Compression Is Life In Cardiac Arrest - Human Study (CILICA-HS). (CILICA-HS)

March 21, 2022 updated by: University Hospital, Caen

Assessment of the Impact of Relay Timing and CPRmeter Guidance on the Quality of External Chest Compression: Compression Is Life In Cardiac Arrest - Human Study (CILICA-HS).

The management of out-of-hospital cardiac arrest is complex and multifactorial. With an incidence between 5 and 15 per 10,000 (46,000 patients per year in France) and a survival rate of only 5% to 15%, the room for improvement remains significant even today and is based on fast and optimal care. Thus French and international recommendations insist on the central element of external chest compression (ECC) and especially its quality (Monsieurs KG and Al. Resuscitation 2015; 95: 1-80). Improving the chest compression fraction (CCF) by limiting time without cardiac massage (No-Flow) is a second major point of the recommendations (Vaillancourt C and Al. Resuscitation 2011; 82: 1501-7). The survival of cardiac arrest victims is closely related on this No-Flow time. The principle of the chain of survival (early warning - ECC - defibrillation - resuscitation) implies that the deterioration of a single link threaten the whole of the care. To meet these qualitative needs, ECC guidance devices have been developed. They make possible to improve the quality of the ECC achieved (Hostler D and Al. BMJ 2011; 342d512). Their use is one of the areas of improvement mentioned in the recommendations. Our team studied in simulation the prolonged effects of guidance on the quality of the ECC during a prolonged resuscitation, with encouraging results (Buléon C and Al. Am J Emerg Med 2016; 34: 1754-60). The investigators propose a study evaluating the efficiency of the guidance of the ECC and the impact of the time of relay on the CCF. The investigators formulate two hypotheses that they wish to test simultaneously using a 2x2 factorial design, in a multicenter randomized trial. The first assumption is that a 4-minute relay rate improves the CCF (by reducing the No-Flow time) compared to the currently recommended 2-minute relay rate. The second hypothesis is that a guiding device improves the quality of the ECC.

This study should, over a period of 2 years, include 500 patients with cardiac arrest for whom specialized resuscitation is undertaken. The investigators hope by this study to improve the knowledge on the optimal rhythm of the ECC and to validate "in vivo" the interest for the guidance found on manikin. This study should make it possible to clarify the recommendations with a high level of evidence in this field and thus contribute to improving the prognosis of the victims of an out-of-hospital cardiac arrest.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

The management of out-of-hospital cardiac arrest is complex and multifactorial. With an incidence between 5 and 15 per 10,000 (46,000 patients per year in France) and a survival rate of only 5% to 15%, the room for improvement remains significant even today and is based on fast and optimal care. Thus French and international recommendations insist on the central element of external chest compression (ECC) and especially its quality (Monsieurs KG and Al. Resuscitation 2015; 95: 1-80). Improving the chest compression fraction (CCF) by limiting time without cardiac massage (No-Flow) is a second major point of the recommendations (Vaillancourt C and Al. Resuscitation 2011; 82: 1501-7). The survival of cardiac arrest victims is closely related on this No-Flow time. The principle of the chain of survival (early warning - ECC - defibrillation - resuscitation) implies that the deterioration of a single link threaten the whole of the care. To meet these qualitative needs, ECC guidance devices have been developed. They make possible to improve the quality of the ECC achieved (Hostler D and Al. BMJ 2011; 342d512). Their use is one of the areas of improvement mentioned in the recommendations. Our team studied in simulation the prolonged effects of guidance on the quality of the ECC during a prolonged resuscitation, with encouraging results (Buléon C and Al. Am J Emerg Med 2016; 34: 1754-60). The investigators propose a study evaluating the efficiency of the guidance of the ECC and the impact of the time of relay on the CCF. The investigators formulate two hypotheses that they wish to test simultaneously using a 2x2 factorial design, in a multicenter randomized trial. The first assumption is that a 4-minute relay rate improves the CCF (by reducing the No-Flow time) compared to the currently recommended 2-minute relay rate. The second hypothesis is that a guiding device improves the quality of the ECC.

This study should, over a period of 2 years, include 500 patients with cardiac arrest for whom specialized resuscitation is undertaken. The investigators hope by this study to improve the knowledge on the optimal rhythm of the ECC and to validate "in vivo" the interest for the guidance found on manikin. This study should make it possible to clarify the recommendations with a high level of evidence in this field and thus contribute to improving the prognosis of the victims of an out-of-hospital cardiac arrest.

Cardiac arrest (CA) remains a challenge for pre-hospital care. With an incidence of between 5 and 15 per 10,000 (46,000 patients per year in France) and a survival rate of only 5% to 15%, there is yet room for improvement in treatment to reduce morbi-mortality of these patients. The quality of cardiopulmonary resuscitation (CPR) is at the heart of the last three five-year recommendations. (1-3) The latest recommendations emphasize the importance for professionals to work at the highest quality of CPR and External Chest Compression (ECC) possible. (3) The ratio of the time during which the ECC is performed (Low-Flow) to the total time of the resuscitation is referred to as the Chest Compression Fraction (CCF). During CPR, it is essential for the patient's survival to minimize ECC disruption times and therefore to increase the CCF, as this is an independent element in CA survival's improvement. (4,5) ECC interruptions are deleterious to at least two titles. First, they are a source of direct stop in cerebral and coronary perfusions potentially altering the neurological prognosis and the probability of Return of Spontaneous Circulation. (6) Secondly, the quality of the cardiac output generated by the ECC at the time of resuming of the ECC after an interruption is less good for more than 30 seconds: time need for that several chest compressions can restore the best flow possible. (6,7) Reducing these interruptions and improving the ECC is therefore a major goal of improving CPR. The guidelines are that CCF must be greater than 60% and some experts estimate that a CCF of 80% is possible. (8,9) The outcome of patients with pre-hospital CA is significantly, positively and independently correlated with the consistency to different CCF targets, ECC frequency, ECC depth, and brief pre-external electric shock pause (<10 seconds). (10) There is evidence that ECC's guidance improves adequacy to guidelines and allows to be closer with the ECC frequency, depth and release objectives. (11) The investigators have proved in simulation that the guidance of the ECC delays the deterioration of the overall quality of the ECC and its components (frequency, depth and relaxation) related to fatigue during a prolonged ECC beyond the 2 ECC relay minutes currently recommended. (12) Strategies to get closer with the guidelines regarding the quality of the ECC associated with an improvement in CCF should add or even enhance their beneficial effects for the management of CA victims. Achieving high quality CPR requires the measurement of quality of CPR (ECC and CCF). (13,14) This idea of a support strategy enhanced by "bundles" of concepts is developing in the literature. Thus Cheskes S et al. Describe a "high quality CPR" such as the association of a CCF greater than 70% and achievement of the objectives of the recommendations for the frequency and depth of the ECC. (15) The place of devices for guiding the quality of the ECC needs to be specified. Indeed, studies of their use in real-life situations are criticized for their methodological qualities and their size. (16) The use of a real-time guidance device is proposed as a possibility in the latest guidelines without being an indispensable element due to the lack of current evidence. (3) Its use or non-use does not imply any obvious loss of chance for patients. Evidence as to its usefulness therefore remains to be sought.

For this reason, the investigators wish, through an original, randomized, multi-center study, to provide some answers to the questions about the possibility of an improvement in CCF by the lengthening of the time between two ECC relays and the effect of guidance on the quality of the ECC. The design of the study will also allow to approach a possible combined effect of ECC relays rhythm and guidance. The currently recommended duration of a two-minute ECC cycle between two relays does not have a consistent evidence based and corresponds to a duration for which the ECC effort can be maintained in principle with efficiency. (3) Objective measures have shown that the quality of the ECC can be maintained beyond 2 minutes. Extending the duration of an ECC cycle could reduce the number of ECC interruptions and thus improve the CCF.

The investigators therefore formulate two hypotheses that they wish to test simultaneously using a 2x2 factorial design, in a multicenter randomized trial. The first assumption is that a 4-minutes relay rhythm improves the CCF (by reducing the No-Flow time) compared to the currently recommended 2-minutes relay rhythm. The second hypothesis is that a guiding device improves the quality of the ECC.

The CPRmeter® (guidance device used in this study) will record data on the ECC and its quality (depth, frequency, relaxation, CPRmeter® use time, No-Flow time and Low-Flow time) as well as ECC guidance for the group which will benefit from it (the other group will have the screen masked by a screen cap).

This study should, over a period of 2 years, include 500 major patients presenting a non-traumatic CA for whom a specialized CPR is undertaken. The investigators hope by this study to improve the knowledge on the optimal rhythm of the CEE and to validate "in vivo" the interest for the guidance found on manikin. This study should clarify the guidelines with a high level of evidence in this area and thus contribute to improving the prognosis of victims of out-hospital CA.

Study Type

Interventional

Enrollment (Anticipated)

500

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • France
    • Normandy
      • Caen, Normandy, France, 14033
        • Recruiting
        • University Hospital of Caen

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Major person
  • Victim of a cardiorespiratory arrest
  • Eligible for inclusion procedure in immediate life emergency
  • Affiliated to the social security system

Exclusion Criteria:

  • Minor person.
  • Pregnant woman over 6 months old or breastfeeding.
  • Known incurable disease.
  • Palliative care in progress.
  • Decision not to resuscitate from the patient (anticipated directives) or from the medical team.
  • Traumatic cardiac arrest.
  • Impossibility or contraindication to the use of the External Chest Compression guidance system.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: Unguided 2 minutes (U2)

The External Chest Compression are performed without guidance of the CPRmeter device (according to the current guidelines).

The duration or rhythm of a relay during which a rescuer performs External Chest Compression before being relayed by another rescuer is 2 minutes according to the current guidelines.
Experimental: Unguided 4 minutes (U4)

The External Chest Compression are performed without guidance of the CPRmeter device (according to the current guidelines).

The duration or rhythm of a relay during which a rescuer performs External Chest Compression before being relayed by another rescuer is 4 minutes. (Rhythm of a relay 4 minutes)
Other: Rhythm of a relay 4 minutes
The duration or rhythm of a relay is the time during which a rescuer performs External Chest Compression before being relayed by another rescuer. This time is 2 minutes in non intervention group according to the current guidelines and 4 minutes in experimental group.
Experimental: Guided 2 minutes (G2)
The External Chest Compression are performed with guidance of the CPRmeter device. (Guidance of the External Chest Compression) The duration or rhythm of a relay during which a rescuer performs External Chest Compression before being relayed by another rescuer is 2 minutes according to the current guidelines.
Other: Guidance of the External Chest Compression
The CPRmeter® device is positioned on the patient's chest with a disposable adhesive. In the situation of guidance of the External Chest Compression the rescuers have access in real time on the screen to visual feedback on the quality of the External Chest Compression performed and indications of possible corrections to improve the quality of the External Chest Compression . In the case of non-guidance of the External Chest Compression , a mask is position on the screen in order to hide the feedback information.
Other Names:
  • CPRmeter's feedback
Experimental: Guided 4 minutes (G4)
The External Chest Compression are performed with guidance of the CPRmeter device. (Guidance of the External Chest Compression) The duration or rhythm of a relay during which a rescuer performs External Chest Compression before being relayed by another rescuer is 4 minutes. (Rhythm of a relay 4 minutes)
Other: Rhythm of a relay 4 minutes
The duration or rhythm of a relay is the time during which a rescuer performs External Chest Compression before being relayed by another rescuer. This time is 2 minutes in non intervention group according to the current guidelines and 4 minutes in experimental group.
Other: Guidance of the External Chest Compression
The CPRmeter® device is positioned on the patient's chest with a disposable adhesive. In the situation of guidance of the External Chest Compression the rescuers have access in real time on the screen to visual feedback on the quality of the External Chest Compression performed and indications of possible corrections to improve the quality of the External Chest Compression . In the case of non-guidance of the External Chest Compression , a mask is position on the screen in order to hide the feedback information.
Other Names:
  • CPRmeter's feedback

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Chest Compression Fraction
Time Frame: 1 day
The Chest Compression Fraction (in percentage) corresponds to the resuscitation time during which a External Chest Compression is performed (Low Flow) related to the patient's management time by the prehospital rescue team.
1 day
Correct Compression Score
Time Frame: 1 day
The correct compression score (in percentage) corresponds to a External Chest Compression for which simultaneously the depth is correct (50 to 60 mm), the frequency is correct (100 to 120 / min) and the relaxation is correct (<2500 g) .
1 day

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Depth of External Chest Compression
Time Frame: 1 day
The depth of External Chest Compression (in millimeters) continuously recorded by the guidance system (average and percentage correct).
1 day
Frequency of External Chest Compression
Time Frame: 1 day
The frequency of External Chest Compression (in number of compression per minute) recorded continuously by the guidance system (average and percentage correct)....
1 day
Relaxation of External Chest Compression
Time Frame: 1 day
The relaxation of External Chest Compression corresponds to the residual force (in grams) recorded continuously by the guidance system (average and percentage correct)
1 day
Subjective rescuers' fatigue
Time Frame: 1 day
The subjective fatigue assessed by rescuers who performed External Chest Compression using the Borg scale (average of the Borg Scale values of rescuers)
1 day
The delays and durations of care
Time Frame: 1 day
The delays and durations of care (in minutes and seconds) based on the following events: cardiac arrest time, start time of the External Chest Compression, start time of resuscitation by the prehospital rescue team, end time of resuscitation (ROSC or death of the patient).
1 day
No-Flow and Low-Flow times
Time Frame: 1 day
The times (in minutes and seconds) of No-Flow (time during which no External Chest Compression is performed) and Low-Flow (time during which External Chest Compression is performed, generating a minimum flow rate of organs).
1 day
Recuperation of Spontaneous Circulation
Time Frame: 1 day
The rate of Recuperation of Spontaneous Circulation (percentage).
1 day
survival at hospital arrival
Time Frame: 1 day
The rate of survival at hospital arrival
1 day
Neuron Specific Enolase
Time Frame: Day 1 and day 3
The serum Neuron Specific Enolase level (ng/mL)
Day 1 and day 3
Survival
Time Frame: Day 2 and one month.
The survival rate.
Day 2 and one month.
Cerebral Performance Category Score
Time Frame: up to one month.
Cerebral Performance Category Score as discribe in Wijdicks EFM et al. Neurology 2006;67:203-10.
up to one month.

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Demographic data
Time Frame: Day 1
Demographic data of the population (sexe, age, suspect cause of cardiac arrest, etc)
Day 1

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Hospital, Caen

Investigators

  • Principal Investigator: Clement BULEON, MD, University Hospital of Caen
  • Study Chair: Pierre-Yves GUEUGNIAUD, MD, PhD, University Hospital of Lyon
  • Study Chair: Eric ROUPIE, MD, PhD, University Hospital of Caen

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 1, 2019

Primary Completion (Anticipated)

November 30, 2024

Study Completion (Anticipated)

January 1, 2025

Study Registration Dates

First Submitted

January 24, 2019

First Submitted That Met QC Criteria

January 25, 2019

First Posted (Actual)

January 28, 2019

Study Record Updates

Last Update Posted (Actual)

March 22, 2022

Last Update Submitted That Met QC Criteria

March 21, 2022

Last Verified

March 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2018-A02000-55
  • 17-248 (Other Identifier: CHU Caen)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Cardiac Arrest

Clinical Trials on Rhythm of a relay 4 minutes

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Israel

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe