提到室性期外收缩(以下简称 VPC)的严重度,立刻会想到 Lown 的分类。Lown 的分类简便,但对这种分类也有不少批判。本文,以 Lown 分类为重点,讨论 VPC的严重度。1.Lown 对 VPC 的分类Lown 分类法(表1)根据 VPC 的次数分3级,根据图型分4级,共计7级。Lown 分类把3度以上的 VPC 称为复杂性 VPC。另外,2度以上的 VPC,是心室 Mentioned ventricular contraction (hereinafter referred to as VPC) the severity of Lown immediately think of the classification. Lown’s classification is simple, but there are many critics of this classification. This article, Lown classification as the focus to discuss the severity of VPC. 1.Lown classification of VPC Lown classification (Table 1) According to the number of VPC points 3, according to the graph is divided into 4 levels, a total of 7 levels. The Lown classification refers to a VPC that is more than 3 degrees as a complexity VPC. In addition, VPC of 2 degrees or more is a ventricle