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Biomedical subjects

F Viader

Publications and source records attributed to F Viader.

46 records · Page 3Linked to original sources
PubMed1984

[Spontaneous epidural hematoma in panarteritis nodosa].

Four years after the first sign of panarteritis nodosa, a 60 years old woman presented severe pain in the lower thoracic spine followed by motor, sensory and sphincter paralysis. With corticosteroid therapy, condition improved 24 hours later, but myelography revealed an incomplete block from T9 to L1, by an epidural hemorrhage. In the course of panarteritis nodosa, one case of epidural hemorrhage, and a few cases of subarachnoid hemorrhage of the spinal canal have been described.

Female↗
PubMed1984

[Cerebral infarction in the area of the anterior choroidal artery with oculomotor disorder].

A 84-year-old diabetic man had a complete right-sided hemiplegia with ipsilateral hypoesthesia and vertical diplopia, but no aphasia or hemianopia. The CT scan showed a low-density area in the posterior limb of the left internal capsule, in the territory of the anterior choroidal artery. The mechanism of diplopia is discussed and is attributed to the involvement of the mesencephalic territory of the anterior choroidal artery.

Aged↗
PubMed1983

[Periodic laryngeal dyspnea in bi-opercular syndrome].

Periodic bouts of laryngeal dyspnea in a 77-year-old man were observed early in the course of a syndrome due to bilateral opercular infarcts. Laryngoscopy showed alternate slow opening and closure of the glottis superimposed on respiratory vocal cord movements. The disorder could result from bilateral removal of cortical control of bulbar centers, its periodicity suggesting analogies with Cheyne-Stokes' dyspnea.

Aged↗
PubMed1982

[Left motor extinction due to an ischemic lesion of the anterior limb of the internal capsule (author's transl)].

An ischemic lesion limited to the anterior limb of the internal capsule provoked a left motor neglect in a 64-year-old man. There was reduction in spontaneous mobility of the left side of the body, reversible during verbal incitations and accompanied by motor extinction. There were no perceptive disorders, or visual, somatesthetic, or auditive neglect. The importance of the motor extinction phenomenon (described by Valenstein and Heilman in a case with a lesion of similar site) is emphasized: it demonstrates the role in motor neglect of a disequilibrium in intentional activation of the hemispheres. Pathological and clinical correlations are discussed in relation to cases reported in the literature and the results of animal studies. It is suggested that motor neglect may result from interruption of connections between the median thalamic nuclei, the striatum, and the frontal cortex. Relationships between motor neglect and perceptive (attentional) neglect syndromes are discussed.

Brain Ischemia↗
PubMed1980

[Visual agnosia without right hemianopia in a right-handed patient (author's transl)].

A right-handed 77-year-old man presented with a left homonymous lateral hemianopsia involving the macula. Consciousness, memory, and oral language were normal, but the patient experienced great difficulties in identifying objects and images by sight, even though he recognized their geometrical shapes. He also had prosopagnosia, and alexia without agraphia but no agnosia for colours. The patient died suddenly 6 weeks after the onset of the disorders. Pathological examination demonstrated the presence of a bilateral occipital infarct involving on the right, the inferior border of the calcarine fissure, and the lingual and fusiform gyri, and on the left the fusiform gyrus. This supports the role in man of the inferior occipitotemporal convolutions in the perceptual integration of visual informations, and suggests that this region of the cortex is analogous with the inferotemporal cortex of monkeys which has been shown to be a determinant for the elaboration of visual objects.

Aged↗
PubMed1979

[The bacteriological diagnosis of pneumonia by transtracheal puncture. Value in medical intensive care (author's transl)].

Seventy five patients referred with a diagnosis of pneumonia underwent transtracheal puncture. In 76% of cases this examination led to discovery of an organism in infected patients. In 50% of cases, the bacteriological diagnosis was sufficiently accurately oriented by direct examination to permit rapid and effective treatment. There was virtually perfect agreement with the results of blood cultures when the latter were positive. The organisms most often responsible were Gram positive and above all the pneumococcus. These results led to narrow spectrum antibiotic treatment appropriate for the organism. This early treatment, based upon the results of tracheal puncture, was associated with a favourable course in 85% of cases, in particular in severely ill patients requiring intubation. No notable complications occurred.

Bacteriological Techniques↗