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Biomedical subjects

G Dannecker

Publications and source records attributed to G Dannecker.

28 records · Page 2Linked to original sources

Intrauterine development of posthaemorrhagic hydrocephalus.

Differential diagnosis of intrauterine hydrocephalus includes various types of cerebral malformations. In about 30% of cases the pathogenesis remains unknown. During 1983-1985 we diagnosed intrauterine posthaemorrhagic hydrocephalus (IPHH) in four newborns. In three of the reported cases intraventricular haemorrhage (IVH) could already be proven in the fetus. Due to these observations, IPHH has to be considered with the differential diagnosis of congenital hydrocephalus. Haemorrhagic diathesis and multiple pregnancy are discussed as possible risk factors for this severe fetal complication.

Adult↗

[Fetal outcome following cesarean section in premature labor. Isthmocorpus longitudinal section or isthmian transverse section?].

Little is known about the comparative safety of the isthmocorporal versus the low transverse uterine incision for Caesarean delivery of the very low birthweight infant. To address this question, the fetal outcome of 59 deliveries by isthmocorporal incision and 76 by low transverse incision were analysed. The incidences of a 5-min-Apgar score of 6 or lower and UA-pH were not significantly different. No correlation was evident between early intraventricular hemorrhage and type of incision. The number of neonatal deaths weighing less than 1000 g associated with vertical incision (27%) was lower than that associated with the low transverse incision (47%). Nevertheless the difference was not statistically significant. The decision for the type of incision should be made intraoperatively by an experienced surgeon. This factor is probably more important than the choice of a particular incision.

Apgar Score↗

[Crohn disease: initial experiences with cyclosporin A in an adolescent girl].

The diagnosis of Crohn's disease with extensive involvement of small intestine and colon was first made in a 12 3/4-year-old girl, now 15 1/2 years old. Despite continued treatment with prednisolone and salazosulfapyridine, as well as azathioprine and metronidazole, no lasting remission was obtained. Widespread severe osteoporosis with vertebral fractures made it necessary to discontinue the prednisolone, despite endoscopically and biochemically confirmed signs of activity of the disease. Administration of cyclosporin A in this situation produced phases of improved clinical and biochemical parameters. Regular control of biochemical levels failed to reveal any drug-specific acute side-effects. Because of the increased incidence of malignant lymphoma under cyclosporin A this drug should be held in reserve in the treatment of Crohn's disease, until results from controlled studies have become available.

Adolescent↗

The combined effect of interferon-beta and cytostatic drugs on human tumor cell lines in vitro.

Three human tumor cell lines (one osteosarcoma and two neuroblastoma lines) were assessed for combined interferon-beta (IFN-beta)/chemotherapeutic drug antigrowth effect under in vitro conditions. Two different methods to measure this effect were used: colony formation in soft agar and counting of cells growing as monolayers. The cells were incubated with a chemotherapeutic drug (adriamycin, dacarbazine, actinomycin D, cis-platinum, methotrexate, VP-16-213, or vincristine) at relevant concentrations for 1 h, washed twice, and incubated with IFN-beta in concentrations ranging from 100 to 1000 IU for continuous exposure. All combinations resulted in an additive or synergistic combination effect with one exception: methotrexate/IFN-beta in the monolayer method after 1 week, a combination which was additive after 3 weeks however. The combinations VP-16-213/IFN-beta and cis-platinum/IFN-beta produced the most pronounced synergistic effects. A statistical evaluation of the null hypothesis for additivity was done. These results provide a rationale for designing clinical studies combining IFN-beta with current chemotherapeutic drugs.

Antineoplastic Agents↗

[Bilateral middle ear tuberculosis and morphologically unusual lung tuberculosis in an 11-year-old boy].

A 11 year old boy presented with chronic otorrhea and hearing impairment. After repeated tympanorevision macroscopic findings suggested the presence of middle ear tuberculosis. Chest X-ray revealed unusual abnormalities which in conjunction with normal pulmonary function and overall well-being did not support concurrent pulmonary tuberculosis. However, microbiological investigations verified this diagnosis in both sites, and proper tuberculostatic treatment proved successful.

Biopsy↗