Oral olanzapine versus oral ondansetron for prevention of post-operative nausea and vomiting. A randomized, controlled study
Ibrahim, M., Eldesuky, H., Ibrahim, T. (2013). Oral olanzapine versus oral ondansetron for prevention of post-operative nausea and vomiting. A randomized, controlled study. EKB Journal Management System, 29(2), 89-95. doi: 10.1016/j.egja.2013.01.002
Mohamed Ibrahim; Hossam I. Eldesuky; Tamer H. Ibrahim. "Oral olanzapine versus oral ondansetron for prevention of post-operative nausea and vomiting. A randomized, controlled study". EKB Journal Management System, 29, 2, 2013, 89-95. doi: 10.1016/j.egja.2013.01.002
Ibrahim, M., Eldesuky, H., Ibrahim, T. (2013). 'Oral olanzapine versus oral ondansetron for prevention of post-operative nausea and vomiting. A randomized, controlled study', EKB Journal Management System, 29(2), pp. 89-95. doi: 10.1016/j.egja.2013.01.002
Ibrahim, M., Eldesuky, H., Ibrahim, T. Oral olanzapine versus oral ondansetron for prevention of post-operative nausea and vomiting. A randomized, controlled study. EKB Journal Management System, 2013; 29(2): 89-95. doi: 10.1016/j.egja.2013.01.002

Oral olanzapine versus oral ondansetron for prevention of post-operative nausea and vomiting. A randomized, controlled study

Egyptian Journal of Anaesthesia
Volume 29, Issue 2, April 2013, Pages 89-95    PDF (408.11 K)
DOI: 10.1016/j.egja.2013.01.002
Authors
Mohamed Ibrahim; Hossam I. Eldesuky; Tamer H. Ibrahim
Abstract
Background
This study was designed to mainly evaluate the efficacy and safety of olanzapine compared with placebo and ondansetron for prevention of postoperative nausea and vomiting in patients undergoing breast surgeries.
Methods
Eighty two female patients scheduled for breast surgeries were randomly assigned to four test groups received placebo or single oral dose of olanzapine 5 mg (OL5) or 10 mg (OL10) or ondansetron 16 mg (ON16) before induction of anesthesia by 4 h for olanzapine and 1 h for ondansetron. All patients were monitored for 24 h. Emetic episodes and nausea occurrence were the primary outcome in this study. Secondary endpoint was the complete response (CR) (without nausea and vomiting, no rescue therapy) for the acute (0–2 h) and late (2–24 h) periods.
Results
Need for rescue antiemetics showed significant reduction ( < 0.05) for all groups in comparison with placebo. Number needed to be treated (NNT) improved on increasing dose of olanzapine from 5 mg to 10 mg for prevention of both nausea (48%) and vomiting (36%) in comparison to placebo.
Conclusion
Olanzapine can be used safely and effectively for prophylaxis against PONV especially for late postoperative periods.
Keywords
Nausea; Vomiting; Prophylaxis; Olanzapine; Ondansetron
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