Now - in both these situations, the QRS complex comes in early, which means an early ventricular contraction.

现在，在这两种情况下，QRS波群都会提前出现，意味着一次提前的心室收缩。

Also, you might have multiple ectopic foci PVCs, producing different appearing QRS complexes on a single rhythm strip.

同，你可能有许多室性期前收缩的异位起搏点，在单一的心律带上产生了不同形式的QRS波群。

In majority of cases, the successfully conducted QRS complexes may appear broader than usual.

大多数情况下，成功传导的QRS波群可能较正常宽。

The ventricular contraction is seen as a QRS complex, and the ventricular repolarization, and therefore it's relaxation, is seen as a T-wave.

心室收缩以QRS复合波群的形式展现，心室复极以及因此发生舒张的波形，则视为T波。

In some type II blocks, there is a fixed number of P waves per QRS complex.

在某些II型传导阻滞中，每个QRS波群有固定数目的P波。

On an ECG V-tach is characterized by wide and bizarre looking QRS complexes.

在ECG上，V-tach的特征宽而异常的QRS波群。

As an example, consider how the 6 chest leads - V1 through V6 - register this depolarization wave form called the QRS complex.

作为例子，我们来看一下这6个胸导联，V1-V6来记录被称为“QRS波群”的除极波形的。

This is known as a " blocked" P wave or a " dropped" QRS complex.

这就所谓的P波“被阻滞”或QRS波群“脱落”。

In this situation, the depolarization wave conducts down the left bundle branch and then through the ventricles aberrantly, resulting in an abnormally wide QRS complex.

在这种情况下，除极波向下传导到左束支，然后异常地穿过心室，导致一个异常增宽的QRS波群。

The QRS wave, which is sometimes called the QRS complex, represents the spread of the electrical impulse through the ventricles, or ventricular depolarization.

QRS波，有时被称为QRS波群，代表电脉冲通过心室的传播，或心室去极化。

The number of flutter waves preceding a QRS complex corresponds to number of atrial contractions to one ventricular contraction.

一个QRS波群前的房扑波的数目，相当于一次心室收缩对应的心房收缩的数目。

This method looks at the QRS complex in lead 1 and lead aVF.

这种方法观察I导联和aVF导联的QRS波群。

Also, the closer the ectopic focus is to the AV node, the shorter the PR interval, which is the time from the P wave to the QRS complex.

并且，异位起搏点越靠近房室结，PR间期就越短，也就P波到QRS复合波群的时间。

Negative values of the QRS complex in both leads are indicative of extreme axis deviation.

两个导联的QRS波群均为负值，表明存在极端轴偏移。

The line on an ECG connecting readout, connecting the end of the QRS complex and the T wave is called the ST segment.

心电图上连接读出器、QRS波群末端和T波的线称为ST段。

Alright, as a quick recap - Premature ventricular contractions are abnormal heartbeats that originate in the ventricles, and show up as tall and wide QRS complexes on an ECG.

好，作一个小结：室性期前收缩一种异常的心搏，起源于心室，在心电图上表现出高而宽的QRS波群。

Lead V6 sees the opposite, producing a wide, characteristic " bunny ears" QRS complex with two R waves.

V6导联则相反，产生一个宽的、特征性的“兔耳”QRS波群，两个R波。

If the QRS complex is positive in that lead, the axis points to roughly the same direction as the lead.

如果该导联的QRS波群为正，则轴指向与导联大致相同的方向。

Thus, the QRS complex starts as predominantly negative in V1, and ends as predominantly positive in V6.

因此，QRS波群在V1开始时主要为负，在V6时以正性结束。

On an ECG, atrial fibrillation is characterized by absence of P-waves and irregular narrow QRS complexes.

在ECG上，心房颤动的特征没有P波和不规则的窄QRS波群。