Noninvasive CA Monitoring Validation and Autonomic Modulation in Aneurysmal Subarachnoid Hemorrhage

Starting soon · Not applicable

Conditions studied: Subarachnoid Hemorrhage, Aneurysmal, Delayed Cerebral Ischemia, Cerebral Vasospasm, Autonomic Nervous System Diseases

In brief

This is a two-component prospective study of adult aneurysmal subarachnoid hemorrhage (aSAH) patients admitted to the Neurosciences Intensive Care Unit (NSICU) at UT Southwestern Medical Center. Component 1 (active upon IRB approval) validates Brain4Care (B4C) extensometry-derived noninvasive cerebral autoregulation (CA) indices against invasive ICP-derived equivalents in aSAH patients with open external ventricular drains (EVDs), and characterizes the prospective natural history of multi-modal CA parameter evolution through the delayed cerebral ischemia (DCI) window (admission through Day 14). Component 2 (activated upon PI readiness declaration) assesses the within-subject effect of cervical sympathetic block (CSB) and transcutaneous auricular vagal nerve stimulation (taVNS) on CA parameters in enrolled aSAH patients.

Key facts

Study ID
NCT07577739
Run by
University of Texas Southwestern Medical Center
People needed
300
Starts
2026-07-01
Expected to finish
2030-06-01
Last updated by the study team
2026-05-11

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

Where it is running

Full record on ClinicalTrials.gov

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