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Biomedical subjects

N Segal

Publications and source records attributed to N Segal.

At least 55 records · Page 3Linked to original sources
PubMedDate not supplied

[The geographic environment--a risk factor in eyelid tumors?].

The paper shows the role of the geographical environment in the incidence of various ophthalmological diseases and tries to make connections between different factors of pollution and the appearance of cancer, using epidemiological data. In Bihor district, the analysis of ocular tumors during a 25 years period shows 34 cases of malignant melanoma, 6 cases of glioma, 14 epibulbar malignant tumors opposing to 487 palpebral tumors, 3 tumors of the lacrimal sac and 8 cases of trichoepithelioma. Histopathologically, 173 of them were spinal cell epithelioma, 210 were basal cell epithelioma, 48 were sudoriferous, 40 were non-differentiated and 16 16 were mixed forms. The authors propose the district distributed study of the morbidity of various ocular diseases, which lead to the achievement of an ophthalmo-geography.

Age Factors↗
PubMedDate not supplied

[Obesity as a risk factor in diabetic retinopathy].

The relations between the glucidic and lipidic metabolism fatness and diabetes are known for a long time. The fatness as a factor of risk for the diabetic retinopathy and consecutively for the appearance of the cecity have less been studied. There are studied the variations of lipids, cholesterol, the fatness (for 3 degrees by Broca) for a group of diabetic patients, type I or II, the age of the patients (between 18-80 years old) there are presented the retinal modifying: arterial, venous, microaneurysm, haemorrhages, the macular modifying. In comparison to the normoponderal diabetic patients, for these who are fat patients especially I or II degree, all the modifying are exaggerated. There was chosen the fatness from the lots of the factors of diabetes'risk, because I think it may be influenced. The treatments of retinopathy are few and less encourage. The doxium and the photocoagulation could eventually make the cecity to be late but they belong to the group of treatment, but it is not a prophylactic element for cecity. The real prophylaxis has to begin since the childhood with a normocaloric food diet. The prophylaxis of the diabetes is the true prophylaxis of the cecity.

Diabetes Complications↗
PubMedDate not supplied

[Hyphema, a risk factor in the glaucomatous eye].

A hemorrhage in the anterior chamber is a frequent phenomenon, very often treated too easily. Our investigation followed for 3 years (1985-1987) the way in which hyphema were resorbed after the eye contusions in the patients operated by cataract or glaucoma. The causes of hyphemas, their onset, the aspect of the blood and the resorption period are analyzed. The majority of hyphemas were resorbed in the first 7 days (in the case of contusions 87%, after operation of cataract 84%) but in the glaucomatous patients the resorption in the first 7 days appeared only in 50% of the cases; the blood remained in the anterior chamber in 12.5% of cases even after 21 days. The blood in the anterior chamber is resorbed by the excretory ducts, mainly as intact erythrocytes; in the glaucomatous patients the ducts are altered and the erythrocytes are more difficulty eliminated. The liquid in the anterior chamber is eliminated by the fistulization opening, but the erythrocytes do not pass as they cannot be resorbed in the subconjunctival space. The blood in the anterior chamber of an eye with ocular hypertension (decompensated glaucoma or contusions with hypertension) favours the hematic impregnation of the cornea, and the macrophages loaded with hemosiderin are deposited at the level of the excretory ducts, thus increasing the danger of hemolytic secondary glaucoma.(ABSTRACT TRUNCATED AT 250 WORDS)

Cataract↗
PubMedDate not supplied

[Is it possible to give genetic counseling in pigmentary retinopathy?].

The author tries to change the opinion still prevailing today according to which any pigmentary retinopathy may represent a handicap to the descendants. Pigmentary retinopathy may have several etiologies--hereditary, sex-linked, dominant autosomal or recessive autosomal, metabolic, within the framework of various mucopolysaccharidoses, secondary post inflammatory or post traumatic. Hereditary transmission is discussed recalling for isolated cases the empirical calculus of H. Maumenee on 1000 Swiss families. Genetic advice, the same as other medical prognosis must form integral part of clinical medical practice. Genetic advice must be based on perfect knowledge of the patient and his family, yet the final decision remains with the family.

Adult↗