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Typical atrial flutter is recognized on an electrocardiogram by the presence of characteristic "flutter waves" at a regular rate of 250 to 350 beats per minute. Flutter waves may not be evident on an ECG in atypical forms of atrial flutter.
Ventricular flutter is an arrhythmia, more specifically a tachycardia affecting the ventricles with a rate over 250-350 beats/min, and one of the most indiscernible. It is characterized on the ECG by a sinusoidal waveform without clear definition of the QRS and T waves.
There are actually two types, type 1 or typical atrial flutter is more common and is caused by a single reentrant circuit that moves around the annulus, or the ring of the tricuspid valve of the right atrium, usually in a counterclockwise direction when viewed looking up through the tricuspid valve.
An example of an ECG tracing typical of uncommon AV nodal reentrant tachycardia. Highlighted in yellow is the P wave that falls after the QRS complex. Specialty: Cardiology: Symptoms: Palpitations, chest tightness, neck pulsation: Diagnostic method: electrocardiogram, electrophysiological study: Differential diagnosis
A 12-lead ECG showing paroxysmal supraventricular tachycardia at about 180 beats per minute. Subtypes of SVT can often be distinguished by their electrocardiogram (ECG) characteristics. Most have a narrow QRS complex , although, occasionally, electrical conduction abnormalities may produce a wide QRS complex that may mimic ventricular ...
There are 6 different sinus arrhythmia. [1] [2]A normal heart should have a normal sinus rhythm, this rhythm can be identified by a ventricular rate of 60-100 bpm, at a regular rate, with a normal PR interval (0.12 to 0.20 second) and a normal QRS complex (0.12 second and less).
Ventricular tachycardia (V-tach or VT) is a cardiovascular disorder in which fast heart rate occurs in the ventricles of the heart. [3] Although a few seconds of VT may not result in permanent problems, longer periods are dangerous; and multiple episodes over a short period of time are referred to as an electrical storm.
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 ...