Percutaneous Vertebroplasty in Spinal Metastasis and Myeloma:25 Cases Experience

No abstract available.

Epidural Granulocytic Sarcoma Causing Cord Compression at Thoracic Region in Acute Myelogenous Leukemia: A Case Report

No abstract available.

Clinical Analysis of 178 Metastatic Brain Tumors

OBJECTIVE: A retrospective clinical analysis for metastatic brain tumors was undertaken to understand demographic feature, to determine the survival rate, prognostic factors and to decide the role of surgery. PATIENTS AND METHODS: From 1987 to 1994, 178 patients with brain metastases were treated at our hospital. Data regarding the primary disease and characteristics of brain metastases were retrospectively collected. We used Kaplan-Meier method to assess survival rate, and log-rank test to compare survival rates between subgroups. RESULTS: The most common age at the time of diagnosis was sixth and seventh decade(62%). The male to female ratio was 97:81. The supratentorial lesions were in 128(77%, n=67) and multiple lesions were in 84(55%, n=52). The most common primary cancer was lung cancer(80, 45%), and metastases of unknown origin(28, 16%), breast(27, 15%), head and neck(11, 6%), colorectal cancer(7, 4%), and stomach cancer(6, 3%). The time to metastasis was shortest in lung cancer(15 months), and longest in head and neck cancer(61 months). The overall 1 year survival rate(1YSR) was 25.4% and median survival time(MST) was 5.6 months. There was no statistically significant difference in MST and 1YSR between single and multiple metastases. The 1YSR of metastatic brain tumor from head and neck cancer was 62.5% and that from breast, lung, and GI tract was 37.7%, 25.7%, and 8.3% respectively. The overall 1YSR and MST of resected group in single metastasis(n=0, resection plus whole brain radiation therapy; WBRT) were 33.3% and 6.6 months, and those of non-resected group(n=5, WBRT) were 31.5% and 5.6 months. The 1YSR and MST of resected group in single metastasis from lung cancer(n=) were 37.5% and 8.4 months, and those of non-resected group(n=6) were 25% and 4.8 months. But there were no statistically significant differences. Karnofsky performance scale score was improved in 37% of resected group, compared with 24% of non-resected group. CONCLUSION: Surgical removal of metastatic brain tumor in selected patients results in increased survival time and better quality of life. For the statistical significance, multi-institutional well-designed prospective randomized study is needed.

Clinical Analysis on Open Thoracic Cordotomy of the Cancer Pain

Patients with pain syndromes resulting from recurrent or metastatic cancer should be evaluated carefully to determine the cause of their pain and the need for appropriate antitumor treatment. The most effective ablative pain control procedure at the current time is cordotomy, which is indicated in patients with unilateral pain. The authors results of 12 antero-lateral thoracic cordotomies performed for intractable cancer pain between 1996-1998. The follow-up of these patients was continued for at least 12 months or until death to determine the late success of this procedure. Excellent surgical results were obtained in 100% after one week and in 50% in 6 months after operation. The operation was considered to be successful for patients with malignant disease of short life expectancy.

One-Stage Vertebral Reconstruction Combined with Posterior Instrumentation by Posterolateral Approach for Spinal Metastasis

The authors present a series of 12 patients who underwent one-stage spondylectomy, vertebral reconstruction, posterior segmental stabilization for malignant metastatic disease. Major indication for this approach includes three column involvement or untolerable thoracotomy. This operative method involved the spondylectomy via a bilateral transpedicular or unilateral extracavitary approach, vertebral body reconstruction with methlymethacrylate (MMA), and posterior stabilization with sublaminar wiring in one stage. Postoperatively, all patients improved neurologically. Average neurologic improvement was 1.5 Frankel grade. Pain relief was obtained in all patients. Recovery of sphincter change was obtained 7(88%) of the 8 patients. One patient died postoperatively due to pneumonia. Spinal alignment was maintained in all. The major advantage of this approach is that circumferential decompression of the spine and stabilization can be obtained safely by one stage.

Surgical Treatment of Metastatic Spinal Tumor

The authors present a series of 35 patients who underwent operation for metastatic spinal tumor. Patients were operated via anterior, posterior or posterolateral and combined anterior-posterior approach. The anterior approach was used in cases where there was no involvement of the posterior column, tolerable of a thoracotomy and involvement of three or less adjacent vertebral bodies. The posterior or posterolateral approach was used in cases with involvement of the posterior column, disease at two seperated locations, intolerable of a thoracotomy and involvement of three columns. The combined anterior-posterior approach was used when it was not enough to obtain stabilization with anterior or posterior approach alone and expected greater than 1 year life expectancy. Twenty-five(89%) of the 28 patients improved neurologically following surgery. Average neurologic improvement was 1.3 Frankel grade. Pain relief was obtained in twenty-six(93%) of the 28 patients. Recovery of spincter change was obtained twelve(80%) of the 15 patients. Two patients died postoperatively due to DIC and pneumonia. Prior to operation, selective spinal angiography and embolization were performed in nine patients with metastases from renal carcinoma, thyroid cancer and hepatoma to reduce intraoperative bleeding. The authors believe that the choice of surgical approach has to be individualized for each patient depending on extent and location of the tumor, general condition of patient, goal of therapy and life expectancy.

Three Cases of Primary Spinal Malignant Schwannomas: Case Reports

Malignant peripheral nerve sheath spinal tumours are relatively rare. A primary spinal location at the first onset is rarely reported in the literature, thus the clinical features and therapeutic results of these spinal malignant tumours are not defined. We describle three patients with primary spinal malignant schwannomas and stress the surgical mananement of these cases.

A Clinical Analysis of Metastatic Spine Tumors: Analysis of Prognostic Factors and Scoring System for Prognostic Evaluation

The purpose of treatment for metastatic spine tumor is to improve the quality of life. So, it is very important to carefully select the surgical candidates to prevent unnecessary surgery-related morbidity and mortality. For this purpose, the authors have surveyed 200 cases of spinal metastasis treated by radiotherapy alone or radiotherapy plus surgery to determine prognostic factors. In this study, we attempted to examine retrospectively the four factors, e.g.,primary tumor, pretreatment neurologic status, general condition and degree of cancer extension, affecting the prognosis of metastatic spine tumors. Each factor was ranked from 1 to 3 points according to the severity and the total score for each patient was obtained by adding the these points. As a result, it was found that the total score was highly correlated to the survival period. While the patients with a total score of 6 or lower survived 100 days or less, those of 10 or higher survived 300 days or more on average. Therefore, authors believe this scoring system would be helpful to the determine treatment modalities and the selection of the most suitable operative procedures.