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Biomedical subjects

P Bec

Publications and source records attributed to P Bec.

At least 73 records · Page 4Linked to original sources
PubMed1981

[Possible vascular factor in idiopathic detachment of the retina (author's transl)].

The possible influence of a vascular factor in idiopathic detachment of the retina was studied by comparing the frequency of hypertension and hyperlipidemia in groups of myopic and non-myopic subjects within the age group 50 to 65 years. Hypertension was present in 37.1 p. cent and hyperlipidemia in 60 p. cent of the non-myopic subjects, against 9.7 p. cent and 33.33 p. cent respectively in the myopic subjects. These results, together with the fact that there was a later age of onset in the non-myopic group, suggest that a vascular factor could be of etiological significance in idiopathic detachment of the retina in non-myopic subjects.

Adult↗
PubMed1979

[Evaluation of the hypothalamo-hypophyseal-thyroid axis by means of TRH in patients with chronic open-angle glaucoma].

The diencephalo-hypophyseal axis was studied in a group of patients with chronic open-angle glaucoma by means of TRH. Nearly half of the patients studied presented with hypothalamo-hypophyseal dysfunctions. TRH increases the outflow coefficient in these patients but this increase seems to be due to a pharmacodynamic action inherent in the product, and appears prior to the release of thyroid hormone.

Chronic Disease↗
PubMed1979

[Renewed peripheral sub-retinal vascularization and its pathological consequences (author's transl)].

The existence of renewed peripheral sub-retinal vascularization has been known for some time, but it has not attracted the attention that it merits. It possesses similar features to that of renewed sub-retinal vascularization of the posterior pole, and the consequences of this condition are well known. Two clinical cases are reported in which clinical and angiographic investigations demonstrated this type of alteration. Histological examinations showed its continuity with the choriocapillary. It is possible, though still not conclusively demonstrated, that renewed peripheral sub-retinal vascularization plays an important role in peripheral retinal diseases such as serohemorrhagic detachments of the peripheral retinal degenerations.

Adult↗
PubMed1979

[Uveal effusion--microphthalmos--severe hypermetropia].

Report of a case of uveal effusion with nanophtalmus and hypermetropia in a 40-year-old woman. This case is similar to those described in the literature as uveal effusion and nanophthalmus. It shows that the syndrome may be unilateral and not accompanied by glaucoma. The most characteristic traits of the syndrome are thickening of the sclera and peripheral retinal vascular anomalies. The syndrome seems to be secondary to a lesion of the vorticose system and to poor circulation conditions in the intrascleral part of this system.

Adult↗
PubMed1978

[The frequency of alterations of the lipid and hydrocarbon levels in retinal detachment].

The biological lipid levels and hyperglycaemia measured in patients of varying ages with retinal detachment have shown that:--in 59.7% there is a hyperlipaemia or hyperlipoproteinaemia. This is more usually a hyperpre-beta-lipoproteinaemia (37.1%);--in 32% a disturbance of lipid metabolism was associated with a disturbance of glucose metabolism: diabetes or a pre-diabetic state;--49% of patients affected with hyperlipidaemia present with a clinical vascular condition;--42% of all the patients present with a clinical vascular condition. The numbers are considerable and they show the frequency of atherogenic factors in retinal detachment.

Adult↗