Using optic nerve sheath diameter and duplex imaging to predict outcomes in cardiac arrest patients

Optic Nerve Sheath Diameter, Carotid Duplex and Transcranial Duplex as a Prognostic Predicting Factor in Post-cardiac Arrest Patients

Observational National Taiwan University Hospital · NCT04510363

This study is testing if measurements from the optic nerve and blood flow in the neck can help doctors predict how well patients will recover after a cardiac arrest.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages20 Years and up
SexAll
SponsorNational Taiwan University Hospital Academic / other
Locations1 site (Taipei)
Trial IDNCT04510363 on ClinicalTrials.gov

What this trial studies

This observational study investigates the relationship between optic nerve sheath diameter (ONSD), carotid duplex, and transcranial duplex measurements in post-cardiac arrest patients. The aim is to analyze these parameters alongside demographic and resuscitation data to predict neurological outcomes. ONSD is a quick and repeatable measure associated with intracranial pressure, while duplex imaging provides noninvasive assessments of cerebrovascular function. The study seeks to establish these factors as prognostic indicators in the management of post-arrest care.

Who should consider this trial

Good fit: Ideal candidates for this study are adult patients who have experienced non-traumatic cardiac arrest and achieved return of spontaneous circulation.

Not a fit: Patients who have experienced traumatic cardiac arrests or those who do not achieve return of spontaneous circulation after resuscitation may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the ability to predict neurological outcomes in cardiac arrest patients, leading to more tailored and effective management strategies.

How similar studies have performed: While the specific combination of ONSD and duplex imaging in this context may be novel, similar studies have shown promising results in using these measures for neuroprognosis.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

. Non-traumatic cardiac arrest adult patients achieving return of spontaneous circulation after resuscitation

Exclusion Criteria:

* traumatic cardiac arrests
* non-traumatic arrest patients without return of spontaneous circulation after resuscitation

Where this trial is running

Taipei

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Neurologic Dysfunction
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.