PMID- 16192516 OWN - NLM STAT- MEDLINE DCOM- 20051021 LR - 20210902 IS - 0003-2999 (Print) IS - 0003-2999 (Linking) VI - 101 IP - 4 DP - 2005 Oct TI - The efficacy of preanesthetic proton pump inhibitor treatment for patients on long-term H2 antagonist therapy. PG - 1038-1041 LID - 10.1213/01.ane.0000166979.99225.a0 [doi] AB - We previously reported that H2-antagonist medication given for longer than 4 wk may produce complete tolerance to preanesthetic H2 antagonist therapy. In this study, we evaluated the efficacy of preanesthetic proton pump inhibitor (PPI; oral rabeprazol) use in patients receiving regular H2-antagonist (oral famotidine) therapy for more than 4 wk. Forty-eight patients with assumed complete tolerance to H2 antagonists undergoing elective surgery were recruited and randomly assigned to receive either a preanesthetic PPI (rabeprazol 20 mg; n = 24) or H2-antagonist (H2 group; roxatidine 75 mg; n = 24) at 9:00 pm on the day before surgery and 2 h before the induction of anesthesia. Volume of gastric contents and pH values were measured after the induction of anesthesia. Gastric pH value in the PPI group (5.38 +/- 2.42) was significantly higher than in the H2 group (3.27 +/- 1.98; P < 0.01). Gastric volume in the PPI group (8.6 +/- 1.5 mL) was significantly smaller than in the H2 group (15.4 +/- 2.8 mL; P < 0.05; cf. PPI). Fourteen patients in the H2 group were at risk of acid aspiration pneumonia (gastric pH <2.5 or volume >25 mL), whereas only four patients in the PPI group (P < 0.05) were at risk. These data suggest that in patients receiving H2-antagonist therapy for longer than 4 wk, prophylaxis for acid aspiration pneumonia should include preanesthetic PPI medication. IMPLICATIONS: We previously reported that more than 4 wk of administration of H2-antagonists may produce a full tolerance to preanesthetic H2-antagonists. The present study suggests that a proton pump inhibitor may be effective for prophylaxis of acid aspiration pneumonia in patients showing the full tolerance to H2 antagonists. FAU - Hirota, Kazuyoshi AU - Hirota K AD - Department of Anesthesiology, University of Hirosaki School of Medicine, Japan. FAU - Kudo, Mihoko AU - Kudo M FAU - Hashimoto, Hiroshi AU - Hashimoto H FAU - Kushikata, Tetsuya AU - Kushikata T LA - eng PT - Journal Article PL - United States TA - Anesth Analg JT - Anesthesia and analgesia JID - 1310650 RN - 0 (2-Pyridinylmethylsulfinylbenzimidazoles) RN - 0 (Anti-Ulcer Agents) RN - 0 (Benzimidazoles) RN - 0 (Gastrins) RN - 0 (Histamine H2 Antagonists) RN - 0 (Piperidines) RN - 0 (Proton Pump Inhibitors) RN - 32828355LL (Rabeprazole) RN - 5QZO15J2Z8 (Famotidine) RN - KG60484QX9 (Omeprazole) RN - ZUP3LSD0DO (roxatidine acetate) SB - IM MH - 2-Pyridinylmethylsulfinylbenzimidazoles MH - Adult MH - Aged MH - Anti-Ulcer Agents/*pharmacology MH - Benzimidazoles/pharmacology MH - Drug Tolerance MH - Famotidine/pharmacology MH - Female MH - Gastric Acidity Determination MH - Gastrins/blood MH - Histamine H2 Antagonists/*pharmacology MH - Humans MH - Male MH - Middle Aged MH - Omeprazole/analogs & derivatives/pharmacology MH - Piperidines/pharmacology MH - Pneumonia, Aspiration/*prevention & control MH - *Preanesthetic Medication MH - *Proton Pump Inhibitors MH - Rabeprazole EDAT- 2005/09/30 09:00 MHDA- 2005/10/22 09:00 CRDT- 2005/09/30 09:00 PHST- 2005/09/30 09:00 [pubmed] PHST- 2005/10/22 09:00 [medline] PHST- 2005/09/30 09:00 [entrez] AID - 00000539-200510000-00020 [pii] AID - 10.1213/01.ane.0000166979.99225.a0 [doi] PST - ppublish SO - Anesth Analg. 2005 Oct;101(4):1038-1041. doi: 10.1213/01.ane.0000166979.99225.a0.