Study Comparing Non-Invasive Blood Pressure Monitoring to Radial Arterial Catheterization During Coil Embolization for Brain Aneurysms

What this Trial Is About

Researchers are studying whether non-invasive continuous blood pressure monitoring NVBP with the ClearSight system can safely replace invasive radial arterial catheterization IABP during coil embolization for unruptured intracranial aneurysms. The trial aims to see if NVBP detects blood pressure changes during surgery as reliably as IABP and whether NVBP reduces the need for invasive monitoring without affecting patient safety or outcomes. This randomized controlled trial compares patients receiving NVBP versus standard IABP monitoring during the procedure. Participants are randomly assigned to either NVBP monitoring using a finger cuff device or to traditional invasive arterial blood pressure monitoring via radial artery catheter. Both groups also receive cerebral oxygenation monitoring with near-infrared spectroscopy. The NVBP group does not have radial arterial catheterization but may have a femoral arterial catheter as a backup for safety, which is not visible to the anesthesiologist but recorded for review. Standard anesthesia and postoperative care protocols are followed for all participants. During the study, patients will have continuous blood pressure and cerebral oxygen monitoring throughout the embolization procedure. Researchers will track blood pressure events, use of medications to control blood pressure, cerebral oxygen desaturation, intensive care admissions, hospital stay length, and complications up to 30 days after surgery. The main outcome measured is the occurrence of intraoperative hypotension or hypertension events. Safety and clinical outcomes will be monitored carefully to evaluate whether NVBP can offer a less invasive monitoring option.

NOn-inVAsive Blood Pressure Monitoring in Intracranial Aneurysm Embolization