Estimation of CPR Chest Compression Depth

Not Applicable

Completed

• Conditions: Cardiac Arrest
• Interventions: Behavioral: Compression depth

• Registration Number: NCT03230461
• Lead Sponsor: University Hospital Southampton NHS Foundation Trust

Brief Summary

Optimal chest compression depth during CPR is 4.56cm which is at variance with the current guidelines of 5.0-6.0cm. A change in guidelines is only worthwhile if healthcare professionals can accurately judge a subtle reduction in chest compression depth during CPR by a relatively small amount.

Detailed Description

Chest compression depth and rate during cardiopulmonary resuscitation (CPR) are important predictors of return of spontaneous circulation and survival following cardiac arrest. Stiell et al (2014) found optimal survival at a compression depth of 4.56cm, which is at variance with the current guidelines of 5.0-6.0cm. A change in guidelines is only likely to improve survival rates if healthcare professionals can accurately implement these subtle depth modifications into the basic life support (BLS) algorithm. This study aims to determine if healthcare professionals can accurately judge compression depth without real-time feedback.

Study Timeline

• Study Start: 2016-10
• Study First Submitted: 2017-07-21
• Study First Submitted QC: 2017-07-25
• Study First Posted: 2017-07-26
• Status Verified: 2017-08
• Primary Completion: 2017-08-07
• Study Completion: 2017-08-07
• Last Update Submitted: 2017-08-08
• Last Update Posted: 2017-08-09

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 100

Inclusion Criteria

• NHS professionals (staff or students), who have successfully completed a hospital-accredited basic life support (BLS) course, including a practical CPR component.

Exclusion Criteria

• Pregnancy, significant medical illness or injury that would impair delivery of chest compressions

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SEQUENTIAL

Arm && Interventions

Group	Intervention	Description
Target compression depth 4.0-5.0 cm	Compression depth	The rescuer is asked to perform two minutes of chest compressions on a manikin, aiming to compress to the target depth at a rate of 100-120/min
Target compression depth 4.5-5.5 cm	Compression depth	The rescuer is asked to perform two minutes of chest compressions on a manikin, aiming to compress to the target depth at a rate of 100-120/min
Target compression depth 5.0-6.0 cm	Compression depth	The rescuer is asked to perform two minutes of chest compressions on a manikin, aiming to compress to the target depth at a rate of 100-120/min

Primary Outcome Measures

Name	Time	Method
Compression to target window depth	Two minutes	Mean compression depth

Secondary Outcome Measures

Name	Time	Method
Compression to target rate	Two minutes	Mean compression rate

Trial Locations

Locations (1)

University Hospital Southampton; 🇬🇧 Southampton, Hampshire, United Kingdom