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Biomedical subjects

A Atzinger

Publications and source records attributed to A Atzinger.

40 records · Page 3Linked to original sources
PubMed1981

[Radiotherapy of the thymoma (author's transl)].

A report is given on 24 thymomas irradiated between 1971 and 1980. Ten patients were irradiated after a radical thymectomy, three after partial resection and eleven after histologic diagnosis alone The patients were treated by different irradiation methods, mostly with the photons of a Co60 unit and a 43 MeV betatron. The average focal dose was 45 Gy which were administered within five weeks. The observation period was five years on an average. The general five year survival probability was 54%; some partial collectives were evaluated individually. These studies show that by unique radiotherapy, too, a two-year survival rate of 100% and a five-year survival rate of 50% as sell as a local recurrence rate of about 20% can be reached. Patients under fourty years with epithelial thymomas and a dose of less than 40 Gy have a less favorable prognosis. Compared to other authors, a relatively high rate of remote metastases was observed which necessitated extensive follow-up measures and suggests an adjuvant chemotherapy.

Adolescent↗
PubMed1981

[Monitoring of radiation via CT (author's transl)].

The results presented in this article lead to the conclusion that it would be appropriate to demand control or monitoring of radiation via CT whenever complicated exposure to radiation is required. Such control appears mandatory in order to guarantee a sufficiently high tumour dosage and satisfactory protection or minimum burdening of the surrounding tissue. At first sight, it may seem that such CT operations are relatively costly. However, once the teamwork has been properly established, both the time required and the cost involved remain within reasonable limits and will probably not be greater than control via therapy simulator. The decisive factor is that computerised tomography should offer sufficient possibilities of translating such control into reality by effecting the necessary dosage adjustments in accordance with given requirements.

Esophageal Neoplasms↗
PubMed1980

[Radiotherapy of blastomatous haemangiomas. Results obtained in consideration of the tendency towards low-dosage administration (author's transl)].

The article reports on the well-known self-healing tendency and radiosensitivity of blastomatous haemangiomas. The change in treatment methods is shown. According to our experience collected during 1950--1964 and 1964--1968 there is a trend towards lower dosage. During the 1969--1976 period, 554 blastomatous haemangiomas were exposed to low-dosage radiation. Sr90 treatment (1000--2000 rd) yielded very good results, soft radiation being somewhat more unfavourable at our dosage level (usually 600 rd) than our previous higher dosage, which means a slight correction towards increasing the dosage should be effected. The overall result is better if treatment is initiated during the first half year of life. Radiation therapy is the method of choice in blastomatous haemangiomas. It should be employed frequently despite the high self-healing quota, since 1. there are practically no unfavourable side effects if the dosage is kept at a low level; 2. retrogression is accelerated; 3. the cosmetic result, which is not always quite satisfactory in self-healing, can usually be improved upon by radiation; and, finally, 4. the risk of ulceration and haemorrhage is reduced.

Dose-Response Relationship, Radiation↗