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Biomedical subjects

C Remy

Publications and source records attributed to C Remy.

At least 55 records · Page 3Linked to original sources
PubMed1987

[Quantified surgery of esotropia].

The effects of surgery on the minimal angle were studied on sixty children, strabismic in visual isoacuity, equipped with their optical correction, with a follow up of six months. The surgical procedures, medial rectus recession and lateral rectus flecting, were carried out under an operating microscope. No Faden Operation was carried out. A constant K is defined for each operation as the quotient of the angular reduction dA0 by the sum in millimeters of the movement on the medial rectus DI and the lateral rectus DE divided by two, or K = dA0/(DI + DE/2). The clinical, statistical and surgical incertitudes are analysed. The concomitant surgery, eye by eye, thus demonstrated, allows a better modulation of the surgical gesture as the action on the lateral rectus tempers that of the medial rectus.

Child↗
PubMed1984

Analysis of brain metabolism changes induced by acute potassium cyanide intoxication by 31P NMR in vivo using chronically implanted surface coils.

Chronic implantation of surface coils on the skull has been developed to record 31P NMR spectra of the brain in unanesthetized rats. Intraperitoneal sublethal potassium cyanide doses induce strong and reversible changes in high-energy phosphate compounds in the brain, similar in part to those induced by ischemia. These effects are dose-dependent as far as phosphocreatine, inorganic orthophosphates and pH are concerned; ATP does not seem to be altered by KCN doses ranging from 3 to 5 mg/kg but starts decreasing at a dose of 6 mg/kg. The fraction of Mg2+ complexed ATP which could be estimated as about 90% was not affected by KCN intoxication. For high doses (6 mg/kg) a new peak, appearing on the upfield side of the inorganic phosphate peak, may correspond to an acidic compartment, the significance of which is discussed.

Adenosine Triphosphate↗
PubMed1984

[Attempt to identify a syndrome threatening status epilepticus in chronic epileptics in an institution].

The analysis of the frequency and the clinical symptoms of closely succeeding seizures in a population of chronic epileptic patients living in institutions reveals two major groups: serial seizures and status epilepticus. The latter occur more frequently in a 'high risk population' and are often heralded by a 'threatening symptom complex.' These notions are debated, and a therapeutic policy is suggested.

Adult↗
PubMed1984

[History of strabismus surgery].

The history of strabismus surgery starts from the end of the eighteenth century. The first surgical trials consisted of performing myotomies of the medial rectus. Although Taylor from Great Britain could be one of the first to be mentioned, it was Dieffenbach from Germany who accomplished the first official myotomy in 1839. He is followed by many authors as Roux, Velpeau in Paris, and Bonnet in Lyon, the latter performing tenotomy instead of myotomy. In 1849 Guerin performed muscular advancement. In 1883, de Wecker described the muscular pleating, and Blascowiczs the muscular resection. Thus, by the end of the nineteenth century, the surgical treatment of esodeviations was supported by methods aimed to weaken the medial rectus (tenotomies, myotomies) and to strengthen the lateral rectus (advancement, pleating and resection). During twentieth century, progress achieved in anesthesiology and the quality of suture material led Jameson (1922) to substitute tenotomy by muscular recession. Since then, the surgery of squint has never been modified basically up to 1970 when Cuppers created the retro-equatorial myopexy. Thus, two kinds of surgical technics are currently available to surgeons: classic surgery, recession, resection and their variants, dealing with the static component of the deviation angle, and the Faden Operation of Cuppers struggling against the dynamic or innervational component.

Adult↗
PubMed1983

Effect of sodium benzoate on the cutaneous bilirubin content of the adult Gunn rat.

Na benzoate, which dissociates intravascular bilirubin-albumin complexes, might thus have the potential for driving bilirubin from the plasma into tissues such as the skin. We investigated this hypothesis in the adult Gunn rat. As others, we observed an early fall in blood bilirubin concentration after intraperitoneal Na benzoate injection, without any change in skin bilirubin content. Nevertheless, we observed a significant decrease (p less than 0.01) in skin bilirubin content at 24 and then 48 h after Na benzoate injection, at which times blood bilirubin remained at a low level. The phenomenon was reversible since, at 8 days after Na benzoate injection, blood and skin bilirubin contents had returned to control values. Regarding the decrease in skin bilirubin content after Na benzoate injection we described a dose-effect relationship. So, we could not confirm our hypothesis. We concluded that the phenomenon we observed is probably due to a shift in the distribution equilibrium of the pigment between serum, skin and other tissues.

Animals↗
PubMed1982

[Retinal detachment and retraction. Effect of steroidal and nonsteroidal anti-inflammatory agents on the autoimmune reaction against the retina in idiopathic retinal detachment with signs of retraction].

The leukocyte adherence was employed to detect patients with auto-immunity against the retina, in three series of retinal detachments associated with peripheral vitreo-retinal retraction. The first serie of 14 patients received no medical treatment; the second serie of 19 patients was submitted an antiprostaglandins drug (tiaprofenic acid); the third serie of 16 patients received systemic corticoids. The leukocyte adherence test was performed before surgery and 10 days after surgery in all patients. It showed that auto-immunity against the retina after surgery was half as frequent in those patients submitted to anti-inflammatory drugs than in those patients who received no medical treatment. Moreover, the results of the present study suggest that: 1) Auto-immunity against the retina after surgery is twice as frequent in retinal detachments with associated massive vitreo-retinal retraction than in those which are surgical successes with good visual results (no macular pucker). 2) Auto-immunity against the retina 10 days after surgery is more frequent in those retinal detachments needing more than 20 cryo-applications than in those needing less than 20 cryo-applications.

Adolescent↗
PubMed1981

[Frequency and semeiological evolution of epileptic seizures occurring between 40 and 65 years of age (author's transl)].

458 patients who had their first epileptic fit between the ages of 40 and 65 are classified into 5 groups according to the seizure symptomatology: when the symptomatology remains unchanged, the frequency of fits is less than 1 per month in 84% of generalized fits and more than 1 per month in 52% of focal fits. When the symptomatology changes, the frequency of fits is less than 1 per month when the inaugural fit is generalized (23 out of 27) and more than 1 per month when the inaugural fit is focal (15 out of 21). Modifications of the symptomatology correlate positively with a prevalence of tumor aetiology. Primary generalized epilepsies are rare (4.4%). Non-specific secondary generalized epilepsies (including vascular, metabolic or toxic encephalopathies) account for 24.4% of the cases. Focal epilepsies are the most common form (40.7%), elementary fits being four times more frequent than complex fits.

Adult↗
PubMed1981

[Autoimmunity against the retina in idiopathic retinal detachment. Study of 50 cases].

Auto-immunity against the retina was studied on fifty patients suffering from retinal detachment. The results of the present study confirm the development of auto-immunity against the retina in long standing retinal detachments, which has already been demonstrated by other authors. In addition, the present study shows a significant correlation between the development of auto-immunity against the retina and the surgical treatment on one hand, and evidence of epiretinal proliferation and retraction on the other hand. It is suggested that auto-immunity against the retina may be the result of endocular inflammation which may be one of the causes of epiretinal proliferation and retraction.

Adolescent↗