PubMed Health⌕ Search

Biomedical subjects

P A Pontes

Publications and source records attributed to P A Pontes.

11 recordsLinked to original sources
PubMed1999

Vestibular vocal fold behavior during phonation in unilateral vocal fold paralysis.

Voice quality in patients with vocal fold paralysis can be affected by several factors, such as the position of the paralyzed vocal fold, its degree of atrophy, the configuration of its free edge, and the level differences between both vocal folds. Depending on the related vocal deficiency the patient will attempt to compensate using different maneuvers, such as increment of vocal tract and neck muscle contraction to improve glottal closure. This is probably one of the reasons why ventricular folds are frequently requested. The objective of this study is to analyze the behavior of the homolateral and contralateral vestibular folds to delineate patterns of vestibular motion during sustained phonation, in cases of unilateral vocal fold paralysis.

Humans↗
PubMed1997

Effect of voice rehabilitation on oral communication of Parkinson's disease patients.

Voice and speech disorders are common in Parkinson's disease patients and may lead to social isolation. We employed routine clinical voice therapy measures to evaluate the effect of voice rehabilitation. Twenty patients with a stable drug regimen participated in this study. The patients were assessed before and after a program of voice rehabilitation consisting of 13 group therapy sessions during 1 month, with emphasis on the increase in laryngeal sphincteric activity. Voice rehabilitation produced an increase in maximal phonation times, decrease in the values of s/z ratio and air flow, increase in vocal intensity, decrease in the complaints of weak and strained-strangled voice and monotonous and unintelligible speech and elimination of complaints of swallowing alterations. These data indicate a greater glottic efficiency after voice rehabilitation reflecting a more functional oral communication.

Aged↗
PubMed1997

[Psychiatric reform in the state of Ceara: a case description].

By employing systematic and nonparticipating observation, the research aimed at studying the operation of a new mental health service in the state of Ceará, Brazil, and obtaining indicators of its continuity and stability. It was concluded that the service is still trying to find its field of action, opposing to unnecessary psychiatric hospitalization but the excessive number of patients the small number of professionals living at the place and the unrealiable job contract jeopardize its future.

Brazil↗
PubMed1992

Identification of the external branch of the superior laryngeal nerve during thyroidectomy.

Seventy-six patients underwent preoperative vocal evaluation and were randomized into 3 groups: (1) those with the superior thyroid pole dissected by the first author, with the external branch of the superior laryngeal nerve (EBSLN) identified by means of a nerve stimulator; (2) those patients whose dissection was executed by a resident, with no nerve search; and (3) those whose dissection was undertaken by the first author, without any nerve search. Postoperative analysis consisted of voice evaluation and electromyography of the cricothyroid muscle. No lesion occurred in patients in group 1. Twenty-eight percent of patients in group 2 and 12% in group 3 experienced a complete lesion of the EBSLN (p = 0.0123). When the patients in group 1 were compared with the patients with 62 nerves corresponding to nonoperated thyroid lobes, patients in group 1 exhibited no increased risk, whereas a significantly increased hazard was evident in both groups 2 (p = 0.0002776) and 3 (p = 0.0346393). In this study, effective prevention of iatrogenic EBSLN lesions during thyroidectomies was achieved only by the intraoperative identification of the nerve with the nerve stimulator.

Adult↗
PubMed1991

[Partial vertical laryngectomies and reconstruction with plathysma myocutaneous flap].

The authors report on 14 patients with epidermoid carcinoma of the glottic region, classified T1, T2 and T3, operated upon by a hemilaryngectomy (9 cases) with reconstruction using a Plathysma myocutaneous flap. The oncological results over a follow-up period of 1 to 6 years and the functional results are analyzed. The authors conclude that this method does not compromise the carcinological result and provides a good functional result with low ratings for complications, with in addition an adequate support for the organ, favouring increased resections.

Adult↗
PubMed1989

[Histochemical detection of glycoproteins and glycosaminoglycans in the respiratory mucosa of albino rats during estrous cycle, pregnancy and puerperium].

In this work we attempted to detect, with histochemical methods, the possible modifications in the mucus of the respiratory mucosa of albino female rats during estral cycle, pregnancy and puerperium. Based on its results, it was possible to conclude that: a--There were no modifications in the nature of the epithelial and supraepithelial mucus during the studied periods: b--The Alcian Blue staining from lamina propria is absent during pregnancy and present during puerperium.

Animals↗
PubMedDate not supplied

[Partial vertical laryngectomies: reconstruction with a platysma myocutaneous flap].

Partial vertical laryngectomies have been performed successfully for nearly one century. Hemilaryngectomies may present more evidence of difficulties and complications and both can be controlled with reconstructive methods. Thus, the authors present 6 patients with T1 and T2 glottic tumors submitted to hemilaryngectomy (5 cases) and to frontolateral laryngectomy (1 case) reconstructed with platysma myocutaneous flap. The oncologic and functional results were analyzed for follow-up from 2 to 5 years. Observation was made of time for decanulization, start of swallowing, presence of oro-tracheal. aspiration, vocal quality (roughness, breathiness, and inteligillity), physical activity, and complications. The authors conclude that such a method does not affect oncologic results and represents an adequate support to the organ, facilitating amplified resections.

Adult↗