Assessment of the Relationship Between Cerebral Blood Flow and Heart Rate (NCT04391465)
Assessment of the Relationship Between Cerebral Blood Flow and Heart Rate: An Electrophysiology Based Study
🩺 Plain-English Summary (8th-Grade Level)
The investigators will seek to determine the relationship between heart rate and middle cerebral artery (MCA) cerebral blood flow (CBF), as well as better understand the hemodynamic determinants of MCA CBF velocity. In order to manipulate heart rate, the investigators will recruit patients already scheduled for clinically indicated elective electrophysiological studies, where temporary pacing catheters placed in the right atrium can be used to artificially pace the heart at controlled rates. MCA CBF will be measured by transcranial Doppler ultrasound.
Who can join: Review the eligibility criteria below.
Location: Foothills Medical Center — Calgary, Alberta
Age range: 18 Years to 70 Years
🧪 Interventions in This Study
- Electrophysiological Pacing (OTHER)
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (1 Sites)
- Foothills Medical Center — Calgary, Alberta
📞 Contact the Study Coordinator
Phone: (403) 210-6152
Email: satish.raj@ucalgary.ca
Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
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💡 How to Participate
- Check the checklist above to see if you may qualify.
- Contact the study coordinator using the phone/email above.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.