Coupling Interval Ratio Is Associated with Ventricular Premature Complex-Related Symptoms
Korean Circulation Journal
;
: 294-300, 2015.
Article
Dans Anglais
| WPRIM
| ID: wpr-28558
ABSTRACT
BACKGROUND AND OBJECTIVES:
Frequent ventricular premature complex (VPC) is one of the most common arrhythmia syndromes. Symptoms observed frequently with this arrhythmia syndrome remain limited. We sought to identify predictors of VPC-related symptoms by analyzing demographic information, VPC burden, and VPC surface electrocardiogram characteristics. SUBJECTS ANDMETHODS:
We prospectively enrolled 109 patients with idiopathic outflow tract VPCs (63 males, 49+/-16 years old). They were divided into Group A (n=30, without VPC-related symptoms of palpitations or "dropped beats") and Group B (n=79, with VPC-related symptoms). Measured parameters were sinus and VPC QRS width, coupling interval (CI) between the previous sinus beat and VPC, CI ratio (%, CI/sinus cycle length), post-VPC CI and CI ratio, and VPC amplitude.RESULTS:
Both groups had similar age (p=0.22), daily VPC burden (p=0.15), and VPC site of origin (p=0.36). The VPC CI ratio was higher in Group B (60+/-15%) than in Group A (49+/-22%) (p=0.01).CONCLUSION:
VPC-related symptoms are associated with a higher VPC CI ratio (>50%). The physiologic basis for these results deserves further study.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Troubles du rythme cardiaque
/
Études prospectives
/
Extrasystoles ventriculaires
/
Électrocardiographie
Type d'étude:
Etude diagnostique
/
Étude observationnelle
/
Étude pronostique
/
Facteurs de risque
Limites du sujet:
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Korean Circulation Journal
Année:
2015
Type:
Article
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