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Biomedical subjects

C Morera

Publications and source records attributed to C Morera.

At least 55 records · Page 3Linked to original sources

[Validity of hand-held systems for otoacoustic emissions in hearing screening].

Hearing screening objective is the development of an universal screening. With that purpose, new hand-held system of Otoaccoustic Emissions have been designed, which are easier to perform and to interpret the results, to detect hearing loss disordersas soon as possible. To validate the hand-held systems of Otoaccoustic Emissions in the hearing screening, we have compared the results of the tests with Otoaccoustic Emissions clinic systems and tonal audiometry in two groups of population: new-borns and hearing-loss adults aged between 16 and 56. Our study showed that the hearing screening results in children with hand-held system were similar to classic Otoaccoustic Emissions system, but there were more than 40% of adult hearing losses not detected with this system. These results can invalidate the test.

Adolescent↗

[Medium and large acoustic neurinomas with normal tonal audiometry at the moment of diagnosis].

INTRODUCTION: Early diagnosis of an acoustic neurinoma for any possible treatment is important, especially in view of the relationship between surgical morbidity and the size of the tumour. The commonest presenting symptom of these tumors is unilateral perceptive deafness. However, between 4 and 12% are diagnosed before deafness occurs, although they may be large in size. Therefore one should remember other symptoms which lead to suspicion of these tumors, and have diagnostic guidelines available to allow the earliest possible detection. PATIENTS AND METHODS: We report four cases of acoustic neurinoma or vestibular schwannoma of medium or large size in which audiological studies did not at first give rise to suspicion of the presence of this tumour, since audition was considered to be normal at conversation frequencies (500 to 3,000 Hertz) for the age of the patient or who had an audiometry curve with symmetrical deafness in both ears. CONCLUSION: We evaluated the diagnostic importance of the tests done and compared the results with data published in the literature.

Adult↗

[Posttraumatic retropharyngeal hematoma of delayed onset].

Retropharyngeal hematoma (RE) is a rare occurrence. A case of RE in a 48-year-old man who suffered a whiplash trauma in a motor vehicle accident is reported. He had been receiving long-term aspirin therapy for ischemic heart disease. Management consisted on tracheostomy and medical treatment and the patient evolved satisfactorily. Whiplash injuries that take place in predisposed subjects can originate RE. Diagnosis is made by X-ray and CT. If acute airway obstruction occurs it is safer to perform tracheostomy than endotracheal intubation. If the lesion is non-expanding, medical treatment is preferred by most authors, so do we.

Anti-Bacterial Agents↗