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Biomedical subjects

H Lackner

Publications and source records attributed to H Lackner.

At least 109 records · Page 6Linked to original sources

Visceral manifestation of cat scratch disease in children. A consequence of altered immunological state?

A 12-year-old girl with a 2-month history of fever and abdominal pain was admitted to our hospital. Ultrasound and CT scans of the abdomen showed multiple hypoechoic lesions of liver and spleen. Screening for zoonosis revealed high positive titers to Bartonella henselae. T-cell deficiency was demonstrated and remained almost unchanged during a follow-up of 11 months. A review of the literature shows that disseminated visceral affection is a rare presentation of cat scratch disease (CSD) in childhood and adolescence. Further immunological investigations are needed in more patients with CSD to confirm whether an altered immunological state may be responsible for the atypical visceral manifestation of CSD.

Animals↗

[Clinical experiences with adrenaline as therapy and prevention of E. coli-L-asparaginase-induced anaphylaxis].

Management of E.-coli L-asparaginase induced anaphylaxis mainly consists of application of i.v. epinephrine but also in the withdrawal of this drug. Despite of this firm recommendation we have shown in 7 patients with E. coli L-asparaginase induced anaphylaxis, that further application of the drug is possible in the presence of a continuous epinephrine infusion (0.01-0.02 mg/kg) started one hour before and finished one hour after the concomittant infusion of the E.-coli L-asparaginase. In none of the patients there was a second event of anaphylaxis even though most of the patients still had to continue on E.-coli L-asparaginase with an average of more than 6 infusion.

Anaphylaxis↗

The influence of maximum supportive care on dose compliance and survival. Single-center analysis of childhood acute lymphoblastic leukemia and non-Hodgkin's-lymphoma treated within 1984-1993.

BACKGROUND: The administration of intensive, risk-adapted multiagent chemotherapy has markedly improved the event-free survival in childhood acute lymphoblastic leukemia and Non-Hodgkin's lymphoma. Current treatment protocols may achieve complete remission rates of more than 95% and event-free survival rates of approximately 70% in non-B-acute lymphoblastic leukemia/non-B-Non-Hodgkin's lymphoma patients. Due to a higher proliferation rate and aggressiveness of B-cells treatment of B-acute lymphoblastic leukemia/B-Non-Hodgkin's lymphoma must be more intensive, but can be shorter to attain similar event-free survival rates. METHODS: Between 1984 and 1993 79 primarily admitted patients up to 18 years of age (range 0.6-17.9 years) received therapy according to the treatment protocols ALL A 84, ALL 86, NHL 86, ALL 90 and NHL 90 of the Berlin-Frankfurt-Münster Study Group. Intensive phases of treatment were given on an inpatient basis with maximum supportive care in order to achieve the prescribed doses. RESULTS: Median follow-up time from diagnosis is now 8 years (range 40 to 157 months) with a probability of event-free survival of 92% for the entire group. CONCLUSION: Multiagent chemotherapy tailored to the individual risk profile of each patient but given in the prescribed dose is currently the mainstay to achieve high complete remission rates with the aim to cure most acute lymphoblastic leukemia/Non-Hodgkin's lymphoma patients. The administration of intensive supportive care is important for the achievement of complete drug dosage and for the reduction of therapy-related toxicity.

Adolescent↗

Treatment of children with anagrelide for thrombocythemia.

PURPOSE: Essential thrombocythemia (ET) is a rare myeloproliferative disease characterized by hyperproliferation of megakaryocytes and persistent elevation of platelets. Major complications are thrombosis, bleeding, and microvascular occlusive symptoms, sometimes resulting in serious morbidity. In patients with platelet counts > 1000 x 10(9)/l, cytoreduction is important to reduce the risk for thrombotic or hemorrhagic events. However, the frequent side effects and the carcinogenic potential of many cytoreductive agents limit their use, especially in younger patients. Anagrelide, a noncarcinogenic agent with moderate toxicity, has been successfully used in adult patients with ET, but experience with anagrelide in pediatric patients with ET is limited. PATIENTS AND METHODS: Three children who received anagrelide (Induction dose 1 mg/day, maintenance dose 1 to 2.5 mg/day) as therapy for ET are described. RESULTS: All children had a rapid and marked decline of their platelet counts, and only one child developed mild and transient abdominal side effects. CONCLUSIONS: Treatment with anagrelide seems to be a promising approach for children with ET. It should be considered as first-line therapy because of its selective activity against platelet production, tolerable toxicity, suspected negligible cancerigenic effect, and the possibility of oral administration.

Adolescent↗

Adoptive immunotransfer with viable donor mononuclear cells for recurrent chronic myelogenous leukemia after allogeneic bone marrow transplantation in two children.

Two children with Ph+ chronic myelogenous leukemia (CML) relapsed in the chronic phase after allogeneic bone marrow transplantation (BMT). They were treated with transfusions of peripheral blood mononuclear cells (PBMC) obtained from the former bone marrow donors in combination with interferon alfa-2. In one child, CML was successfully controlled as shown by disappearance of Ph+ metaphases as well as negativity for BCR-ABL fusion gene transcripts demonstrated by polymerase chain reaction (PCR) analysis. The patient has remained in complete remission without evidence of disease for 12 months after donor PBMC transfusions. The other child showed disappearance of BCR-ABL gene transcripts by PCR analysis only in peripheral blood cells, but PCR positivity persisted in bone marrow samples. These results indicate that adoptive immunotherapy may be a further alternative in children with relapse of CML after allogeneic BMT as previously described for adult patients.

Adolescent↗