Abstract:
:The aim of this study was to evaluate differences in the electrophysiological features of atrioventricular reentrant tachycardia (AVRT) in patients with Wolf-Parkinson-White syndrome (WPW) associated with or without atrial fibrillation (AF). We included 119 patients with WPW and orthodromic AVRT during electrophysiological study. The patients were divided into two groups; group I with documented episodes of AF (n=39, mean age 33.3+/-11.5 years), and group II without AF (n=80, mean age 35.3+/-13.8). We compared parameters of accessory pathway (AP), atrium and ventricle between two groups and found no significant difference. We next assessed the electrophysiological parameters of AVRT in both groups in terms of conduction times and atrioventricular (AV) activation relations. A significant negative correlation was found in group II between anterograde and retrograde conduction times measured as AV and VA intervals at the site of the earliest atrial activation (r=-0.43, P<0.0001), whereas no significant correlation was seen in group I (r=-0.29, P=0.1). Comparative analysis between two groups revealed significant difference in A-V/V-V index (P=0.05). These data suggest the presence of different electrophysiological properties of AP during AVRT in only few respects in patients with AF compared to those without it.
journal_name
Int J Cardioljournal_title
International journal of cardiologyauthors
Emkanjoo Z,Ebadi K,Sharifi M,Alizadeh A,Barakpour H,Phaghfourian B,Fazelifar AF,Haghjoo M,Sadr-Ameli MAdoi
10.1016/j.ijcard.2008.11.114subject
Has Abstractpub_date
2010-07-09 00:00:00pages
196-8issue
2eissn
0167-5273issn
1874-1754pii
S0167-5273(08)01326-0journal_volume
142pub_type
信件abstract::Pregnancy can precipitate cardiac arrhythmias not previously present in seemingly well individuals. Risk of arrhythmias is relatively higher during labor and delivery. Potential factors that can promote arrhythmias in pregnancy and during labor and delivery include the direct cardiac electrophysiological effects of ho...
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,随机对照试验
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