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dc.contributor.authorFaldaas, Bjørn Ove
dc.contributor.authorNielsen, Erik Waage
dc.contributor.authorStorm, Benjamin Stage
dc.contributor.authorLappegård, Knut Tore
dc.contributor.authorNilsen, Bent Aksel
dc.contributor.authorKiss, Gabriel Hanssen
dc.contributor.authorSkogvoll, Eirik
dc.contributor.authorTorp, Hans
dc.contributor.authorIngul, Charlotte Ingeborg Björk
dc.date.accessioned2024-05-24T11:34:47Z
dc.date.available2024-05-24T11:34:47Z
dc.date.issued2024-02-20
dc.description.abstractAim: Current guidelines for cardiopulmonary resuscitation (CPR) recommend a one-size-fits-all approach in relation to the positioning of chest compressions. We recently developed RescueDoppler, a hands-free Doppler ultrasound device for continuous monitoring of carotid blood flow velocity during CPR. The aim of the present study is to investigate whether RescueDoppler via real-time hemodynamic feedback, could identify both optimal and suboptimal compression positions.<p> <p>Methods: In this model of animal cardiac arrest, we induced ventricular fibrillation in five domestic pigs. Manual chest compressions were performed for ten seconds at three different positions on the sternum in random order and repeated six times. We analysed Time Average Velocity (TAV) with chest compression position as a fixed effect and animal, position, and sequential time within animals as random effects. Furthermore, we compared TAV to invasive blood pressure from the contralateral carotid artery. <p>Results: We were able to detect changes in TAV when altering positions. The positions with the highest (range 19 to 48 cm/s) and lowest (6–25 cm/s) TAV were identified in all animals, with corresponding peak pressure 50–81 mmHg, and 46–64 mmHg, respectively. Blood flow velocity was, on average, highest at the middle position (TAV 33 cm/s), but with significant variability between animals (SD 2.8) and positions within the same animal (SD 9.3). <p>Conclusion: RescueDoppler detected TAV changes during CPR with alternating chest compression positions, identifying the position yielding max imal TAV. Future clinical studies should investigate if RescueDoppler can be used as a real-time hemodynamical feedback device to guide compres sion position.en_US
dc.identifier.citationFaldaas, Nielsen, Storm, Lappegård, Nilsen, Kiss, Skogvoll, Torp, Ingul. Real-time feedback on chest compression efficacy by hands-free carotid Doppler in a porcine model. Resuscitation Plus. 2024;18en_US
dc.identifier.cristinIDFRIDAID 2255020
dc.identifier.doi10.1016/j.resplu.2024.100583
dc.identifier.issn2666-5204
dc.identifier.urihttps://hdl.handle.net/10037/33608
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalResuscitation Plus
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleReal-time feedback on chest compression efficacy by hands-free carotid Doppler in a porcine modelen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)