کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4302128 1612529 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Flow Through a Mechanical Distraction Enterogenesis Device: A Pilot Test1
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی عمل جراحی
پیش نمایش صفحه اول مقاله
Flow Through a Mechanical Distraction Enterogenesis Device: A Pilot Test1
چکیده انگلیسی

BackgroundWe tested the coupling portion of a prototype intraluminal distraction enterogenesis device to allow flow-through of simulated enteric contents (SEC) in both pig and human jejunum.Materials and MethodsSEC was made using 80% corn syrup. Ten-cm pig and human intestinal segments had a spoke-shaped 2.2 cm coupling adaptor sutured in place, intraluminally. The adaptor had a flow-through area of 33.6 mm2. SEC was pumped into the proximal part of the intestinal segment at 0.083 mL/s. The times to first passage of SEC through the coupler (first drop), 10 mL, and 20mL of SEC eluted from the distal end were recorded.ResultsMean time to first drop elution was 155 ± 38 s with pig, and 149 ± 22 s with human bowel (P = 0.8). This corresponded to a hydrostatic pressure of 37.5 mmHg before the initial drop passed through. Mean flow rates were 0.094 mL/s in pig bowel and 0.084 mL/s in human bowel (P = 0.09). To account for occlusion from luminal debris, a 75% occlusion of coupler holes was studied in the smaller pig bowel to investigate if reductions in flow-through area could be tolerated. Mean time to first drop increased slightly to 171±15 s, but the elution rate stayed the same (P = 0.5).ConclusionsAfter a physiologic level of initial pressure buildup allowing the first drop of SEC to pass the coupling adaptor, our prototype intestinal coupling adaptor did not obstruct flow-through of SEC, even after a 75% decrease in flow-through area. This type of attachment represents a viable approach to placing a device in-continuity without obstructing flow of enteric contents.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Surgical Research - Volume 170, Issue 2, October 2011, Pages 179–184
نویسندگان
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