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群都会提前出现，意味着一次提前心室收缩。

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

同样，你可能有室性期前收缩异位起搏点，在单一心律带上产生了不同形式QRS群。

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

大数情况下，成功传导QRS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复合群形式展现，心室复极以及因此发生舒张形，则视为T。

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群有固定数目P。

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

在ECG上，V-tach特征是宽而异常QRS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是怎样来记录被称为“QRS群”除极形。

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

这就是所谓P“被阻滞”或QRS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QRS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，有时被称为QRS群，代表电脉冲通过心室传播，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群前房扑数目，相当于一次心室收缩对应心房收缩数目。

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QRS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，也就是P到QRS复合群时间。

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

两个导联QRS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群末端和T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：室性期前收缩是一种异常心搏，起源于心室，在心电图上表现出高而宽QRS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、特征性“兔耳”QRS群，两个R。

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QRS群为正，则轴指向与导联大致相同方向。

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

因此，QRS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，心房颤动特征是没有P和不规则窄QRS群。