To answer your questions:
1) The liver enzymes are elevated despite a recent ERCP. Repeating the tests to ensure they aren't rising should be considered. An ultrasound and/or a liver biopsy can be considered for further evaluation.
2) Although possible, I am not aware of liver disease leading to a significant shift in the cholesterol level - however, I would repeat the tests to ensure this isn't the case.
3) Pancreatitis, infection, perforation and bleeding are all complications of an ERCP. The complication rate is related to the skill and experience of the endoscopist.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
kevinmd_b
Hope you start feeling better soon.
ERCP, as any test, is not 100% safe: perforation and pancreatitis can occur, but not very commonly, especially perforation. Without knowing more about your situation, it's very hard to evaluate: the numbers you give, which I infer are after the worst was over, are generally not very high and could be due to any number of things.