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Dolasetron for the prevention of postoperative vomiting in children undergoing strabismus surgery
Deborah Wagner1, Uma Pandit, Terri Voepel-Lewis
1University of Michigan Health Systems, Department of Pediatric Anesthesia, Ann Arbor, MI, USA. debbiew@umich.edu
Insights
Dolasetron effectively prevents postoperative vomiting (POV) in children undergoing strabismus surgery. Both weight-based and fixed doses significantly reduced emesis compared to placebo.
Area of Science:
- Pediatric Anesthesiology
- Pharmacology
- Surgical Outcomes
Background:
- Postoperative vomiting (POV) is a common complication in pediatric strabismus surgery.
- Effective antiemetic strategies are crucial for patient recovery and reducing healthcare costs.
Purpose of the Study:
- To evaluate the efficacy and safety of dolasetron in preventing POV in children.
- To compare two dolasetron dosing regimens (0.35 mg/kg vs. 12.5 mg fixed dose) against a placebo.
Main Methods:
- A double-blind, randomized study involving 118 children (2-12 years) undergoing strabismus surgery.
- Patients received either dolasetron (weight-based or fixed dose) or placebo 15 minutes before surgery end.
- Outcomes included acute complete response (ACR), time to awakening, and PACU length of stay.
Main Results:
- Acute complete response (no emesis or rescue medication within 24 hours) was achieved in 62% (weight dose) and 64% (fixed dose) of patients.
- This is significantly higher than the 33% observed in the placebo group (P < 0.05).
- No statistical difference in efficacy was noted between the two dolasetron doses.
Conclusions:
- Both weight-based (0.35 mg/kg) and fixed (12.5 mg) doses of dolasetron are effective in reducing the incidence of postoperative vomiting.
- Dolasetron represents a safe and effective option for preventing emesis in pediatric patients undergoing strabismus surgery.
Background:
Children undergoing strabismus surgery have a high incidence of postoperative vomiting (POV). The purpose of this study was to assess the efficacy and safety of dolasetron for the prevention of emesis comparing a single 0.35 mg.kg-1 or 12.5 mg dose with placebo.
Methods:
Children aged 2-12 years with an ASA status of 1 or 2 undergoing strabismus surgery were randomized in a double-blind manner to one of three treatment groups. Patients were excluded with a history of previous postoperative vomiting or motion sickness, allergy to serotonin receptor antagonists or previous antiemetic administration within 24 h prior to enrollment. General anaesthesia was induced with sevoflurane and N2O/O2 and maintained with isoflurane and N2O/O2. The study medication was administered 15 min prior to the end of surgery. Patients experiencing two or more episodes of vomiting were rescued in the postanaesthesia care unit (PACU) with metoclopramide 0.15 mg.kg-1. A total of 118 patients were enrolled with documentation of the number and severity of vomiting episodes, time to awakening, PACU length of stay and postoperative agitation.
Results:
Patients with an acute complete response (ACR), defined as no emetic episodes and no rescue medication within 24 h of study drug administration were 62% (weight dose), 64% (fixed dose) and 33% (placebo, P < 0.05).
Conclusions:
There was no statistical difference between the 0.35 mg.kg-1 dose and the fixed 12.5 mg dose of dolasetron with both reducing the incidence of POV.
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