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Biomedical subjects

M Sainz Quevedo

Publications and source records attributed to M Sainz Quevedo.

8 recordsLinked to original sources
PubMed2006

[Subjetive benefits and limitations in relation with the cochlear implant reported by adolescent and adult patients].

OBJECTIVE: To identify the subjetive benefits and limitations of the pre and postlingually adolescent and adult patients of the cochlear implants program at Clinical Hospital San Cecilio (Granada). MATERIAL AND METHODS: Cross-sectional study of 60 pre and postlingually deaf patients who received cochlear implant with more than 12 years and at least a year of experience. A open-ended questionnaire was used to value their subjetive experience. A descriptive analysis was made and we applied the square Chi and Mann-Withney tests. RESULTS: The average implant usage per day was greater in the postlingually patients (14.6 hours) that in the prelingually (10.4 hours). Between the acoustic benefits, both more frequent were the perception of environmental sounds and the possibility of to converse easier, specially with one or two persons. The benefit more indicated by the patients was the improvement in its mood. The perception in noise situations was the difficulty more indicated by all patients. The problems, in relation with the device, more frequently indicated were the size and the weight. CONCLUSION: the cochlear implant provides subjetive benefits to the patients that complement their improvement in perception of the oral language and facilitate the re/integration of the deaf patients at his work and in his social life. Therefore, the speech perception tests must be complemented with another type of materials to value the result of the cochlear implant and then we will can to speak of success or failure.

Adolescent↗
PubMed2004

[Endonasal and endocanalicular dacryocystorhinostomy by diode laser. Preliminary results].

AIM OF THE STUDY: To describe the surgical technique and to evaluate the clinical results after having performed the transcanalicular and endocanalicular dacryocystorhinostomies by diode laser, including the advantages and limits of this technique. METHODS: 34 were performed by diode laser in patients with clinical history of epiphora, with or without mucopurulent secretion, for nasolacrimal duct obstruction. The study was prospective, interventional, non randomized and non comparative. Diode laser was used to realize vaporization of lacrimal sac, osteotomy and vaporization with coagulation of nasal mucosa. The mean of surgical time was 15 minutes (range 7 to 29 minutes). Bicanalicular intubation was performed with a silicone tube and prolene filament for two months in all cases. Postsurgical follow-up was between 4 and 11 months. The degree of epiphora was evaluated by the Munk scale and lacrimal permeability was evaluated by endoscopic functional staining test in all cases. RESULTS: Out of the 34 DCR-EDN+ENC that were performed, 32 cases (94.11%) remain asymptomatic. Two of them (5.88%) required endonasal dacryocystorhinostomies by drilling, because the bony perforation was impossible to achieve by laser fiber. Two cases (5.88%) presented fibrosis and lacrimal and lower canaliculi obstruction, without epiphora because the superior canaliculi was permeable. CONCLUSION: Endonasal and endocanalicular dacryocystorhinostomy technique performed by diode laser is a valid method. It does not cause cutaneous scarring, it decreases thermic canalicular damage, it respects the lacrimal pump, it minimizes pain and bleeding, it needs less surgical time and it has turned into an out-patient procedure with a minimal surgical and postsurgical morbility.

Adult↗
PubMed2004

[Cochlear implant in postlingual adults with progressive hearing loss].

OBJECTIVES: To analize the results of patients with cohlear implants in postlingual adults with progressive hearing loss and to analize various predictive factors. MATERIAL AND METHODS: Prospective study of 42 patients with profound and progressive hearing loss. We analized the outcomes in the first two years of follow-up. We examined the results in regards to the of age at time of implantation, other handicaps, cause of hearing loss, age of onset, cochlear ossification and actives electrodes. We use the logo-auditory protocol developed at the University Spanish of navarra. RESULTS: All tests presented a significative improvement in the first six months (p<0.01 Student t or Wilcoxon test). After six months the results were not statistically significant. The more important predictive factors were percentage of life with hearing loss, percentage of life with profound hearing loss, cochlear ossification and actives electrodes thus the significancy was more relevant at a follow-up period of 3 months (p<0.05 Student t or Mann-Withney test). CONCLUSIONS: These patients showed clear benefits in a short period of time and the patients with unfavourable circumstances had a more slow progression but a similar final outcome.

Adolescent↗
PubMedDate not supplied

[Acoustic masking and Feldmann curves in tinnitus. Clinical study].

Eight-seven patients with severe tinnitus were studied. All patients underwent a complete audiological examination and tinnitus evaluation (pitch-matching, loudness, post-masking effect, masking curves, etc.). Most of the patients with a positive residual inhibition test had Feldman type I and III masking curves.

Audiometry, Pure-Tone↗