Diagnostic Accuracy of Commercially Available Automated External Defibrillators
Autor: | Takehiro Kimura, Keiichi Fukuda, Hideo Mitamura, Yoko Tanimoto, Seiji Takatsuki, Shin Kashimura, Takahiko Nishiyama, Masachika Negishi, Nobuhiro Nishiyama, Yoshinori Katsumata, Yoshiyasu Aizawa, Ako Nishiyama |
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Rok vydání: | 2015 |
Předmět: |
Male
Tachycardia lcsh:Diseases of the circulatory (Cardiovascular) system medicine.medical_specialty Defibrillation medicine.medical_treatment Electric Countershock Diagnostic accuracy tachycardia cardiopulmonary resuscitation Sensitivity and Specificity Electrocardiography External defibrillators Internal medicine Tachycardia Supraventricular medicine Humans Arrhythmia and Electrophysiology Cardiopulmonary resuscitation fibrillation Original Research Cardiopulmonary Resuscitation and Emergency Cardiac Care Fibrillation medicine.diagnostic_test business.industry Reproducibility of Results Middle Aged medicine.disease defibrillation lcsh:RC666-701 Ventricular Fibrillation Ventricular fibrillation Tachycardia Ventricular Cardiology Female medicine.symptom Cardiology and Cardiovascular Medicine business Defibrillators |
Zdroj: | Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, Vol 4, Iss 12, Pp n/a-n/a (2015) |
ISSN: | 2047-9980 |
DOI: | 10.1161/jaha.115.002465 |
Popis: | Background Although automated external defibrillators ( AED s) have contributed to a better survival of out‐of‐hospital cardiac arrests, there have been reports of their malfunctioning. We investigated the diagnostic accuracy of commercially available AED s using surface ECGs of ventricular fibrillation ( VF ), ventricular tachycardia ( VT ), and supraventricular tachycardia ( SVT ). Methods and Results ECGs( VF 31, VT 48, SVT 97) were stored during electrophysiological studies and transmitted to 4 AED s, the LifePak CR Plus ( CR Plus), HeartStart FR 3 ( FR 3), and CardioLife AED ‐2150 ( CL 2150) and ‐9231 ( CL 9231), through the pad electrode cables. For VF , the CL 2150 and CL 9231 advised shocks in all cases, and the CR Plus and FR 3 advised shocks in all but one VF case. For VT s faster than 180 bpm, the ratios for advising shocks were 79%, 36%, 89%, and 96% for the CR Plus, FR 3, CL 2150, and CL 9231, respectively. The FR 3 and CR Plus did not advise shocks for narrow QRS SVT s, whereas the CL 9231 tended to treat high‐rate tachycardias faster than 180 bpm even with narrow QRS complexes. The characteristics of the shock advice for the FR 3 differed from that for the CL 9231 (kappa coefficient [κ]=0.479, P CR Plus and CL 2150 had characteristics somewhere between the 2 former AED s (κ=0.818, P Conclusions Commercially available AED s diagnosed VF almost always correctly. For VT and SVT diagnoses, a discrepancy was evident among the 4 investigated AED s. The differences in the arrhythmia diagnosis algorithms for differentiating SVT from VT were thought to account for these differences. |
Databáze: | OpenAIRE |
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