Tumor Control and Overall Survival after Stereotactic Body Radiotherapy for Pulmonary Oligometastases from Colorectal Cancer: A Meta-Analysis.
Cancer Res Treat
; 52(4): 1188-1198, 2020 Oct.
Article
en En
| MEDLINE
| ID: mdl-32718145
ABSTRACT
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 is to demonstrate the effects of SBRT on POM-CRC by integrating the relevant studies. MATERIALS ANDMETHODS:
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 adverse effects on the lung.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
1_ASSA2030
/
2_ODS3
/
6_ODS3_enfermedades_notrasmisibles
Problema de salud:
1_doencas_nao_transmissiveis
/
2_muertes_prematuras_enfermedades_notrasmisibles
/
6_colon_rectum_cancers
/
6_other_respiratory_diseases
/
6_trachea_bronchus_lung_cancer
Asunto principal:
Neoplasias Colorrectales
/
Radiocirugia
/
Neumonitis por Radiación
/
Neoplasias Pulmonares
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Systematic_reviews
Límite:
Humans
Idioma:
En
Revista:
Cancer Res Treat
Año:
2020
Tipo del documento:
Article