electrocardiogram

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electrocardiogram

[i‚lek·trō′kärd·ē·ə‚gram]
(medicine)
A graphic recording of the electrical manifestations of the heart action as obtained from the body surfaces. Abbreviated ECG; EKG.
References in periodicals archive ?
As he mentioned, it has been reported that low QRS voltage and attenuation of the amplitude of the QRS complexes are a highly prevalent sign in patients with takotsubo syndrome.
At first assessment, the PR interval variations from beat to beat and the occasional P waves following QRS complexes were striking for this bird.
For heart rates ranging from 60 to 100 beats per minute, a QT interval is normal if it is less than half the distance between these two QRS complexes (Normal QT=<?
The dominant pattern of waveforms for the QRS complexes was rS in leads II, III, aVR, and aVF, whereas in leads I and aVL, the patterns were R and Rs, respectively.
Further bicarbonate boluses appeared to narrow QRS complexes and the patient received a total bicarbonate dose of 100 mmol.
3] (taken from Figure 1) reveals "X" marks above the "tips" of the QRS complexes.
The ECG obtained at admission showed low-voltage QRS complexes.
The RHYTHM ICD clinical study clearly demonstrates the important therapeutic benefits of CRT-D therapy to symptomatic heart failure patients with low ejection fractions and prolonged QRS complexes," said Eric S.
The pacemaker lead is in the right ventricle, and consequently pacer-initiated QRS complexes (the first QRS in the limb leads and the third and fourth QRSs in the precordial leads) resemble left bundle branch block.
The dominant pattern of wave forms of the QRS complexes was RS in leads II, III, and aVF; R in lead I; QR in lead aVR; and qR in lead aVL.