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Supraventricular tachycardia and sinus rhythm with contralateral bundle branch block patterns.

Han S, Miller JM, Das MK - Korean Circ J (2014)

Bottom Line: A contralateral bundle branch block (BBB) aberration during tachycardia with a preexisting BBB strongly suggests the presence of ventricular tachycardia.The patient had orthodromic atrioventricular tachycardia with a left BBB aberration in the presence of a preexisting right BBB due to an abnormal His-Purkinje system.We learned that the contralateral BBB aberration with supraventricular tachycardia could be seen when the His-Purkinje system was abnormal.

View Article: PubMed Central - PubMed

Affiliation: Krannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, IN, USA.

ABSTRACT
A contralateral bundle branch block (BBB) aberration during tachycardia with a preexisting BBB strongly suggests the presence of ventricular tachycardia. We report on a middle-aged, female patient presented with wide QRS tachycardia. The patient had orthodromic atrioventricular tachycardia with a left BBB aberration in the presence of a preexisting right BBB due to an abnormal His-Purkinje system. We learned that the contralateral BBB aberration with supraventricular tachycardia could be seen when the His-Purkinje system was abnormal.

No MeSH data available.


Related in: MedlinePlus

The surface electrocardiogram and the intracardiac electrograms during the tachycardia. Tachycardia terminated spontaneously without atrial activation. The earliest retrograde atrial (A) activation site was in the mid-CS (arrow). The His (H) activation followed the atrial activation and occurred before the beginning of the QRS. p: proximal, d: distal, CS: coronary sinus, HRA: high right atrium, RV: right ventricle.
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Figure 2: The surface electrocardiogram and the intracardiac electrograms during the tachycardia. Tachycardia terminated spontaneously without atrial activation. The earliest retrograde atrial (A) activation site was in the mid-CS (arrow). The His (H) activation followed the atrial activation and occurred before the beginning of the QRS. p: proximal, d: distal, CS: coronary sinus, HRA: high right atrium, RV: right ventricle.

Mentions: Fig. 2 shows that the LBBB-T terminated spontaneously and was followed by a sinus beat with a RBBB.


Supraventricular tachycardia and sinus rhythm with contralateral bundle branch block patterns.

Han S, Miller JM, Das MK - Korean Circ J (2014)

The surface electrocardiogram and the intracardiac electrograms during the tachycardia. Tachycardia terminated spontaneously without atrial activation. The earliest retrograde atrial (A) activation site was in the mid-CS (arrow). The His (H) activation followed the atrial activation and occurred before the beginning of the QRS. p: proximal, d: distal, CS: coronary sinus, HRA: high right atrium, RV: right ventricle.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4117850&req=5

Figure 2: The surface electrocardiogram and the intracardiac electrograms during the tachycardia. Tachycardia terminated spontaneously without atrial activation. The earliest retrograde atrial (A) activation site was in the mid-CS (arrow). The His (H) activation followed the atrial activation and occurred before the beginning of the QRS. p: proximal, d: distal, CS: coronary sinus, HRA: high right atrium, RV: right ventricle.
Mentions: Fig. 2 shows that the LBBB-T terminated spontaneously and was followed by a sinus beat with a RBBB.

Bottom Line: A contralateral bundle branch block (BBB) aberration during tachycardia with a preexisting BBB strongly suggests the presence of ventricular tachycardia.The patient had orthodromic atrioventricular tachycardia with a left BBB aberration in the presence of a preexisting right BBB due to an abnormal His-Purkinje system.We learned that the contralateral BBB aberration with supraventricular tachycardia could be seen when the His-Purkinje system was abnormal.

View Article: PubMed Central - PubMed

Affiliation: Krannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, IN, USA.

ABSTRACT
A contralateral bundle branch block (BBB) aberration during tachycardia with a preexisting BBB strongly suggests the presence of ventricular tachycardia. We report on a middle-aged, female patient presented with wide QRS tachycardia. The patient had orthodromic atrioventricular tachycardia with a left BBB aberration in the presence of a preexisting right BBB due to an abnormal His-Purkinje system. We learned that the contralateral BBB aberration with supraventricular tachycardia could be seen when the His-Purkinje system was abnormal.

No MeSH data available.


Related in: MedlinePlus