| Atrioventricular conduction: a determinant for the manifestation of ventricular preexcitation in patients with Wolff-Parkinson-White syndrome. | |
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MedLine Citation:
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PMID: 11576154 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The relation between the atrioventricular conduction properties of the atrioventricular node and the anterograde conduction ability over the accessory pathway in the Wolff-Parkinson-White syndrome has never been studied. Atrioventricular nodal characteristics were studied in 285 patients with manifest and 204 with concealed accessory pathway who underwent radiofrequency ablation, and compared with 146 controls. First and second degree atrioventricular block was observed in 13 (5%) preexcitation patients after ablation, compared with none in concealed accessory pathway (P=0.001) and control patients (P=0.006). The atrial-His intervals in preexcitation patients (88 +/- 20 ms) was significantly longer than in concealed accessory pathway (76 +/- 15 ms, P<0.0001) and control patients (77 +/- 15 ms, P=0.0007), as was PR intervals (165 +/- 25 versus 149 +/- 20 and 150 +/- 21 ms, P<0.0001, respectively) even after excluding those with atrioventricular block. Significant differences in PR and atrial-His intervals were not observed between concealed accessory pathway and control patients. More preexcitation patients had ventriculoatrial dissociation than had patients in the other groups. The results indicate that atrioventricular block is not uncommon in preexcitation patients and a relatively long atrioventricular conduction time is an electrophysiological prerequisite for the manifestation of preexcitation in the Wolff-Parkinson-White syndrome. |
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Authors:
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S Liu; S B Olsson; E Hertervig; O Kongstad; S Yuan |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Clinical physiology (Oxford, England) Volume: 21 ISSN: 0144-5979 ISO Abbreviation: Clin Physiol Publication Date: 2001 Sep |
Date Detail:
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Created Date: 2001-09-28 Completed Date: 2001-12-12 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8309768 Medline TA: Clin Physiol Country: England |
Other Details:
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Languages: eng Pagination: 534-40 Citation Subset: IM |
Affiliation:
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Department of Cardiology, University Hospital, Lund University, S-221 85 Lund, Sweden. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Atrioventricular Node / physiopathology* Catheter Ablation Electrocardiography Electrophysiology Female Heart Block / epidemiology, etiology Humans Incidence Male Middle Aged Neural Conduction Reference Values Time Factors Wolff-Parkinson-White Syndrome / complications, physiopathology*, surgery |
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