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J Korean Soc Ther Radiol > Volume 12(3); 1994 > Article
Journal of the Korean Society for Therapeutic Radiology 1994;12(3): 393-400.
The Radiation Therapy for Spinal Cord Compression in Hematologic Malignancy
In Ah Kim, Ihl Bohng Choi, Su Mi Chung, Ki Mun Kang, Chul Seong Kay, Byung Ok Choi, Ji Young Jang, Kyung Sub Shinn, Chun Choo Kim
1Department of Therapeutic Radiology, Catholic University Medical College, St. Mary's Hospital, Seoul, Korea.
2Department of Internal Medicine, Catholic University Medical College, St. Mary's Hospital, Seoul, Korea.
Spinal cord compression, an oncologic emergency, is a rare complication of hematologic malignancy. Our experience was obtained with a series 32 patients following retrospective analysis for assessing the role of radiation therapy and identifying the prognostic factors affecting on treatment outcome. Diagnosis was usually made by means of radiologic study such as myelography or computerized tomography (CT) or magnetic resonance imaging (MRI) and neurologic examination. Five cases were diagnosed by subjective symptom only with high index of suspicion. In 31 cases, the treatment consisted in radiation therapy alone and the remained one patient had laminectomy before radiation therapy because of diagnostic doubts. Total treatment doses ranged from 800 cGy to 4000 cGy with median of 2999 cGy. Initially large fraction size more than 250 cGy were used in 13 patients with rapidly progressed neurologic deficit. The clinical parameters considered in evaluating the response to treatment were backache, motor-sensory performance and sphincter function. Half on all patients showed good response. Partial response and no response were noted in 37.5% and 12.5%, respectively. Our results showed higher response rate than those of other solid tumor series. The degree of neurologic deficit an that time of diagnosis was the most important predictor of treatment outcome. The elapsed time from development of symptoms to start of treatment was significantly affected on the outcome. But histology of primary tumor, total dose and use of initial large fraction size were not significantly affect on the outcome. These results confirmed the value of early diagnosis and treatment especially in radiosensitive hematologic malignancy.
Key Words: Spinal cord compression, Hematologic malignancy, Radiation therapy
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