Spine, 19% cervical spine, 11% sacrum, 10% intracranial, 9% head and neck, 6% lung/mediastinum, 3% pelvis, and 2% other. 67% of lesions were metastatic, and 33% primary. The median number of fractions was 1 (range 1-5). Prior median radiation dose received was 43. 7 gy (range:7. 2-120). Median follow up was 1 month (range:1-26) after completion of srs. viagra generic Acute toxicity was graded using the national cancer institute common toxicity criteria (ctc) scale. Symptomatic response was documented as “improved,”“stable,” or “progression. ” in asymptomatic patients, radiological response was noted by serial comparison of pre- and post-srs treatment imaging studies. Results: no patients experienced a significant (defined as grade 3, 4, or 5) ctc toxicity. Three patients died prior to scheduled follow-up from non-treatment related causes. Response rates to srs from the patients assessed at short-term follow-up were: 62. 7% improved, 29. cheap viagra online 3% stable, and 8% progression. Conclusions: in this large clinical series, cyberknife srs was safe and effective. Cyberknife srs resulted in: (1) good palliation, and (2) minimal toxicity, with a (3) very short duration of treatment. cheap viagra Longer follow-up will be needed to fully assess potential late toxicity and response. This technique may offer an important therapeutic option to patients that would otherwise be poor candidates for conventional rt.   associated presentation(s):      1. can you buy viagra over counter germany Cyberknife stereotactic radiosurgery: response and toxicity in a series of 291 lesions. viagra for sale south africa Meeting: 2004 asco annual meeting presenter: anurag agarwal session: health services research (general poster session)   other abstracts in this sub-category:      1. Preliminary evidence of relationship between genetic markers and oncology patient quality of life (qol). Meeting: 2004 asco annual meeting   abstract no: 5   first author: j. A. viagra coupon Sloan category: health services research - outcomes research      2. how many mg viagra should i take Impact of patient-specific factors in the development of radiation (rt)-associated cardiac perfusion defects. Meeting: 2004 asco annual meeting   abstract no: 673   first author: r. G. Prosnitz category: health services research - outcomes research      3. Analysis of over 2,400 modern phase i cancer trials: composition, outcomes, and use of surrogate endpoints. Meeting: 2004 asco annual meeting   abstract no: 2084   first author: t. G. Roberts cate. order viagra online best prices for viagra in canada  


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