the etiology and pathophysiology of vocal fold nodules in adults. RECENT FINDINGS Research regarding the etiology of vocal nodules over the past 2 years supports previous thinking regarding the central role of voice misuse, overuse, and phonatory trauma. Advanced modeling techniques have helped elucidate mechanisms by which this may occur s...

Simulation of the phonatory flow-structure interaction has been conducted in a three-dimensional, tubular shaped laryngeal model that has been designed with a high level of realism with respect to the human laryngeal anatomy. A non-linear spring-based contact force model is also implemented for the purpose of representing contact in more general conditions, especially those associated with thre...

BACKGROUND The purpose of this study was to assess the factors influencing swallowing and phonatory results after partial laryngectomy. METHODS We carried out a medical chart review of patients who underwent partial laryngectomies between June 2003 and November 2010, focusing on functional outcomes. RESULTS Thirty-two patients were enrolled. No statistically significant difference was found...

OBJECTIVES Photoangiolytic lasers effectively treat glottal papillomatosis, but do not reliably prevent recurrence. Therefore, sublesional injections of the antiangiogenic agent bevacizumab (Avastin) were given to assess the effect on disease recurrence and phonatory function. METHODS A retrospective investigation was done in a pilot group of 10 adult patients with bilateral glottal papilloma...

Pediatric laryngotracheal stenosis occurs by either congenital or acquired causes and usually indicates subglottic stenosis. The main goals of treatment are decannulation, preserving phonation, normal swallowing function. Various types degrees combined anomalies would be the barriers to reaching successful results unless comprehensive understanding Multidisciplinary team approaches encompassing...

OBJECTIVES We investigated the long-term results of autologous fat injections for unilateral vocal cord paralysis and laryngofissure and cordectomy defects. PATIENTS AND METHODS We evaluated the efficacy of autologous fat injections in 21 patients (16 males, 5 females; mean age 57 years; range 24 to 72 years) with unilateral vocal cord paralysis (n=11) and cordectomy defects (n=10) in the lig...

Purpose The purpose of this study was to determine the validity of preliminary reports showing that glottal aerodynamic measures can identify pathophysiological phonatory mechanisms for phonotraumatic and nonphonotraumatic vocal hyperfunction, which are each distinctly different from normal vocal function. Method Glottal aerodynamic measures (estimates of subglottal air pressure, peak-to-peak...

OBJECTIVE Verify whether PDD reflects vocal changes obtained by vocal rehabilitation and whether it reflects the changes in perceptual analysis. METHODS Samples of the sustained vowel / ε /, pre and post-therapy, from 34 individuals with different dysphonia diagnosis were collected. The voices were acoustically analyzed by the PDD and an auditory perceptual analysis was performed using a visu...

The context of this study is the physical modeling of speech production. The first step of our approach is to realize in-vivo measurements during the production of the vowel-consonant-vowel sequence /apa/. This measurements concerns intra-oral pressure, acoustic pressure radiated at the lips and labial parameters (aperture and width of the lips) derived from a high-speed video recording of the ...