International journal of radiation oncology, biology, physics
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Int. J. Radiat. Oncol. Biol. Phys. · Dec 2005
Multicenter StudyA phase I/II trial to evaluate three-dimensional conformal radiation therapy confined to the region of the lumpectomy cavity for Stage I/II breast carcinoma: initial report of feasibility and reproducibility of Radiation Therapy Oncology Group (RTOG) Study 0319.
This prospective study (Radiation Therapy Oncology Group Study 0319) examines the use of three-dimensional conformal external beam radiation therapy to deliver accelerated partial breast irradiation. Reproducibility, as measured by technical feasibility, was the primary end point with the goal of demonstrating whether the technique is widely applicable in a multicenter setting before a Phase III trial is undertaken. ⋯ Accelerated partial breast irradiation using three-dimensional conformal external beam radiation therapy was shown in this preliminary analysis of the first 42 evaluable patients to be technically feasible and reproducible in a multi-institutional trial using exceptionally strict dosimetric criteria.
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Int. J. Radiat. Oncol. Biol. Phys. · Dec 2005
Randomized Controlled TrialA phase III randomized, placebo-controlled, double-blind study of misoprostol rectal suppositories to prevent acute radiation proctitis in patients with prostate cancer.
Acute radiation proctitis is the most relevant complication of pelvic radiation and is still mainly treated supportively. Considering the negative impact of acute proctitis symptoms on patients' daily activities and the potential relationship between the severity of acute radiation injury and late damage, misoprostol was tested in the prevention of acute radiation-induced proctitis. ⋯ Misoprostol given as a once-daily suppository did not decrease the incidence and severity of radiation-induced acute proctitis and may increase the incidence of acute bleeding.
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Int. J. Radiat. Oncol. Biol. Phys. · Dec 2005
Radiation dosimetry predicts IQ after conformal radiation therapy in pediatric patients with localized ependymoma.
To assess the effects of radiation dose-volume distribution on the trajectory of IQ development after conformal radiation therapy (CRT) in pediatric patients with ependymoma. ⋯ Radiation dosimetry can be used to predict IQ after CRT in patients with localized ependymoma. The specificity of models may be enhanced by grouping according to tumor location.
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Int. J. Radiat. Oncol. Biol. Phys. · Dec 2005
Hypofractionated intensity-modulated radiotherapy (70 gy at 2.5 Gy per fraction) for localized prostate cancer: long-term outcomes.
To analyze the long-term relapse-free survival and toxicity rates in patients treated with hypofractionated intensity-modulated radiotherapy. ⋯ With a median follow-up of 66 months, the long-term results after high-dose hypofractionation are excellent. Late toxicity, urinary and rectal, has been limited. High-dose hypofractionation is an alternative dose escalation method in the treatment of localized prostate cancer.
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Int. J. Radiat. Oncol. Biol. Phys. · Dec 2005
Long-term follow-up of salvage radiotherapy in Hodgkin's lymphoma after chemotherapy failure.
To evaluate the long-term results of salvage radiotherapy (SRT) for Hodgkin's lymphoma after chemotherapy failure. ⋯ Salvage radiotherapy is effective for selected patients with Hodgkin's lymphoma after chemotherapy failure and should be considered for incorporation into salvage programs.