Dynamic pulse oximetry can detect rate-dependent and Valsalva-induced changes in pulsus alternans, aiding non-invasive cardiac assessment.
Pulse oximetry may be utilized for the dynamic detection of pulsus alternans, including rate-dependent and Valsalva-induced changes.
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A woman in her 90s with a history of atrial tachycardia diagnosed 6 months earlier and treated with verapamil was brought to the emergency department with sudden onset of dyspnoea. On arrival, her blood pressure was 118/70 mm Hg, heart rate 120 bpm, respiratory rate (RR) 24/min and oxygen
Nishizawa et al. (Sun,) reported a other. Dynamic pulse oximetry can detect rate-dependent and Valsalva-induced changes in pulsus alternans, aiding non-invasive cardiac assessment.