Background: Recent studies have questioned the use of histamine (H-2)
receptor antagonist in stress ulcer prophylaxis because of an increase
d incidence of noscomial pneumonia and subsequent death. Design: This
prospective randomized study compared prophylaxis with cimetidine vs s
ucralfate. Setting: Medical/surgical intensive care unit in Springfiel
d, Mass. Patients: One hundred fourteen patients were enrolled. Interv
entions: Cimetidine, administered as a primed continuous infusion usin
g a 300-mg bolus followed by 31.5 mg/h, was compared with sucralfate,
administered via nasogastric tube, at a dosage of 1 g every 6 hours su
spended in 20 ml of sterile water. Main Outcome Measures: End points o
f the study included nosocomial pneumonia, gastrointestinal hemorrhage
, and death. Results: Fifty-six patients were randomized to receive ci
metidine and their rate of pneumonia was 12.5%; upper gastrointestinal
hemorrhage, 3.6%: and mortality, 33.9%. Fifty-eight patients were giv
en sucralfare, and their rate of pneu- monia was 13.8%; upper gastroin
testinal hemorrhage, 3.4%; and mortality, 37.9%. There were no signifi
cant differences between these study end points. In patients who had p
neumonia, 80% of isolates were aerobic gram-negative bacilli.Conclusio
ns: These observations suggest that the rate of nosocomial pneumonia i
s not increased in patients in the intensive care unit who receive pro
phylaxis with cimetidine to prevent stress ulcer bleeding.