GE Junction under Anesthesia

[Planktonmd]

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Do we know how a normal GE junction behaves under anesthesia?
Let's say you don't have a history of GERD or HH, does that mean the GE junction will remain competent and protect you while under GA?
Anyone knows the answer?

 

[proman]

Anesth Analg. 2005 Apr;100(4):1200-3.
The effects of cricoid pressure, remifentanil, and propofol on esophageal motility and the lower esophageal sphincter
http://www.anesthesia-analgesia.org/cgi/pmidlookup?view=long&pmid=15781546

Acta Anaesthesiol Scand. 2006 Sep;50(8):978-81
The effects on the lower esophageal sphincter of sevoflurane induction and increased intra-abdominal pressure during laparoscopy.

J Anesth. 1999;13(1):1-7
Effects of sevoflurane and enflurane on lower esophageal sphincter pressure and gastroesophageal pressure gradient in children.