Effectiveness of Chest Compressions With Standard vs Feedback-Assisted CPR

Summary

The objective of this educational clinical trial is to compare auditory (metronome) and audiovisual (TrueCPR) feedback systems with both standard CPR and with each other in a simulated environment, focusing on their effects on chest compression quality.

The main research questions are:

* Does the use of a metronome improve CPR performance metrics compared to standard CPR?
* Does the use of TrueCPR improve CPR performance metrics compared to standard CPR?
* Is TrueCPR more effective than the metronome in improving CPR performance metrics?

Researchers will evaluate the impact of auditory (metronome) and audiovisual (TrueCPR) feedback systems on chest compression quality by comparing them to standard CPR and to each other within a simulated clinical educational environment.

Participants:

A total of 179 participants, consisting of medical students (n = 112) and paramedic students (n = 67), will be involved in the study.

All participants will attend a 30-minute orientation session. Participants who meet the inclusion criteria and agree to participate (medicine, n = 21; paramedic, n = 62) will sign an informed consent form prior to the study.

They will then complete a preliminary assessment, including a 5-question knowledge test on high-quality CPR metrics.

Perform 2 minutes of chest-compressions-only CPR (standard CPR) on a manikin without any feedback.

All participants will be pooled and randomized. They will receive a 10-minute general briefing session after randomization.

Study Groups:

Group1: Standard-to-Metronome Group (n = 43) will:

Perform 2 minutes of chest-compressions-only CPR (standard CPR) on a manikin without any feedback.

Not receive device-specific training or use a multisensory feedback device. Take a 5-minute rest period. Perform 2 minutes of CPR using metronome feedback.

Group 2: Standard-to-TrueCPR (n = 40) will:

Perform 2 minutes of chest-compressions-only CPR (standard CPR) on a manikin without any feedback.

Receive a 30-minute TrueCPR-specific training session and use a multisensory feedback device.

Take a 5-minute rest period. Perform 2 minutes of CPR using TrueCPR feedback.

Conditions

• CPR Quality Assessment

Interventions

DEVICE

TrueCPR Multisensory Feedback Device

TrueCPR (Physio-Control, Inc., Redmond, WA, USA) is a real-time CPR feedback device that provides both visual and auditory cues to support the delivery of high-quality chest compressions. The system consists of two pads (chest and back) that measure compression depth using electromagnetic signal transmission. The device offers auditory rate guidance via a metronome and visual feedback through a color display indicating the adequacy of compression depth and recoil. Performance data-including compression depth, rate, ratio, and the percentage of compressions that are too shallow or too deep-are recorded and analyzed using dedicated software. TrueCPR delivers multisensory feedback (auditory and visual) for both professional rescuers and trainees.

DEVICE

Ambu Smartman ALS Pro+ (AW301) Simulation Manikin

The Ambu SmartMan ALS Pro+ (AW301) is an advanced simulation manikin designed to support training in both Basic and Advanced Life Support (BLS and ACLS). It features multiple operational modes, including feedback, skills, code, and application modules, with or without manikin dependency. The manikin provides real-time auditory feedback through an integrated metronome and allows online monitoring by instructors. It records performance metrics such as compression depth and rate, compression-to-decompression ratio, hand position accuracy, and number of compressions with leaning.

DEVICE

Metronome

The Ambu SmartMan ALS Pro+ (AW301), which is an advanced simulation manikin, offers real-time auditory feedback via an integrated metronome function. Devices that provide only a fixed auditory tempo-such as a metronome-are generally classified as coaching devices, because they do not measure or analyze the user's actions during CPR.

Sponsors & Collaborators

• Baskent University

  collaborator OTHER

• Betül Akbuğa Özel

  lead OTHER

Principal Investigators

• Betül Akbuğa Özel, Asst. Prof. · Ankara Yıldırım Beyazıt University, Faculty of Medicine, Ankara Bilkent City Hospital, Department of Emergency Medicine

Study Design

Allocation

RANDOMIZED

Purpose

OTHER

Masking

NONE

Model

PARALLEL

Eligibility

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2016-04-22

Primary Completion

2016-05-02

Completion

2016-05-02

Countries

• Turkey (Türkiye)

Study Locations