Long-term outcome of multiform premature ventricular complexes in structurally normal heart

Chin Yu Lin, Shih Lin Chang, Yenn Jiang Lin, Li Wei Lo, Fa Po Chung, Yun Yu Chen, Tze Fan Chao, Yu Feng Hu, Ta Chuan Tuan, Jo Nan Liao, Yen Chang Huang, Yaoting Chang, Chuen Wang Chiou, Shih Ann Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

Background Multiform premature ventricular complexes (PVCs) are common electrocardiographic abnormalities in patients with structurally normal hearts. However, the prognostic value of these complexes remains unclear. This study aimed to clarify the role of PVC polymorphism in predicting adverse outcomes. Methods and result We examined the database for 24-hour electrocardiography monitoring between January 1, 2002 and December 31, 2004. We analyzed 3351 individuals with apparently normal hearts. Kaplan-Meier curves and multivariate Cox proportional hazards models were employed to estimate the effect of multiform PVC and uniform PVC on the number of incident adverse events. Average follow-up time was 10 ± 1 years. Patients with multiform PVC were older and had a higher prevalence of comorbidities. In multivariate analysis, patients with multiform PVC had an increased incidence of mortality (hazard ratio [HR]: 1.642, 95% confidence interval [CI]: 1.327-2.031), hospitalization (HR: 1.196, 95% CI: 1.059-1.350), cardiovascular hospitalization (HR: 1.289, 95% CI: 1.030-1.613), new-onset heart failure (HF; HR: 1.456, 95% CI: 1.062-1.997), transient ischemic accident (HR: 1.411, 95% CI 1.063-1.873), and new-onset atrial fibrillation (AF; HR: 1.546, 95% CI: 1.058-2.258) compared to the group without PVC. Patients with multiform PVC had a higher rate of mortality (HR: 1.231, 95% CI: 1.033-1.468) and all cause-hospitalization (HR: 1.147, 95% CI: 1.025-1.283) compared with patients with uniform PVC. Conclusion The presence of multiform PVC was associated with a higher incidence of mortality, hospitalization, transient ischemic attack, new-onset AF, and new-onset HF independent of other clinical risk factors.

Original languageEnglish
Pages (from-to)80-85
Number of pages6
JournalInternational Journal of Cardiology
Volume180
DOIs
StatePublished - 1 Feb 2015

Keywords

  • Atrial fibrillation
  • Heart failure
  • Mortality
  • Polymorphism
  • Premature ventricular complexes
  • Transient ischemic accident

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