Hands-free continuous carotid Doppler ultrasound for detection of the pulse during cardiac arrest in a porcine model.

ABSTRACT:

Background/purpose

Pulse palpation is an unreliable method for diagnosing cardiac arrest. To address this limitation, continuous hemodynamic monitoring may be a viable solution. Therefore, we developed a novel, hands-free Doppler system, RescueDoppler, to detect the pulse continuously in the carotid artery.

Methods

In twelve pigs, we evaluated RescueDoppleŕs potential to measure blood flow velocity in three situations where pulse palpation of the carotid artery was insufficient: (1) systolic blood pressure below 60 mmHg, (2) ventricular fibrillation (VF) and (3) pulseless electrical activity (PEA). (1) Low blood pressure was induced using a Fogarty balloon catheter to occlude the inferior vena cava. (2) An implantable cardioverter-defibrillator induced VF. (3) Myocardial inf

SUBMITTER: Faldaas BO 

PROVIDER: S-EPMC10336194 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature