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Oral clonidine premedication reduces nausea and vomiting in children after appendectomy
Reza Alizadeh1, Seyed-Mohammad Mireskandari, Mitra Azarshahin
1Department of Anesthesiology and Intensive Care, AJA University of Medical Sciences, Tehran, Iran ; Sports Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Insights
Preoperative oral clonidine significantly reduced postoperative nausea and vomiting (PONV) in children undergoing appendectomy. This study found fewer PONV episodes and less need for antiemetics in children who received clonidine.
Area of Science:
- Anesthesiology
- Pediatric Surgery
- Pharmacology
Background:
- Clonidine, an alpha-2 agonist, is used for sedative premedication in pediatric patients.
- Existing literature presents conflicting data on clonidine's efficacy in preventing postoperative nausea and vomiting (PONV).
Purpose of the Study:
- To investigate the impact of preoperative oral clonidine on the incidence of PONV in children undergoing appendectomy.
Main Methods:
- A randomized, double-blind clinical trial involving 60 children (ages 5-12, ASA physical status I-II) scheduled for appendectomy.
- Participants received either 4 µg/kg clonidine in apple juice or apple juice alone one hour before surgery.
- PONV incidence and antiemetic use were monitored over 24 hours post-anesthesia.
Main Results:
- Patient demographics were comparable between the clonidine and control groups.
- The clonidine group experienced significantly fewer episodes of PONV compared to the control group.
- Fewer patients in the clonidine group required rescue antiemetic medication.
Conclusions:
- Preoperative oral administration of clonidine at 4 µg/kg effectively reduces the incidence of postoperative vomiting in pediatric appendectomy patients.
- Clonidine demonstrates a beneficial role in managing PONV in this specific pediatric surgical population.
Objective:
Clonidine is an α2-agonist which is used as a sedative premedication in children. There are conflicting results in the published literature about the effect of clonidine on the incidence of post operative nausea and vomiting (PONV). We therefore decided to evaluate the effect of oral clonidine given preoperatively on the incidence of PONV in children after appendectomy.
Methods:
Sixty children, 5-12 years old, classified as American Society of Anesthesiologists physical status I and II, who were scheduled for appendecectomy were enrolled in this randomized double blinded clinical trial. Patients were randomly assigned into two groups of 30 patients. Patients in clonidine group were given 4 µg.kg -1 clonidine in 20 cc of apple juice and patients in control group were given only 20 cc of apple juice 1 hour before transporting to operating room. The protocol of general anesthesia and postoperative analgesia was the same for two groups. Incidence of PONV and antiemetic usage of patients were assessed during 0-24 hours after anesthesia.
Findings:
The patients' characteristics were similar in two groups. Patients who had received clonidine had significantly less episodes of PONV and also less rescue antiemetic usage than patients in control group.
Conclusion:
We showed that oral clonidine at a dose of 4 µg.kg -1 administered preoperatively is associated with a reduced incidence of postoperative vomiting in children who have undergone appendectomy.
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