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Biomedical subjects

M F Olivieri

Publications and source records attributed to M F Olivieri.

6 recordsLinked to original sources
PubMed1986

Clinical-electrophysiological correlations in the carpal tunnel syndrome.

56 patients with carpal tunnel syndrome (CTS) with 84 hands affected were investigated. All patients were assessed clinically and electromyographically in order to find out whether there is a correlation between clinical signs and/or symptoms and the EMG data. A highly significant correlation was found between sensory deficit (hypoesthesia to touch and/or pain) and the amplitude of SAP and a significant correlation between motor deficits (weakness and/or atrophy) and distal motor latency.

Carpal Tunnel Syndrome↗
PubMed1985

Hypercalcemic encephalopathy in the course of hyperthyroidism.

A hypercalcemic condition can be observed in association with hyperthyroidism. The case of a patient suffering from hypercalcemia and hyperthyroidism is reported. A confusional state and EEG alterations, among which diffuse monomorphic delta rhythms were remarkable, are shown. As soon as normalization of calcemia was achieved, a rapid clinical and EEG improvement took place. A hypothetical interpretation is proposed, according to which a prolonged, though inconstant, and mild hypercalcemia in the course of hyperthyroidism could determine an encephalopathy, concealing in some way thyrotoxic symptoms.

Brain Diseases↗
PubMed1983

Upper visual space neglect and motor deficits after section of the midbrain commissures in the cat.

The neurological deficits following section of the midbrain commissures were studied in the cat. After a lesion of the commissures between the superior and inferior colliculi, with or without involvement of the posterior commissure, the animals showed a long lasting inattention for stimuli in the upper visual space, lack of exploratory head movements towards the neglected space, head ventroflexion and vertical paralysis of gaze. After a lesion of the commissure between the superior colliculi or of its rostral part only, the same symptomatology appeared, but it was short lasting. After a lesion of the posterior commissure, the head was kept dorsiflexed, the exploratory head movements towards the lower visual space were reduced and the stimuli presented in this space were often neglected. There was a paralysis of vertical eye movements. The findings are discussed in the frame of a premotor theory of neglect.

Animals↗
PubMed1981

[Neurological deficits after section of the intertectal commissure in the cat].

The effects of cutting the intertectal commissure have been studied in three cats. After the operation all animals tended to look downwards, as if attracted by the ground. There was no paralysis of the head movements. However spontaneous vertical head movements necessary for exploring the space in front and especially above the animal were very rare. Visual field examination showed a clear neglect for stimuli presented in the upper hemifields. The intertectal commissure syndrome is interpreted as a consequence of a disruption of intertectal nervous circuits responsible for the exploration of the portion of the space above the animal's head.

Animals↗