Ventricular arrhythmias are not a short-term reproducible phenomenon--why long recording monitoring is necessary.
J Electrocardiol
; 47(3): 335-41, 2014.
Article
em En
| MEDLINE
| ID: mdl-24631028
ABSTRACT
BACKGROUND:
The variability of ventricular arrhythmias (VA) among different days of the week is not well detected by one-day Holter monitoring.AIMS:
To evaluate whether there are differences in VA distribution pattern during long recording period.METHODS:
The EKG was recorded for 14 h per day during 7 days by Holter system in 34 consecutive pat ventricular couplets and non-sustained ventricular tachycardia (NSVT) recording from patients provided graphic data. We applied the Hurst method (H Coefficient) which evaluates whether a repetitive phenomenon is random or not. When the H is >0.5 and <1 means it is not random and implies a long-term memory effect. Considering the arrhythmic variability, the data were also analyzed by repetitive ANOVA comparing incidence of arrhythmias among the days.RESULTS:
Isolated PVCs and ventricular couplets during 98 h recording provided graphic of the occurrence. A trend of increasing and decreasing of arrhythmias was observed which looks erratic. The H coefficient, however, was significantly >0.5 for all patients. Repeated ANOVA showed statistic difference among days in 31 patients with isolated PVCs; in 26 with ventricular couplets and 19 with NSVT when analyzed per hour during week days (p < 0.05).CONCLUSION:
PVCs, ventricular couplets and NSVT are not a random phenomenon. Our data suggest the occurrence of ventricular arrhythmias had no similarity among the days, making unlikely that a single Holter recording for 24h may capture this phenomenon.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Algoritmos
/
Diagnóstico por Computador
/
Eletrocardiografia Ambulatorial
/
Taquicardia Ventricular
/
Complexos Ventriculares Prematuros
Tipo de estudo:
Diagnostic_studies
Limite:
Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article