Welcome to Healing Well! While I've never heard of POEM, I did a little looking and found this information online. I'm sure you've already located it, but it might be helpful background information for others who see this post. Good luck with your search! Hopefully somebody will be by soon who has information to share.
Nissen Fundoplication 2/09
"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”