Lymph node Yield in Apical Tissue During Triangle Operation While Doing Whipples Operation: An Observational Study

Introduction: The "TRIANGLE operation" involves the en-bloc removal of the tumor and the entire "mesopancreas" from the triangle-shaped space bounded by the superior mesenteric artery, coeliac trunk, and portal vein. This study assessed lymph node yield in apical tissue during t...

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Main Authors: Dhiresh Kumar Maharjan, Prashant Pudasaini, Bidur Prasad Acharya, Yugal Limbu, Roshan Ghimire, Prabin BIkram Thapa
Format: Article
Language:English
Published: Nepal Medical Association 2025-01-01
Series:Journal of Nepal Medical Association
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Online Access:https://www.jnma.com.np/jnma/index.php/jnma/article/view/8887
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author Dhiresh Kumar Maharjan
Prashant Pudasaini
Bidur Prasad Acharya
Yugal Limbu
Roshan Ghimire
Prabin BIkram Thapa
author_facet Dhiresh Kumar Maharjan
Prashant Pudasaini
Bidur Prasad Acharya
Yugal Limbu
Roshan Ghimire
Prabin BIkram Thapa
author_sort Dhiresh Kumar Maharjan
collection DOAJ
description Introduction: The "TRIANGLE operation" involves the en-bloc removal of the tumor and the entire "mesopancreas" from the triangle-shaped space bounded by the superior mesenteric artery, coeliac trunk, and portal vein. This study assessed lymph node yield in apical tissue during the triangle operation. Methods: An observational cross-section study was conducted for two years at the Department of Gastrointestinal and General Surgery at a tertiary care center of Nepal. from 15th March 2022 to 15th March 2024. The operative procedure included pancreaticoduodenectomy or Whipple’s operation. Total sampling was done. Postoperative outcome and lymph node yeild of the surgeries were studied. Ethical approval was taken from the Institutional Review Committee (Reference No-1102202204). Results: A total of 56 patients underwent pancreaticoduodenectomy along with a triangle operation. The mean age of the patients was 56.38±14.79 years. Male: Female ratio was 1.2:1. Mean preoperative BMI was 24.41±4.72. The mean total lymph node yield was 20.95±8.57. Nineteen patients had a positive lymph node yield in the triangle tissue. The mean triangle lymph node yield was 10.59±4.92, and the mean positive lymph node was 2.58 ±1.64. Among 56 patients, nine patients had both apical margin and the rest of the triangle tissue margin positive. Ten patients had negative apical tissue margins, but the rest of the triangle tissue was positive, whereas, in thirty-seven patients, both the apical tissue and the rest of the triangle circumferential resection margin tissue were negative. Conclusions: This study emphasizes the importance of the inclusion of apical tissue dissection at the confluence of SMA and coeliac trunk to achieve R0 resection. However, a long-term follow is awaited.
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institution Kabale University
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spelling doaj-art-354f3801739f4649b014dc1cd860b0302025-02-04T09:26:17ZengNepal Medical AssociationJournal of Nepal Medical Association0028-27151815-672X2025-01-016328210.31729/jnma.8887Lymph node Yield in Apical Tissue During Triangle Operation While Doing Whipples Operation: An Observational StudyDhiresh Kumar Maharjan0Prashant Pudasaini1Bidur Prasad Acharya2Yugal Limbu3Roshan Ghimire4Prabin BIkram Thapa5Department of Gastrointestinal and General Surgery, Kathmandu Medical College Teaching Hospital, Sinamangal, Kathmandu, NepalDepartment of Gastrointestinal and General Surgery, Kathmandu Medical College Teaching Hospital, Sinamangal, Kathmandu, NepalDepartment of Gastrointestinal and General Surgery, Kathmandu Medical College Teaching Hospital, Sinamangal, Kathmandu, NepalDepartment of Gastrointestinal and General Surgery, Kathmandu Medical College Teaching Hospital, Sinamangal, Kathmandu, NepalDepartment of Gastrointestinal and General Surgery, Kathmandu Medical College Teaching Hospital, Sinamangal, Kathmandu, NepalDepartment of Gastrointestinal and General Surgery, Kathmandu Medical College Teaching Hospital, Sinamangal, Kathmandu, Nepal Introduction: The "TRIANGLE operation" involves the en-bloc removal of the tumor and the entire "mesopancreas" from the triangle-shaped space bounded by the superior mesenteric artery, coeliac trunk, and portal vein. This study assessed lymph node yield in apical tissue during the triangle operation. Methods: An observational cross-section study was conducted for two years at the Department of Gastrointestinal and General Surgery at a tertiary care center of Nepal. from 15th March 2022 to 15th March 2024. The operative procedure included pancreaticoduodenectomy or Whipple’s operation. Total sampling was done. Postoperative outcome and lymph node yeild of the surgeries were studied. Ethical approval was taken from the Institutional Review Committee (Reference No-1102202204). Results: A total of 56 patients underwent pancreaticoduodenectomy along with a triangle operation. The mean age of the patients was 56.38±14.79 years. Male: Female ratio was 1.2:1. Mean preoperative BMI was 24.41±4.72. The mean total lymph node yield was 20.95±8.57. Nineteen patients had a positive lymph node yield in the triangle tissue. The mean triangle lymph node yield was 10.59±4.92, and the mean positive lymph node was 2.58 ±1.64. Among 56 patients, nine patients had both apical margin and the rest of the triangle tissue margin positive. Ten patients had negative apical tissue margins, but the rest of the triangle tissue was positive, whereas, in thirty-seven patients, both the apical tissue and the rest of the triangle circumferential resection margin tissue were negative. Conclusions: This study emphasizes the importance of the inclusion of apical tissue dissection at the confluence of SMA and coeliac trunk to achieve R0 resection. However, a long-term follow is awaited. https://www.jnma.com.np/jnma/index.php/jnma/article/view/8887apical tissueTriangle operationWhipples's operation
spellingShingle Dhiresh Kumar Maharjan
Prashant Pudasaini
Bidur Prasad Acharya
Yugal Limbu
Roshan Ghimire
Prabin BIkram Thapa
Lymph node Yield in Apical Tissue During Triangle Operation While Doing Whipples Operation: An Observational Study
Journal of Nepal Medical Association
apical tissue
Triangle operation
Whipples's operation
title Lymph node Yield in Apical Tissue During Triangle Operation While Doing Whipples Operation: An Observational Study
title_full Lymph node Yield in Apical Tissue During Triangle Operation While Doing Whipples Operation: An Observational Study
title_fullStr Lymph node Yield in Apical Tissue During Triangle Operation While Doing Whipples Operation: An Observational Study
title_full_unstemmed Lymph node Yield in Apical Tissue During Triangle Operation While Doing Whipples Operation: An Observational Study
title_short Lymph node Yield in Apical Tissue During Triangle Operation While Doing Whipples Operation: An Observational Study
title_sort lymph node yield in apical tissue during triangle operation while doing whipples operation an observational study
topic apical tissue
Triangle operation
Whipples's operation
url https://www.jnma.com.np/jnma/index.php/jnma/article/view/8887
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AT bidurprasadacharya lymphnodeyieldinapicaltissueduringtriangleoperationwhiledoingwhipplesoperationanobservationalstudy
AT yugallimbu lymphnodeyieldinapicaltissueduringtriangleoperationwhiledoingwhipplesoperationanobservationalstudy
AT roshanghimire lymphnodeyieldinapicaltissueduringtriangleoperationwhiledoingwhipplesoperationanobservationalstudy
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