Pancreatoduodenectomy combined with portal-superior mesenteric vein resection and reconstruction with interposition grafts for cancer: a meta-analysis

  • Song W
  • Yang Q
  • Chen L
  • et al.
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Abstract

The use of interposition grafts for portal-superior mesenteric vein (PV-SMV) reconstruction during pancreatoduodenectomy (PD) with venous resection (VR) for localized periampullary tumors is a controversial topic. The present meta-analysis aimed to evaluate the perioperative and long-term outcomes in patients who received interposition grafts for PV-SMV reconstruction after PD with VR. The correlative databases were systematically searched to identify relevant trials comparing vein grafts versus no vein grafts during PD with VR. 14 studies including 257 patients with vein grafts and 570 patients without vein grafts were extracted. The meta-analysis indicated no difference in perioperative morbidity, mortality, or thrombosis between the two groups, but the vein graft group was associated with a significantly increased venous thrombosis rate (≥ 6 months) (odds ratio [OR] = 2.75; 95% confidence interval [CI] , 1.32-5.73; P = .007). The autologous vein group subgroup analysis also revealed a significantly increased vein thrombosis rate (OR = 3.13; 95% CI, 1.45-6.76; P = .004) between the two groups. Meanwhile, the prosthetic vein group subgroup analysis indicated no difference. Additionally, the oncological value of vein grafts during PD for pancreatic cancer survival was analyzed and revealed no difference in 1-year, 3-year, or 5-year survival between the two groups. Using interposition grafts for PV-SMV reconstruction is safe and effective, and has perioperative outcomes and long-term survival rates compared to those with no vein grafts during PD with VR. However, the lower long-term vein patency rate in patients with vein grafts indicate that interposition grafts may be more likely to lose function. Copyright: Song et al.

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Song, W., Yang, Q., Chen, L., Sun, Q., Zhou, D., Ye, S., … Wang, W. (2017). Pancreatoduodenectomy combined with portal-superior mesenteric vein resection and reconstruction with interposition grafts for cancer: a meta-analysis. Oncotarget, 8(46). https://doi.org/10.18632/oncotarget.20866

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