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Biomedical subjects

J Dehais

Publications and source records attributed to J Dehais.

At least 73 records · Page 4Linked to original sources

[Centrosomatic tuberculous vertebral osteitis. General review apropos of 4 cases].

Defined by the localisation of tuberculous infection in the vertebral body, centrosomatic tuberculous vertebral osteitis, which is rarer than Pott's spondylodiscitis, is more frequently seen in the cases of multifocal tuberculosis occurring preferentially in male black African immigrants approximately 30 years of age. Central area destruction, which has been the initial and pathognomonic radiological sign since its description by Calve and Galland , may progress towards wedging of the vertebral body, and even to its complete disappearance, accompanied by reactive osteocondensation . Infection from this particular localisation of vertebral tuberculosis may spread via arterial branches posterior to the vertebral bodies.

Adult↗

[Osteomalacia. Histologic definition and significance of the histodynamic analysis on undecalcified bone].

Bone histomorphometry has a major significance in metabolic bone diseases, and especially in osteomalacia. This technique needs a strict methodology with quantitative analysis on undecalcified bone and measure of calcification rate. Histologic definition of osteomalacia includes hyperosteoidosis, characterized by thickened osteoid edges, and decrease of calcification rate. Histodynamic analysis on undecalcified bone provides interest in diagnosis, prognosis and supervision of this affection.

Biopsy↗

[Articular infections in adults. Peripheral and vertebral involvement with common bacteria and tubercle bacteria].

2,166 cases of joint infection in adults were reviewed during a national inquiry. The peripheral infections due to common germs (1,080 cases) and tubercle bacilli (260 cases) were characterised by their frequency after the age of 60, the role of corticotherapy in onset of the infection and the predominance of staphylococci (60%) in pyogenic infections, the low proportion of deaths (4%) and the necessity of early treatment to observe better functional results. The vertebral lesions due to common bacteria (491 cases) were mainly localised in the lumbar regions (70%) whereas tuberculous infections (335 cases) usually affect the lower dorsal vertebrae (50%). Neurological signs and abscess were more frequent during tuberculous involvement. Needle puncture of the vertebral focus should be recommended owing to its help in etiological diagnosis. A cure was generally obtained without operation in the form of complete or incomplete block, this appearance is, however, less frequent than radiological signs of fixed osteolysis. The mortality is just as low as in peripheral infections.

Adolescent↗

[Fiessinger-Leroy-Reiter disease seen in a rheumatology unit. Apropos of 71 cases].

71 cases of Reiter's disease have been observed since 1972. After a study of the clinical characteristics of these cases, we report the results of 3 laboratory examinations which, grouped together, facilitate the diagnosis of the complete forms, but, above all, of the incomplete and synovial forms. The search for chlamydia cell inclusions was positive in 80% of cases where carried out. The lymphocyte transformation test with the chlamydia antigen was positive in 72% of cases. The search for HLA B27 was positive in 78% of cases.

Adult↗

Results of the rectal administration of ketoprofen in fifty-two patients.

The results of a clinical study of ketoprofen suppositories suggest that the drug is effective when given in this way. It is suggested that, in the treatment of inflammatory rheumatic disorders, advantage should be taken of the longer duration of action of ketoprofen suppositories to prescribe their administration early in the morning and before retiring. Local intolerance occurred in only 4 of 52 patients.

Adult↗

[Atrioventricular blocks and rheumatoid arthritis].

Among 379 hospitalized cases of rheumatoid polyarthritis, 12 auriculo-ventricular blocks were detected between 1965 and 1975. The formation of a complete AV block is usually preceded by a branch block or a first degree block. During the installation of a pacemaker, hypoexcitability was usually noted. Four of the patients died. In the other 8 the evolution has been satisfactory over periods from 6 months to 4 years. Conduction disturbances were found in cases of polyarthritis of 10 years duration on the average. The articular lesions were normally diffuse with considerable lesions detectable radiologically. In many cases the frequency of extra-articular lesions indicated the severity of the rheumatic disease. From the anatomical point of view, histological lesions of rheumatoid polyarthritis were found : granuloma and arteritis in the myocardium. Only 8 authors have previously reported lesions of the donducting vessels at autopsies carried out on rheumatoid polyarthritis cases who had presented AV blocks. Except for Thery's case related to amylosis of the nodal tissue, rheumatoid granulomas occupied the whole or part of the nodal tissue. In elderly subjects suffering from rheumatoid arthritis, it was difficult to establish a strictly rheumatoid origin for the AV blocks observed, unless specific granulomas were discovered anatomically in the nodal tissue.

Adult↗

[Multicentric reticulohistiocytosis (lipoid dermato-arthritis). Apropos of a case with fatal outcome].

The authors report the case of a 37-year-old man affected by a seronegative polyarthritis associated at first with erythroderma and then with cutaneous and subcutaneous papulo-nodular structures and a xanthomatous eryption. Histological examination of the cutaneous nodules and of the synovial membrane confirmed the diagnosis of multicentred reticulohistiocytosis by showing the presence of lipid infiltrates in the histiocyte cells and of multinucleate giant cells. A study of the ultrastructure of the histiocytes revealed the presence of numerous intracytoplasmic vacuoles. In spite of antimalaria treatment, with cortisone and then with immuno-depressants, the outcome was fatal with a picture of acute reticulosis and neurological disorders. In discussing this case, the authors also make a general review of the subject.

Adult↗