enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Wandering atrial pacemaker - Wikipedia

   en.wikipedia.org/wiki/Wandering_atrial_pacemaker

   Wandering atrial pacemaker may be seen in young, healthy individuals as well as in the elderly and those with lung disease. [2] The cause of wandering atrial pacemaker is unclear. Increased tone from the vagus nerve may factor into the rhythm appearing in young, healthy individuals who exercise. The vagus nerve is a part of the parasympathetic ...

3. Multifocal atrial tachycardia - Wikipedia

   en.wikipedia.org/wiki/Multifocal_atrial_tachycardia

   Multifocal atrial tachycardia is characterized by an electrocardiogram (ECG) strip with three or more discrete P wave morphologies in the same lead, not including that originating from the sinoatrial node, plus tachycardia, which is a heart rate exceeding 100 beats per minute (although some suggest using a threshold of 90 beats per minute ...

4. Rhythm interpretation - Wikipedia

   en.wikipedia.org/wiki/Rhythm_interpretation

   A wandering atrial pacemaker can be either normal or irregular in rate, much like a sinus arrhythmia the rate is normally between 60 - 100 bpm when it is normal and less than 60 when it is slow, the distinguishing feature of this rhythm is a p wave that varies in size, shape, and direction, the PR interval can either be normal or irregular ...

5. Electrical alternans - Wikipedia

   en.wikipedia.org/wiki/Electrical_alternans

   Electrical alternans is an electrocardiographic phenomenon of alternation of QRS complex amplitude or axis between beats and a possible wandering base-line. It can be seen in cardiac tamponade and severe pericardial effusion and is thought to be related to changes in the ventricular electrical axis due to fluid in the pericardium, as the heart essentially wobbles in the fluid filled ...

6. Junctional rhythm - Wikipedia

   en.wikipedia.org/wiki/Junctional_rhythm

   This sinus rhythm is important because it ensures that the heart's atria reliably contract before the ventricles, ensuring as optimal stroke volume and cardiac output. [ 4 ] In junctional rhythm, however, the sinoatrial node does not control the heart's rhythm – this can happen in the case of a block in conduction somewhere along the pathway ...

7. Atrial tachycardia - Wikipedia

   en.wikipedia.org/wiki/Atrial_tachycardia

   Atrial tachycardia is a type of heart rhythm problem in which the heart's electrical impulse comes from an ectopic pacemaker (that is, an abnormally located cardiac pacemaker) in the upper chambers of the heart, rather than from the sinoatrial node, the normal origin of the heart's electrical activity.

8. Best Buy broadly misses earnings estimates as consumers pull ...

   www.aol.com/finance/best-buy-expected-see...

   The company expects same-store sales growth for the fourth quarter to be flat to down 3%, slashing optimistic views that demand was stabilizing post-pandemic.

9. Bundle branch block - Wikipedia

   en.wikipedia.org/wiki/Bundle_branch_block

   The ECG will show a terminal R wave in lead V1 and a slurred S wave in lead I. Left bundle branch block widens the entire QRS, and in most cases shifts the heart's electrical axis to the left. The ECG will show a QS or rS complex in lead V1 and a monophasic R wave in lead I.