Biomedical subjects

R García Tapia

Publications and source records attributed to R García Tapia.

3 recordsLinked to original sources

PubMed1998

[Prevalence of voice disorders among educational professionals. Factors contributing to their appearance or their persistence].

A study was made of the prevalence of voice disorders and their risk factors in teaching professionals of Logroño, Spain. A prevalence and case-control study was made, including interviews, ENT examination, videostrobolaryngoscopy, perceptual evaluation of hoarseness, basic aerodynamic tests, the physical range of phonation, and a physical analysis of the acoustic signal. The prevalence of voice disorders among Logroño teachers was 17.7% (confidence interval: 12.1-25%). Nodular lesions (8.1%) were the most frequent pathology, followed by hyperfunctional dysphonia (4.1%), chronic laryngitis (2.7%), polyps (1.4%), hypofunctional dysphonia (0.7%), and submucous suffusion (0.7%). Voice disorders were more prevalent in women (19.3%) than in men (15.6%), and among teachers of the lowest grades: 36.4% in nursery schools, 25% in elementary school, and 20.8% in junior school. The width and depth of classrooms, larger number of students, longer classroom hours, and noise level were related with the frequency of voice disorders.

Adult↗

PubMedDate not supplied

[Surgery of the posterior semicircular duct for the treatment of BPPV].

Benign paroxysmal positional vertigo (BPPV) is the most common cause of vertigo in the otolaryngology clinic. The liberatory maneuvers are the treatment of choice in this entity. In a low percentage of patients, about 5-10%, we found no response to the maneuvers. The occlusion of the posterior semicircular canal is offered for intractable cases. We report a case of woman with an intractable BPPV in which an occlusion of the posterior semicircular was done. We describe the indications, how to perform the surgery and the functional results of this technique.

Aged↗

PubMedDate not supplied

[Multi-dimensional analysis of vocal function. A case-control study].

The aim of this study was to select the most appropriate methods for analyzing vocal function from an array of existing tests. A case-control study (64 patients and 64 controls) was made of teaching staff in Logroño, Spain. The 64 patients had 25 nodules, 7 polyps, 15 hyperfunctional dysphonia, 6 hypofunctional dysphonia, 6 submucosal suffusion and 5 chronic laryngitis. The study methods included anamnesis, ENT examination, videostrobolaryngoscopy, perceptual evaluation of hoarse voices, basic aerodynamic tests, the frequency range of phonation, physical analysis of the voice signal of the vowel /a/ and the sentence ìmi padre era castellanoî, and spectrographic analysis of Spanish vowels according to Yanagiharaís classification using Sound Scope 1.0 software. We found no single test that consistently differentiated between hoarse and normal voices; values always overlapped. In contrast the phonation quotient (PQ), maximum phonation time (MPT) of the vowel /a/, S/Z quotient (Eckel and Boone), frequency range of phonation, APQ (average perturbation quotient), HNR (harmonic-to-noise ratio), BR (breathiness, or the high-frequency content of the source wave), RAP (relative average perturbation), standard deviation (SD) of the fundamental frequency (F0) of the vowel /a/, intensity and SD of the sentence ìmi padre era castellanoî, and the sound spectrographic analysis of Spanish vowels disclosed statistically significant differences between hoarse and normal voices.

Case-Control Studies↗