Pathological tumor infiltrative pattern and sites of initial recurrence in stage II/III gastric cancer: Propensity score matching analysis of a multi-institutional dataset

Autor:	Akiharu Ishiyama, Kiyoshi Ishigure, Nobuhiko Nakagawa, Mitsuro Kanda, Yoshinari Mochizuki, Daisuke Kobayashi, Kenta Murotani, Hitoshi Teramoto, Yasuhiro Kodera, Takahiro Asada, Toshifumi Murai, Chie Tanaka, Hidenobu Matsushita, Michitaka Fujiwara, Seiji Ito
Rok vydání:	2018
Předmět:	Male Cancer Research medicine.medical_specialty recurrence medicine.medical_treatment Gastroenterology 03 medical and health sciences 0302 clinical medicine Stomach Neoplasms Internal medicine parasitic diseases Medicine Humans Radiology Nuclear Medicine and imaging Stage (cooking) Risk factor Propensity Score Lymph node Pathological Peritoneal Neoplasms Aged Neoplasm Staging Original Research business.industry gastric cancer Hazard ratio Liver Neoplasms Cancer Clinical Cancer Research Middle Aged medicine.disease gastrectomy medicine.anatomical_structure Oncology 030220 oncology & carcinogenesis Lymphatic Metastasis Propensity score matching 030211 gastroenterology & hepatology Gastrectomy Female Neoplasm Recurrence Local business pathological tumor infiltrative pattern
Zdroj:	Cancer Medicine
ISSN:	2045-7634
Popis:	Background Advanced gastric cancer frequently recurs even after radical resection followed by adjuvant chemotherapy. The aim of this study was to evaluate the relationship between pathological infiltrative pattern (INF) and initial recurrence patterns in patients with stage II/III gastric cancer using a large multicenter database. Methods We retrospectively analyzed 1098 eligible patients who underwent curative gastrectomy for stage II/III gastric cancer at nine institutions between 2010 and 2014. Patients were categorized into the INF‐a/b and INF‐c groups and adjusted using propensity score matching. Results After propensity score matching, 686 patients (343 for each) were classified in the INF‐a/b and INF‐c groups. There were no significant differences in overall and disease‐free survival between the two groups. In the INF‐a/b group, frequencies of recurrence at the peritoneum, lymph node, and liver were equivalent. In contrast, the peritoneum was the most frequent site and accounted for 60% of the total recurrences in the INF‐c group. The cumulative peritoneal recurrence rate was significantly higher in the INF‐c group than in the INF‐a/b group (hazard ratio 2.47). INF‐c was a significant risk factor for peritoneal recurrences in most subgroups including age, sex, macroscopic type, tumor differentiation, and disease stage, and whether the postoperative treatment was given. Multivariate analysis identified INF‐c as an independent risk factor for peritoneal recurrences. The cumulative liver recurrence rate was significantly higher in the INF‐a/b group than in the INF‐c group (hazard ratio 3.44). Conclusions INF may represent an important predictor of recurrence patterns after curative resection of stage II/III gastric cancer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82cd689c45e3d535ab892991636b40b6 https://pubmed.ncbi.nlm.nih.gov/30411544 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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