This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a colleague Similar articles in this journal Similar articles in Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Request Permissions Citing Articles Citing Articles via Web of Science (3) Citing Articles via Google Scholar Google Scholar Articles by Memis, D. Articles by Pamukçu, Z. Search for Related Content PubMed PubMed Citation Articles by Memis, D. Articles by Pamukçu, Z. Related Collections Pharmacology

---

ANESTHETIC PHARMACOLOGY

The Effect of Intravenous Pantoprazole and Ranitidine for Improving Preoperative Gastric Fluid Properties in Adults Undergoing Elective Surgery

Dilek Memi, MD^*, Alparslan Turan, MD^*, Beyhan Karamanlioglu, MD^*, Pnar Saral, MD^*, Mevlüt Türe, PhD, and Zafer Pamukçu, MD^*

Departments of *Anaesthesiology and Biostatistics, Trakya University Medical Faculty, Edirne, Turkey

Address correspondence and reprint requests to Dilek Memi, MD, Trakya University, School of Medicine, Department of Anaesthesiology and Reanimation, 22030 Edirne, Turkey. Address e-mail to dilmemis{at}mynet.com

We studied pantoprazole, a new potent and fast-acting proton pump inhibitor. Its effects on preoperative gastric fluid volume and pH have not yet been determined. In this randomized, controlled trial, we examined the effects of preoperative IV pantoprazole or ranitidine on gastric pH and volume. Ninety patients (ASA status I and II, scheduled for elective surgery) were studied. One hour before surgery, patients in Group I (n = 30) were given IV saline 5 mL, those in Group II (n = 30) were given 40 mg of pantoprazole IV, and those in Group III (n = 30) were given 50 mg of ranitidine IV. A nasogastric tube was inserted immediately after anesthesia induction. Gastric contents were aspirated, and volume and pH were recorded. The pH values determined in Group I were 3.73 ± 0.82; in Group II, they were 5.30 ± 1.84; and in Group III, they were 4.80 ± 1.40. There was no statistical difference between Groups 2 and 3, but there was a significant difference between Group I and Groups 2 and 3 (P < 0.0005). The volume of the gastric contents was 28.67 ± 10.98 mL in Group I, 15.20 ± 15.52 mL in Group II, and 7.77 ± 11.17 mL in Group III. There was no statistical difference between Groups 2 and 3, but there was a statistically significant difference between Group I and Groups 2 and 3 (P < 0.0005). The proportion of patients considered "at risk" of significant lung injury should aspiration occur was 20% of Group I, 10% of Group II, and 3.3% of Group III. When statistically evaluated, there was no difference among groups. We concluded that the administration of IV pantoprazole and ranitidine 1 h before surgery is effective in reducing gastric pH and volume.

IMPLICATIONS: This randomized, controlled trial examined the effects of preoperative IV pantoprazole or ranitidine on gastric pH and volume. We concluded that IV pantoprazole and ranitidine, given 1 h before surgery, are effective in reducing gastric pH and volume.