Definition: Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.
Input: Abstract: A patient with severe chronic gastritis and duodenitis that clinically and endoscopically disappeared after an intestinal revascularization procedure is reported. Chronic intestinal ischemia appears to be a cause of gastritis as seen in this patient.
Output:
Chronic ischemic gastritis reversed after revascularization operation.