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Microvascular Decompression SurgeryNCT03685032

Effects of Intraoperative Dexamethasone and Ondansetron on Postoperative Nausea and Vomiting in Microvascular Decompression Surgery

A study testing Dexamethasone, Ondansetron and 0.9% Sodium Chloride Injection in people with Microvascular Decompression Surgery and Postoperative Nausea and Vomiting, run by Khon Kaen University at 1 site in Thailand.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Postoperative nausea and vomiting (PONV) is a common problem and may lead to catastrophic complications, especially in neurosurgical cases. The aim of this study was to evaluate the effects of dexamethasone and ondansetron for preventing PONV in patients who underwent microvascular decompression surgery (MVD). Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
Dexamethasone, Ondansetron and 0.9% Sodium Chloride Injection
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
54 participants
Where
1 siteThailand
Study dates
7 Aug 2014to 16 Feb 2016
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients who were scheduled for MVD of trigeminal nerve root
  • Patients who had a physical status classification of I to III according to the American Society of Anesthesiologists, and those who had a body mass index of 18 to 35 kg/m2

Who cannot join

  • Patients on long-term administration of dexamethasone or ondansetron, those with a history of allergic reactions to dexamethasone or ondansetron, those who had undergone antiemetic therapy within 24 hr before surgery, those with underlying liver or renal failure, those who were pregnant, or those who had undergone emergency surgery.

Trial locations and contacts

1 site in 1 country.

Thailand1 site
  • Khon Kaen University

    Khon Kaen, 40002

Other trials in Thailand

About this study

Official title: Effects of Intraoperative Dexamethasone and Ondansetron on Postoperative Nausea and Vomiting in Microvascular Decompression Surgery: A Randomized Controlled Study

Postoperative nausea and vomiting (PONV) is a common problem and may lead to catastrophic complications, especially in neurosurgical cases. The aim of this study was to evaluate the effects of dexamethasone and ondansetron for preventing PONV in patients who underwent microvascular decompression surgery (MVD).

Read the detailed description

A prospective, double-blinded randomized control trial was conducted with 54 patients who underwent MVD. Patients were allocated into two groups. The study group (Gr. D) received intraoperative dexamethasone 4 mg iv and ondansetron 4 mg iv, whereas the control group (Gr. N) received placebo (0.9% normal saline 1 ml iv and 0.9% normal saline 2 ml iv). The incidence and severity of PONV were observed at 1, 2, 4 and 24 hr post-surgery.

Being tested
Dexamethasone, Ondansetron, 0.9% Sodium Chloride Injection
Medical subject headings
Postoperative Nausea and Vomiting

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • DexamethasoneDrug

    Also called Lodexa

    The 4 mg of dexamethasone in 1 ml intravenous was administrated after patient received general anesthesia

  • OndansetronDrug

    Also called Onsia

    The 4 mg of ondansetron in 2 ml intravenous was administrated at the end of the operation.

  • 0.9% Sodium Chloride InjectionDrug

    The 0.9% sodium chloride in 1 ml intravenous was administrated after patient received general anesthesia. At the end of operation, the 0.9% sodium chloride in 2 ml intravenous was administrated.

Study groups in NCT03685032
Study groupRoleWhat they receive
The study group (Gr. D)ExperimentalAfter patients received general anesthesia, a sequentially numbered opaque sealed envelope was opened. Gr. D was administered 4 mg of dexamethasone in 1 ml iv. At the end of the operation when suturing the dura mater, Gr. D received ondansetron 4 mg in 2 ml iv.
Receives: Drug: Dexamethasone; Drug: Ondansetron
the control group (Gr. N)Placebo comparatorAfter patients received general anesthesia, a sequentially numbered opaque sealed envelope was opened. Gr. N received normal saline 1 ml iv. At the end of the operation when suturing the dura mater, Gr. N received normal saline 2 ml iv.
Receives: Drug: 0.9% Sodium Chloride Injection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in incidence of postoperative nausea and vomiting

    Postoperative nausea and vomiting events was recorded by blinded anesthesiologists, blinded anesthetic nurses, and blinded ward nurses.

    Measured: The incidence was recorded at 1 hour as a baseline and changing incidences from baseline were recorded at 2 hours, 4 hours, and 24 hours.

Secondary outcomes (4)
  1. Pain score

    The intensity of postoperative pain was measured with a numeric rating scale (NRS: 0=no pain, 10=severe pain)

    Measured: The intensity of pain was recorded at 1 hour and 2 hours in the postoperative period in the recovery room and at 4 hours and 24 hours in the ward.

  2. opioid analgesics consumed

    opioid analgesics consumed was recorded by blinded anesthesiologists, blinded anesthetic nurses, and blinded ward nurses.

    Measured: The opioid analgesics used was recorded at 1 hour and 2 hours in the postoperative period in the recovery room and at 4 hours and 24 hours in the ward.

  3. severity of postoperative nausea and vomiting

    Severity of postoperative nausea and vomiting was recorded by blinded anesthesiologists, blinded anesthetic nurses, and blinded ward nurses. Level of severity of PONV (0=no symptoms; 1=mild: few symptoms and not requiring treatment; 2=moderate: presented symptoms and needed ondansetron 8 mg iv; 3=severe: persisted symptoms after received ondansetron 8 mg iv and needed re-administration of ondansetron 8 mg iv)

    Measured: The severity of postoperative nausea and vomiting was recorded at 1 hour and 2 hours in the postoperative period in the recovery room and at 4 hours and 24 hours in the ward.

  4. Antiemetics used

    Antiemetics used was recorded by blinded anesthesiologists, blinded anesthetic nurses, and blinded ward nurses.

    Measured: The antiemetic used was recorded at 1 hour and 2 hours in the postoperative period in the recovery room and at 4 hours and 24 hours in the ward.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Sep 2018
  2. Study start7 Aug 2014
  3. Primary completion16 Feb 2016
  4. Study completion16 Feb 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Double-blinded randomized control trial was conducted. The investigators allocated patients into two arm. The study group (Gr. D) received intraoperative dexamethasone 4 mg iv and ondansetron 4 mg iv, whereas the control group (Gr. N) received placebo (0.9% normal saline 1 ml iv and 0.9% normal saline 2 ml iv)
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
54 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03685032
Sponsor's protocol ID
HE571218
Status last verified
Sep 2018
First submitted
23 Sep 2018
Last updated
26 Sep 2018
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Ha SH, Kim H, Ju HM, Nam DJ, Min KT. Comparison of the antiemetic effect of ramosetron with ondansetron in patients undergoing microvascular decompression with retromastoid craniotomy: a preliminary report. Korean J Anesthesiol. 2015 Aug;68(4):386-91. doi: 10.4097/kjae.2015.68.4.386. Epub 2015 Jul 28.

    PubMed 26257852

Questions about this trial

What is this clinical trial studying?

A study testing Dexamethasone, Ondansetron and 0.9% Sodium Chloride Injection in people with Microvascular Decompression Surgery and Postoperative Nausea and Vomiting, run by Khon Kaen University at 1 site in Thailand.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Sep 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Thailand. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in incidence of postoperative nausea and vomiting (time frame: The incidence was recorded at 1 hour as a baseline and changing incidences from baseline were recorded at 2 hours, 4 hours, and 24 hours.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03685032, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Sep 2018.

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