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[Use of omeprazole for premedication]
1Department of Anesthesiology, Sendai City Hospital.
Masui. the Japanese Journal of Anesthesiology
|August 1, 1992
Summary
Omeprazole premedication significantly reduced gastric juice volume before general anesthesia. However, a 20 mg dose may not be sufficient for adequate gastric protection during surgery.
Area of Science:
- Anesthesiology
- Pharmacology
- Gastroenterology
Background:
- Proton pump inhibitors like omeprazole are used to reduce gastric acid secretion.
- Premedication with omeprazole is explored for its potential to minimize gastric volume and reduce aspiration risk during general anesthesia.
Purpose of the Study:
- To investigate the effects of different omeprazole premedication regimens on gastric secretion and serum gastrin levels in patients undergoing general anesthesia.
Main Methods:
- Sixty patients were divided into four groups: no omeprazole, 20 mg omeprazole the night before, 20 mg two hours before anesthesia, or both.
- Gastric juice volume, gastric pH, and serum gastrin levels were measured at the start of surgery.
Main Results:
- Omeprazole administration, regardless of dosage or timing, significantly reduced gastric juice volume compared to the control group (P < 0.05).
- A trend towards increased gastric pH was observed with higher omeprazole doses, but this was not statistically significant.
- No significant alterations in serum gastrin levels were detected across the groups.
Conclusions:
- Omeprazole premedication effectively decreases gastric juice volume prior to general anesthesia.
- A single 20 mg dose of omeprazole may not provide adequate gastric protection for all patients undergoing anesthesia, suggesting potential need for adjusted dosing or alternative strategies.