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2.
Sleep Med ; 93: 56-62, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35427823

RESUMEN

INTRODUCTION: Leptin, a hormone related to satiety, has been studied because of its association with obesity and sleep apnea. The distribution of leptin receptors in the brain stem, and in the hypoglossal nucleus, has not yet been described. The stimulation of these muscles has been studied in the treatment of sleep apnea. OBJECTIVE: to detail the presence of leptin receptors in the nuclei of these nerves to enable studies of stimulation of this region through leptin. METHODS: the brains of five cadavers, removed during necropsy, collected at the Death Verification Service were included. An informed consent was signed by a family member (wife, mother or son/daughter) who answered specific questionnaire concerning comorbities. Anthropometric measurements were recorded. The medulla oblongata and pons fragments were identified. Immunohistochemical staining analysis was performed to identify the location of the leptin receptors. RESULTS: In the immunohistochemical analysis an intense staining signal of the brownish coloration of neurons was evidenced in the hypoglossal nerve nucleus, moderate in the olivary nucleus and mild in the dorsal nucleus of the vagus and trigeminal nucleus. In motor neurons, more intense brown pigmentation can be observed in the nucleus and cytoplasm when compared to sensory neurons. CONCLUSION: The immunoexpression of leptin receptor was demonstrated in the motor neurons of the human hypoglossal nucleus. These results may contribute to unravel details of the pathophysiology of neuromuscular control of airway collapse during sleep and to the development of new drugs capable of improving the neuromuscular tone of upper airway in apneic individuals.


Asunto(s)
Receptores de Leptina , Síndromes de la Apnea del Sueño , Resistencia de las Vías Respiratorias , Tronco Encefálico , Humanos , Leptina , Neuronas Motoras , Sueño
3.
Int Arch Otorhinolaryngol ; 25(3): e383-e385, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34377172

RESUMEN

Introduction The predictability of nasal tip projection and rotation after aesthetic surgery is a challenge. Tongue-in-groove (TIG) is an effective technique to control tip projection and rotation, but there may be a small loss of projection and rotation of the tip lobe due to lack of support between the anterior septal angle and the domus, since this region is sustained by medial crusts suture-linked and interdomus sutures. Objective To describe a new surgery technique in an attempt to correct the lack of support for the nasal tip after lowering the nasal dorsum. Methods The horn technique consists in preserving a square of cartilage during the removal of the nasal dorsum and septum excess in patients with long and projected nose. This piece will give greater support to the TIG technique and greater predictability of the rotation and projection of the nasal tip. Results Between 2016 and 2018, 50 patients with long and projected noses were submitted to the "horn technique" surgery. They were submitted to the TIG technique associated to the horn technique. A retrospective review of the preoperative and postoperative photographs (3 months to 1 year) of these patients treated with the horn technique were analyzed and showed better support of the nasal tip. Conclusion The horn technique provides greater support to the projection and rotation of rhinoplasties in patients with long and projected nose.

4.
J Voice ; 30(6): 761.e1-761.e9, 2016 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-26547607

RESUMEN

OBJECTIVES: Voice disorders affect adults and children and have different causes in different age groups. The aim of the study is to present the etiology and diagnosis dysphonia in a large population of patients with this voice disorder.for dysphonia of a large population of dysphonic patients. METHODS: We evaluated 2019 patients with dysphonia who attended the Voice Disease ambulatories of a university hospital. Parameters assessed were age, gender, profession, associated symptoms, smoking, and videolaryngoscopy diagnoses. RESULTS: Of the 2019 patients with dysphonia who were included in this study, 786 were male (38.93%) and 1233 were female (61.07). The age groups were as follows: 1-6 years (n = 100); 7-12 years (n = 187); 13-18 years (n = 92); 19-39 years (n = 494); 41-60 years (n = 811); and >60 years (n = 335). Symptoms associated with dysphonia were vocal overuse (n = 677), gastroesophageal symptoms (n = 535), and nasosinusal symptoms (n = 497). The predominant professions of the patients were domestic workers, students, and teachers. Smoking was reported by 13.6% patients. With regard to the etiology of dysphonia, in children (1-18 years old), nodules (n = 225; 59.3%), cysts (n = 39; 10.3%), and acute laryngitis (n = 26; 6.8%) prevailed. In adults (19-60 years old), functional dysphonia (n = 268; 20.5%), acid laryngitis (n = 164; 12.5%), and vocal polyps (n = 156; 12%) predominated. In patients older than 60 years, presbyphonia (n = 89; 26.5%), functional dysphonia (n = 59; 17.6%), and Reinke's edema (n = 48; 14%) predominated. CONCLUSIONS: In this population of 2019 patients with dysphonia, adults and women were predominant. Dysphonia had different etiologies in the age groups studied. Nodules and cysts were predominant in children, functional dysphonia and reflux in adults, and presbyphonia and Reinke's edema in the elderly.


Asunto(s)
Disfonía/diagnóstico , Disfonía/etiología , Laringoscopía , Grabación en Video , Calidad de la Voz , Adolescente , Adulto , Distribución por Edad , Niño , Preescolar , Disfonía/fisiopatología , Femenino , Hospitales Universitarios , Humanos , Lactante , Masculino , Persona de Mediana Edad , Ocupaciones , Valor Predictivo de las Pruebas , Factores de Riesgo , Distribución por Sexo , Fumar/efectos adversos , Adulto Joven
5.
J Voice ; 26(1): 127-31, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21353466

RESUMEN

SUMMARY: Mucosal bridges are rare laryngeal lesions probably of genetic origin. They may cause dysphonia of varying degrees, especially when associated with other laryngeal lesions such as vocal sulci and cysts. Reports on mucosal bridges are rare, and the better treatment is inconclusive. AIM: To report the authors' experience in 14 cases of mucosal bridge showing details on endoscopic examinations and treatment. STUDY DESIGN: Retrospective study. METHODS: We reviewed the medical records of 14 patients with a diagnosis of mucosal bridge confirmed by videolaryngostroboscopy and direct laryngoscopy who attended the Outpatient Clinic of Voice Disorders of the Discipline of Otorhinolaryngology, Botucatu Medical School, São Paulo State University, São Paulo. Data collected included information on gender, age, symptoms, time of onset, history of intubation, smoking status, alcohol intake, associated laryngeal lesions, treatment, and GRBAS (grade of hoarseness, roughness, breathiness, asthenia, and stress) scale ratings. RESULTS: Of 14 patients, 10 were females and four were males. There was a prevalence of adults (n=12), with only two of the patients being younger than 13 years (10 and 13 years). Mucosal bridges showed no correlations with smoking, alcohol intake, or gastroesophageal and sinonasal symptoms. Voice abuse was reported in 50% of the cases that consisted of patients who had high-voice demand occupations. In seven cases, mucosal bridges were associated with other laryngeal lesions, particularly vocal cysts and sulci. All patients who underwent surgery and phonotherapy showed improved vocal quality. CONCLUSIONS: We documented 14 patients with dysphonia caused by mucosal bridge. Promising results were obtained with surgery.


Asunto(s)
Laringoscopía/métodos , Pliegues Vocales/patología , Trastornos de la Voz/diagnóstico , Calidad de la Voz/fisiología , Adolescente , Adulto , Niño , Diagnóstico Diferencial , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Membrana Mucosa/patología , Membrana Mucosa/cirugía , Estudios Retrospectivos , Resultado del Tratamiento , Pliegues Vocales/fisiopatología , Pliegues Vocales/cirugía , Trastornos de la Voz/etiología , Trastornos de la Voz/cirugía , Adulto Joven
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