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Biomedical subjects

Y Lazorthes

Publications and source records attributed to Y Lazorthes.

At least 91 records · Page 5Linked to original sources
PubMed1979

[Percutaneous thermocoagulation of sacral roots (author's transl)].

Following spinal cord lesions, signs of spasticity may be observed on bladder with decreased capacity and urinary leaks. We have attempted to associate the inocuity of anesthetic blocks and the selective precision of microsurgical rhizotomies by percutaneous thermocoagulation of sacral roots. Bilateral 53 root coagulation, under Rx control, vesical pressure monitoring and stimulation tests, is ususally efficient. Authors report the technic and the results of this simple method about the first nine cases with more than one year of follow up.

Adolescent↗
PubMed1978

[Anterior and posterior medullary analgesic stimulation, using a percutaneous implantation technic].

The technique of percutaneous implantation of a pain-relieving stimulator reduces the surgical procedure considerably. This advantage is, however, lessened by the absence of precision in placing epidural electrodes, and by the risk of their later displacement leading to inadequate stimulation. To reduce this disadvantage the authors suggest a technique that is a modification of the classical open procedure: it is particularly suitable for implantation at the cervico-dorsal junction. In 12 patients treated by percutaneous implantation, 5 received, from epidural electrodes, an anterior medullary electrical stimulation which caused analgesia without paraesthesiae in the painful ares. The results, however, do not justify a conclusion that anterior medullary stimulation is better than posterior column stimulation.

Adult↗
PubMed1978

[Pseudo-tumoral softening of the cerebellum].

The author establish an onerall picture of cerebellar infarction with brain stem compression after reviewing 63 cases published in the literature and 4 personal observations. The frequency of this affection can be compared with that of cerebellar hematomas. Diagnosis is based on its predominance in males, the early age at which it appears, its rapid and typical onset, and the delayed signs of brain stem compression. Conventional neuroradiological procedures show an expanded cerebellar volume, and the scanner can specify the ischaemic nature of the lesion. As soon as changes in consciousness occur surgical decompression is necessary, first by external drainage of C.S.F. and later, if necessary, by direct access to the postdrior fossa.

Adult↗
PubMed1977

[Long term results of electric stimulation of the conus medullaris in a case of neurogenic bladder].

The authors present long term results (19 to 45 months: Average 37 months) of electrical stimulation of the conus medullaris in neurologic bladder. In 3 cases, the result remain excellent: efficient stimulation, normal micturition, absence of residual urine. In 6 cases, after a long period of normal function, the micturition is poor with residual urine, eventhough the conus medullaris stimulation always produces a satisfactory contraction of the detrusor. In four cases the relapse is due to disease of the external sphincter region, poorly or untreated. In female patients the results are better than in male patients, with positive results in 2 of the 3 women and 1 of the 6 men. The authors find that their results can be compared with those of B. NASCHOLD, originator of the method. They emphasize the necessity of a close collaboration with the urologist to maintain excellent results.

Adolescent↗
PubMed1976

[Involvement or non-involvement of intracranial pressure with arterial pressure].

In this experiment carried out on dogs, the authors demonstrate with the aid of very expressive illustrations that rapid variations in arterial pressure are accompanied by variations of the intracranial pressure. The latter may be, depending on the case, either in the same direction or inverse, according to the local cerebral vasomotor response accompanying the systemic arterial hypertension.

Anesthesia, Inhalation↗
PubMed1976

[Note on the comparative effects of benzodiazepines and chlorpromazine on intracranial pressure in the dog].

The neutrality of the butyrophenones on intracranial pressure has been relatively well shown. That of the phenothiazines and benzodiazepine derivatives has been less well established. The authors studied, by a continuous method, the action of chlorpromazine, acepromazine and three benzodiazepines (diazepam, flunitrazepam and chlorazepam) on intracranial pressure and blood pressure in the dog. These substances seem to be definitely neutral on intracranial pressure, more so in the case of the benzodiazepines than for the promazines, the vasomotor action of which was perceptible when seen closely. The authors produce demonstrative graphs, illustrating the correlation of these two pressures.

Animals↗
PubMed1975

[The surgical approach to spontaneous intracerebral hematomas (author's transl)].

Following a recent statistical survey of 56 cases over a period of 3 years the authors considered the choice between the frontal or the parieto-temporal approaches to intracerebral haematomas. From their anatomical studies they considered that the frontal route is the better for approach to haematomas of the external capsule, whereas the parieto-temporal approach is preferred for haematomas of the internal capsule.

Cerebral Hemorrhage↗