Premature ventricular contractions (PVCs) are a common form of arrhythmia associated with an unfavorable prognosis in patients with structural heart disease. It is unclear whether PVCs site of origin and QRS-width has a prognostic significance in patients without structural heart disease. The aim of this study was to assess the prognostic importance of PVCs morphology and duration in this patient group.

中文翻译：

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无结构性心脏病人群室性早搏形态和持续时间的预后影响

室性早搏（PVC）是一种常见的心律失常形式，与结构性心脏病患者的不良预后相关。目前尚不清楚 PVC 起源部位和 QRS 宽度是否对无结构性心脏病的患者具有预后意义。本研究的目的是评估该患者组 PVC 形态和持续时间的预后重要性。