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Real-time feedback on chest compression efficacy by hands-free carotid Doppler in a porcine model.
Faldaas, Bjørn Ove; Nielsen, Erik Waage; Storm, Benjamin Stage; Lappegård, Knut Tore; Nilsen, Bent Aksel; Kiss, Gabriel; Skogvoll, Eirik; Torp, Hans; Ingul, Charlotte Björk.
Afiliación
  • Faldaas BO; Faculty of Nursing and Health Sciences, Nord University, Bodø, Norway.
  • Nielsen EW; Department of Circulation and Medical Imaging, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
  • Storm BS; Faculty of Nursing and Health Sciences, Nord University, Bodø, Norway.
  • Lappegård KT; Department of Clinical Medicine, Faculty of Health Sciences, UiT the Arctic University of Norway, Tromsø, Norway.
  • Nilsen BA; Department of Surgery, Nordland Hospital Trust, Bodø, Norway.
  • Kiss G; Department of Pain Management and Research, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway.
  • Skogvoll E; Faculty of Nursing and Health Sciences, Nord University, Bodø, Norway.
  • Torp H; Department of Clinical Medicine, Faculty of Health Sciences, UiT the Arctic University of Norway, Tromsø, Norway.
  • Ingul CB; Department of Surgery, Nordland Hospital Trust, Bodø, Norway.
Resusc Plus ; 18: 100583, 2024 Jun.
Article en En | MEDLINE | ID: mdl-38404755
ABSTRACT

Aim:

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.

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.

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).

Conclusion:

RescueDoppler detected TAV changes during CPR with alternating chest compression positions, identifying the position yielding maximal TAV. Future clinical studies should investigate if RescueDoppler can be used as a real-time hemodynamical feedback device to guide compression position.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Resusc Plus Año: 2024 Tipo del documento: Article País de afiliación: Noruega Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Resusc Plus Año: 2024 Tipo del documento: Article País de afiliación: Noruega Pais de publicación: Países Bajos