ABSTRACT
Objective To investigate the prevention and treatment of delayed transverse myelitis caused by radiotherapy in patients with thoracic esophageal carcinoma . Methods Radical radiotherapy had been given to five patients (female 3,male 2) with thoracic esophageal carcinoma with delayed transverse myelitis developed 7 to 30 months after radiotherapy without any local recurrence.The study was done in an attempt to describe the clinical symptoms and signs.Analysis of causes was done to seek possible means of treatment and prevention.Results Once delayed transverse myelitis had happened,it was not possible to cure. In this group, four patients died 1-2 years after myelopathy had accurred , and one was alive with functional neurologic loss. Conclusions Delayed transverse myelitis is an uncommon and serious complication induced by irradiation. It is very difficult to manage and indicates a very poor prognosis. We recommend prucise radiation design and prudent performance for prevention.
ABSTRACT
Purpose:To evaluate the effects of surgery plus irradiation for olfactory neuroblastoma Methods:From January 1975 to February 1998 fourteen patients with olfactory neuroblastoma (kadish dassification:One case in stage A, 8 in the Stage B, 5 in stage C) were resected and giver radiotherapy to an average dose of 6000 cGy to primary lesions.Results:Six of the 14 patients have been living for 2—24 years. 8 died (5 of recurrence and 3 of distant metastasis)in 6 months to 4 years after diagnosis.Conclusions: There is a high rate of pathologic misdiagnosis in olfactory neuroblastoma. Immunohistologic examination and electron microscopic study are benifitial for diagnosis. Surgery plus irradiation is a suitable method for olfactory neuroblastoma. Radiotherapy is able to reduce local recurrence after surgery and increase resectability rate as well as to control distant metastasis.
ABSTRACT
Objective To develop the system of computer information processing for radiotherapy. Methods Visual Foxpro 5.0 was used to program the system through the model of client-server machine. SQL-server was used as the database-server.Results The main function of this system was management of the case data for radiotherapy and make plans for radiotherapy. Conclusion This system operates steadily with the data safe and reliable. It can be used extensively in clinical practice.