Abstract
Aim: To investigate the flow and mixing at the duodenal stump after gastric resection, a computer simulation was implemented. Methods: Using the finite element method, two different Billroth? procedure cases (A and B) were modeled. Case A was defined with a shorter and almost straight duodenal section, while case B has a much longer and curved duodenal section. Velocity, pressure and food concentration distribution were determined and the numerical results were compared with experimental observations. Results: The pressure distribution obtained by numerical simulation was in the range of the recorded experimental results. Case A had a more favorable pressure distribution in comparison with case B. However, case B had better performance in terms of food transport because of more continual food distribution, as well as better emptying of the duodenal section. Conclusion: This study offers insight into the transport process within the duodenal stump section after surgical intervention, which can be useful for future patient-specific predictions of a surgical outcome.
Original language | English (US) |
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Pages (from-to) | 1990-1998 |
Number of pages | 9 |
Journal | World Journal of Gastroenterology |
Volume | 15 |
Issue number | 16 |
DOIs | |
State | Published - Apr 28 2009 |
Keywords
- Billroth II
- Computer simulation
- Duodenal stump
- Gastric resection
- Pressure distribution
ASJC Scopus subject areas
- Gastroenterology