Specificity and sensitivity of automated external defibrillator rhythm analysis in infants and children.

摘要: Study objective: The rhythm detection algorithms of automated external defibrillators have been derived from adult rhythms, and their ability to discriminate between shockable nonshockable rhythms in children is largely unknown. This study evaluates the performance 1 defibrillator algorithm infants with anterior-posterior versus sternalapex lead placement. Methods: We enrolled pediatric patients a critical care unit, an electrophysiology laboratory, cardiac operating room. A monitor-defibrillator recorded ECGs by means standard defibrillation-monitor pads. Selected 15-second samples were played into LIFEPAK 500 defibrillator, “shock/no shock” decision was documented. To determine sensitivity specificity, compared “shockable” “nonshockable” classification provided 3 expert clinicians who blinded decision. Results: 1,561 203 (median age 11 months; range, day birth 7 years). recommended shock for 72 73 classified as coarse ventricular fibrillation review (sensitivity 99%; 95% confidence interval [CI] 93% 100%); correctly reached “no advised” 1,465 1,472 experts (specificity 99.5%). Specificity 99.1% (95% CI 97.8% 99.8%) sternal-apex 99.4% 98.1% 99.9%) lead. Conclusion: has high specificity when used either or