Search PubMed⌕ Search

Biomedical subjects

A Rey

Publications and source records attributed to A Rey.

At least 235 records · Page 13Linked to original sources
PubMed1977

Spinal cord arteriovenous malformations and the Klippel-Trenaunay-Weber syndrome.

Five cases in which the Klippel-Trenaunay-Weber syndrome was associated with a spinal cord arteriovenous malformation are reported: they formed part of a series of 150 spinal arteriovenous malformations. Hypertrophic lesions, dilated arteries and varicose veins were present in every case, but cutaneous angiomatosis was found in only two. In each case, there was an intramedullary AVM. The relationship of the Klippel-Trenaunay-Weber syndrome to the regional angiomatous phacomatoses is discussed.

Adolescent↗
PubMed1977

[Medullary angiomas and the Klippel-Trenaunay-Weber syndrome].

5 cases of an association of Klippel-Trenaunay-Weber syndrome and of spinal cord angiomas are reported amongst a series of 150 cases of malformation of the cord. The hypertrophic element, arterial dilatations and varices were found to be constant, in constant to cutaneous angiomatosis which was found in only 2 cases. There were intraspinal angiomas in all cases. The relationship between Klippel-Trenaunay-Weber syndrome and regional angiomatous phacomatoses are discussed.

Adolescent↗
PubMed1977

[Treatment of essential facial neuralgia by selective thermocoagulation of Gasser's ganglion].

The authors report their experience in the treatment of essential facial neuralgia by differential thermocoagulation of the gasserian ganglion. This method is based upon the fact that small pain fibres (A delta and C) are more sensitive to warmth than large touch fibres. Thus progressive and controlled thermocoagulation of the trigeminal ganglion makes it possible to obtain selective destruction of the small fibres (analgesia without anaesthesia). 76 patients were treated using the method, and in 75 cases the symptoms of neuralgia disappeared immediately. Mortality is nil and morbidity insignificant other than the effects on the trigeminal nerve. The most serious complication (Approximately 10% of cases) was that of marked hypoaesthesia, rather than pure analgesia, in the coagulated area.

Adult↗
PubMed1977

[Anterior angiomas of the spinal cord and their treatment].

For a long time surgical removal of intra-medullary angiomas was considered as impossible. Accurate localization of the lesion by spinal angiography, microsurgical techniques allow to overcome this surgical challenge. 15 cases of spinal arteriovenous malformations fed by the anterior spinal artery have been operated. Criterias for surgery and post-operative results are mainly dependant upon the neurological states and the anatomical type of the malformations (type I, II, III, IV), Total removal of the malformations was performed in 12 cases with post-operative control angiography in seven instances.

Arteriovenous Malformations↗
PubMed1977

[Treatment of perforated duodenal ulcer. Reflections concerning 110 cases. (author's transl)].

Based on the analysis of 110 perforated duodenal ulcers, and the revue of the literature, the authors present the following comments: 1) The mortality in the acute phase depends mainly on the general condition of the patient; that is the reason why the Taylor's method, which is the least aggressive, is indicated in the debilitated patients, but only if it proves quickly its efficiency. In all the other cases, this method is not suitable because of its numerous early and late failures. 2) The immediate and late results of the simple suture of the ulcer are not always beneficial to the patent. 3) The good results of the elective surgical treatment of the peptic ulcer disease are also found in the patients operated on for acute perforation. The authors propose a therapeutic protocole in which the indications depend more on the general state of the patients than on the classical criteria, and in which a surgical approach to the peptic ulcer disease is emphasized.

Adolescent↗
PubMed1977

Intradural extramedullary spinal arterio-venous malformations fed by the anterior spinal artery.

There is a small group of spinal arteriovenous malformations which differ from all of the others. They receive their blood supply from the anterior spinal artery but are located outside of the spinal cord and its pia mater. Six such malformations from our series of 150 spinal arteriovenous malformations 1,4 are reported. They differ in their clinical manifestations from the others. They can be extirpated with improvement in the patient's clinical manifestations.

Adolescent↗
PubMed1976

The biosynthesis of guanidinosuccinic acid by perfused rat liver.

The metabolic pathway for the synthesis of guanidinosuccinic acid was studied in the rat. Labeled guanidinosuccinic acid was isolated from the urine of animals given L-[guanidino-14C]arginine intraperitoneally but did not appear in the urine after administration of D,L-[guanidino-14C]canavanine. Radioactive arginine and nonradioactive aspartic acid and arginine were infused in the isolated, perfused rat liver. After 20 min, small amounts of both labeled and unlabeled guanidinosuccinic acid and large amounts of urea were detected in radiochromatograms of the perfusate. These results support the theory that guanidinosuccinic acid is formed in the liver from transamidination of arginine to aspartic acid.

Animals↗
PubMed1976

[Tarsal tunnel syndrome. Apropos of 15 "pure" cases and 100 cases "combined" with leprosy or diabetes mellitus].

The authors have observed 15 cases of the tarsal canal syndrome: the 14 cases operated on showed compression of the nerve by bone fragments resulting from trauma by local varices, by a muscular anomaly, or as a result of enclosure by post-trauma fibrosis. Surgery resulted in 10 cures and considerable improvement in 2 other cases. In addition to these 15 "pure" cases the authors report their experience of neurolysis of the posterior tibial nerve and of the plantar nerves of the tarsal canal in the treatment of perforating plantar lesions in leprosy (88 cases) and diabetes (12 cases). The good results in these cases indicate the value of extending this therapy to the treatment of perforating plantar lesions in cases of large nerve neuritis.

Diabetes Complications↗
PubMed1976

Cation-exchange chromatography of guanidine derivatives in plasma of patients with chronic renal failure.

Guanidine derivatives are suspected of contributing to the toxic manifestations of uremia. We describe a method for measurement of guanidine derivatives in 5-ml samples of plasma by liquid chromatography. Concentrations of guanidinosuccinate and guanidinobutyrate in plasma were significantly increased both in undialyzed patients with chronic renal failure (5.54 +/- 0.94 and 17.5 +/- 4.07 mg/liter) and those undergoing maintenance hemodialysis (2.35 +/- 0.41 and 19.4 +/- 3.99 mg/liter) when compared to healthy controls (less than 0.4 and 1.0 +/- 0.3 mg/liter, respectively). Creatine and guanidinoacetate concentrations tended to be higher in hemodialysis patients and lower in the undialyzed group of patients with chronic renal failure. This procedure provides a rapid, sensitive, and accurate method for the study of guanidine metabolism in persons with uremia.

Arginine↗