On maintenance hemodialysis, these patients may require s urgery for various reasons including renal transplantation, and they are predisposed to all kinds of surgically correctable complications involving the abdominal organs. The commonest indication for surgi c al intervention is gastrointestinal bleeding. Gastrointestinal symptoms are recongnized as part of secondary chronic h y perparathyroidism. This report is a review of our experience with three cases who devel oped gastrointestinal bleeding during maintenance hemodialysis. Relationship between peptic ulcer and hypercalcemia was discussed.
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