ClinicalTrials.gg
Status unknownNCT02766595Updated May 10, 2016

Does Body Positioning Affect the Yield of Hyperventilation in Routine Pediatric Electroencephalography - EEG Studies?

An interventional study of hyperventilation while sitting up during routine EEG in Epilepsy, Absence, sponsored by Meir Medical Center. Status unknown. Open to participants aged 4 Years to 10 Years. Per ClinicalTrials.gov, last updated 2016-05-10.

Sponsored by Meir Medical Center · Not applicable, Interventional, and Diagnostic

The sponsor has not verified this record recently (last verified Mar 2016), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Not applicable
Ages
4 Years to 10 Years
Sex
All
01

Study summary

Children referred for routine EEG studies for suspected absence seizures will be asked, upon caregiver's informed consent, to perform 3 minutes of hyperventilation both in the supine position and while sitting up. We aim to demonstrate that hyperventilation is more effective in eliciting absence seizures in a sitting position than while lying down.

Read the detailed description

Hyperventilation is a very effective means of eliciting absence seizures in children with absence epilepsy. Worldwide EEG protocols for routine EEG recording include 3 minutes of hyperventilation. The whole EEG recording, including hyperventilation, is performed with the child lying down on a bed/coach. Our clinical experience suggests that the body position may affect the yield of hyperventilation in provoking the absence event. That is, hyperventilation may be more effective when the child is sitting up, Therefore, children referred for a routine EEG for suspected absence seizures will add 3 minutes of hyperventilation on a sitting position to the routine 3 minutes of supine hyperventilation. At least 5 minutes of rest will be allotted between both procedures.

Patients' caregivers will sign an informed consent form. Patients will randomly be divided into 2 groups: one group will first perform supine hyperventilation followed by sitting hyperventilation; the second group will perform hyperventilation in the opposite order, ie, first sitting up and then in supine position.

02

Conditions studied

  • Epilepsy, Absence

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03

In context

Epilepsy, Absence

24 studies on the registry are indexed under Epilepsy, Absence; 2 are open to participants now.

This study's planned enrollment of 50 is above the median of 20 across 17 interventional studies indexed under Epilepsy, Absence.

Browse Epilepsy, Absence studies →

Lead sponsor

Meir Medical Center is the lead sponsor of 401 studies on the registry; 26 are open to participants now.

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

04

Who can participate

Ages eligible
4 Years to 10 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Children referred for a routine EEG for suspected absence epilepsy

Exclusion criteria

Exclusion Criteria:

  • Patients unable to perform hyperventilation
  • Children previously diagnosed with absence epilepsy
  • Children receiving antiepileptic drugs
05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
50 participants (estimated)

Study arms

  • Other
    hyperventilation

    Non-drug: performing hyperventilation while sitting up during routine EEG

    Other: hyperventilation while sitting up during routine EEG

Interventions

  • Otherhyperventilation while sitting up during routine EEG

    Child will be asked to perform hyperventilation while lying down as well as while sitting up

06

What researchers measure

Primary outcomes

  1. Differences in elapsed time (in seconds) to onset of absence seizure between lying supine and sitting up during hyperventilation in routine EEG.

    patients to be divided into 3 groups: Response A: occurrence of absence within 0-60 seconds; response B: within 60 - 120 seconds; response C: no occurrence of absence.

    Time frame: 6 months

Secondary outcomes

  1. Influence of order of performing hyperventilation, first supine and then sitting up, or vice-versa, on the time (in seconds) to occurrence of ansence seizures

    Response A: 0 - 60 secs; response B: 60 - 120 seconds; response C: no occurrence of absence

    Time frame: 6 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jun 2016, a primary completion of Jan 2017 and a completion of Jun 2017. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 10, 2016
First posted
May 10, 2016
Start
Jun 2016
Primary completionEst.
Jan 2017
CompletionEst.
Jun 2017
Last update
May 10, 2016
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 10, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02766595
Responsible party
Sponsor
First posted
May 10, 2016
Start date
Jun 2016
Primary completion
Jan 2017 (estimated)
Completion
Jun 2017 (estimated)
Last update
May 10, 2016

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Mar 2016. You cannot join it, but the record below documents what was studied.

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