Surgery for gastrointestinal stromal tumors: state of the art of laparoscopic resection and surgery for M1 tumors

Background: The principles of surgery for primary gastrointestinal stromal tumor (GIST) are resection with clear margins without lymphadenectomy, thus enabling organ-preserving resection in many cases. Tumor rupture needs to be avoided, because it entails peritoneal sarcomatosis. Given these precond...

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Bibliographic Details
Main Authors: Ronellenfitsch, Ulrich (Author) , Hohenberger, Peter (Author)
Format: Article (Journal)
Language:English
Published: October 3, 2018
In: Visceral medicine
Year: 2018, Volume: 34, Issue: 5, Pages: 367-374
ISSN:2297-475X
DOI:10.1159/000491799
Online Access:Verlag, Volltext: https://doi.org/10.1159/000491799
Verlag, Volltext: https://www.karger.com/Article/FullText/491799
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Author Notes:Ulrich Ronellenfitsch, Peter Hohenberger

MARC

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520 |a Background: The principles of surgery for primary gastrointestinal stromal tumor (GIST) are resection with clear margins without lymphadenectomy, thus enabling organ-preserving resection in many cases. Tumor rupture needs to be avoided, because it entails peritoneal sarcomatosis. Given these preconditions, there is a rationale for laparoscopic resection of primary GIST. In metastatic GIST, surgery cannot achieve cure, but constitutes an important cornerstone of treatment. Resection can be performed either for residual lesions in responding patients, for focally progressive lesions, or as palliative measure in generalized progression. Methods: Selective literature review. Results: There is ample evidence on laparoscopic resection of gastric GIST, but none from randomized trials. The studies show favorable perioperative outcomes and suggest adequate oncological results; however, a direct comparison to open resection is difficult. For surgery in M1 stages, survival outcomes are better for resection in generalized response than in focal progression. Perioperative morbidity is acceptable. Surgery in generalized progression does not prolong survival and bears relevant morbidity risks. Conclusion: Laparoscopy seems an adequate surgical approach for primary gastric GIST, as long as the surgical principles relevant for this entity are respected. For other tumor sites, there is no sufficient evidence available. In M1 stages, selected patients may benefit from surgery. Survival differences between resection at different stages probably mirror the biology of the disease rather than the effect of the timing of the operation. 
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