• Int. J. Radiat. Oncol. Biol. Phys. · Sep 2005

    Long-term survival and functional status of patients with low-grade astrocytoma of spinal cord.

    • Clifford G Robinson, Richard A Prayson, Joseph F Hahn, Iain H Kalfas, Melvin D Whitfield, Shih-Yuan Lee, and John H Suh.
    • Department of Radiation Oncology, Brain Tumor Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA.
    • Int. J. Radiat. Oncol. Biol. Phys. 2005 Sep 1; 63 (1): 91-100.

    PurposeTo determine survival and changes in neurologic function and Karnofsky performance status (KPS) in a series of patients treated for low-grade astrocytoma of the spinal cord during the past two decades.MethodsThis study consisted of 14 patients with pathologically confirmed low-grade astrocytoma of the spinal cord who were treated between 1980 and 2003. All patients underwent decompressive laminectomy followed by biopsy (n = 7), subtotal resection (n = 6), or gross total resection (n = 1). Ten patients underwent postoperative radiotherapy (median total dose 50 Gy in 28 fractions). The overall survival, progression-free survival, and changes in neurologic function and KPS were measured.ResultsThe overall survival rate at 5, 10, and 20 years was 100%, 75%, and 60%, respectively. The progression-free survival rate at 5, 10, and 20 years was 93%, 80%, and 60%, respectively. Neither overall survival nor progression-free survival was clearly correlated with any patient, tumor, or treatment factors. Neurologic function and KPS worsened after surgery in 8 (57%) of 14 and 9 (69%) of 13 patients, respectively. At a mean follow-up of 10.2 years, neurologic function had stabilized or improved in 8 (73%) of 11 remaining patients, but the KPS had worsened in 5 (50%) of 10. Most patients who were employed before surgery were working at last follow-up.ConclusionPatients who undergo gross total resection of their tumor may be followed closely. Patients who undergo limited resection should continue to receive postoperative RT (50.4 Gy in 1.8-Gy fractions). The functional measures should be routinely evaluated to appreciate the treatment outcomes.

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