Biomedical subjects

J Soudant

Publications and source records attributed to J Soudant.

At least 91 records · Page 5Linked to original sources

PubMed1981

[Derived potentials and the microcomputer (author's transl)].

A method for conducting "brain stem early derived potentials" using an inexpensive microcomputer is described. This type of examination is, however, difficult to perform, and is not currently employed in clinical practice. The contribution offered by this data-processing system is emphasized.

Analog-Digital Conversion↗

PubMed1981

[Epidermoid carcinoma in a median congenital cyst of the neck : a case report and literature review (author's transl)].

Thyroglossal duct cyst, a common clinical entity, may undergo malignant change. The majority of such malignancies are capillary adenocarcinomas; squamous cell carcinomas are rare. Only 7 cases have been reported since 1950. The authors present a case of a 65 years old man who died 16 months after the tumor's discovery.

Carcinoma, Squamous Cell↗

PubMed1980

[Study of auditive evoked potentials in multiple sclerosis (author's transl)].

The Brain stem evoked response audiometry have been studied in 34 cases of multiple sclerosis. The Brainstem in 8 cases were normal and abnormal on one or both sides in the remaining 26 cases (73.5 p. 100). A Brainstem is considered suspicious of multiple sclerosis when the first wave (N1) is normal as far as the time period is concerned, although there is a loss of synchronisation of the recording particularly as far as the higher part of the brain stem (N4 and N5). In 24 cases of multiple sclerosis of definite diagnosis (according to Mac Alpine criteria) 19 cases had abnormal recordings (79.2 p. 100). In 31 cases that had a neurological test showing a lesion of the brain stem, 23 cases of evoked potentials were abnormal (74.2 p. 100). In 3 cases that clinicaly had no lesion of the brain stem, the evoked potentials were abnormal in 2 of them, suggesting the eventuality of a lesion clinicaly non-reactive which can then be of help to confirm the diagnosis.

Adult↗

PubMed1978

[Evoked brain stem potentials. Study of their adaptation in multiple sclerosis].

This study of the Brainstem evoked Response has been done to try to find the exact location of neurologic disorders. The authors wanted to see if there were differences between normal subjects and patients with multilocular sclerosis, when the auditory stimulus in increasing from 10 pps to 50 pps. From 15 normal subjects (30 ears) the results have been compared to those obtained from 6 patients. The findings were: -- there is no adaptation phenomenon in the Brainstem (the conduction time in the Brainstem is absolutely constant). -- there is an adaptation which occurs before the first peak, happening later at 50 pps than at 10 pps. -- in the multilocular sclerosis the findings were: augmentation of the peak to peak delay no synchronisation of the peaks so that is very difficult to recognize each peaks. And the peaks are easier to recognize at 50 pps than at 10 pps which fact unexpectable. This dyssynchronisation at the compression and rarefaction click is for the authors an important factor for the multilocular sclerosis diagnosis.

Adult↗

PubMed1976