escape rhythm
escape beat

This is known as an escape rhythm.

If a pacemaker other than the sinoatrial node is pacing the heart, this condition is known as an escape rhythm.

However, if the ventricle does not receive triggering signals at a rate high enough, the ventricular myocardium itself becomes the pacemaker (escape rhythm).

Ouabain infusion decreases ventricular escape time and increases ventricular escape rhythm.

The escape rhythm typically originates in the ventricles, producing a wide complex escape rhythm.

The medical significance of this type of AV block is that it may progress rapidly to complete heart block, in which no escape rhythm may emerge.

Rhythm: Irregular in single junctional escape complex; regular in junctional escape rhythm.

A ventricular bradycardia, also known as ventricular escape rhythm or idioventricular rhythm, is a heart rate of less than 50 bpm.

It is usually not effective in second-degree heart block Mobitz type 2, and in third-degree heart block with a low Purkinje or ventricular escape rhythm.

In the latter case, however, because the conduction system disease is diffuse in nature, the escape rhythm may be fascicular or ventricular, which may be at rates that are life-threateningly low.

Atropine is also useful in treating second-degree heart block Mobitz Type 1 (Wenckebach block), and also third-degree heart block with a high Purkinje or AV-nodal escape rhythm.

In the former case, if the block at the AV node level becomes complete, the escape rhythm will originate from the bundle of His, which typically will generate heart rates in the 40s, allowing the individual to survive and complain of symptoms of fatigue or near-syncope to their physician.

Transcutaneous pacing is no longer indicated for the treatment of asystole (cardiac arrest associated with a "flat line" on the ECG), with the possible exception of witnessed asystole (as in the case of bifascicular block that progresses to complete heart block without an escape rhythm).

He sat on, muscles knotted, the litany of escape beating in his head.

An electrocardiogram can be used to identify a ventricular escape beat.

An escape beat is a form of cardiac arrhythmia, in this case known as an ectopic beat.

If there are only one or two ectopic beats, they are considered escape beats.

The pause ends with a P wave, instead of a junctional escape beat the way a sinus arrest would.

The ventricular escape beat follows a long pause in ventricular rhythm and acts to prevent cardiac arrest.

A junctional escape beat is a delayed heartbeat originating not from the atrium but from an ectopic focus somewhere in the AV junction.

Ventricular escape beats differ from ventricular extrasystoles (or premature ventricular contractions), which are spontaneous electrical discharges of the ventricles.

When the sinus rate falls below the discharge rate of the AV node, this becomes the dominant pacemaker, and the result is called a junctional escape beat.

If the rate from both the SA and AV node fall below the discharge rate of ventricular pacemaker cells, a ventricular escape beat ensues.

It indicates a failure of the electrical conduction system of the heart to stimulate the ventricles (which would lead to the absence of heartbeats, unless ventricular escape beats occur).

For a patient with a ventricular escape beat, the shape of the QRS complex is broader as the impulse can not travel quickly via the normal electrical conduction system.

Cardiac dysrhythmias (premature atrial contraction, junctional escape beat, premature ventricular contraction, atrial fibrillation, supraventricular tachycardia, ventricular tachycardia, ventricular fibrillation, heart block).

In cardiology a ventricular escape beat is a self-generated electrical discharge initiated by, and causing contraction of, the ventricles of the heart; normally the heart rhythm is begun in the atria of the heart and is subsequently transmitted to the ventricles.

In June, a girl was beaten by students with a shower-curtain rod; in September 2002 a student bent on escape beat a guard with a vacuum-cleaner pipe and shattered his cheekbone, said Mr. Pullan, Spring Creek Lodge's the associate director, and several staff members.