About this trial
Carotid artery stenting (CAS) prevents stroke but carries risks of perioperative cerebral embolism. Transcranial Doppler (TCD) ultrasound can detect microemboli during CAS and may offer therapeutic benefits through ultrasound-enhanced thrombolysis. Trials like SONOBUSTER and SONOBIRDIE suggest TCD reduces new brain infarctions during carotid procedures. The TCD-ICAS trial will investigate whether TCD application during and after CAS reduces perioperative cerebral emboli and improves outcomes.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age ≥ 40 years old;
Patients with severe stenosis of the internal carotid artery;
Planned for carotid artery stent;
Modified Rankin Scale score ≤ 2;
Disqualifiers
Comorbid conditions with severe infections or severe diseases of the liver, kidney, hematopoietic system, endocrine system, etc.;
Occurrence of intracranial hemorrhage (cerebral parenchymal hemorrhage, subarachnoid hemorrhage, subdural/epidural hemorrhage) within 90 days prior to enrollment;
Severe hematological disorders or significant coagulation abnormalities;
Pregnant or breastfeeding women;
Trial design
Parallel
Treatments tested in this trial
Transcranial Doppler
DeviceTCD treatment (1.6 MHz, 0.274 MPa) from femoral artery puncture until 30-60 minutes after procedure completion
Treatment groups
Trial outcomes
Primary outcomes
number of new Magnetic Resonance Imaging - Diffusion Weighted Imaging lesions
Secondary outcomes
total volume of new Magnetic Resonance Imaging - Diffusion Weighted Imaging lesions
number of new Magnetic Resonance Imaging - Diffusion Weighted Imaging lesions >0.5 mL
composite of ischemic stroke, transient ischemic attack (TIA), or death
intracranial hemorrhage on neuroimaging
Sponsors and contacts
Click on the lead sponsor to view all of their trials.