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Physiological Response of Quality Cardiopulmonary Resuscitation, Crossover Trial on Mannequin in Extreme Temperature Conditions

Author

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  • José Luis Martin-Conty

    (Faculty of Health Sciences, Universidad de Castilla la Mancha, 45600 Talavera de la Reina (Toledo), Spain)

  • Begoña Polonio-López

    (Faculty of Health Sciences, Universidad de Castilla la Mancha, 45600 Talavera de la Reina (Toledo), Spain)

  • Clara Maestre-Miquel

    (Faculty of Health Sciences, Universidad de Castilla la Mancha, 45600 Talavera de la Reina (Toledo), Spain)

  • Alicia Mohedano-Moriano

    (Faculty of Health Sciences, Universidad de Castilla la Mancha, 45600 Talavera de la Reina (Toledo), Spain)

  • Carlos Durantez-Fernández

    (Faculty of Health Sciences, Universidad de Castilla la Mancha, 45600 Talavera de la Reina (Toledo), Spain)

  • Laura Mordillo-Mateos

    (Faculty of Health Sciences, Universidad de Castilla la Mancha, 45600 Talavera de la Reina (Toledo), Spain)

  • Jesús Jurado-Palomo

    (Faculty of Health Sciences, Universidad de Castilla la Mancha, 45600 Talavera de la Reina (Toledo), Spain)

  • Antonio Viñuela

    (Faculty of Health Sciences, Universidad de Castilla la Mancha, 45600 Talavera de la Reina (Toledo), Spain)

  • Juan José Bernal-Jiménez

    (Faculty of Health Sciences, Universidad de Castilla la Mancha, 45600 Talavera de la Reina (Toledo), Spain)

  • Francisco Martin-Rodríguez

    (Advanced Clinical Simulation Center, School of Medicine, Universidad de Valladolid, 47005 Valladolid, Spain)

Abstract

Background: To determine the relationship between physiological fatigue and the quality of cardiopulmonary resuscitation (CPR) in trained resuscitators in hostile thermal environments (extreme cold and heat) simulating the different conditions found in an out-of-hospital cardiorespiratory arrest. Methods: Prospective observational study involving 60 students of the health sciences with training in resuscitation, who simulated CPR on a mannequin for 10 min in different thermal environments: thermo-neutral environment (21 °C and 60% humidity), heat environment (41 °C and 98% humidity) and cold environment (−35 °C and 80% humidity). Physiological parameters (heart rate and lactic acid) and CPR quality were monitored. Results: We detected a significant increase in the number of compressions per minute in the “heat environment” group after three minutes and in the mean rate after one minute. We observed a negative correlation between the total number of compressions and mean rate with respect to mean depth. The fraction of compressions (proportion of time in which chest compressions are carried out) was significant over time and the mean rate was higher in the “heat environment”. Physiological parameters revealed no differences in heart rate depending on the resuscitation scenario; however, there was a greater and faster increase in lactate in the “heat environment” (significant at minute 3). The total proportion of participants reaching metabolic fatigue was also higher in the “heat environment”. Conclusions: A warm climate modifies metabolic parameters, reducing the quality of the CPR maneuver.

Suggested Citation

  • José Luis Martin-Conty & Begoña Polonio-López & Clara Maestre-Miquel & Alicia Mohedano-Moriano & Carlos Durantez-Fernández & Laura Mordillo-Mateos & Jesús Jurado-Palomo & Antonio Viñuela & Juan José B, 2020. "Physiological Response of Quality Cardiopulmonary Resuscitation, Crossover Trial on Mannequin in Extreme Temperature Conditions," IJERPH, MDPI, vol. 17(16), pages 1-11, August.
  • Handle: RePEc:gam:jijerp:v:17:y:2020:i:16:p:5835-:d:397896
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    References listed on IDEAS

    as
    1. José Luis Martin-Conty & Francisco Martin-Rodríguez & Juan José Criado-Álvarez & Carmen Romo Barrientos & Clara Maestre-Miquel & Antonio Viñuela & Begoña Polonio-López & Carlos Durantez-Fernández & Fé, 2020. "Do Rescuers’ Physiological Responses and Anxiety Influence Quality Resuscitation under Extreme Temperatures?," IJERPH, MDPI, vol. 17(12), pages 1-12, June.
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    Cited by:

    1. José Luis Martin-Conty & Francisco Martin-Rodríguez & Juan José Criado-Álvarez & Carlos Alberto Castillo-Sarmiento & Clara Maestre-Miquel & Alicia Mohedano-Moriano & Begoña Polonio-López & Carlos Dura, 2020. "How Health Habits Influence the Physiological Response During a Physical Activity in Extreme Temperatures?," IJERPH, MDPI, vol. 17(17), pages 1-22, September.

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