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Ondansetron Lozenge Versus Intravenous for Prevention of Shivering in Tonsillectomy

Effect of Ondansetron Lozenge Versus Intravenous for Prevention of Shivering in Tonsillectomy: A Randomized Controlled Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07489742
Enrollment
210
Registered
2026-03-24
Start date
2026-03-25
Completion date
2026-09-01
Last updated
2026-03-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intravenous, Lozenge, Ondansetron, Shivering, Tonsillectomy

Brief summary

This study aims to compare the effect of ondansetron lozenge and intravenous for prevention of shivering in tonsillectomy.

Detailed description

Tonsillectomy is one of the most common surgeries in children. The main reason for morbidity in patients undergoing surgical procedures is post-operative complications. Shivering is random spontaneous and asynchronous skeletal muscle contractions that increases the basal metabolism and is characterized to be a defense mechanism for regulation of temperature. Ondansetron is a selective antagonist for receptor 5-hydroxytryptamine 3 and is very effective in the prevention and treatment of shivering intra- and post-operation.

Interventions

Patients will receive ondansetron lozenge 4 mg (Ondalenz ©), 2 hours before surgery.

Patients will receive 4 mg of ondansetron IV just before the surgery.

Sponsors

Tanta University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
4 Years to 15 Years
Healthy volunteers
No

Inclusion criteria

* Age from 4 to 15 years. * Both sexes. * American Society of Anesthesiology (ASA) physical status I-II. * Children undergoing tonsillectomy under general anesthesia.

Exclusion criteria

* Allergy to ondansetron. * History of sleep apnea. * Cardiac and respiratory diseases. * Upper respiratory tract infection. * Taking corticosteroids.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of shivering24 hours postoperativelyIncidence of shivering will be recorded and graded by using the scale validated by Crossley and Mahajan. Crossley and Mahajan grade 0, no shivering; grade 1, no visible muscle activity, but one or more of the following: piloerection, peripheral vasoconstriction, or peripheral cyanosis (other causes excluded); grade 2, muscular activity in only one muscle group; grade 3, moderate muscular activity in more than one muscle group but not generalized shaking; grade 4, violent muscular activity that involves the whole body.

Secondary

MeasureTime frameDescription
Incidence of postoperative nausea and vomiting24 hours postoperativelyIncidence of postoperative nausea and vomiting (PONV) will be recorded.
Core temperatureIntraoperativelyCore temperature will be recorded.
Peripheral temperatureIntraoperativelyPeripheral temperature will be recorded.
Incidence of adverse effects24 hours postoperativelyIncidence of adverse effects such as bradycardia, hypotension, respiratory depression, or any other complication will be recorded.

Countries

Egypt

Contacts

CONTACTMohammed S Elsharkawy, MD
mselsharkawy@med.tanta.edu.eg00201148207870

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 28, 2026