正常犬心脏的早搏后T波改变。

Postextrasystolic T wave changes in normal canine hearts.

作者信息

Yoon M S, O'Connell D P, Han J

出版信息

Cardiovasc Res. 1984 Nov;18(11):711-3. doi: 10.1093/cvr/18.11.711.

DOI:10.1093/cvr/18.11.711

PMID:6209014

Abstract

Premature ventricular beats were induced at variable coupling intervals and postextrasystolic T wave changes were observed following various postextrasystolic cycle lengths in 19 closed chest dogs with normal hearts. Following relatively longer postextrasystolic cycle lengths, reversal of the T wave polarity was seen in six dogs (31%), only T wave amplitude changes were seen in 6 dogs (31%), and no significant T wave changes were seen in seven dogs (38%). It was concluded that postextrasystolic T wave changes occur in normal hearts and have no useful diagnostic values.

摘要

在19只心脏正常的开胸狗中，以可变的联律间期诱发室性早搏，并观察不同代偿间歇周期长度后的早搏后T波变化。在相对较长的代偿间歇周期长度后，6只狗（31%）出现T波极性反转，6只狗（31%）仅出现T波振幅变化，7只狗（38%）未出现明显的T波变化。结论是，早搏后T波变化发生在正常心脏中，无有用的诊断价值。