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Background <p>Surgery is considered a necessary treatment for gastric cancer (GC), but the extent of resection remains controversial. This study aimed to evaluate the efficacy of non-complete omentectomy (NCO) in GC patients undergoing radical gastrectomy.</p> Methods <p>We searched for studies of non-complete omentectomy versus complete omentectomy (CO) published before February 2024 from PubMed, Web of Science, and Cochrane Library databases. From the extracted clinical data, we compared surgical, survival, and recurrence outcomes between the two groups.</p> Results <p>Thirteen studies with a total of 4255 patients were included. The meta-analysis showed that compared with the CO group, the NCO group was associated with a lower overall recurrence rate, shorter operative time, and fewer postoperative complications. However, there was no significant difference in the number of harvested lymph nodes and peritoneal recurrence rate between the two groups. The NCO group was associated with the higher 3-year overall survival (OS) rate (RR = 0.95, 95% CI = 0.91–0.99, <i>P</i> = 0.02), 5-year OS rate (RR = 0.91, 95% CI = 0.87–0.96, <i>P</i> = 0.0006), and 5-year relapse-free survival (RFS) rate (RR = 0.93, 95% CI = 0.87–0.99, <i>P</i> = 0.02). However, it was not associated with the 3-year RFS rate (RR = 0.95, 95% CI = 0.89–1.01, <i>P</i> = 0.12) compared with the CO group.</p> Conclusion <p>Regarding surgical, survival, and recurrence outcomes, performing NCO versus CO during radical gastrectomy provides no significant advantage. However, future high-quality and well-designed randomized controlled trials are necessary to validate the results.</p>

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The efficacy of non-complete omentectomy in the radical gastrectomy for gastric cancer: a meta-analysis and systematic review

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月3日

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  • Chenglong Gao,
  • Wenchao Shi,
  • Baoming Zhang,
  • Qiang Tang,
  • Huiyu Chen,
  • Zengtao Bao

摘要

Background

Surgery is considered a necessary treatment for gastric cancer (GC), but the extent of resection remains controversial. This study aimed to evaluate the efficacy of non-complete omentectomy (NCO) in GC patients undergoing radical gastrectomy.

Methods

We searched for studies of non-complete omentectomy versus complete omentectomy (CO) published before February 2024 from PubMed, Web of Science, and Cochrane Library databases. From the extracted clinical data, we compared surgical, survival, and recurrence outcomes between the two groups.

Results

Thirteen studies with a total of 4255 patients were included. The meta-analysis showed that compared with the CO group, the NCO group was associated with a lower overall recurrence rate, shorter operative time, and fewer postoperative complications. However, there was no significant difference in the number of harvested lymph nodes and peritoneal recurrence rate between the two groups. The NCO group was associated with the higher 3-year overall survival (OS) rate (RR = 0.95, 95% CI = 0.91–0.99, P = 0.02), 5-year OS rate (RR = 0.91, 95% CI = 0.87–0.96, P = 0.0006), and 5-year relapse-free survival (RFS) rate (RR = 0.93, 95% CI = 0.87–0.99, P = 0.02). However, it was not associated with the 3-year RFS rate (RR = 0.95, 95% CI = 0.89–1.01, P = 0.12) compared with the CO group.

Conclusion

Regarding surgical, survival, and recurrence outcomes, performing NCO versus CO during radical gastrectomy provides no significant advantage. However, future high-quality and well-designed randomized controlled trials are necessary to validate the results.