Coupling Interval Ratio Is Associated with Ventricular Premature Complex-Related Symptoms
Korean Circulation Journal
;
: 294-300, 2015.
Article
in English
| 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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Arrhythmias, Cardiac
/
Prospective Studies
/
Ventricular Premature Complexes
/
Electrocardiography
Type of study:
Diagnostic study
/
Observational study
/
Prognostic study
/
Risk factors
Limits:
Humans
/
Male
Language:
English
Journal:
Korean Circulation Journal
Year:
2015
Type:
Article
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