The thought that an operation.... surgery... can reverse a botched Nissen surgery is wishful...but the GI doctors at Mayo MN said, NO... (I have post-operative gastroparesis caused by nerve damage done during the Nissen...).. Once those nerves are damaged... they do not regenerate... by undoing any surgery... I have lived with the Gastroparesis for 7 years.. Every meal is a challenge to eat.. cut things very small .. eat very slow.. learn to put down your fork for minutes between bites.. .. never lay down flat.. Gravity works, use it.. I drink only Pedilyte (an electrolyte)... coffee.. a small glass of orange juice, a small glass of Kefir (a fermented dairy product).. Get that foam wedge to put under your pillows when you sleep... I lost 50 pounds..(down to just under 150) during the local clinic's stumbling around... have gained 25 back ...(I was never "fat") but keeping weight on is a chore you must dedicate your efforts toward... some days I eat ice cream with strawberries twice.. Ken