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Utilizing bifurcated allogeneic vein grafts: a novel approach for preventing sinistral portal hypertension following pancreaticoduodenectomy. A 10-year before and after study

  • 0Department of Thoracic Surgery, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
International Journal of Surgery (london, England) +

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July 12, 2024

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July 12, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

Reconstructing the spleno-mesenterico-portal confluence with allogeneic vein grafts effectively prevents sinistral portal hypertension after pancreaticoduodenectomy for pancreatic cancer. This method improves patient outcomes compared to splenic vein ligation.

Area Of Science

  • Surgical Oncology
  • Vascular Surgery
  • Gastroenterology

Background

  • Sinistral portal hypertension (SPH) is a potential complication following pancreaticoduodenectomy (PD) with spleno-mesenterico-portal (S-M-P) confluence resection in pancreatic cancer patients.
  • Effective prevention strategies for SPH are crucial for improving patient outcomes after complex pancreatic surgery.

Purpose Of The Study

  • To evaluate the efficacy of bifurcated allogeneic vein replacement in preventing SPH after PD with S-M-P confluence resection.
  • To compare the outcomes of allogeneic vein reconstruction versus splenic vein ligation for SPH prevention.

Main Methods

  • Retrospective analysis of 66 patients undergoing PD with S-M-P resection, comparing allogeneic vein reconstruction (n=43) with splenic vein ligation (n=23).
  • Prospective data collection from 15 patients undergoing splenic vein reconstruction.
  • Statistical analysis included log-rank tests and univariate/multivariate analyses of clinical outcomes.

Main Results

  • The allogeneic vein reconstruction group showed significantly better outcomes regarding platelet count, spleen volume, spleen volume ratio, and esophagogastric varices (EGV) grade at 1, 3, and 6 months post-operation compared to the ligation group.
  • The incidence of SPH at 6 months was significantly lower in the reconstruction group (8.1%) than in the ligation group (36.4%).
  • In the prospective cohort, the incidence of SPH following splenic vein reconstruction was 6.7%.

Conclusions

  • Reconstruction of the S-M-P confluence using a bifurcated allogeneic vein graft is a superior method for preventing SPH in advanced pancreatic cancer patients undergoing PD.
  • This reconstructive approach does not compromise overall surgical outcomes and effectively mitigates the risk of SPH.