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Identifying Dysregulated Genes Induced by Kaposi's Sarcoma-associated Herpesvirus (KSHV)
Published on: September 14, 2010
A dose-response analysis for classical Kaposi's sarcoma management by radiotherapy
Kaan Oysul1, Murat Beyzadeoglu, Serdar Surenkok
1Department of Radiation Oncology, Gulhane Military Medical School, Ankara 06018, Turkey. kaanoysul@yahoo.com
Saudi Medical Journal
|June 4, 2008
Summary
Radiotherapy doses of 20 Gy or higher show superior complete response rates for classical Kaposi's sarcoma (CKS). Doses below 20 Gy were less effective, though overall response rates were similar. Side effects were acceptable.
Area of Science:
- Oncology
- Radiation Oncology
- Dermatology
Background:
- Classical Kaposi's sarcoma (CKS) is a malignancy requiring effective treatment strategies.
- External beam radiotherapy is a common modality for CKS management.
- Understanding the optimal radiation dose is crucial for maximizing treatment efficacy.
Purpose of the Study:
- To investigate the dose-response relationship of external beam radiotherapy in patients with classical Kaposi's sarcoma.
- To determine if higher radiation doses (normalized total dose 2Gy [NTD2Gy] ≥20 Gy) yield better outcomes than lower doses (<20 Gy).
Main Methods:
- Retrospective analysis of 18 CKS patients treated between 1993 and 2004.
- Evaluation of overall response rates based on NTD2Gy categories: <20 Gy, 20 Gy, and >20 Gy.
- Comparison of complete and partial response rates between NTD2Gy <20 Gy and NTD2Gy ≥20 Gy groups.
Main Results:
- Overall response rates at 12 months were high across all dose groups (88% to 97%), with no statistically significant differences.
- Complete response rates at 12 months were significantly higher for NTD2Gy ≥20 Gy (93.2%) compared to NTD2Gy <20 Gy (64%) (p=0.001).
- Late radiation side effects, including fibrosis and edema, were generally acceptable.
Conclusions:
- Radiotherapy doses of 20 Gy or higher are more effective in achieving complete response rates for CKS compared to doses below 20 Gy.
- External beam radiotherapy with NTD2Gy ≥20 Gy is an effective management strategy for CKS.
- The findings support optimizing radiation dosage for improved CKS treatment outcomes.
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