Focal Atrial Tachycardia (FAT) • LITFL • ECG Library Diagnosis
Oct 8, 2024 · Focal atrial tachycardia (FAT) is a form of supraventricular tachycardia (SVT) originating from a single ectopic focus within the atria but outside of the sinus node.
ECG Case 132: Atrial tachycardia with 2:1 block and LBBB
Jan 27, 2023 · Although atrial activity is not seen in the other leads, the most likely diagnosis is atrial tachycardia with 2:1 AV block. The QRS complex duration is prolonged (0.12 sec) with pattern of LBBB.
Atrial Tachycardia with 2:1 AV Block ECG (Example 2)
1. Atrial Tachycardia with 2:1 conduction. 2. Left Bundle Branch Block. © 2024 Healio All Rights Reserved.
AV block: 2nd degree, “fixed ratio” blocks - LITFL
Oct 8, 2024 · Second degree heart block with a fixed ratio of P waves: QRS complexes (e.g. 2:1, 3:1, 4:1). Fixed ratio blocks can be the result of either Mobitz I or Mobitz II conduction. The atrial rate is approximately 75 bpm. The ventricular rate is approximately 38 bpm. Non-conducted P waves are superimposed on the end of each T wave.
Atrial Flutter • LITFL • ECG Library Diagnosis
Oct 8, 2024 · Atrial flutter is a form of supraventricular tachycardia caused by a re-entry circuit within the right atrium. The length of the re-entry circuit corresponds to the size of the right atrium, resulting in a fairly predictable atrial rate of around 300 bpm (range 200-400)
Atrial Flutter or Atrial Tachycardia? | 2017-08-01 - Relias Media
Aug 15, 2017 · Therefore, this is a supraventricular tachycardia (SVT) rhythm with 2:1 AV conduction. The differential diagnosis is between atrial flutter and atrial tachycardia. In favor of atrial flutter: Regular and rapid atrial activity with a peaked upward deflection in this right-sided MCL-1 monitoring lead.
Atrial flutter with 2:1 conduction - ECG Guru
Dec 18, 2023 · One of the most frequently misdiagnosed rhythms, atrial flutter with 2:1 conduction often masquerades as sinus tach. Sinus tach usually has an obvious cause, such as exercise, severe hypovolemia, or age less than 6 months.
Paroxysmal Atrial Tachycardia With Block - McGraw Hill Medical
Shows atrial tachycardia usually with 2:1 AV block. The ventricular rate is often within the normal range. Varying block may also be noted + + +
Narrow Complex Tachycardia With Intermittent 2:1 …
Orthodromic AV re-entry tachycardia (AVRT) is incompatible with a 2:1 AV block pattern. In AVRT, the atrium, AV node and infranodal conduction system, ventricle, and the accessory pathway are all participatory in the re-entry mechanism, and a block in any 1 of these components will terminate the tachycardia.
Atrioventricular nodal re-entrant tachycardia with a 2:1 ...
May 8, 2024 · A continuous atrial pacing protocol induced a supraventricular tachycardia with 2:1 AV ratio and fixed VA intervals of 36 ms and concentric atrial activation. This ruled out the possibility of an atrioventricular re-entrant tachycardia by an accessory pathway.