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Titolo:
PROSPECTIVE EVALUATION OF A MICROPROCESSOR-ASSISTED CARDIAC-RHYTHM ALGORITHM - RESULTS FROM ONE CLINICAL CENTER
Autore:
REDDY BRS; TAHA B; SWIRYN S; SILBERMAN R; CHILDERS R;
Indirizzi:
MARQUETTE MED SYST INC,ALGORITHM DEV,DIV CARDIOL,8200 W TOWER AVE MILWAUKEE WI 53233 NORTHWESTERN UNIV,EVANSTON HOSP EVANSTON IL 60201 ST LUKES HOSP,DIV CARDIOL MILWAUKEE WI 00000 UNIV CHICAGO HOSP,DIV CARDIOL CHICAGO IL 60637
Titolo Testata:
Journal of electrocardiology
, volume: 30, anno: 1997, supplemento:, S
pagine: 28 - 33
SICI:
0022-0736(1997)30:<28:PEOAMC>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
SURFACE ELECTROCARDIOGRAMS; DIAGNOSIS; ECG;
Keywords:
CARDIAC RHYTHM ANALYSIS; 12-LEAD ECG ANALYSIS; OF ATRIAL ACTIVITY DETECTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
B.R.S. Reddy et al., "PROSPECTIVE EVALUATION OF A MICROPROCESSOR-ASSISTED CARDIAC-RHYTHM ALGORITHM - RESULTS FROM ONE CLINICAL CENTER", Journal of electrocardiology, 30, 1997, pp. 28-33

Abstract

A nerv microprocessor-assisted cardiac rhythm algorithm (MAC-RHYTHM),based on median QRST subtraction from 10-second electrocardiographic (EGG) data, tvas prospectively tested on 10,761 ECGs acquired at one of three clinical centers. Atrial waves (P waves, atrial fibrillatory waves, anal flutter waves) were detected from the median QRST-subtracted residual signals. Rhythm criteria were applied to the detected atrial waves and their temporal relation to QRS complexes for generating rhythm interpretations. Rhythm statements generated by MAC-RHYTHM were compared against the true rhythm of the ECGs as read by an experienced cardiologist. The results of prospective testing were compared with the results of an earlier retrospective testing using MAC-RHYTHM and a released commercial ECG analysis program on stored ECGs. The prospective results were very similar to the results of MAC-RHYTHM on retrospective data for all the rhythms examined (sinus rhythms, atrial fibrillation, atrial flutter, junctional rhythms, second degree atrioventricular blocks). For three of the abnormal rhythms, namely atrial fibrillation, junctional rhythms, and second degree atrioventricular blocks, MAC-RHYTHM Save significantly higher sensitivity in both prospective (87.5%, 92.2%, and 80.8%, respectively) and retrospective (82.0%, 81.2%, and 79.6% respectively) testing than the released commercial ECG analysis program (65.0%, 39.6%, and 12.0% respectively). Similarly, for sinus rhythms, MAC-RHYTHM had significantly higher specificity (prospective, 91.0% and retrospective, 91.7%) than the released commercial program (86.5%). The specificity for the abnormal rhythms remained very highwith MAC-RHYTHM (prospective, 99.4% to 99.7% and retrospective, 99.1%to 99.7%) compared to the released commercial program (99.0% to 99.9%). This prospective study also indicated that further work is needed to improve the detection of pacemaker spikes and the interpretation of paced rhythms in 10-second resting ECGs.

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Documento generato il 09/07/20 alle ore 22:11:33