International journal of radiation oncology, biology, physics
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Int. J. Radiat. Oncol. Biol. Phys. · Sep 1998
Randomized Controlled Trial Clinical TrialPreoperative irradiation versus the use of nonsteroidal anti-inflammatory drugs for prevention of heterotopic ossification following total hip replacement: the results of a randomized trial.
Previous studies showed the effectiveness of early preoperative (4 h before operation) irradiation for prevention of heterotopic ossification (HO) after total hip replacement. This procedure can result in logistic problems, if there is a great distance between the department of radiotherapy and the orthopedic clinic. To avoid these organizational problems a prospective study was undertaken to analyze the effectiveness of preoperative irradiation on the day preceding surgery (16-20 h before operation). ⋯ Irradiation within 16-20 h before operation and use of NSAID (Voltaren resinat) can reduce the incidence of clinically relevant heterotopic ossification after total hip replacement.
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Int. J. Radiat. Oncol. Biol. Phys. · Sep 1998
Development of a head and neck companion module for the quality of life-radiation therapy instrument (QOL-RTI)
A review of available head and neck quality of life (QOL) instruments reveals them to inadequately address important radiation related side effects, or to be too cumbersome for routine use. The purpose of this study was to develop a head and neck disease specific module as a companion to the previously developed quality of life - radiation therapy instrument (QOL-RTI). The goal was to create a more complete, yet concise, head and neck site-specific module geared toward patients receiving radiation therapy for head and neck cancer. ⋯ These initial results suggest that the H&N companion module to the QOL-RTI is a valid and reliable tool that is responsive to changes in QOL during a course of H&N radiation therapy. This tool differs from existing H&N tools by including specific assessments of mucous, saliva, taste, cough, and local pain in a concise format. Significant changes in QOL scores were noted in all of these items. Evaluation of the tool in the post-treatment period (follow-up) is ongoing.
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Int. J. Radiat. Oncol. Biol. Phys. · Sep 1998
Failure patterns by prognostic group determined by recursive partitioning analysis (RPA) of 1547 patients on four radiation therapy oncology group (RTOG) studies in inoperable nonsmall-cell lung cancer (NSCLC).
To identify groups of patients who might benefit from more aggressive systemic or local treatment, based on failure patterns when unresectable NSCLC was treated by radiation therapy (RT) alone. ⋯ The data suggest that physiologic compromise from the intrathoracic disease in Class IV patients is sufficient to cause death before specific sites of failure became evident. Clinical investigations using treatments directed at specific sites of failure could lead to improved outcome for Class I, II and, possibly, Class III patients. Inclusion of Class IV patients in clinical trials may obscure outcomes.