Trial document




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  DRKS00015297

Trial Description

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Title

Evaluation of bystander-CPR based on a video sequence

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Trial Acronym

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URL of the Trial

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Brief Summary in Lay Language

Medical laypersons and bystanders often lack confidence or are overextended in case of providing cardiopulmonal resuscitation. One approach over the last years consisted of supporting laypersons by dispatcher assistance in cardiopulmonal resuscitation in order to improve CPR quality.
Live video transfer via smartphone could be a new approach in order to further optimize bystander resuscitation. Since smartphones with cameras and visual- telephony are widely spread CPR quality could be judged by medical professionals and additional feedback could be given.

In this study we investigate whether the evaluation of CPR quality in video sequences is possible. Additionally, we investigate the influence of different video resolutions on the ability to evaluate the CPR quality.
Therefore, seven video sequences of 15 seconds are taped in high quality definition. In a second step the definition of the video sequences are reduced artificially (medium and low quality). The video sequences show thorax compressions with correct performance (according to the European Resuscitation Council Guidelines 2015) as well as typical and frequent mistakes in layperson CPR. Afterwards, CPR quality is evaluated depending on the different resolution levels. Therefore, the video sequences are presented to a) paramedics and b) emergency physicians. CPR quality parameters consist of compression depth, compression rate, hand position and thorax release according to the different video resolutions.
Additionally, we investigate the influence of different camera perspectives on the ability of quality evaluation of the presented thorax compressions. Therefore, local ethics committee gave approval after amendment on 12th of February 2019. Evaluation is performed identically and by the same groups of evaluaters as described above.

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Brief Summary in Scientific Language

Medical laypersons and bystanders often lack confidence or are overextended in case of providing cardiopulmonal resuscitation. One approach over the last years consisted of supporting laypersons by dispatcher assistance in cardiopulmonal resuscitation in order to improve CPR quality.
Live video transfer via smartphone could be a new approach in order to further optimize bystander resuscitation. Since smartphones with cameras and visual- telephony are widely spread CPR quality could be judged by medical professionals and additional feedback could be given.

In this study we investigate whether the evaluation of CPR quality in video sequences is possible. Additionally, we investigate the influence of different video resolutions on the ability to evaluate the CPR quality.
Therefore, seven video sequences of 15 seconds are taped in high quality definition. In a second step the definition of the video sequences are reduced artificially (medium and low quality). The video sequences show thorax compressions with correct performance (according to the ERC guidelines 2015) as well as typical and frequent mistakes in layperson CPR (inadequate compression depth and rate, wrong hand position, incorrect thorax release). Afterwards, CPR quality is evaluated depending on the different resolution levels. Therefore, the video sequences are presented to a) paramedics and b) emergency physicians. CPR quality parameters consist of compression depth, compression rate, hand position and thorax release according to the different video resolutions.
Additionally, we investigate the influence of different camera perspectives on the ability of quality evaluation of the presented thorax compressions. Therefore, local ethics committee gave approval after amendment on 12th of February 2019. Evaluation is performed identically and by the same groups of evaluaters as described above.

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Organizational Data

  •   DRKS00015297
  •   2018/08/21
  •   [---]*
  •   yes
  •   Approved
  •   18-130, Ethik-Kommission der Medizinischen Fakultät der Universität zu Köln
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Secondary IDs

  • [---]*
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Health Condition or Problem studied

  •   cardiopulmonal resuscitation
  •   I46.0 -  Cardiac arrest with successful resuscitation
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Interventions/Observational Groups

  •   Paramedic: Evaluation of 7 to 10 randomly selected video sequences, each 15 seconds with randomly assigned quality definition (high, medium, low):
    1) correct thorax compression (compression depth 5-6cm, compression rate 110/min, correct hand position, complete thorax release)
    2) compression rate 80/min, others correct
    3) compression rate 140/min, others correct
    4) compression depth 3-4 cm, others correct
    5) compression depth > 6cm, others correct
    6) wrong hand position (epigastrium), others correct
    7) incomplete thorax release (remaining depth > 2cm), others correct
  •   Emergency physician: Evaluation of 7 to 10 randomly selected video sequences, each 15 seconds with randomly assigned quality definition (high, medium, low):
    1) correct thorax compression (compression depth 5-6cm, compression rate 110/min, correct hand position, complete thorax release)
    2) compression rate 80/min, others correct
    3) compression rate 140/min, others correct
    4) compression depth 3-4 cm, others correct
    5) compression depth > 6cm, others correct
    6) wrong hand position (epigastrium), others correct
    7) incomplete thorax release (remaining depth > 2cm), others correct
  •   Paramedic: Evaluation of 7 to 10 randomly selected video sequences, each 15 seconds showing randomly assigned camera position:
    1) correct thorax compression (compression depth 5-6cm, compression rate 110/min, correct hand position, complete thorax release)
    2) compression rate 80/min, others correct
    3) compression rate 140/min, others correct
    4) compression depth 3-4 cm, others correct
    5) compression depth > 6cm, others correct
    6) wrong hand position (epigastrium), others correct
    7) incomplete thorax release (remaining depth > 2cm), others correct
  •   Emergency physician: Evaluation of 7 to 10 randomly selected video sequences, each 15 seconds, showing thorax compression from one of 4 camera position (randomly assigned):
    1) correct thorax compression (compression depth 5-6cm, compression rate 110/min, correct hand position, complete thorax release)
    2) compression rate 80/min, others correct
    3) compression rate 140/min, others correct
    4) compression depth 3-4 cm, others correct
    5) compression depth > 6cm, others correct
    6) wrong hand position (epigastrium), others correct
    7) incomplete thorax release (remaining depth > 2cm), others correct
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Characteristics

  •   Non-interventional
  •   Other
  •   Other
  •   Blinded
  •   patient/subject, assessor
  •   Other
  •   Other
  •   Parallel
  •   N/A
  •   N/A
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Primary Outcome

Judges evaluate the laptop-presented video sequences (each 15 s) with the help of a questionnaire: compression depth, compression rate, hand position and thorax release depending on different video resolutions.

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Secondary Outcome

-

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Countries of Recruitment

  •   Germany
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Locations of Recruitment

  • University Medical Center 
  • other 
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Recruitment

  •   Planned
  •   2019/06/05
  •   100
  •   Monocenter trial
  •   National
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Inclusion Criteria

  •   Both, male and female
  •   18   Years
  •   65   Years
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Additional Inclusion Criteria

emergency physicians being active in EMS, dispatchers being active in EMS

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Exclusion Criteria

none

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Addresses

  • start of 1:1-Block address primary-sponsor
    • Uniklinik KölnKlinik für Anästhesiologie und Operative Intensivmedizin
    • Mr.  Dr. med.  Christopher  Plata 
    • Kerpener Straße 62
    • 50937  Köln
    • Germany
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    • Uniklinik KölnKlinik für Anästhesiologie und Operative Intensivmedizin
    • Mr.  Dr. med.  Christopher  Plata 
    • Kerpener Straße 62
    • 50937  Köln
    • Germany
    end of 1:1-Block address scientific-contact
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    • Uniklinik KölnKlinik für Anästhesiologie und Operative Intensivmedizin
    • Mr.  Dr. med.  Christopher  Plata 
    • Kerpener Straße 62
    • 50937  Köln
    • Germany
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Sources of Monetary or Material Support

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    • Uniklinik KölnKlinik für Anästhesiologie und Operative Intensivmedizin
    • Mr.  Dr. med.  Christopher  Plata 
    • Kerpener Straße 62
    • 50937  Köln
    • Germany
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Status

  •   Recruiting planned
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Trial Publications, Results and other Documents

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* This entry means the parameter is not applicable or has not been set.