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  2. Bundle branch block - Wikipedia

    en.wikipedia.org/wiki/Bundle_branch_block

    A bundle branch block can be diagnosed when the duration of the QRS complex on the ECG exceeds 120 ms. A right bundle branch block typically causes prolongation of the last part of the QRS complex and may shift the heart's electrical axis slightly to the right.

  3. Right bundle branch block - Wikipedia

    en.wikipedia.org/wiki/Right_bundle_branch_block

    A right bundle branch block (RBBB) is a heart block in the right bundle branch of the electrical conduction system. [1] During a right bundle branch block, the right ventricle is not directly activated by impulses traveling through the right bundle branch. However, the left bundle branch still normally activates the left ventricle.

  4. Tachycardia-dependent bundle branch block - Wikipedia

    en.wikipedia.org/wiki/Tachycardia-dependent...

    This manifests in a similar fashion to a regular bundle branch block, but occurs only under conditions that affect contractile rate. Tachycardia-dependent bundle branch block (TDBBB) can affect either ventricle in the heart, and occurs when the heart's rate of contraction reaches an elevated level and becomes uncoupled from the heart's ...

  5. Ebstein's anomaly - Wikipedia

    en.wikipedia.org/wiki/Ebstein's_anomaly

    A 12-lead ECG of a woman with Ebstein's anomaly: The ECG shows signs of right atrial enlargement, best seen in V1. Other P waves are broad and tall, these are termed "Himalayan" P waves. Also, a right bundle-branch block pattern and a first-degree atrioventricular block (prolonged PR-interval) due to intra-atrial conduction delay are seen.

  6. Junctional ectopic tachycardia - Wikipedia

    en.wikipedia.org/wiki/Junctional_Ectopic_Tachycardia

    JET in a 2-month-old girl following cardiac surgery. In this case the right bundle branch block was present during tachycardia and during normal sinus rhythm. JET is most commonly diagnosed using a 12-lead ECG. The appearance is usually of a tachycardia with rapid, regular ventricular rates of 170-260 beats per minute. [6]

  7. Heart block - Wikipedia

    en.wikipedia.org/wiki/Heart_block

    Sinus rhythm (rate = 100/min) with 3:2 and 2:1 Type II AV block; right bundle branch block Sinus tachycardia with complete AV block and resulting junctional escape. Following the path of the electrical signals, the places where conduction can be blocked give rise to different kinds of heart blocks:

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  9. Wikipedia : Osmosis/Bundle Branch Block

    en.wikipedia.org/.../Bundle_Branch_Block

    So if the block happens on the right side, it’s referred to as a right bundle branch block. So with this type, the electrical signal starts at the SA node, contracts the atria, moves through the AV node, splits at the bundle of His, and then moves down the left bundle branch but is blocked on the right bundle branch.