Pulseless electrical activity (PEA) presents with electrical cardiac activity without a pulse and often carries a poor prognosis. Pseudo-PEA mimics true-PEA but has residual cardiac motion detectable by ultrasound. This pilot study suggests thoracic transthoracic impedance (TTI), a defibrillator-based measure, may help differentiate pseudo-PEA from true-PEA. Among 10 reviewed cases, TTI showed waveform fluctuations only in pseudo-PEA, indicating potential for improved identification and targeted resuscitation strategies.
Transthoracic impedance waveform to distinguish pseudo-PEA from true-PEA / G.D. Caggegi, A. Peratoner, M. Contadini, M. Musian, G. Ristagno. - In: RESUSCITATION. - ISSN 0300-9572. - 215:(2025 Oct), pp. 110714.1-110714.3. [10.1016/j.resuscitation.2025.110714]
Transthoracic impedance waveform to distinguish pseudo-PEA from true-PEA
G. Ristagno
Ultimo
2025
Abstract
Pulseless electrical activity (PEA) presents with electrical cardiac activity without a pulse and often carries a poor prognosis. Pseudo-PEA mimics true-PEA but has residual cardiac motion detectable by ultrasound. This pilot study suggests thoracic transthoracic impedance (TTI), a defibrillator-based measure, may help differentiate pseudo-PEA from true-PEA. Among 10 reviewed cases, TTI showed waveform fluctuations only in pseudo-PEA, indicating potential for improved identification and targeted resuscitation strategies.
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