Long-term outcome of 89 low-grade brain-stem gliomas after interstitial radiation therapy
| Autor: | Fritz Mundinger, D. F. Braus, Walter Birg, Joachim K. Krauss |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Adult
Male Time Factors Adolescent medicine.medical_treatment Biopsy Brain Stem Neoplasm Brachytherapy Astrocytoma Iodine Radioisotopes Stereotaxic Techniques Life Expectancy Interstitial Radiation Therapy Medicine Humans Child Retrospective Studies Chemotherapy medicine.diagnostic_test business.industry Brain Neoplasms Retrospective cohort study Middle Aged medicine.disease Iridium Radioisotopes Radiation therapy Catheter Child Preschool Female business Nuclear medicine Brain Stem |
| Zdroj: | Journal of neurosurgery. 75(5) |
| ISSN: | 0022-3085 |
| Popis: | ✓ Between 1974 and 1985, 89 patients suffering from histologically confirmed, nonresectable low-grade astrocytomas located in the brain stem were entered into a retrospective study. Iodine-125 (125I) was implanted in 29 patients and iridium-192 (192Ir) in 26 patients. Computerized tomography revealed that 78% of the tumors in these patients were located chiefly in the mesencephalic region, 70% were circumscribed, and 78% were contrast-enhanced. Thirty-four patients underwent biopsy without prior aggressive tumor-specific therapy such as chemotherapy or external beam irradiation. Among these, 70% of the tumors were located predominantly in the pons, 74% were diffuse, and 59% were hypodense or isodense after contrast enhancement. Long-term follow-up investigations indicated that life expectancy after interstitial radiation therapy with 125I implanted directly by catheter either permanently or temporarily showed a more favorable trend than that after treatment with 192Ir. Interstitial radiation therapy with 125I appears to be an effective treatment for slowly proliferating, differentiated, well-delineated, nonresectable brain-stem gliomas. This technique makes it possible to achieve radio-surgical tumor control and, when carefully applied, represents the least traumatic treatment. Reduction of the tumor mass brings about improvement of the clinical symptoms. Further investigations on the biological behavior of brain-stem gliomas and prospective randomized long-term follow-up studies are necessary to evaluate the different kinds of treatment available for these patients. |
| Databáze: | OpenAIRE |
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