Short-term outcomes of three- and two-field lymphadenectomy with minimally invasive esophagectomy for esophageal cancer: a propensity score-matching analysis.
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Abstract
Background: Whether patients can benefit from three-field lymphadenectomy (3-FL) in minimally invasive esophagectomy (MIE) remains unclear. This study retrospectively compared short-term outcomes between 3-FL and two-field lymphadenectomy (2-FL) in MIE for patients with esophageal cancer (EC) and aimed to evaluate the clinical significance of 3-FL.
Methods: There were 284 patients enrolled in the study (124 patients with 3-FL and 160 patients with 2-FL). The cases were matched based on their propensity scores using a matching ratio of 1:1, the nearest neighbor matching protocol, and a caliper of 0.02. Patients were propensity-score matched for sex, cancer location, Age-adjusted Charlson Comorbidity Index (ACCI), and neoadjuvant treatment. The short-term outcomes were postoperative complications, operation characteristics, pathology results and postoperative hospital stay.
Results: There were no significant differences in intraoperative hemorrhage, postoperative hospital stay, or postoperative complications between the 2-FL and 3-FL groups. The operation time of the two groups was significantly different (227.1±46.2 vs. 248.5±45.9 min, P=0.001); the operation time of the 3-FL group was about 20 minutes longer than that of the 2-FL group. The number of lymphatic nodes (LNs) obtained in the 3-FL group was significantly higher than that in the 2-FL group (31.3±12.9 vs. 54.6±18.0, P<0.001). Pathological N stage was also significantly different (P=0.002); the 3-FL group was more advanced than the 2-FL group.
Conclusions: Compared to 2-FL MIE, 3-FL MIE does not increase postoperative complications, can obtain more LNs, and improves the accuracy of tumor LN staging.
期刊介绍：
Translational Cancer Research (Transl Cancer Res TCR; Print ISSN: 2218-676X; Online ISSN 2219-6803; http://tcr.amegroups.com/) is an Open Access, peer-reviewed journal, indexed in Science Citation Index Expanded (SCIE). TCR publishes laboratory studies of novel therapeutic interventions as well as clinical trials which evaluate new treatment paradigms for cancer; results of novel research investigations which bridge the laboratory and clinical settings including risk assessment, cellular and molecular characterization, prevention, detection, diagnosis and treatment of human cancers with the overall goal of improving the clinical care of cancer patients. The focus of TCR is original, peer-reviewed, science-based research that successfully advances clinical medicine toward the goal of improving patients'' quality of life. The editors and an international advisory group of scientists and clinician-scientists as well as other experts will hold TCR articles to the high-quality standards. We accept Original Articles as well as Review Articles, Editorials and Brief Articles.
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