[HBeAg/Anti-HBe status, anti-HD and ALT levels in blood donors found to be chronic AgHBs carriers].
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Biomedical subjects
Publications and source records attributed to H Skouri.
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UNLABELLED: Alloimmune thrombocytopenia is due to feto-maternal incompatibility in the HPA systems and is usually considered in the diagnosis of neonatal thrombocytopenia after other causes have been excluded. We report on two Tunisian observations of alloimmune neonatal thrombocytopenia due to anti-HPA-5b (Bra) antibodies. CASE REPORT: Two neonates presented at birth with a thrombocytopenic purpura unexplained by usual causes of neonatal thrombocytopenia. Alloimmune neonatal thrombocytopenia was diagnosed by the determination of parental and neonatal platelets antigens phenotypes and by the presence of HPA-5b (antiBra) antibodies in maternal sera. A favourable evolution was obtained after maternal platelet transfusions. CONCLUSION: Alloimmune neonatal thrombocytopenia is a serious affection, which exposes to intracranial haemorrhage. These observations of HPA-5 neonatal alloimmunisation in Tunisia provide additional information on the geographic distribution of the disease and its prognosis.
PURPOSE: The purpose of our study was to clarify the frequency of these causes. PATIENTS AND METHODS: Retrospective study using reports of newborns in the neonatal unit in Sousse (Tunisia) from 1991 to 1996, hospitalized for hemorrhagic syndrome defined by bleeding, exteriorized or not, whatever its importance, severity, causes and the associated clinical and biological disorders. Isolated meningeal hemorrhages, limited cutaneo-mucous hemorrhages (conjunctival hemorrhages, bruises), and genital crises of the newborn, were excluded. RESULTS: One hundred and fifty-five hemorrhagic syndromes were observed from 7,128 newborn infants (2.17% of hospitalization). Sex ratio was 1.42. Prematurity rate was 35.7%. The Apgar score was < 7 at one minute in 40.7% of cases. Disorders associated with hemorrhagic syndromes were observed in 118 newborn infants (76.1%) with a predominance of neonatal infections (35.6%). The etiology of neonatal hemorrhages was specified in 93% of cases: newborn hemorrhagic disease (27.7%), disseminated intravascular coagulation (27.1%), isolated thrombocytopenia (9%), digestive lesions (13.5%), and obstetrical trauma (2.6%). CONCLUSION: The frequency of the newborns hemorrhagic syndromes underlines the need for its systematic prevention by vitamin K in the antenatal period to the mother and after birth to the newborn.
A case of bilateral paravertebral extramedullary hematopoietic masses with symptomatic pleural effusion in a patient with beta-thalassemia intermedia is reported. The pleural effusion was controlled by pleurodesis using tetracycline. We review the literature on this uncommon complication of beta-thalassemia intermedia and discuss the options for diagnosis and treatment.
UNLABELLED: Second malignant neoplasms are a major cause of late morbidity and mortality following treatment for Hodgkin's disease. Gastric carcinoma belong to the rare secondary malignancies induced by radiation-therapy and it is associated with a poor prognosis. We report a patient treated for Hodgkin's disease by 6 ABVD and total lymphoid radiation therapy, who developed a gastric carcinoma 9 years after completing treatment. Our case fits the criteria for radiation induced malignancies reported from the literature: IN CONCLUSION: recommendations are presented for both prevention and early detection of the tumours we recommend a strict follow-up for patients treated for HD to detect second cancers.
Acquired amegakaryocytic thrombocytopenic purpura is a rare disorder characterized by severe thrombocytopenia due to the absence of bone marrow megakaryocytes. The pathogenic mechanisms of this disorder have not well defined; consequently, several empirical therapies are used. We reported the case of a 38-year-old mean who was hospitalized for serious bleeding syndrome. The platelet count was 10 yen10(9)/L. The bone marrow aspirate and biopsy showed the absence of megakaryocytes but otherwise normal granulocyte and erythroid precursors. No definable etiology has been found. After the unsuccessful use of prednisone, intravenous immunoglobulin therapy was started and resulted in favorable reponse.
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We report the case of a healthy woman (K.M.) who, after multiple pregnancies, developed an antibody directed against a nonpolymorphic region of the polymorphonuclear neutrophil (PMN) Fc gamma receptor III (FcRIII-CD16), which caused transient neonatal alloimmune neutropenia (NAIN). The antigenic target of the antibody was determined by an immunoprecipitation procedure and by phenotyping the mother's PMN. These latter did not react with monoclonal CD16 or polyclonal and monoclonal NA1 and NA2 antibodies, demonstrating the absence of PMN-FcRIII and, consequently, the NA-null phenotype. We also determined the frequency of the NA-null phenotype in a healthy, white population. Among 3,377 random blood donors, only four (in addition to K.M.) were PMN-FcRIII-deficient. These five individuals were healthy and only one (K.M.) presented an allo-CD16 antibody. The gene frequency of the NA-null phenotype was calculated as 0.0274 +/- 0.0059. We conclude that PMN-FcRIII deficiency is a rare phenomenon that can lead to CD16 alloimmunization and thus cause NAIN.
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