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Poor chest compression quality with mechanical compressions in simulated cardiopulmonary resuscitation: A randomized, cross-over manikin study
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Anestesiologi och intensivvård.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Anestesiologi och intensivvård. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Uppsala kliniska forskningscentrum (UCR).
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Uppsala kliniska forskningscentrum (UCR).
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Anestesiologi och intensivvård.
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2011 (Engelska)Ingår i: Resuscitation, ISSN 0300-9572, E-ISSN 1873-1570, Vol. 82, nr 10, s. 1332-1337Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Introduction: Mechanical chest compression devices are being implemented as an aid in cardiopulmonary resuscitation (CPR), despite lack of evidence of improved outcome. This manikin study evaluates the CPR-performance of ambulance crews, who had a mechanical chest compression device implemented in their routine clinical practice 8 months previously. The objectives were to evaluate time to first defibrillation, no-flow time, and estimate the quality of compressions. Methods: The performance of 21 ambulance crews (ambulance nurse and emergency medical technician) with the authorization to perform advanced life support was studied in an experimental, randomized cross-over study in a manikin setup. Each crew performed two identical CPR scenarios, with and without the aid of the mechanical compression device LUCAS. A computerized manikin was used for data sampling. Results: There were no substantial differences in time to first defibrillation or no-flow time until first defibrillation. However, the fraction of adequate compressions in relation to total compressions was remarkably low in LUCAS-CPR (58%) compared to manual CPR (88%) (95% confidence interval for the difference: 13-50%). Only 12 out of the 21 ambulance crews (57%) applied the mandatory stabilization strap on the LUCAS device. Conclusions: The use of a mechanical compression aid was not associated with substantial differences in time to first defibrillation or no-flow time in the early phase of CPR. However, constant but poor chest compressions due to failure in recognizing and correcting a malposition of the device may counteract a potential benefit of mechanical chest compressions. 

Ort, förlag, år, upplaga, sidor
2011. Vol. 82, nr 10, s. 1332-1337
Nyckelord [en]
Cardiopulmonary resuscitation (CPR), Defibrillation, Cardiac arrest, Chest compression, Out-of-hospital CPR, Cardiac-assist device
Nationell ämneskategori
Anestesi och intensivvård
Identifikatorer
URN: urn:nbn:se:uu:diva-161559DOI: 10.1016/j.resuscitation.2011.06.002ISI: 000296168700018OAI: oai:DiVA.org:uu-161559DiVA, id: diva2:457850
Tillgänglig från: 2011-11-20 Skapad: 2011-11-15 Senast uppdaterad: 2017-12-08Bibliografiskt granskad
Ingår i avhandling
1. Influence of The Education and Training of Prehospital Medical Crews on Measures of Performance and Patient Outcomes
Öppna denna publikation i ny flik eller fönster >>Influence of The Education and Training of Prehospital Medical Crews on Measures of Performance and Patient Outcomes
2013 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Prehospital care has developed dramatically the last decades with the implementation of new devices and educational concepts. Clinical decisions and treatments have moved out from the hospitals to the prehospital setting. In Sweden this has been accompanied by an increase in the level of competence, i.e. by introducing nurses in the ambulances. With some exceptions the scientific support for these changes is poor.

This thesis deals with such changes in three different subsets of prehospital care: Cardiopulmonary resuscitation (CPR), the stroke chain of survival and trauma care.

We assessed the performance of ambulance crews during CPR, using a mechanical compression device, as compared to CPR using manual compressions. There was a strikingly poor quality of compressions using the mechanical device compared to CPR with manual compressions. The result calls for caution when implementing a chest compression device in clinical practice and reinforce the importance of randomised controlled trials to evaluate new interventions. Careful attention should be given to the assurance of correct application of the device. Further implementation without evaluation of the quality of mechanical compressions in a clinical setting is discouraged.

Among patients with a prehospital suspicion of stroke we analysed the ambulance nurses’ ability to select the correct patient subset eligible for a CT scan as a preparation for potential thrombolysis. The results do not support an implementation of a bypass of the emergency department, using ambulance nurse competence to select patients eligible and suitable for a CT scan without a preceding assessment by a physician.

The association between the Prehospital Trauma Life Support (PHTLS) course and the outcome in victims of trauma was analysed in two observational studies. A study covering one county gave some support for a protective effect from PHTLS, but the estimate had a low precision. A nationwide study, covering all of Sweden, could not confirm those results. Although there was a reduction in mortality over time coinciding with the implementation of PHTLS, it did not appear to be associated with the implementation of PHTLS. Thus, we could not detect any clear beneficial impact of the PHTLS course on the outcome of trauma patients.

Ort, förlag, år, upplaga, sidor
Uppsala: Acta Universitatis Upsaliensis, 2013. s. 59
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 863
Nyckelord
ambulance, prehospital, education, CPR, stroke, trauma, outcome
Nationell ämneskategori
Anestesi och intensivvård
Identifikatorer
urn:nbn:se:uu:diva-192629 (URN)978-91-554-8589-4 (ISBN)
Disputation
2013-03-15, Enghoffsalen, Akademiska Sjukhuset, Uppsala, 13:00 (Svenska)
Opponent
Handledare
Tillgänglig från: 2013-02-22 Skapad: 2013-01-23 Senast uppdaterad: 2013-04-02Bibliografiskt granskad

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Blomberg, HansGedeborg, RolfBerglund, LarsKarlsten, RolfJohansson, Jakob

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