Non-invasive continuous blood pressure monitoring during intracranial aneurysm coil embolization

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Adults undergoing elective coil embolization for unruptured intracranial aneurysms are randomized to continuous non‑invasive blood pressure monitoring with the ClearSight system or standard invasive radial arterial catheter monitoring, with both groups monitored for cerebral oxygenation (rSO₂) during general anesthesia. The study tracks detection of intraoperative hypotension and hypertension, need for conversion to invasive monitoring, and perioperative clinical outcomes and complications. Data collected include continuous hemodynamic traces, episode frequency and duration, and any procedure‑related vascular or neurologic events. While ClearSight has shown reasonable agreement with invasive arterial pressure in other surgical populations, its role as the primary monitor in neuroendovascular procedures remains to be established.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Adult patients (≥19 and ≤80 years old) scheduled for elective coil embolization of unruptured intracranial aneurysms under general anesthesia.
* American Society of Anesthesiologists (ASA) physical status classification I-III.

Exclusion Criteria:

* Patients who do not provide informed consent.
* Patients unable to understand or follow study instructions due to physical or mental limitations.
* Patients in whom radial arterial catheterization is not feasible (e.g., peripheral vascular disease, skin disorders at the insertion site, absence of radial/ulnar artery, or orthopedic conditions of the upper extremity).
* Patients with peripheral vascular circulatory disorders.
* Patients with morbid obesity (BMI ≥ 40 kg/m²) \[Eley et al., 2021\].
* Patients who are hemodynamically unstable preoperatively or expected to be unstable during the perioperative period.

Where it's running

• Korea University Anam Hospital
  Seoul, South Korea Recruiting

Study contacts

• Principal investigator: Jang Hoon Kim, M.D., Ph.D. — Korea University Anam Hospital
• Study coordinator: Eunji Ko, M.D., Ph.D.
• Email: froken.ko@gmail.com
• Phone: +82-10-3423-8249

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.