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Radiother Oncol. 2005 Oct;77(1):88-95. Epub 2005 Jun 20.

Extracranial stereotactic radiotherapy for primary and metastatic renal cell carcinoma.

Author information

  • 1Department of General Oncology, Radiumhemmet, Karolinska Hospital, Stockholm, Sweden. peter.wersall@ks.se

Abstract

BACKGROUND AND PURPOSE:

We investigated the results of using stereotactic radiotherapy (SRT) for 58 patients with renal cell carcinomas (RCC) who were evaluated restrospectively for response rates, local control rates and side effects.

PATIENTS AND METHODS:

From October 1997 to January 2003, 50 patients suffering from metastatic RCC and eight patients with inoperable primary RCC received high-dose fraction SRT while placed in a stereotactic body-frame. The most common dose/fractionation schedules used were 8 Gyx4, 10 Gyx4 and 15 Gyx3 during approximately 1 week.

RESULTS:

SRT-treated tumor lesions regressed totally in 30% of the patients at 3-36 months, whereas 60% of the patients had a partial volume reduction or no change after a median follow-up of 37 months (SD 17.4) for censored and 13 months (SD 12.9) for uncensored patients. Side effects were generally mild. Of 162 treated tumors, only three recurred, yielding a local control rate of 90-98%, considering the 8% non-evaluable sites as defined here. For patients with one to three metastases, the time to new spread was 9 months.

CONCLUSIONS:

Our use of SRT for patients with primary and metastatic RCC yielded a high local control rate with low toxicity. Patients with one to three metastases, local recurrences after nephrectomy or inoperable primary tumors benefited the most, i.e. had fewer distant recurrences (13/23) and longer survival times compared to patients with >3 metastases (24/27 recurrences).

PMID:
15972239
[PubMed - indexed for MEDLINE]
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