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Aromatherapy May Help Alleviate Postoperative Nausea

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Aromatherapy May Help Alleviate Postoperative Nausea

Second study shows beneficial effects of intravenous dextrose after gynecological surgery

THURSDAY, Aug. 29 (HealthDay News) -- Aromatherapy and intravenous dextrose bolus may be beneficial for postoperative nausea, according to two studies published in the September issue of Anesthesia & Analgesia.

Ronald Hunt, M.D., from the Carolinas Medical Center University in Charlotte, N.C., and colleagues conducted a randomized trial involving 301 patients with postoperative nausea in the post-anesthesia care unit (PACU) at one ambulatory surgical care center. Participants were given a gauze pad saturated with a randomly selected aromatherapy agent (essential oil of ginger; blend of ginger, spearmint, peppermint, and cardamom; or isopropyl alcohol) and told to inhale deeply three times. The researchers found that for the blend and for ginger versus saline, but not for alcohol, the change in nausea level was significant. With ginger or blend aromatherapy versus saline, there was a significant reduction in the number of antiemetic medications requested.

Susan Dabu-Bondoc, M.D., from the Yale University School of Medicine in New Haven, Conn., and colleagues examined the effect of postoperative intravenous bolus dextrose administration on postoperative nausea and vomiting (PONV) rates in 62 outpatients scheduled for gynecologic laparoscopic and hysteroscopic procedures. The researchers found that the postoperative nausea score was not significantly different for the dextrose versus the control group, after correction for repeated measurements over time. Patients who received dextrose consumed significantly less rescue antiemetic medications (ratio mean difference, 0.56) and had shorter length of stay in the PACU (ratio mean difference, 0.80).

"Post-anesthesia intravenous dextrose administration resulted in improved PONV management as defined by reductions in antiemetic rescue medication requirements and PACU length of stay that are worthy of further study," Dabu-Bondoc and colleagues write.

Abstract - Hunt (http://www.anesthesia-analgesia.org/content/117/3/597.abstract )Full Text (http://www.anesthesia-analgesia.org/content/117/3/597.full )Abstract - Dabu-Bondoc (http://www.anesthesia-analgesia.org/content/117/3/591.abstract )Full Text (http://www.anesthesia-analgesia.org/content/117/3/591.full )