Abstract
Epinephrine injection is an effective, simple, and economical method of endoscopic hemostasis for bleeding peptic ulcers. We measured catecholamine levels in 18 patients with actively bleeding ulcers (8 gastric ulcers and 10 duodenal ulcers) treated by endoscopic injection. Injection of epinephrine (1:10,000 IU) was given until bleeding from the ulcers stopped. Catecholamine levels were assayed by high-pressure liquid chromatography. Immediately after the injection the plasma level of epinephrine rose by four to five times above the basal level and returned to the baseline in 20 minutes. Norepinephrine levels were not significantly raised in these patients. No cardiovascular complications were seen. Although adverse cardiac events have not been recorded, it seems prudent to monitor these patients closely during and immediately after epinephrine injection.
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