Search PubMed⌕ Search

Biomedical subjects

F Renault

Publications and source records attributed to F Renault.

At least 55 records · Page 3Linked to original sources
PubMed1986

[Facial asymmetry, asymmetry of muscle tonus and unilateral amblyopia].

The authors noted the high prevalence of facial asymmetry and of unilateral amblyopia in some hundred children suffering from chronic neurological conditions. Unilateral changes in muscle tone are responsible for such asymmetry. Amblyopia in itself may cause a facial asymmetry. The dental arcades are little affected even by severe deformities of their underlying bony supports. Dento-maxillary abnormalities are no more severe in these children than in a normal population.

Adolescent↗
PubMed1986

[Pigmentary retinopathy of neonates and infants. Their examination using electroretinography and visual evoked potentials].

A method of neurophysiological investigation (electroretinography and visual evoked potentials) is described as a non invasive exploration used in awake children. E.R.G. and V.E.P. normal patterns are described in relation to age. The data obtained in pigmentary retinopathies are referred to the physiopathology of these diseases. Usefulness of both neurophysiological tests is showed in the early diagnosis. Significative abnormalities are seen even before any detectable ophthalmoscopic symptom. In pigmentary retinopathies, V.E.P. are normal while E.R.G. is slightly then severely altered. E.R.G. and V.E.P. are also helpful in the differential diagnosis: in macular diseases, E.R.G. is usually normal while V.E.P. are altered. Repeated examinations have a prognostical value: when a disease is progressing, E.R.G. becomes more and more altered and V.E.P.'s abnormalities appear.

Electroretinography↗
PubMed1985

[Hurst-type acute leukoencephalitis with complete recovery in a child].

A case of acute haemorrhagic leukoencephalitis in an 11-year old girl demonstrates the usefulness of computerized tomography which shows large, asymmetric hypodense areas in the white matter and diffuse oedema. The causative role of a Mycoplasma pneumoniae infection is suggested by positive serology and by a high level of cold anti-l agglutinins. Treatment with corticosteroids in massive doses combined with a tetracycline resulted in complete cure without sequelae.

Acute Disease↗
PubMed1984

[Place of VEP's and ERG in neonatal encephalopathies and impaired visual maturation in the infant and young child].

Visual evoked potentials (VEPs) induced by brief flashes and electroretinograms (ERGs) were recorded in 15 infants (9 prematures and 6 babies with perinatal cerebral injuries) suffering from important disturbances in their visual behavior (abnormal fixation, cortical blindness). The parallel evolution of the visual symptoms and the electrophysiological signs were studied and a good correlation was observed between these clinical and electrical signs. The authors insist on the clinical and prognostic value of the VEP in this category of infants.

Blindness↗
PubMed1983

[17p trisomy].

Trisomy 17p resulting from a parental translocation t(10;17)(q26.3;p11) was observed in a 22-month-old boy. Analysis of five cases of trisomy 17p from the literature indicates a common malformation pattern: microcephaly, excessive development of the median part of the frontal region, mandibular hypoplasia, permanent opening of the mouth, a high-arched palate, a short, webbed neck, hypotonia, growth retardation, and severe mental retardation. Three abnormal features emphasized by the authors are permanent myosis due to a structural anomaly of the iris; an unusually low blood folate concentration; and an unusual hand configuration, the first four fingers flexed and the little finger extended.

Abnormalities, Multiple↗
PubMed1983

[Electromyographic study of 50 cases of Werdnig-Hoffmann disease].

An electromyographic study was performed in 50 cases of severe infantile spinal muscular atrophy (type I). 164 muscles and 93 nerves (ulnar and posterior tibialis) were tested. The thresholds of stimulation of the motor nerves were increased. Motor action potential was absent in 30% of the investigated nerves, motor nerve conduction velocity was slow in 44%, H reflex was absent in 86%. Proprioceptive nerve conduction velocity was slow in some cases. Using the long-time (50-100 msec) direct longitudinal technique of muscle stimulation (provoked fibrillation), denervation could be proved in 98% of cases. The authors emphasize diagnostical difficulties in the first days of life.

Electromyography↗
PubMed1983

[Technic and results of electromyographic exploration of the diaphragm in the infant and young child].

Electromyographic study of the diaphragma cannot be separated from the exploration of the nervi phrenici. The left nervus phrenicus is longer than the right. Both divide into 3 terminal branches that innervate the 3 main muscular areas. A different recording technique is used for each muscular area: thoracic surface electrodes for the cupulae, oesophageal probe electrodes for the crura diaphragmatis, and needle electrodes for the pars sternalis. Voluntary activity, recorded only during inspiration, is of limited use in pediatrics. The various parameters of the response to stimulation of the nervi phrenici, which are described here, are more interesting. In particular the latency period for each muscular area as a function of age is examined in detail to give an impression of the nerve conductivity.

Child↗
PubMed1983

[Acute pseudotumoral demyelination with regressive attacks].

A 14 year-old boy presented, at a 3 month interval, with 2 episodes of hemiplegia of rapid onset. The first time, CT scan revealed a large parietal "tumor", shown to be pseudocystic at surgery, and histologically proven as a demyelinating disease. During the second attack, CT scan showed a similar but contralateral lesion, regressing completely under steroid treatment. 40 months after the onset of the disease, the child's life and intelligence are normal.

Acute Disease↗
PubMed1982

[Congenital candidiasis of the skin (author's transl)].

A typical case of congenital candidiasis of the skin is reported. In these babies the eruption, already widespread at birth, is initially macular to become papulo-pustular, then dries up with desquamation of the skin. The finding of Candida albicans in the amniotic fluid and in placental smears confirms that the infection was present before birth. The condition regresses after local treatment and oral nystatin, but the need for parenteral treatment is controverted.

Candidiasis↗
PubMed1982

[Pseudohypoaldosteronism: familial forms. Eight case-reports, with a review of the literature (author's transl)].

Pseudohypoaldosteronism (PHA) is an uncommon cause of the renal salt loosing syndrome in infancy. The authors describe eight cases in two different families. Hyperaldosteronism persists long after clinical recovery has occurred. Plasma hormone assay allows retrospective recognition of cases overlooked during infancy. This underlines the variability of disease expression among different members of the same family. The high family occurrence rate (over 50%), which is often underestimated, is demonstrated by the study of both families and by a review of published cases. Clinical and biochemical features of familial PHA are discussed. Inheritance is usually on an autosomal dominant basis. However, the small number of reported cases cannot allow any attempt to individualize subgroups of the disorder upon genetic grounds.

Adult↗
PubMed1982

[Electromyography in children with polymyositis (author's transl)].

Findings of repeat electromyography (EMG) in 15 children with polymyositis or dermatomyositis are reported. The data classically provided by EMG in these conditions is recalled. Emphasis is put on the contribution of stimulodetection to the diagnosis of primary disease of the muscle. With this procedure, EMG showed myogenic signs in all patients, at the first examination. Electrical anomalies are widespread from the start. A long-term study in 12 patients shows that electrical anomalies remain present long after clinical recovery. EMG disturbances are the last anomalies to disappear. EMG returns to normal when recovery is longstanding. EMG signs reappear if relapse occurs.

Adolescent↗
PubMed1982

[Larsen's syndrome. Clinical findings and inheritance (author's transl)].

Three new case reports of Larsen's syndrome (multiple congenital dislocations of the joints, distinctive facies and skeletal abnormalities) are presented. For the first time this condition is described to be associated with deafness and retinal dysplasia. Data in the literature show this syndrome to be inherited as sporadic, autosomal recessive or dominant. The 3 reported cases seem to have and autosomal recessive inheritance.

Abnormalities, Multiple↗