Stroke Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- People who have been referred by their doctor for a standard heart ultrasound (echocardiogram) with a bubble study
Who may not be able to join:
- People who are unable to give their informed consent to take part
- People in whom a drip (intravenous line) cannot be inserted
- People who are unable to perform a Valsalva manoeuvre on their own (this involves bearing down or holding your breath to create pressure — confirm with trial site)
- People who wish to keep a face mask on during the procedure
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: Dr. David Messika-Zeitoun, MD, Ottawa Heart Institute Research Corporation
Phone: 6136967337
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Rate of detection of PFO by Self-Directed Valsalva Maneuver and Goal-Directed Valsalva Maneuver.
Can't join this trial?
Data last synced from ClinicalTrials.gov: 7 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.