Long-term outcomes after prophylactic bursectomy in patients with resectable gastric cancer: Final analysis of a multicenter randomized controlled trial

Osaka University Clinical Research Group for Gastroenterological Study

研究成果: Contribution to journalArticle

18 被引用数 (Scopus)

抄録

Background Bursectomy, a traditional operative procedure to remove the peritoneal lining covering the pancreas and the anterior plane of the transverse mesocolon, has been performed for serosa-positive gastric cancer in Japan and Eastern Asia. We conducted a multicenter, randomized, controlled trial to demonstrate the noninferiority of the omission of bursectomy. Methods Between July 2002 and January 2007, 210 patients with cT2-3 gastric adenocarcinoma were randomized intraoperatively to D2 gastrectomy with or without bursectomy. The primary endpoint was overall survival (OS). We provide the results of the final analysis of the complete 5-year follow-up data. Results After the median follow-up of 80 months, 5-year OS was 77.5% for the bursectomy group and 71.3% for the nonbursectomy group (2-sided P = .16 for superiority; 1-sided P = .99 for noninferiority). The hazard ratio for death in the nonbursectomy group was 1.40 (95% CI, 0.87-2.25). The 5-year recurrence-free survivals were 73.7% and 66.6% in the bursectomy and nonbursectomy groups, respectively (2-sided P = .33 for superiority; 1-sided P = .99 for noninferiority). Cox multivariate analysis revealed that bursectomy was an independent prognostic factor of good OS (P = .033). Subgroup analysis showed a trend toward improved survival after bursectomy for tumors in the middle or lower third of the stomach and for pathologically serosa-positive tumors. Conclusion The final analysis could not demonstrate the noninferiority of the omission of bursectomy. Bursectomy should not be abandoned as a futile procedure.

本文言語英語
論文番号4050
ページ(範囲)1099-1105
ページ数7
ジャーナルSurgery (United States)
157
6
DOI
出版ステータス出版済み - 6 1 2015

All Science Journal Classification (ASJC) codes

  • Surgery

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