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Type I atrial flutter, counterclockwise rotation with 3:1 and 4:1 AV nodal block. Atrial flutter with a two to one block. Note the P waves hiding in the T waves in leads V1 and V2. Type I atrial flutter, also known as common atrial flutter or typical atrial flutter, has an atrial rate of 240 to 340 beats/minute.
Eventually, this will reach refractory conduction tissue and stop. The subsequent beat — if early enough — will find the right bundle still refractory and the process will repeat yielding a continued RBBB morphology. Another variation on this concept is seen in atrial flutter. As a result of the rapid atrial rate, some of the atrial ...
Type 2 or atypical atrial flutter is where a re-entrant circuit develops in either the right or left atrium, but the exact location is less clearly defined. Again though we’ve got a similar setup where a wave of activated tissue, or depolarization hits a bit of tissue in such a way that it creates a loop of depolarization that keeps going ...
Second-degree atrioventricular block (AV block) is a disease of the electrical conduction system of the heart.It is a conduction block between the atria and ventricles.The presence of second-degree AV block is diagnosed when one or more (but not all) of the atrial impulses fail to conduct to the ventricles due to impaired conduction.
Sinus tachycardia is usually apparent on an ECG, but if the heart rate is above 140 bpm the P wave may be difficult to distinguish from the previous T wave and one may confuse it with a paroxysmal supraventricular tachycardia or atrial flutter with a 2:1 block. Ways to distinguish the three are: [citation needed]
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If the baseline has a totally irregular form, this suggests fibrillatory waves of atrial fibrillation or possibly artefact; a saw tooth shaped baseline suggests the flutter waves of atrial flutter. With either of these rhythms, if the ventricular rate is fast, the fibrillatory or flutter waves can easily be misinterpreted as P waves.
There are four main types of SVT: atrial fibrillation, atrial flutter, paroxysmal supraventricular tachycardia (PSVT), and Wolff–Parkinson–White syndrome. [2] The symptoms of SVT include palpitations, feeling of faintness, sweating, shortness of breath, and/or chest pain. [1]