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http://dx.doi.org/10.3795/KSME-B.2012.36.7.697

Study on Reflux According to Pyloroplasty and Path of Gastric Graft in Esophageal Reconstruction  

Choi, Sung-Hoon (Graduate School of Energy and Environment, Seoul National University of Science and Technology)
Sung, Jae-Yong (Dept. of Mechanical Engineering, Seoul National University of Science and Technology)
Lee, Jae-Ik (Dept. of Thoracic and Cardiovascular Surgery, Gachon University Gil Hospital)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.36, no.7, 2012 , pp. 697-703 More about this Journal
Abstract
In this study, duodenogastric reflux has been investigated according to pyloroplasty and the path of the gastric tube in esophageal reconstruction. The paths of the gastric graft (front and rear paths) were determined from the CT images of ten patients, and the gastric tube model was constructed using an RP technique. The gastric tubes were connected to the pylorus models with and without pyloroplasty. Various distal pressures and pulse widths were applied, and the volume and maximum height of the refluxate were measured. The results show that the volume and height of the refluxate increase with the distal pressure, and the front path leads to a smaller volume and lesser height of the refluxate than the rear path if pyloroplasty is conduced. The volume of the refluxate is markedly increased by a larger pulse width, but its effect on the maximum height depends on whether pyloroplasty is conducted.
Keywords
Reflux; Esophageal Reconstruction; Pyloroplasty; Gastric Graft;
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