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To the Editor
We read with interest the article by Lee et al 1 assessing the potential benefit of a watchful waiting strategy in 100 patients with frequent premature ventricular contractions (PVCs) (>5%/24 hours) and preserved left ventricular ejection fraction (LVEF) of >50%. The most striking result of the current study was the high proportion of patients with spontaneous reduction in PVC frequency during follow-up. In 44% of the patients, spontaneous PVC reduction (<1%/24 hours) was observed at a median follow-up of 15.4 months. Unfortunately, the authors do not provide data on the development of symptoms in the remaining 56% of the cohort with persistent frequent PVCs. Furthermore, the authors focus on systolic LV …
Contributors FOM, UC, S-CY: substantial contributions to the conception or design of the work. FOM, UC, S-CY: drafting the work or revising it critically for important intellectual content. FOM, UC, S-CY: final approval of the version published. FOM, UC, S-CY: agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.
Competing interests UC: proctoring for Abbott, lecturer for Medtronic.
Patient consent for publication Not required.
Provenance and peer review Not commissioned; internally peer reviewed.
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