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  2. Supraventricular tachycardia - Wikipedia

    en.wikipedia.org/wiki/Supraventricular_tachycardia

    Junctional ectopic tachycardia (JET) is a rare tachycardia caused by increased automaticity of the AV node itself initiating frequent heartbeats. On the ECG, junctional tachycardia often presents with abnormal morphology P-waves that may fall anywhere in relation to a regular, narrow QRS complex. It is often due to drug toxicity. [22]

  3. Tachycardia - Wikipedia

    en.wikipedia.org/wiki/Tachycardia

    A narrow complex tachycardia with an accessory conduction pathway, often termed "supraventricular tachycardia with pre-excitation" (e.g. Wolff–Parkinson–White syndrome) Pacemaker-tracked or pacemaker-mediated tachycardia; Tachycardias may be classified as either narrow complex tachycardias (supraventricular tachycardias) or wide complex ...

  4. Wolff–Parkinson–White syndrome - Wikipedia

    en.wikipedia.org/wiki/Wolff–Parkinson–White...

    WPW pattern with hemodynamically stability and orthodromic AVRT leading to a regular narrow complex tachycardia may be managed similarly to other regular narrow complex supraventricular tachycardias: first with vagal maneuvers followed by a trial of adenosine (first-line therapy). The 2015 ACC/AHA/HRS guidelines recommend beta-blockers or ...

  5. Atrioventricular reentrant tachycardia - Wikipedia

    en.wikipedia.org/wiki/Atrioventricular_reentrant...

    The electrocardiogram (ECG) would appear as a narrow-complex SVT. Between episodes of tachycardia the affected person is likely to be asymptomatic; however, the ECG would demonstrate the classic delta wave in Wolff–Parkinson–White syndrome. [2]

  6. Paroxysmal supraventricular tachycardia - Wikipedia

    en.wikipedia.org/wiki/Paroxysmal_supra...

    Otherwise synchronized cardioversion is the treatment. [4] Future episodes can be prevented by catheter ablation. [3] About 2.3 per 1000 people have paroxysmal supraventricular tachycardia. [5] Problems typically begin in those 12 to 45 years old. [3] [5] Women are more often affected than men. [3]

  7. Third-degree atrioventricular block - Wikipedia

    en.wikipedia.org/wiki/Third-degree_atrio...

    Atropine is often used as a first line treatment of a third-degree heart block in the presence of a narrow QRS which indicates a nodal block, but, may have little to no effect in an infra-nodal block. [11] Atropine works by reducing vagal stimulation through the AV node but will not be effective in those who have had a previous heart transplant ...

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  9. Junctional tachycardia - Wikipedia

    en.wikipedia.org/wiki/Junctional_tachycardia

    Junctional tachycardia is a form of supraventricular tachycardia characterized by involvement of the AV node. [1] It can be contrasted to atrial tachycardia . It is a tachycardia associated with the generation of impulses in a focus in the region of the atrioventricular node due to an A-V disassociation. [ 2 ]

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