Clinical trials: Microemboli
Thoracic Aortic Aneurysm, Thoracic Aortic Dissection
Cerebral Hemodynamics and Microemboli During Placement of Relay®Branch Thoracic Stent-Graft System
This is an observational cohort study addressing the incidence of cerebral microemboli and alterations of cerebral hemodynamic physiology of the Relay®Branch thoracic stent-graft system.
- Conditions
- Thoracic Aortic Aneurysm, Thoracic Aortic Dissection, Microemboli
- Trial name
- CHaMP (NCT05155956)
- Testing
- transcranial Doppler ultrasonography (TCD)
- Where
- 2 sites in United States
- Volunteers
- 20 people
- Sponsor
- University of Pennsylvania
Microemboli, Stroke
A Multicenter Study to Optimize Microembolic Signal Classification Based on Double--Blind Multiparametric Assessment by Human Experts Using an Universal Graphical Interface [MESOMEGA]
Microembolic signals (MES) is a powerful predictor of future embolic events. This study aims to develop and validate a accurate model of classification of MES obtained by transcranial Doppler.
- Conditions
- Microemboli, Stroke, Transcranial Doppler Ultrasound
- Trial name
- MESOMEGA (NCT07172165)
- Testing
- Expert double-blind evaluation
- Where
- Portugal
- Volunteers
- 850 people
- Sponsor
- Universidade do Porto
Ischemic Stroke, Embolic Stroke
Norwegian Microemboli in Acute Stroke Study
BACKGROUND: The cause of ischemic stroke remains undetermined in 30-40% of the cases, but circulating blood clots (thromboemboli) are a postulated common denominator in approx. 75% of patients.
- Conditions
- Ischemic Stroke, Embolic Stroke, Microemboli
- Trial name
- NOR-MASS (NCT03543319)
- Where
- Norway
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Haukeland University Hospital
Cerebral Microemboli
Tissue Oxygen Index and Pulsatility Index in Orthopedic Surgery: a NIRS and TCD Pilot Trial
Cerebral microemboli (ME) are frequently generated during major orthopaedic surgery. The primary objective of this study was applying novel transcranial Doppler (TCD) ultrasound software algorithm to quantify (ME load/15 minutes)…
- Trial name
- NCT02340416
- Testing
- Transcranial Doppler Ultrasound, DWL Doppler BoxX
- Where
- Austria
- Volunteers
- 50 people
- Sponsor
- Medical University of Vienna
Cardiovascular Disease, Mitral Valve Repair
Carbon Dioxide Insufflation on Cerebral Microemboli
The purpose of this study is to determine if blowing carbon dioxide into the surgical field during open-heart surgery to displace retained chest cavity air from the atmosphere will decrease the number of microembolic being…
- Conditions
- Cardiovascular Disease, Mitral Valve Repair, Cerebral Microemboli, Cognitive Decline
- Trial name
- NCT00715845
- Testing
- Carbon dioxide insufflation
- Where
- Canada
- Volunteers
- 20 people
- Sponsor
- University Health Network, Toronto