Abstract
Aims: To show 2 examples in which the analysis of the effect of bundle branch block on orthodromic reciprocating tachycardia cycle length was misleading. Methods and results: We performed an electrophysiological study in two patients with orthodromic reciprocating tachycardia showing a transition from wide to narrow QRS during tachycardia. Our two cases of left bundle branch block during reciprocating tachycardia using infero-septal pathways show that ventricular to atrial conduction time prolongation may be larger than 30 ms and may be concealed by a shortening of atrial to ventricular conduction time. In the 2 cases, the atrial insertion of the accessory pathway could be successfully ablated from the right atria at the ostium of the coronary sinus. Conclusions: The observation of the association between left bundle branch block and cycle length prolongation during reciprocating tachycardia may be associated with a successful ablation at the ostium of the coronary sinus.
| Original language | English |
|---|---|
| Pages (from-to) | 920-922 |
| Number of pages | 3 |
| Journal | Europace |
| Volume | 9 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2007 Oct |
| Externally published | Yes |
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Keywords
- Ablation
- Accessory pathway
- Bundle branch block
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
Cite this
Functional bundle branch block and orthodromic reciprocating tachycardia cycle length : Do not bet on accessory pathway location. / Extramiana, Fabrice; Takatsuki, Seiji; Hayashi, Meiso; Leenhardt, Antoine.
In: Europace, Vol. 9, No. 10, 10.2007, p. 920-922.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Functional bundle branch block and orthodromic reciprocating tachycardia cycle length
T2 - Do not bet on accessory pathway location
AU - Extramiana, Fabrice
AU - Takatsuki, Seiji
AU - Hayashi, Meiso
AU - Leenhardt, Antoine
PY - 2007/10
Y1 - 2007/10
N2 - Aims: To show 2 examples in which the analysis of the effect of bundle branch block on orthodromic reciprocating tachycardia cycle length was misleading. Methods and results: We performed an electrophysiological study in two patients with orthodromic reciprocating tachycardia showing a transition from wide to narrow QRS during tachycardia. Our two cases of left bundle branch block during reciprocating tachycardia using infero-septal pathways show that ventricular to atrial conduction time prolongation may be larger than 30 ms and may be concealed by a shortening of atrial to ventricular conduction time. In the 2 cases, the atrial insertion of the accessory pathway could be successfully ablated from the right atria at the ostium of the coronary sinus. Conclusions: The observation of the association between left bundle branch block and cycle length prolongation during reciprocating tachycardia may be associated with a successful ablation at the ostium of the coronary sinus.
AB - Aims: To show 2 examples in which the analysis of the effect of bundle branch block on orthodromic reciprocating tachycardia cycle length was misleading. Methods and results: We performed an electrophysiological study in two patients with orthodromic reciprocating tachycardia showing a transition from wide to narrow QRS during tachycardia. Our two cases of left bundle branch block during reciprocating tachycardia using infero-septal pathways show that ventricular to atrial conduction time prolongation may be larger than 30 ms and may be concealed by a shortening of atrial to ventricular conduction time. In the 2 cases, the atrial insertion of the accessory pathway could be successfully ablated from the right atria at the ostium of the coronary sinus. Conclusions: The observation of the association between left bundle branch block and cycle length prolongation during reciprocating tachycardia may be associated with a successful ablation at the ostium of the coronary sinus.
KW - Ablation
KW - Accessory pathway
KW - Bundle branch block
UR - http://www.scopus.com/inward/record.url?scp=42449120683&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=42449120683&partnerID=8YFLogxK
U2 - 10.1093/europace/eum183
DO - 10.1093/europace/eum183
M3 - Article
VL - 9
SP - 920
EP - 922
JO - Europace
JF - Europace
SN - 1099-5129
IS - 10
ER -