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Biomedical subjects

A A Audebert

Publications and source records attributed to A A Audebert.

At least 55 records · Page 3Linked to original sources

[Cases of acute leukaemia following immunosuppressive therapy for disseminated sclerosis and for Behçet's syndrome (author's transl)].

On the basis of two personal cases of acute leukaemia occurring following immunosuppressive therapy for disseminated sclerosis and for Behçet's syndrome, the literature is reviewed. Thirty three similar detailed cases were collected. They are characterised in general by the prolonged use of immunosuppression. The acute leukaemia affected the granulocyte series in the majority of cases. In 30%; the leukaemia was preceded by a phase of several months of preleukaemic type dysmyelopoiesis. The mechanisms of action explaining this carcinogenic risk in a general way are multiple: the role of marrow aplasia, chromosomal abnormalities, the activation of a leukaemogenic virus, the role of immunodepression and that of repeated antigenic stimulation may all be discussed. The risks associated with such treatment should thus be borne in mind when evaluating its indications.

Behcet Syndrome↗

[Acute granulous leukemia in multiple myeloma. Apropos of 5 cases].

The authors report five cases of acute granular leukemia which complicated the course of multiple myeloma treated by chemotherapy. They then review the literature, and discuss 30 cases which they found. The important point clinically is the long duration of the course (average 56 months) in multiple myeloma complicated by acute granular leukemia. Usually chemotherapy permitted a good quality remission and when the leukemia develops there is no longer any trace of myeloma. The mechanisms of onset of this type of leukemia during myeloma are discussed. They are probably complex and various but there is no doubt concerning the responsability of chemotherapy and in particular alkylating agents.

Adult↗

[Inagural lymphoblatic transformation in chronic myeloid leukemia. Clinical and cytogenetic study of one case].

A fifty-year old patient was treated for acute lymphoblastic leukemia. One month after a complete remission, a syndrome suggesting chronic myeloid leukemia led the authors to study the marrow karyotype which revealed the existence of a Philadelphia chromosome. A second lymphoblastic attack occurred rapidly and a second complete remission was easily obtained. A few weeks later, occurred lymphoblastic meningitis. A new cytogenetic study then showed duplication of the Philadelphia chromosome. One may imagine that the initial attack represented acute lymphoid transformation of chronic myloid leukemia. The theoretical and practical significance of this case is discussed.

Bone Marrow↗

[Systemic mastocytosis with myeloid splenomegaly type hematological manifestations].

The authors report the case of a patient suffering from systemic mastocytosis with cutaneous, medullary, bone, hepatic and splenic involvement, the clinical and haematological picture of which was that of myeloid splenomegaly. Furthermore, this picture included hypersplenism, clearly demonstrated by isotopic study and the successful results of splenectomy. Blood histamine levels were normal though urinary excretion of histamine was increased. Histamine levels in the spleen were greatly increased. Serotonin levels in the blood and its urinary metabolites were normal. Heparin activity was demonstrated in the spleen, but not in the blood.

Biopsy↗

[Relationship between blood zinc level and EEG changes under the influence of hyperpnea in normal subjects].

The red blood cell and serum zinc levels have been determined by atomic absorption spectrophotometry on 27 human subjects in apparent good state of health, tested monthly for five months successively. The subjects who present a decreased frequency of the E.E.G. pattern during hyperventilation, also show a diminished red blood cell Zn level, by comparison with the other subjects. This phenomenon suggests a possible relationship between red blood cell zinc concentration and E.E.G. signs of cortical hyperexcitability. These findings are discussed in the light of the recent literature.

Adolescent↗

[Monoclonal paraproteins other than in Kahler's and Waldenström's diseases. Apropos of 67 cases].

On the basis of 67 cases of patients suffering from monoclonal dysglobulinaemias other than multiple myeoloma and Waldenström's disease, the authors report the characteristics of their series. The review current diagnostic criteria and, in this context, present their experience of caryotypic determination which was carried out in 24 subjects. These dysglobulinaemias may occur in isolation, on a familial basis or in association with some other pathology, which leads to the suggestion of a number of aetiopathogenic hypotheses, which are probably interlinked.

Adult↗

[Myelomatous G-kappa immunoglobulin with antistreptolysin O activity].

A new case of myeloma with antistreptolysin O activity is described. The myeloma protein is Kappa IgG. By precipitation of this myeloma IgG with anti-Kappa antiserum, the antistreptolysin O activity is completely inhibited. For the antibody activities of the myeloma protein described in the litterature, the antistreptolysin O activity is the most frequently found. With this 19th case the authors discuss the fundamental problems of the antibody activities of myeloma protein.

Antibody Specificity↗

[Epileptic seizure revealing a cerebral arterial accident during administration of oral contraceptives with platelet function disorders].

The authors observed the onset of an epileptic fit in a 27 year-old woman, ten months after starting treatment with the contraceptive pill. Carotid arteriography revealed the existence of non-obstructive lesions in the area supplied by the left anterior cerebral artery. Disorders of platelet aggregation and disaggregation were demonstrated 15 days after stopping the contraceptive treatment. The significance of these abnormalities is discussed in the light of data in the literature.

Adult↗

[The treatment of acute myeloblastic leukemia in the elderly patients (author's transl)].

Thirty eight patients over 60 years with acute myeloblastic leukemia are studied. 16 p. cent (3 out 19) of the patients 60--69 year-old and 42 p. cent (8 out 19) over 70 died before any treatment or effective chemotherapy. Among the patients who received and effective chemotherapy, 48 p. cent responded and 7 complete remissions were obtained. The rate of responders is lower in oldest patients; nevertheless when a response whether complete or partial is observed, the survival of responders is dramatically improved. This invites to treat with effective chemotherapies every patients suffering from acute myeloblastic leukemia in the elderly. However, the comfort and the quality of survival must not be omitted.

Acute Disease↗

[Headache following intrathecal therapy in acute leukemia: trial of tiapride as a symptomatic treatment (author's transl)].

11 patients experienced 40 intrathecal injections of cytotoxic drugs during the treatment of acute leukemia. Tiapride was used as a preventive or curative therapy for headache. Results were found excellent or good in 70% of cases. Frequency and intensity of headache were reduced by half. Tiapride seems more effective in early headache than in cephalalgia occuring later.

Adult↗

[Association of scleroderma with primary biliary cirrhosis (author's transl)].

A new case of Reynold's syndrome is reported. This patient was a 70 years old woman with scleroderma (grade II) and PBC (grade III - IV), associated with Sjögren's syndrome and cryoglobulinemia. She experienced 10 years earlier Raynaud's syndrome and arthralgia. A review of the Literature reveals 22 other detailed cases whose data are collected in this study. Considerations upon a common pathophysiology for scleroderma, PBC and Sjögren's syndrome are developed. Impairment of the function of suppressor T cells in patients undergoing these diseases is possible.

Adult↗

[Very long survivals of chronic granulocytic leukemia (author's transl)].

Following busulfan induced bone marrow insufficiency, a patient witha chronic granulocytic leukemia (CGL) has had a survival lasting 18.5 years. During remission, chromosome studies on bone marrow have not shown Philadelphia chromosome (Ph 1). There was no correlation between this observation and initial pronostic factors from literature. Analysis of 14 cases (13 from literature) of prolonged survival showed that Ph 1 was absent in 4 cases when only 15% of CGL are initially Ph 1 negative. Therapeuticcaryoconversions were probable. Recently attempts have been made to eradicate the abnormal Ph 1 positive clone. Some hopeful results are reported.

Adult↗