Guest guest Posted June 22, 2003 Report Share Posted June 22, 2003 Since the length of the intestinal tract varies from 18' to 20', measuring the length of tract bypassed is not a very accurate method to estimate how long the resulting common channel, the part where nutrients and digestive juices mix, will be. The only clinical definition, of which I am aware, is based on length of the remaining common channel regardless of the amount of intestinal tract that has been bypassed. In, Kushner, R. MD, Managing the Obese Patient After Bariatric Surgery: A Case Report of Severe Malnutrition and Review of the Literature, Journal of Parenteral and Enternal Nutrition, Vol 9 Issue 2, 2000, pp 126-132, it is stated that if the remaining jejunum is 101 " + (255 cm+) in length, it is referred to as being a proximal RNY. A remaining jejunum length of 61 " to 100 " (153 to 254 cm) is a medial RNY. A remaining jejunum length of 40 " to 60 " (101 to 152 cm) is a distal RNY. The word " jejunum " is used as a catch-all for the combined length of jejunum and ileum. After a distal procedure, only part of the ileum will be available for the common channel. I believe there is 2.54 cm to an inch. If you had a 20', or 609 cm, intestinal tract, the bypassing of 180 cm would leave a common channel of 429 cm. An 18', or 548 cm, intestinal tract would have a remaining 368 cm common channel. Using Dr. Kushner's definition, with either beginning length, the result would still be a proximal RNY. Ray Hooks For WLS nutrition info, visit http://www.bariatricsupplementsystem.com Creighton wrote: > > Hi Everyone, > What is 180 cm considered when bypassed? A distal or medial?And what is the longest a surgeon can bypass. > Thanks, > in SC > > Quote Link to comment Share on other sites More sharing options...
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