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Published on: November 6, 2019
Tramadol for pain relief in children undergoing tonsillectomy: a comparison with morphine
Thomas Engelhardt1, Elizabeth Steel, Graham Johnston
1Royal Aberdeen Children's Hospital, Aberdeen, UK. t.engelhardt@abdn.ac.uk
Insights
Tramadol offers comparable pain relief to morphine for children after tonsillectomy, with fewer side effects like vomiting. This suggests tramadol could be a valuable option for pediatric anesthesia if licensed.
Area of Science:
- Pediatric Anesthesiology
- Pain Management
- Pharmacology
Background:
- Effective pain management for pediatric tonsillectomy patients is a significant clinical challenge.
- Tramadol is recognized for its analgesic efficacy and a side-effect profile comparable to morphine.
- Currently, tramadol lacks UK licensure for pediatric use.
Purpose of the Study:
- To compare the efficacy and safety of tramadol versus morphine for postoperative pain control in children undergoing tonsillectomy.
- To evaluate postoperative pain scores, analgesic requirements, sedation, and adverse events.
Main Methods:
- A prospective, double-blind, randomized controlled trial involving 60 pediatric patients undergoing elective tonsillectomy or adenotonsillectomy.
- Patients were allocated to receive either morphine (0.1 mg.kg(-1)) or tramadol (1 mg.kg(-1) or 2 mg.kg(-1)) post-anesthesia induction, alongside rectal diclofenac.
- Postoperative outcomes including pain, sedation, respiratory status, and gastrointestinal side effects were monitored.
Main Results:
- No statistically significant differences were observed in pain scores, sedation levels, or additional analgesic needs between the morphine and tramadol groups.
- No instances of respiratory depression were reported across all treatment groups.
- Vomiting occurred significantly more frequently in the morphine group (75%) compared to the tramadol groups (40%) after discharge to the ward (P=0.03).
Conclusions:
- Tramadol demonstrates comparable analgesic properties to morphine in the pediatric population undergoing tonsillectomy.
- Tramadol's favorable side-effect profile, particularly reduced vomiting, and availability as a non-controlled substance position it as a potentially valuable agent for pediatric anesthesia.
- Licensure of tramadol for pediatric use in the UK could enhance postoperative pain management options.
Background:
Pain control for paediatric patients undergoing tonsillectomy remains problematic. Tramadol is reported to be an effective analgesic and to have a side-effect profile similar to morphine, but is currently not licensed for paediatric use in the UK.
Methods:
We conducted a prospective, double-blind, randomized controlled trial in children who were scheduled for elective tonsillectomy or adenotonsillectomy at the Royal Aberdeen Children Hospital. Following local ethics committee approval and after obtaining a drug exemption certificate from the Medicines Licensing Agency for an unlicensed drug, we recruited 20 patients each into morphine (0.1 mg.kg(-1)), tramadol (1 mg.kg(-1)) and tramadol (2 mg.kg(-1)) groups. These drugs were given as a single injection following induction of anaesthesia. In addition, all patients received diclofenac (1 mg.kg(-1)) rectally. The postoperative pain scores, analgesic requirements, sedation scores, signs of respiratory depression and nausea and vomiting, as well as antiemetic requirements, were noted at 4-h intervals until discharge.
Results:
There were no statistically significant differences in age, weight, type of operation or induction of anaesthesia, 4-h sedation and pain scores and further analgesic requirements. There were no episodes of respiratory depression. Morphine was associated with a significantly higher incidence of vomiting following discharge to the wards (75% versus 40%, P=0.03) compared with both tramadol groups.
Conclusions:
Tramadol has similar analgesic properties, when compared with morphine. The various pharmaceutical presentations and the availability as a noncontrolled substance may make it a useful addition to paediatric anaesthesia if it becomes licensed for paediatric anaesthesia in the UK.
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Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...