Publications by authors named "Andre de C Duprat"

Objective: The COVID-19 pandemic in Brazil affected the lives of singers, with negative impacts of the disease on the voice, such as dysphonia and throat clearing. This study aims to evaluate the presence of dysphonia and throat clearing in singers during the COVID-19 pandemic in Brazil.

Material And Methods: This is a cross-sectional analytical study with a sample of 154 singers from all over Brazil.

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Objective: To analyze the reliability of estimating the percentage of rhinopharyngeal obstruction by the adenoid using nasofibroscopy and its correlation with clinical symptoms.

Methods: Cross-sectional observational study was conducted, involving 80 patients between 4 and 14 years old, recruited from Santa Casa of São Paulo general otorhinolaryngology outpatient service during the years of 2020 and 2021. All patients underwent nasal endoscopy examination, and the recorded videos were randomly assigned to four evaluators in two different sessions, with a minimum interval of 1 month.

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Introduction: A challenge in phonosurgery is achieving good vocal quality with minimal vocal fold fibrosis. Fibrin glue can be applied to minimize fibrosis; however, its use in the larynx is based primarily on clinical experience, particularly in extensive lesions.

Objective: The objective of this study was to evaluate the effect of application of fibrin glue on collagen concentration at the late phase of the healing process after detaching a pedicled flap of the vocal fold cover in rabbits.

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Objective: To analyze the relationship between the presence of videolaryngoscopic signs suggestive of laryngopharyngeal reflux (LPR) and voice disorder (VD) in teachers.

Methods: this is a cross-sectional study with convenience sample and inclusion criteria as subjects 18 years or older, be a teacher female, seek care with complaint of VD and/or LPR. The exclusion criteria included smoking and presence of respiratory changes.

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Objective: This study investigated the effect of spinal manipulative therapy (SMT) on the singing voice of male individuals.

Study Design: Randomized, controlled, case-crossover trial.

Methods: Twenty-nine subjects were selected among male members of the Heralds of the Gospel.

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Objectives/hypothesis: To study the laryngeal electromyography pattern in patients with Parkinson's disease (PD) and vocal complaints at different stages of the disease.

Study Design: Cross-sectional cohort study.

Methods: Ninety-four adults with PD and vocal complaints at different stages of the disease (according to the Hoehn and Yahr scale) underwent laryngeal electromyography.

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Unlabelled: Multiple sclerosis is a neurological disease that involves swallowing disorders. Many studies have shown an association between neurological and swallowing performance, but results have been conflicting.

Objective: To identify the frequency of dysphagia in patients with multiple sclerosis and neurological indicators that can represent the performance of swallowing.

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Unlabelled: Acute dysphonia is a frequent condition in clinical practice. Its treatment, especially in adults, is not well established in the literature. Steroids are the most recommended drug treatment.

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Unlabelled: Fibrin sealants or fibrin glue are products made from human plasma proteins, which mimic the final pathway of the coagulation cascade. Its application to stimulate the healing process has been a topic of debate in the literature. The use of fibrin sealants in phonosurgery has been empirical; there have been no studies that investigate the action of fibrin sealant in Reinke's space.

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Objectives: To report the findings of unsuspected underlying concurrent abnormalities of the vocal fold (VF) associated with polyps.

Study Design And Setting: Retrospective chart review at tertiary teaching institution.

Subjects And Methods: Operative and clinical notes of 81 adults submitted to suspension laryngoscopy for vocal fold polyp (VFP) excision from 1998 to 2007, which had no previous report of associated structural abnormalities.

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Unlabelled: The supraglottic plan represents an important dimension in vocal production, and its characterization is very important in the evaluation and treatment approach of dysphonic individuals.

Aim: To check if certain glottic configurations are related to specific adjustments in the vocal tract. To use nasal and laryngeal fibroscopy to assess the frequency of supraglottic vocal tract adjustments in dysphonic women with nodules, clefts and cysts.

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The granular cell tumor (GCT) is an uncommon neoplasm, with slow progression, usually benign, that can be found in any organ. The most common region for GCT involvement is in the head and neck. Laryngeal involvement is uncommon and accounts for 6 to 10% of all cases reported.

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Unlabelled: Phonotrauma 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.

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Unlabelled: Larynx is extremely sensitive to endocrinologic changes. Most vocal fold mucosa alterations are caused by changes in vocal fold liquid content and its epithelial changes. Estrogen and progesterone interfere and change this liquid content in the vocal folds.

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Unlabelled: Despite the growing experience obtained from the National Pro-Voice Campaigns in screening individuals with laryngeal alterations, we still have not established which would be the best assessment method: speech and hearing screening alone, laryngoscopy alone, or a joint work with physicians and speech therapists doing the screening together.

Aim: the goal of the present study was to assess the sensitivity, specificity, positive and negative predictive values of the auditory voice-perception analysis compared to videolaryngoscopy as a screening method for individuals with laryngo-pharyngeal disorders.

Materials And Methods: We compared the vocal aspects (GRBASI scale, pitch, loudness, CPF and resonance) and videolaryngoscopic from 567 individuals who participated in the National Pro-Voice Campaign 2005 in a tertiary university hospital.

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The vocal fold is formed by tissues with abundant cells surrounded by an extracellular matrix. One of the most important components of the extracellular matrix is hyaluronic acid (HA). This study evaluated the inflammatory response of the vocal folds of rabbits submitted to local injection of Restylane HA.

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Unlabelled: Parkinson's disease affects the central nervous system resulting in voice quality alterations. It is typically resistant to drug therapy and often persists despite extensive behavioural speech and language therapy. Previous findings show that masking noise will produce a consistent increase in voice intensity in most normal individuals (Lombard's effect).

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Unlabelled: A longitudinal cohort study Introduction: Voice change may be defined as a group of changes in voice pattern that take place between childhood and puberty. During this period some vocal cord lesions (specifically cysts and nodules) may undergo transformation.

Aim: To evaluate changes in vocal cord structural lesions following voice changes.

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Unlabelled: The vocal fold structure is composed of tissues with many cells surrounded by the extra-cellular matrix. One of the most important components of the extra-cellular matrix is Hyaluronic Acid (HA). The aim of the study was to evaluate the inflammatory response of rabbit vocal folds after a local injection of Restylane HA.

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Fat implantation in the vocal fold is described as a method of repairing vocal fold histostructural lesions that correlate with mucosal wave abnormalities. The aim of this study was to evaluate the histologic behavior of autologous fat implants. A fat block was implanted in pockets surgically created in the vocal folds of rabbits, and the inflammatory process induced was compared to the status of the contralateral vocal fold.

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