Value of a novel 16-lead High-Definition ECG machine to detect conduction abnormalities in structural heart disease.
Pacing Clin Electrophysiol
; 41(6): 643-655, 2018 06.
Article
em En
| MEDLINE
| ID: mdl-29603270
ABSTRACT
BACKGROUND:
Depolarization abnormalities are hardly detectable by standard 12-lead electrocardiogram (ECG) in some patients.OBJECTIVE:
To evaluate the value of the 16-lead High-Definition (HD)-ECG machine to record conduction abnormalities including Epsilon waves in patients with structural heart disease.METHODS:
Tracings with 12-lead ECG, 16-lead HD-ECG, and signal-averaged ECG were studied.RESULTS:
(1) Case of severe coronary artery disease (CAD) On 16-lead HD-ECG, a tiny intra-QRS signal was noted in lead III, a prolonged P wave in lead II, and fragmentation on top of lead aVL and lead aVF. Proper automatic measurement of the prolonged P wave measuring 190 ms was noted. Signal-averaging by 16-lead HD-ECG in lead III showed the intra-QRS fragmentation and P wave prolongation of 180 ms. (2) First patient with arrhythmogenic right ventricular dysplasia (ARVD) Standard 12-lead ECG indicated Epsilon waves in lead III, V2, V3, and inverted T waves in V1-V3. 16-lead HD-ECG indicated QRS prolongation in lead II, III, aVL, aVF, V2, V3 as opposed to V6, and low amplitudes of QRS complexes in V4R and V3R as a new possible sign of ARVD. Notches in lead V2, widening of QRS complexes in all precordial leads, but shorter QRS in V8-V9 are also considered as a potential new diagnostic sign of ARVD. (3) Second ARVD patient Notches at the end of the QRS in lead III and a negative initial deflection of the QRS in V1 and V2 were detected by standard 12-lead ECG. On 16-lead HD-ECG, a more pronounced QRS fragmentation was visible.CONCLUSION:
16-lead HD-ECG in both CAD and ARVD seems to be more sensitive than 12-lead ECG to record electrocardiographic abnormalities.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Displasia Arritmogênica Ventricular Direita
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Doença das Coronárias
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Eletrocardiografia
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Doença do Sistema de Condução Cardíaco
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Sistema de Condução Cardíaco
Limite:
Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article