Tumor Control and Overall Survival after Stereotactic Body Radiotherapy a Pulmonary Oligometastases from Colorectal Cancer: A Meta-Analysisopen access
- Choi, Hoon Sik; Jeong, Bae Kwon; Kang, Ki Mun; Jeong, Hojin; Song, Jin Ho; Ha, In Bong; Kwon, Oh-Young
- Issue Date
- KOREAN CANCER ASSOCIATION
- Colorectal neoplasms; Lung metastasis; Radiosurgery; Meta-analysis
- CANCER RESEARCH AND TREATMENT, v.52, no.4, pp.1188 - 1198
- Journal Title
- CANCER RESEARCH AND TREATMENT
- Start Page
- End Page
- Purpose In pulmonary oligometastases from colorectal cancer (POM-CRC), the primarily recommended local therapy is metastasectomy. Stereotactic body radiotherapy (SBRT) is another local therapy modality that is considered as an alternative option in patients who cannot undergo surgery. The purpose of this meta-analysis to demonstrate the effects of SBRT on POM-CRC by integrating the relevant studies. Materials and Methods The authors explored MEDLINE, EMBASE, Cochrane Library, Web of Science, and SCOPUS, and selected studies including patients treated with SBRT for POM-CRC and availability of local control (LC) or overall survival (OS) rate. In this meta-analysis, the effect of SBRT was presented in the form of the LC and OS rates for 1, 2, 3, and 5 years after SBRT as pooled estimates, and the frequency of pulmonary toxicity of grade 3 or higher after SBRT (PTG3-SBRT). Results Fourteen full texts among the searched 4,984 studies were the objects of this meta-analysis. The overall number of POM-CRC patients was 495 as per the integration of 14 studies. The pooled estimate LC rate at 1, 2, 3, and 5 years after SBRT was 81.0%, 71.5%, 56.0%, and 61.8%, and the OS rate was 86.9%, 70.1%, 57.9%, and 43.0%, respectively. The LC and OS rates gradually declined until 3 years after SBRT in a similar pattern. Among the 14 studies, only two studies reported PTG3-SBRT as 2.2% and 10.8%, respectively. Conclusion For POM-CRC, SBRT is an ablative therapy with a benefit on LC and OS rates and less ad- verse effects on the lung.
- Files in This Item
- There are no files associated with this item.
- Appears in
- College of Medicine > Department of Medicine > Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.