Hello, as I'm sure you know the two most typical causes of pancreatitis are stones and alcoholism. In your case both have been ruled out. Most chronic pancreatitis has no clear cause.(idiopathic) The symptoms of chronic pancreatitis are the same as acute and they fall into two patterns. One pattern the person has mid-abdominal pain varying in intensity. In this pattern it is more likely from a cyst or mass. The second pattern the person has occasional flare ups with symptoms of mild to moderate pancreatitis the pain may last for hours or days. Eventually the pain may stop due to loss of cells that produce digestive enzymes. If you continue to have pain without complications, the doctor may recommend injecting a local anesthetic (i.e Lidocaine) and corticosteroids like Depo-Medrol or Prednisone into the nerves of the pancreas thus blocking the pain impulse to the brain. Some reasons a person may develop pancreatitis other than discussed above would be drug induced, this would include Amiodarone used for cardiac arrhythmia , Lisinopril ACE for high B.P. very rare but some oral diabetic drugs. Other reasons include hereditary predisposition and hyperparathyroidism .
Good Luck, Paul
Paul Parks R.N
RN with 18+ years experience in Critical Care, Surgery,GI and presently working as a Legal Nurse Consultant