International journal of radiation oncology, biology, physics
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Int. J. Radiat. Oncol. Biol. Phys. · Dec 1993
Effect of irradiation on healing of newly made colonic anastomoses in the rat.
Short-term effects of radiotherapy on the healing process of newly made colonic anastomoses are investigated by measuring the anastomotic strength in a rat model. ⋯ These data suggest that the application of a single dose of irradiation (20 and 25 Gy) on colonic anastomoses given in a direct postoperative or intraoperative model has no measurable side effect on the early healing of newly made colonic anastomoses. Direct postoperative external irradiation results in unwanted side effects in the adjacent bowel.
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Int. J. Radiat. Oncol. Biol. Phys. · Dec 1993
Lhermitte's sign: incidence and treatment variables influencing risk after irradiation of the cervical spinal cord.
Lhermitte's sign is a relatively infrequent sequela of irradiation of the cervical spinal cord. In this study, we sought to determine whether various treatment parameters influenced the likelihood of developing Lhermitte's sign. ⋯ An increased risk of developing Lhermitte's sign was demonstrated for patients who received either > or = 200 cGy per fraction (one fraction per day) or > or = 5000 cGy total dose to the cervical spinal cord.
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Int. J. Radiat. Oncol. Biol. Phys. · Oct 1993
Case ReportsLocal recurrence versus new primary: clinical analysis of 82 breast relapses and potential applications for genetic fingerprinting.
The purpose of this study was to perform a detailed clinical pathological analysis of breast relapses in patients treated with conservative surgery and radiation therapy in an effort to classify those relapses as true local recurrences or second primary tumors, and to assess the prognostic and therapeutic implications of such a classification system. ⋯ Based on the clinical and pathological criteria outlined, it appears that a significant portion of patients experiencing a relapse in the conservatively treated breast may have new primary tumors as opposed to true local relapses. Distinction between a true recurrence and a new primary tumor may have significant prognostic implications. Uncertainties associated with the clinical and pathological criteria are presented and further investigations with genetic fingerprinting techniques to establish the clonality of breast relapses are presented and discussed.
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Int. J. Radiat. Oncol. Biol. Phys. · Oct 1993
Comparative StudyBreast-conserving surgery and definitive radiation: a comparison between quadrantectomy and local excision with special focus on local-regional control and cosmesis.
Breast-conserving surgery and definitive radiation as an alternative to mastectomy is a well-accepted practice. However, there is limited information addressing the extent of surgical resection. The purpose of this study is to compare the outcome of patients treated with local excision or quadrantectomy, followed by definitive radiation with particular emphasis on local-regional control and cosmetic results. ⋯ Conservative surgery consisting of local excision or quadrantectomy resulted in comparable local-regional control, overall, disease-free and distant disease-free survival, although cosmetic results were superior in the local excision group.