Population-Based Study on Risk Factors for Tumor-Positive Resection Margins in Patients with Gastric Cancer.
Ann Surg Oncol
; 26(7): 2222-2233, 2019 Jul.
Article
em En
| MEDLINE
| ID: mdl-31011900
ABSTRACT
BACKGROUND:
Radical gastrectomy is the cornerstone of the treatment of locally advanced gastric cancer. This study was designed to evaluate factors associated with a tumor-positive resection margin after gastrectomy and to evaluate the influence of hospital volume.METHODS:
In this Dutch cohort study, patients with junctional or gastric cancer who underwent curative gastrectomy between 2011 and 2017 were included. The primary outcome was incomplete tumor removal after the operation defined as the microscopic presence of tumor cells at the resection margin. The association of patient and disease characteristics with incomplete tumor removal was tested with multivariable regression analysis. The association of annual hospital volume with incomplete tumor removal was tested and adjusted for the patient- and disease characteristics.RESULTS:
In total, 2799 patients were included. Incomplete tumor removal was seen in 265 (9.5%) patients. Factors associated with incomplete tumor removal were tumor located in the entire stomach (odds ratio (OR) [95% confidence interval (CI) 3.38 [1.91-5.96] reference gastroesophageal junction), cT3, cT4, cTx (1.75 [1.20-2.56], 2.63 [1.47-4.70], 1.60 [1.03-2.48], reference cT0-2), pN+ (2.73 [1.96-3.80], reference pN-), and diffuse and unknown histological subtype (3.15 [2.14-4.46] and 2.05 [1.34-3.13], reference intestinal). Unknown differentiation grade was associated with complete tumor removal (0.50 [0.30-0.83], reference poor/undifferentiated). Compared with a hospital volume of < 20 resections/year, 20-39, and > 39 resections were associated with lower probability for incomplete tumor removal (OR 0.56 [0.42-0.76] and 0.34 [0.18-0.64]).CONCLUSIONS:
Tumor location, cT, pN, histological subtype, and tumor differentiation are associated with incomplete tumor removal. The association of incomplete tumor removal with an annual hospital volume of < 20 resections may underline the need for further centralization of gastric cancer care in the Netherlands.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Gástricas
/
Adenocarcinoma
/
Hospitais com Alto Volume de Atendimentos
/
Hospitais com Baixo Volume de Atendimentos
/
Margens de Excisão
/
Gastrectomia
Tipo de estudo:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Aged
/
Female
/
Humans
/
Male
País como assunto:
Europa
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article