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Biomedical subjects

F Cavalleri

Publications and source records attributed to F Cavalleri.

5 recordsLinked to original sources
PubMed1996

Imitation and utilisation behaviour.

OBJECTIVE: To investigate the incidence, anatomical correlates, and clinical features of imitation and utilisation behaviour, which are thought by Lhermitte and coworkers to represent a reliable and frequent index of frontal lobe disease. METHODS: 78 patients with hemispheric local lesions were tested in two separate sessions, in which their reactions to a series of gestures performed by the examiner and to the presentation of a set of objects were recorded. The patients were stratified into a frontal (n = 52) and a non-frontal group (n = 26) on the basis of their CT data. RESULTS AND CONCLUSIONS: Imitation behaviour was present in 39% of the frontal patients and was mainly associated with medial and lateral lesions, at odds with the claim of Lhermitte et al that it is a constant accompaniment of lower, mediobasal lesions. In the non-frontal group it was found in three patients, all with damage to the deep nuclei region. Utilisation behaviour was a much rarer phenomenon, present in only two patients, both of whom had frontal damage. Neither imitation behaviour nor utilisation behaviour were found in patients with retrorolandic cortical lesions.

Female↗
PubMed1995

Peripheral neuropathy in styrene-exposed workers.

BACKGROUND: The toxicity of styrene on the peripheral nervous system is still debated. CASES: The paper presents two cases of peripheral sensorimotor neuropathy in styrene-exposed workers. Exposure, evaluated by biological monitoring, ranged between 100 and 150% of the current limits proposed by the American Conference of Governmental Industrial Hygienists (ACGIH). The subjects complained of leg weakness and numbness, cramps, and paresthesia. Electrophysiology revealed a moderate peripheral sensorimotor neuropathy of a demyelinating type. Color-vision testing showed a subclinical deficit. Common inherited and acquired causes of peripheral neuropathy and dyschromatopsia other than styrene were ruled out by personal history, medical examination, laboratory data, and chest X-ray. CONCLUSIONS: The results suggest that long-term occupational exposure to environmental levels of styrene that are equal, or slightly above, the ACGIH limits can induce a clinical form of peripheral neuropathy and a subclinical impairment of color vision. As a consequence, a careful reappraisal of the real preventive meaning of the current ACGIH occupational limit for styrene, at least on an individual basis, is needed.

Adult↗
PubMed1994

Amyotrophic lateral sclerosis with dementia.

Four patients with amyotrophic lateral sclerosis (ALS) and dementia are reported. Mental symptoms antedated motor signs and were investigated with a neuropsychology battery, which brought out different patterns of cognitive impairment. A case presented with frontal dementia, another with a predominant aphasic, apraxic, amnesic syndrome, while the remainders showed cognitive decline in association with blunt affect. Motor signs were characterized by a precocious involvement of the upper motor system.

Amyotrophic Lateral Sclerosis↗
PubMedDate not supplied

[Clinical evaluation of a posterior photopolymerizing composite: results 4 years after application].

The aim of this study was to examine clinical results of class I and class II composite restorations of forty two posterior teeth, considering pulpal vitality, dentinal sensitivity, marginal integrity, contact areas, color, gingival irritation and secondary decay. The restorations were evaluated over a four-year period. The results are considered satisfactory both from a chemical-physical and biological point of view. The Authors wish to outline the importance to improve the operative technique to minimize the disadvantages of these materials and to obtain better results. The Authors propose to carry out a later control to confirm these results.

Adolescent↗