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CompletedNCT06289335Updated Mar 1, 2024

Dexmedetomidine Compared to Ondansetron for Postanaesthetic Shivering in Patients Undergoing a Cesarean Section

A Phase 2 interventional study of saline solution in Postanesthetic Excitement and Cesarean Section, sponsored by Hospital Central "Dr. Ignacio Morones Prieto". Completed at 1 site in Mexico. Open to female participants aged 18 Years to 45 Years. Per ClinicalTrials.gov, last updated 2024-03-01.

Sponsored by Hospital Central "Dr. Ignacio Morones Prieto" · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Registered 3 years 6 months after the study started (first participant enrolled Aug 2020, registered Feb 2024).
Phase
Phase 2
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
Female
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Study summary

Evaluate the efficiency of management with intravenous dexmedetomidine compared to intravenous ondansetron to achieve the disappearance of post-anesthetic shivering in a shorter time in the obstetric patient undergoing cesarean section under regional anesthesia.

Read the detailed description

Randomized clinical trial with 40 pregnant patients, between 18 and 45 years old with ASA (American Society of Anesthesiologist) II or III, undergoing scheduled or emergency cesarean section with regional anesthesia and who presented grade tremor 1 based on the BSAS (Bedside shivering assessment scale) scale, at the Hospital Central from San Luis Potosi, Mexico. The main objective of this study was to quantify the time that elapsed from the end of the administration of the medication until the disappearance of the tremor, which was measured in minutes; The evaluation of the disappearance, persistence or reappearance of the tremor was solely visual by the anesthesiology staff.

02

Conditions studied

  • Postanesthetic Excitement
  • Cesarean Section

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Keywords

  • shivering, dexmedetomidine, ondansetron, regional anesthesia
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In context

Emergence Delirium

763 studies on the registry are indexed under Emergence Delirium; 241 are open to participants now.

This study's enrollment of 40 is below the median of 120 across 475 interventional studies indexed under Emergence Delirium.

Browse Emergence Delirium studies →

Lead sponsor

Hospital Central "Dr. Ignacio Morones Prieto" is the lead sponsor of 11 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • ASA II or III, undergoing scheduled or emergency cesarean section with regional anesthesia (hyperbaric bupivacaine 0.5% with morphine at 1 mcg Kg-1) and who presented tremor grade >1 based on the BSAS scale

Exclusion criteria

Exclusion Criteria:

  • Hemodynamic instability, heart disease or sinus bradycardia, allergy to any of the medications applied, psychiatric diseases or hypothermia \<35.2 ºC measured by tympanic temperature.
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Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
40 participants (actual)

Study arms

  • Active comparator
    Dexmedetomidine

    0.3 mcg Kg-1 (actual weight) of dexmedetomidine IV in 20 mL of saline

    Drug: saline solution

  • Sham comparator
    Ondansetron

    8 mg ondansetron IV in 20 mL saline

    Drug: saline solution

Interventions

  • Drugsaline solution

    20 mL of saline

    Also known as: isotonic solution

06

What researchers measure

Primary outcomes

  1. Period of time

    period of time in which post-anesthetic tremor is controlled from the moment of administration

    Time frame: one hour

Secondary outcomes

  1. Adverse effects

    To measure the frequencies of occurrence of adverse effects and changes in vital signs (heart rate, blood pressure, and temperature \[measured at the tympanic membrane\]) correlated with resolution of tremor.

    Time frame: one hour

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Study locations

1 site
  • Hospital Central Dr. Ignacio Morones Prieto
    San Luis Potosí, 78290, Mexico
08

References and documents

Publications

  • Lopez MB. Postanaesthetic shivering - from pathophysiology to prevention. Rom J Anaesth Intensive Care. 2018 Apr;25(1):73-81. doi: 10.21454/rjaic.7518.251.xum. PubMed 29756066 ↗
  • Jain A, Gray M, Slisz S, Haymore J, Badjatia N, Kulstad E. Shivering Treatments for Targeted Temperature Management: A Review. J Neurosci Nurs. 2018 Apr;50(2):63-67. doi: 10.1097/JNN.0000000000000340. PubMed 29278601 ↗
  • Tsai YC, Chu KS. A comparison of tramadol, amitriptyline, and meperidine for postepidural anesthetic shivering in parturients. Anesth Analg. 2001 Nov;93(5):1288-92. doi: 10.1097/00000539-200111000-00052. PubMed 11682416 ↗
  • Talke P, Tayefeh F, Sessler DI, Jeffrey R, Noursalehi M, Richardson C. Dexmedetomidine does not alter the sweating threshold, but comparably and linearly decreases the vasoconstriction and shivering thresholds. Anesthesiology. 1997 Oct;87(4):835-41. doi: 10.1097/00000542-199710000-00017. PubMed 9357885 ↗
  • Elvan EG, Oc B, Uzun S, Karabulut E, Coskun F, Aypar U. Dexmedetomidine and postoperative shivering in patients undergoing elective abdominal hysterectomy. Eur J Anaesthesiol. 2008 May;25(5):357-64. doi: 10.1017/S0265021507003110. Epub 2008 Jan 21. PubMed 18205960 ↗
  • Hoffman J, Hamner C. Effectiveness of dexmedetomidine use in general anesthesia to prevent postoperative shivering: a systematic review. JBI Database System Rev Implement Rep. 2016 Jan 15;13(12):287-313. doi: 10.11124/jbisrir-2015-2257. PubMed 26767820 ↗
  • Yu G, Jin S, Chen J, Yao W, Song X. The effects of novel alpha2-adrenoreceptor agonist dexmedetomidine on shivering in patients underwent caesarean section. Biosci Rep. 2019 Feb 1;39(2):BSR20181847. doi: 10.1042/BSR20181847. Print 2019 Feb 28. PubMed 30643009 ↗
  • Abdel-Ghaffar HS, Mohamed SA, Fares KM, Osman MA. Safety and Efficacy of Dexmedetomidine in Treating Post Spinal Anesthesia Shivering: A Randomized Clinically Controlled Dose-Finding Trial. Pain Physician. 2016 May;19(4):243-53. PubMed 27228512 ↗
  • He K, Zhao H, Zhou HC. Efficiency and safety of ondansetron in preventing postanaesthesia shivering. Ann R Coll Surg Engl. 2016 Jul;98(6):358-66. doi: 10.1308/rcsann.2016.0152. Epub 2016 May 3. PubMed 27138855 ↗
  • Nallam SR, Cherukuru K, Sateesh G. Efficacy of Intravenous Ondansetron for Prevention of Postspinal Shivering during Lower Segment Cesarean Section: A Double-Blinded Randomized Trial. Anesth Essays Res. 2017 Apr-Jun;11(2):508-513. doi: 10.4103/aer.AER_26_17. PubMed 28663651 ↗
  • Botros JM, Mahmoud AMS, Ragab SG, Ahmed MAA, Roushdy HMS, Yassin HM, Bolus ML, Goda AS. Comparative study between Dexmedetomidine and Ondansteron for prevention of post spinal shivering. A randomized controlled trial. BMC Anesthesiol. 2018 Nov 30;18(1):179. doi: 10.1186/s12871-018-0640-3. PubMed 30501612 ↗

Individual participant data

Plan to share: No — It might be useful for other researchers to expand their investigations, nevertheless, in this moment it seems completed this branch of investigation.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 1, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06289335
Lead sponsor
Hospital Central "Dr. Ignacio Morones Prieto"
Responsible party
MARIO AURELIO MARTÍNEZ-JIMÉNEZ (Doctor, Hospital Central "Dr. Ignacio Morones Prieto") — Principal investigator
First posted
Mar 1, 2024
Start date
Aug 5, 2020
Primary completion
Sep 5, 2021
Completion
Jan 3, 2022
Last update
Mar 1, 2024

Study contacts

MARIO A MARTÍNEZ-JIMÉNEZ, Dr.
study director · Hospital Central "Dr. Ignacio Morones Prieto"

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2024. You cannot join it, but the record below documents what was studied.

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