International journal of radiation oncology, biology, physics
-
Int. J. Radiat. Oncol. Biol. Phys. · Jan 1998
Lobular carcinoma in situ as a component of breast cancer: the long-term outcome in patients treated with breast-conservation therapy.
The purpose of this study is to assess the long-term outcome of breast cancer patients with a component of lobular carcinoma in situ (LCIS) treated with conservative surgery and radiation therapy. ⋯ Patients with LCIS as a histologic component of breast cancer do not carry a worse prognosis than breast cancer patients without an LCIS component. Furthermore, the comparable local control rates between conservatively treated patients with or without LCIS suggests that patients with a histologic component of LCIS are suitable candidates for conservative surgery and radiation therapy.
-
Int. J. Radiat. Oncol. Biol. Phys. · Jan 1998
Treatment of locally recurrent rectal carcinoma--results and prognostic factors.
To assess the local control and survival in patients who received pelvic irradiation for locally recurrent rectal carcinoma. ⋯ Survival is poor for patients who develop local recurrence following previous surgery for rectal carcinoma. Pelvic radiation therapy provides only short-term palliation, and future efforts should be directed to the use of effective adjuvant therapy for patients with rectal carcinoma who are at high risk of local recurrence.
-
Int. J. Radiat. Oncol. Biol. Phys. · Jan 1998
Randomized Controlled Trial Clinical TrialValidation and predictive power of Radiation Therapy Oncology Group (RTOG) recursive partitioning analysis classes for malignant glioma patients: a report using RTOG 90-06.
The recursive partitioning analysis (RPA) classes for malignant glioma patients were previously established using data on over 1500 patients entered on Radiation Therapy Oncology Group (RTOG) clinical trials. The purpose of the current analysis was to validate the RPA classes with a new dataset (RTOG 90-06), determine the predictive power of the RPA classes, and establish the usefulness of the database norms for the RPA classes. ⋯ The validity of the model is verified by the reliability of the RPA classes to define distinct groups with respect to survival. Further evidence is given by prediction of MST and 2-year survival for all classes except Class II. The RPA classes explained a good portion of the variation in survival outcome in the data. Lack of correlation in RPA Class II between datasets may be an artifact of the small sample size or an indication that this class is not distinct. The validation of the RPA classes attests to their usefulness as historical controls for the comparison of future Phase II results.
-
Int. J. Radiat. Oncol. Biol. Phys. · Jan 1998
Clinical TrialSurvival results from a phase I study of etanidazole (SR2508) and radiotherapy in patients with malignant glioma.
To report the survival results from a previous Phase I study of etanidazole (ETA) and radiotherapy in patients with glioblastoma multiforme (GBM n = 50) or anaplastic astrocytoma (AA n = 19) and examine survival according to age, Karnofsky performance status (KPS), and implant status. ⋯ The results of survival in this Phase I etanidazole study of patients with anaplastic astrocytoma are comparable to the results from other studies using bromodeoxyuridine, iododeoxyuridine, or procarbazine, lomustine (CCNU), and vincristine. The use of etanidazole with accelerated radiotherapy does not appear to improve survival in patients with glioblastoma multiforme compared to those treated with conventional therapies.
-
Int. J. Radiat. Oncol. Biol. Phys. · Jan 1998
Effective treatment of stage I uterine papillary serous carcinoma with high dose-rate vaginal apex radiation (192Ir) and chemotherapy.
Uterine papillary serous carcinoma (UPSC) is a morphologically distinct variant of endometrial carcinoma that is associated with a poor prognosis, high recurrence rate, frequent clinical understaging, and poor response to salvage treatment. We retrospectively analyzed local control, actuarial overall survival (OS), actuarial disease-free survival (DFS), salvage rate, and complications for patients with Federation International of Gynecology and Obstetrics (FIGO) (1988) Stage I UPSC. ⋯ Patients with UPSC should undergo complete surgical staging, and completely surgically staged FIGO Stage I UPSC patients can be effectively and safely treated with HDR vaginal apex brachytherapy and chemotherapy. Both OS and DFS of patients with UPSC are dependent on depth of myometrial invasion. The salvage rate for both local and distant UPSC recurrences is extremely poor. Complications from HDR vaginal apex brachytherapy were minimal.