Pulse Checks Using Femoral Artery B-Mode Ultrasound With Compressibility Assessment

NCT06491186 | Recruiting

• 1 other identifier: 1236/2024
• Study Type: observational
• Target: 69
• Locations: 1 country
• Sites: 1

Brief Summary

The goal of this prospective observational study is to investigate B-mode point-of care ultrasound with arterial compressibility assessment on the femoral artery as a method to determine the presence of a pulse and to compare it with concurrently conducted manual pulse checks.

Conditions

Cardiac Arrest, Out-Of-Hospital

Keywords

Cardiac Arrest; Out-of-hospital Cardiac Arrest; OHCA; Ultrasound; Point-Of-Care Ultrasound; POCUS; Pulse Check; POCUS Pulse Check; B-mode Ultrasound; Femoral Artery; Arterial Compressibility Assessment

Outcome Measures

Primary Outcomes (2)

• Results of POCUS pulse check

  If the femoral artery is both non-compressible and pulsatile, the POCUS pulse check will be considered positive

  During cardiac arrest, up to 45 minutes

• Results of the concurrently conducted manual pulse check

  Parallel to our study team the treating team will conduct standard care, consisting of determining the presence or absence of a pulse by palpation. The results of these manual pulse checks will be recorded by our study team.

  During cardiac arrest, up to 45 minutes

Secondary Outcomes (4)

• Arterial compressibility during chest compressions

  During cardiac arrest, up to 45 minutes

• Arterial compressibility during rhythm checks

  During cardiac arrest, up to 45 minutes

• Arterial pulsatility during rhythm checks

  During cardiac arrest, up to 45 minutes

• Time needed for POCUS pulse checks

  During cardiac arrest, up to 45 minutes

Study Arms (1)

Included patients

Other: Point of Care Ultrasound

Interventions

Point of Care Ultrasound OTHER

Point-of-care ultrasound will be used to image the femoral vessels and to assess the presence or absence of a pulse and the compressibility of the artery during rhythm checks.

Included patients

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

The study population comprises non-pregnant adults suffering out-of-hospital cardiac arrest of any cause who are treated with CPR by emergency medical services.

You may qualify if:

• Out-of-hospital cardiac arrest treated by EMS
• Minimum age of 18 years

You may not qualify if:

• Pregnancy or suspected pregnancy
• Disapproval of the treating EMS team
• Adults under legal guardianship
• Inability to perform femoral artery doppler ultrasound due to limited access to the patient and possible interference with the treating EMS team
• Inability to perform femoral artery doppler ultrasound due to injuries or anatomic abnormalities in the femoral region or necessary emergent medical interventions in the femoral region
• Decision to transfer the patient to the hospital with ongoing CPR for emergent procedures such as extracorporeal CPR before femoral artery doppler ultrasound could be attempted
• Inability to safely perform femoral artery doppler ultrasound due to environmental hazards

Sponsors & Collaborators

• Medical University of Vienna: lead
• Ludwig Boltzmann Institute Digital Health and Patient Safety: collaborator
• Emergency Medical Service of Vienna: collaborator

Study Sites (1)

Emergency Medical Service of Vienna

Vienna, 1030, Austria

RECRUITING

MeSH Terms

Conditions

Out-of-Hospital Cardiac Arrest; Heart Arrest

Condition Hierarchy (Ancestors)

Heart Diseases; Cardiovascular Diseases

Study Officials

• Philipp Metelka, MD

  Medical University of Vienna

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Philipp Metelka, MD

CONTACT

+43 699 10659528; philipp.metelka@meduniwien.ac.at

Christina Hafner, MD, PhD

CONTACT

christina.hafner@meduniwien.ac.at

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Resident

Study Record Dates

• First Submitted: May 1, 2024
• First Posted: July 9, 2024
• Study Start: May 2, 2024
• Primary Completion: December 31, 2024
• Study Completion: December 31, 2024
• Last Updated: July 9, 2024

Record last verified: 2024-06

Locations

AU (1)