Search PubMed⌕ Search

Biomedical subjects

M Kottow

Publications and source records attributed to M Kottow.

24 records · Page 2Linked to original sources
PubMed1975

Iris angiography in cystoid macular edema after cataract extraction.

Iris angiography was performed on eight patients (nine eyes), who had cystoid macular edema postcataract extraction. The fundus fluorescein angiographies showed typical star-shaped, multiloculated staining of the macular area. The iris angiographies demonstrated moderate to massive leakage of dye from the iris, and possibly leakage of ciliary body vessels into the anterior chamber, thus evidencing the until now suspected but undocumented fact that fluorescein leakage is not restricted to the fundus vessels. These data tend to support the idea that this type of macular edema is due to a vascular abnormality, and not to altered vitreous mechanics.

Aged↗
PubMed1975

Stagnation thrombosis: an iris fluorescein angiography study.

Two cases of central retinal venous thrombosis with gross involvement of the arterial supply to the retina are described. The iris fluorescein angiography showed massive leakage of dye into the anterior chamber. The iris angiographic findings in 48 cases of central venous thrombosis are compared with those of 19 patients with central retinal artery occlusion. In venous obstruction pupillary and extrapupillary vessels leak both in recent and in long-standing cases, whereas in arterial occlusions extrapupillary leakage occurs exclusively in recent cases. Comparatively, the 2 cases of stagnation thrombosis appear to show an exaggerated arterial type of response, and seem to form a distinct clinical entity as opposed to the basically venous insufficiency of central retinal vein thrombosis of the usual type.

Aged↗
PubMed1975

Provoked iris ischaemia in the rabbit: A fluorescien angiographic study.

We studied experimental anterior segment ischaemia in rabbits by fluorescein angiography of the iris. Nine rabbits were subjected to diathermy occlusion of one or both long posterior ciliary arteries or to disinsertion and reattachment of up to 4 rectus muscles. Occlusion of one LPCA or up to 3 recti had only a minor ischaemic effect on the iris vessels. Occlusion of both LPCAs produced necrosis of the anterior segment or ischaemia of the iris detectable by angiography. Disinsertion of 4 recti produced small patches of transient ischaemia in those areas of the iris most distal from the LPCAs. When further surgery is planned after retinal detachment cyclodiathermy or strabismus operations, fluorescein angiography is a useful indicator of the vascular status of the iris and hence of the possibility of necrosis of the anterior segment.

Animals↗
PubMedDate not supplied

[Bioethical principles in public health: limitations and proposals].

We propose to analyze the specificity of ethical problems in public health issues and to elucidate the applicability of principlism as a problem-solving strategy in this realm. Although well-established in clinical ethics, principlism is not an adequate model to be used in public health, since it is basically intended to serve as a moral guide in the physician-patient encounter. We discuss the possible adequacy of principles like "solidarity", "ontic responsibility" (as proposed by Jonas), and "caring or diaconal responsibility" as presented by Lévinas. Solidarity appears to be insufficiently specified, whereas the other two perspectives may be adapted to public health issues by bringing together Jonas' ontological and Lévinas' transcendental concerns to form a principle of protection that might better serve the purposes of such an ethics. This principle would help to identify more clearly the goals and agents involved in the implementation of public policies that are expected to be both morally correct and pragmatically effective.

Bioethics↗