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Tachycardia: Difference between revisions
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→AV junctional tachycardia
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===AV junctional tachycardia=== | ===AV junctional tachycardia=== | ||
An AV junctional tachycardia is a tachycardia resulting from regular frequent firing (60-100 bpm) of the AV-node. It has the characteristics of a small QRS with a retrograde or no P-wave. The P-wave is not always visible because it can be hidden in the QRS complex. If it is visible it is negative in the inferior leads and narrow, suggesting an AV-nodal origin. The small QRS is not preceded by a p-wave as atrium and ventricle are activated | An AV junctional tachycardia is a tachycardia resulting from regular frequent firing (60-100 bpm) of the AV-node. It has the characteristics of a small QRS with a retrograde or no P-wave. The P-wave is not always visible because it can be hidden in the QRS complex. If it is visible it is negative in the inferior leads and narrow, suggesting an AV-nodal origin. The small QRS is not preceded by a p-wave as atrium and ventricle are both activated from the AV-node. | ||
===AV Nodal Re-entry Tachycardia (AVNRT)=== | ===AV Nodal Re-entry Tachycardia (AVNRT)=== | ||