Coupling Interval Ratio Is Associated with Ventricular Premature Complex-Related Symptoms
Korean Circulation Journal
; : 294-300, 2015.
Article
en En
| WPRIM
| ID: wpr-28558
Biblioteca responsable:
WPRO
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 AND METHODS: 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.
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WPRIM
Asunto principal:
Arritmias Cardíacas
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Estudios Prospectivos
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Complejos Prematuros Ventriculares
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Electrocardiografía
Tipo de estudio:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Humans
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Male
Idioma:
En
Revista:
Korean Circulation Journal
Año:
2015
Tipo del documento:
Article