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01-11-2015 | Original Article

Role and Operative Technique of Portal Venous Tumor Thrombectomy in Patients with Pancreatic Neuroendocrine Tumors

Authors: Laura Prakash, Jeffrey E. Lee, James Yao, Priya Bhosale, Aparna Balachandran, Huamin Wang, Jason B. Fleming, Matthew H. G. Katz

Published in: Journal of Gastrointestinal Surgery | Issue 11/2015

Abstract

Introduction

Venous tumor thrombi have been reported in as many as 33 % of patients with pancreatic neuroendocrine tumors (pNETs). Surgical thrombectomy is often used to manage tumor thrombi that develop in association with cancers of the liver or kidney. We have likewise used thrombectomy to extract portal venous tumor thrombi in selected cases of pNET.

Methods

We describe all cases of portal venous thrombectomy that were performed at our institution between 2007 and 2014 and illustrate the thrombectomy techniques we used in detail. In addition, we report the results of a PubMed search for English-language articles that were published between 1990 and 2014 and that described surgical therapy for portal venous thrombus developing in association with pNETs.

Results

Among 245 patients with pNET that underwent pancreatectomy at our institution, 26 (11 %) patients required surgical management of tumor involvement of the portal vein or its tributaries concomitant with pancreatectomy, including 9 (3.8 %) patients who underwent portal venous tumor thrombectomy. Eight cases describing surgical management of tumor thrombus including two additional cases of portal venous tumor thrombectomy were identified in the medical literature. Among patients with pNET who underwent thrombectomy at our institution, all nine had non-functioning tumors and eight (89 %) had tumors of the body and/or tail of the pancreas. Six (67 %) were treated with systemic therapy prior to pancreatectomy. Seven (78 %) patients are alive at a median follow-up of 33 months (range 3 to 97).

Conclusion

Venous tumor thrombectomy may be used to safely and effectively extract thrombi from the portal venous system in selected patients with advanced pNET concomitant with pancreatectomy.

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Title: Role and Operative Technique of Portal Venous Tumor Thrombectomy in Patients with Pancreatic Neuroendocrine Tumors
Authors: Laura Prakash
Jeffrey E. Lee
James Yao
Priya Bhosale
Aparna Balachandran
Huamin Wang
Jason B. Fleming
Matthew H. G. Katz
Publication date: 01-11-2015
Publisher: Springer US
Published in: Journal of Gastrointestinal Surgery / Issue 11/2015
Print ISSN: 1091-255X
Electronic ISSN: 1873-4626
DOI: https://doi.org/10.1007/s11605-015-2914-0

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Role and Operative Technique of Portal Venous Tumor Thrombectomy in Patients with Pancreatic Neuroendocrine Tumors

Abstract

Introduction

Methods

Results

Conclusion

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Introduction

Methods

Results

Conclusion

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