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Biomedical subjects

A Quaranta

Publications and source records attributed to A Quaranta.

53 records · Page 3Linked to original sources
PubMedDate not supplied

Cholesteatoma in children: histopathologic findings in middle ear ossicles.

Middle ear ossicles removed during ear surgery in 40 patients were examined in order to compare the histopathologic changes in children with those observed in adults. Bone resorption, mainly localized at the level of the periosteum and haversian canals in adults, was much more extensive in children. Replacement of bone by fibrous granulation tissue was observed in 60% of children's ossicles and in 27% of those belonging to adults. In children, extensive active resorptive osteitis of the ossicles was frequently associated with intensive round cell infiltration, which seems to play an important role in bone absorption and in the aggressiveness of cholesteatoma.

Adolescent↗
PubMedDate not supplied

[Facial nerve paralysis and mandibular fracture].

The authors describe three cases of peripheral facial nerve paralysis in patients with a mandibular fracture. In two cases, in which the onset of palsy was uncertain, the facial nerve injury was contralateral to the fractured side. Topodiagnostic tests showed neural damage at the third intrapetrosal portion and at the genicular ganglion. In one of the two patients tomography revealed a fracture line through the anterio-superior wall of the external auditory canal homolateral to the facial palsy. In the third subject palsy set in immediately after the trauma and was ipsilateral to the mandibular fracture; the facial lesion was localized at the genicular ganglion. In the first two cases, functional recovery was spontaneous (40 and 0 days after the trauma respectively). In the third subject, the nerve was decompressed surgically with a complete functional recovery two months later. The functional and clinical findings of these three cases show that a contralateral facial palsy secondary to a mandibular fracture resolves spontaneously while the traumatic displacement of the mandibular condyle may determine a temporal bone fracture sometimes followed by a lesion in the intratemporal portion of the facial nerve. An event such as the latter may delay functional recovery and thus warrant surgery such as in cases of Bell's palsy.

Accidental Falls↗
PubMedDate not supplied

[Epidemiological study of dental caries incidence in a group of 10-year old children in USSL 13, Veneto region].

The Authors, after a study in depth of the incidence of the caries in a ten years old population, following the advices of the HWO, describe on their territory an occurrence of the caries desease similar to the value referred on other works of research published in the same Region, in any case not so far from these pointed by the HWO for the year 2000. But there is still much to do in the prevention and therapy.

Child↗
PubMedDate not supplied

[Epidemiological study of gingivitis incidence in relation to hygiene habits in a group of 10-year old children in USSL 13, Veneto region].

The Authors, after an attentive study about a population of 799 ten years old scholarboys, have found out the hygiene of the mouth is a problem thoroughly felt, but the quality isn't the quantity. Therefore we need a wider prevention, using the informations and education in the scholar and familiar world, and not only in the specialistic environment.

Child↗
PubMedDate not supplied

[Remote masking as a test of cochlear conductive hearing losses (author's transl)].

The authors studied the remote masking (RM) in patients with Menière's disorder during the hearing loss fluctuations produced either by the disorder or by the glycerol test (Klockhoff). The RM was recorded for pulsed tones of 250, 500 and 1 000 Hz; the masker was a continuous narrow-band noise centered at 3 000 Hz, with 305 Hz (2 875-3 180 Hz) bandwidth, delivered at an overall level of 98 dB SPL. The results showed that the RM decreases during the acute phase, i.e. when the hearing loss increases, and, increases if the glycerol tests do not significantly modify the RM value. They seem to confirm the hypothesis that the RM may be due to a mechanical effect in the internal ear and suggest the possibility of using the RM as a test of end-organ rigidity.

Audiometry↗