Predictors of Local Control for Stereotactic Ablative Radiotherapy (SAbR) in Pulmonary Oligometastases from Gastrointestinal Malignancies.
Anticancer Res
; 40(10): 5901-5907, 2020 Oct.
Article
en En
| MEDLINE
| ID: mdl-32988921
ABSTRACT
BACKGROUND/AIM:
To assess predictors of local control (LC) for stereotactic ablative radiotherapy (SAbR) in pulmonary oligometastatic disease (OMD) from gastrointestinal (GI) malignancies. PATIENTS ANDMETHODS:
Patients with pulmonary OMD treated with SAbR from January 2016 to December 2018 were included in this observational analysis. Primary endpoint was LC. Uni- and multivariate analyses to assess variable correlations were conducted.RESULTS:
Thirty-seven patients and 59 lung metastases were evaluated. The delivered dose was 30-60 Gy in 3-8 fractions. After a median follow-up of 23.0 months (range=6.3-50.4 months), LC rate at 1/2 years was 89.7%/85.0%, and increased to 96.0%/91.0% for lesions treated with a biologically effective dose (BED10) ≥100 Gy (p=0.03). RECIST response at 6 months was predictive for LC (p=0.002).CONCLUSION:
SAbR is an effective option for pulmonary OMD from GI malignancies. A BED10 ≥100 Gy and radiological response at 6 months can affect LC.Palabras clave
Texto completo:
1
Colección:
01-internacional
Asunto principal:
Neoplasias Gastrointestinales
/
Neoplasias Pulmonares
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
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Aged
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Aged80
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Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Anticancer Res
Año:
2020
Tipo del documento:
Article
País de afiliación:
Italia