{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:54:53Z","timestamp":1787018093928,"version":"build-2736575974"},"reference-count":34,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"12","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["JAHA"],"published-print":{"date-parts":[[2015,12]]},"abstract":"\n Background<\/jats:title>\n \n Although automated external defibrillators (\n AED<\/jats:styled-content>\n s) have contributed to a better survival of out\u2010of\u2010hospital cardiac arrests, there have been reports of their malfunctioning. We investigated the diagnostic accuracy of commercially available\n AED<\/jats:styled-content>\n s using surface ECGs of ventricular fibrillation (\n VF<\/jats:styled-content>\n ), ventricular tachycardia (\n VT<\/jats:styled-content>\n ), and supraventricular tachycardia (\n SVT<\/jats:styled-content>\n ).\n <\/jats:p>\n <\/jats:sec>\n \n Methods and Results<\/jats:title>\n \n ECGs(\n VF<\/jats:styled-content>\n 31,\n VT<\/jats:styled-content>\n 48,\n SVT<\/jats:styled-content>\n 97) were stored during electrophysiological studies and transmitted to 4\n AED<\/jats:styled-content>\n s, the LifePak\n CR<\/jats:styled-content>\n Plus (\n CR<\/jats:styled-content>\n Plus), HeartStart\n FR<\/jats:styled-content>\n 3 (\n FR<\/jats:styled-content>\n 3), and CardioLife\n AED<\/jats:styled-content>\n \u20102150 (\n CL<\/jats:styled-content>\n 2150) and \u20109231 (\n CL<\/jats:styled-content>\n 9231), through the pad electrode cables. For\n VF<\/jats:styled-content>\n , the\n CL<\/jats:styled-content>\n 2150 and\n CL<\/jats:styled-content>\n 9231 advised shocks in all cases, and the\n CR<\/jats:styled-content>\n Plus and\n FR<\/jats:styled-content>\n 3 advised shocks in all but one\n VF<\/jats:styled-content>\n case. For\n VT<\/jats:styled-content>\n s faster than 180\u00a0bpm, the ratios for advising shocks were 79%, 36%, 89%, and 96% for the\n CR<\/jats:styled-content>\n Plus,\n FR<\/jats:styled-content>\n 3,\n CL<\/jats:styled-content>\n 2150, and\n CL<\/jats:styled-content>\n 9231, respectively. The\n FR<\/jats:styled-content>\n 3 and\n CR<\/jats:styled-content>\n Plus did not advise shocks for narrow\n QRS SVT<\/jats:styled-content>\n s, whereas the\n CL<\/jats:styled-content>\n 9231 tended to treat high\u2010rate tachycardias faster than 180\u00a0bpm even with narrow\n QRS<\/jats:styled-content>\n complexes. The characteristics of the shock advice for the\n FR<\/jats:styled-content>\n 3 differed from that for the\n CL<\/jats:styled-content>\n 9231 (kappa coefficient [\u03ba]=0.479,\n P<\/jats:italic>\n <0.001), and the\n CR<\/jats:styled-content>\n Plus and\n CL<\/jats:styled-content>\n 2150 had characteristics somewhere between the 2 former\n AED<\/jats:styled-content>\n s (\u03ba=0.818,\n P<\/jats:italic>\n <0.001).\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n \n Commercially available\n AED<\/jats:styled-content>\n s diagnosed\n VF<\/jats:styled-content>\n almost always correctly. For\n VT<\/jats:styled-content>\n and\n SVT<\/jats:styled-content>\n diagnoses, a discrepancy was evident among the 4 investigated\n AED<\/jats:styled-content>\n s. The differences in the arrhythmia diagnosis algorithms for differentiating\n SVT<\/jats:styled-content>\n from\n VT<\/jats:styled-content>\n were thought to account for these differences.\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1161\/jaha.115.002465","type":"journal-article","created":{"date-parts":[[2015,12,1]],"date-time":"2015-12-01T22:43:18Z","timestamp":1449009798000},"update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":19,"title":["Diagnostic Accuracy of Commercially Available Automated External Defibrillators"],"prefix":"10.1161","volume":"4","author":[{"given":"Takahiko","family":"Nishiyama","sequence":"first","affiliation":[{"name":"Department of Cardiology Keio University School of Medicine Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ako","family":"Nishiyama","sequence":"additional","affiliation":[{"name":"Department of Medical Engineering Keio University School of Medicine Tokyo 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