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Biomedical subjects

B Jereb

Publications and source records attributed to B Jereb.

At least 73 records · Page 4Linked to original sources

Preoperative versus postoperative radiotherapy, single versus multiple courses of actinomycin D, in the treatment of Wilms' tumor. Preliminary results of a controlled clinical trial conducted by the International Society of Paediatric Oncology (S.I.O.P.).

The preliminary results of a controlled clinical trial organized by the S.I.O.P. of radiotherapy and chemotherapy in patients with nephroblastoma are presented. Forty-two centers have participated. Between September 1971 and October 1974, 398 patients were registered; 195 were eligible for the trial and were randomized. The remaining 203 patients were excluded from the trial, but were followed in the same way as the patients in the trial. The results were evaluated in terms of recurrence-free survival rate and survival rate. Results in patients who received preoperative and postoperative radiotherapy (group A, 73 patients) were compared with the results in patients who recieved only postoperative radiotherapy (group B, 64 patients). The tumor ruptured at surgery in three patients of group A, and in 20 patients of group B, a difference that is statistically significant. No significant difference in survival and recurrence-free survival between groups A and B is observed at present. Results in patients treated with a single course of actinomycin D (group I, 80 patients) were compared with the results in patients treated with multiple courses (group II, 80 patients). At present, no significant difference is found between the two groups.

Adolescent↗

Considerations on treatment of nephroblastoma. A study of 36 cases.

Thirty-six patients with nephroblastoma in Stages I, II and III treated at Radiumhemmet between 1966 and 1973, were analysed. The tumors were classified into three different histological types. All 10 patients in Stage III have developed metastases. All patients in Stages I and II (5 out of 26) who developed metastases had poorly differentiated (histological Type III) tumours. The indications for postoperative irradiation and chemotherapy for the different stages and histological types of the tumour are discussed.

Child↗

Treatment of metastases in nephroblastoma.

A series of 36 children with nephroblastoma treated between 1966 and 1973 was analysed. None of the patients with stages I or II and microscopic type I or II developed metastases; 5 of 7 patients with stages I or II and microscopic type III developed metastases. All patients in stage III developed metastases. Fifteen patients developed metastases after the termination of the primary treatment. Of 9 patients with pulmonary metastases only, 6 are free of disease, all patients with metastases in other sites are dead.

Child↗

Anaplastic giant-cell carcinoma of the thyroid. A study of treatment and prognosis.

In 79 cases of histologically verified anaplastic giant-cell carcinoma, symptoms, treatment, and prognosis were documented. Seventy-eight patients are dead, the mean survival time being 2.5 months. One patient is cured. It was concluded that surgery and/or radiotherapy alone are not sufficient. The results from an additional 8 patients also treated with methotrexate indicate a positive therapeutic effect, the mean survival time being 9.4 months. Disappearance of recurrent tumor or pulmonary metastases was noted in 2 patients.

Adult↗

Radiation dose to the human body from intravenously administered 75Se-sodium selenite.

The dose of radiation to the human body and some of its organs after intravenous administration of 75Se-sodium selenite for diagnostic purposes has been calculated on the basis of followup of 26 patients for as long as 517 days with measurements of: 1. The retention of 75Se in the whole body. 2. The retention of 75Se in the blood, liver, kidneys, ovaries, testicles, and hair. 3. The excretion of 75Se in urine and feces. Whole-body counting and profile scanning were done on the patients and samples of blood from different organs, urine, and feces were measured for radioactivity. The dose of radiation received was calculated for an average patient of 70 kg. These doses were found to be slightly higher than previously reported on a smaller number of patients and with a shorter follow-up. They were slightly lower than those from 75Se-methionine to the whole body but higher to the liver and kidneys. The margin of error in this investigation was estimated to be about 20% for the whole-body dose and probably higher for different organs, mostly due to the poorly known rate of retention of selenite in different organs.

Adult↗