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Biomedical subjects

A Fontaine

Publications and source records attributed to A Fontaine.

131 records · Page 8Linked to original sources
PubMedDate not supplied

[The compression syndrome: A revaluation of the value of postural angiography (author's transl)].

A total of 136 patients with a compression syndrome of the upper limb were examined systematically by selective dynamic angiography as developed by the Hôtel-Dieu Hospital in Montreal. The method consists of given multiple injections of a contrast medium with the patient's arm in thirteen different positions. This retrospective study demonstrated that this method carries very little risk and is well-tolerated by the patients. Conclusions are drawn from a comparative statistical analysis of the angiographic results and the therapy chosen. The practical value of the examination is not to confirm the anatomical site of the compression but to evaluate the characteristics of the stenosis before a decision is made whether to operate. In this respect, the positions in which the patient is sitting down and the arm is in abduction are those in which a difference is found between those patients operated upon and those given medical treatment, which is a point in favour of this particular procedure.

Adolescent↗
PubMedDate not supplied

Lead in bone: storage site, exposure source, and target organ.

The primary site of lead storage is in bone but relatively little attention has focused on this physiological compartment. Recent advances in measurement technology now permit the direct in vivo quantitative measurement of lead in bone, and this measure has great use in clinical and epidemiologic studies. Lead in bone is not a physiological sink, but can be mobilized back into the circulation in response to normal or pathological changes in mineral metabolism. Bone lead may be a significant source of target organ exposure under certain conditions, such as pregnancy, kidney disease, and menopause. Finally, the accumulation of lead in bone cells may have toxic consequences for bone status, and some of the mechanisms by which lead could affect bone mineral metabolism may also play a role in other target organ effects of lead.

Bone and Bones↗