Catheter ablation of retrograde fast pathway in patients with atrioventricular nodal reentrant supraventricular tachycardia.

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dc.contributor.authorSethi, K Ken_US
dc.contributor.authorSingh, Ben_US
dc.contributor.authorNair, Men_US
dc.contributor.authorKalra, G Sen_US
dc.contributor.authorArora, Ren_US
dc.contributor.authorKhalilullah, Men_US
dc.date.accessioned1992-11-01en_US
dc.date.accessioned2009-05-27T04:20:18Z
dc.date.available1992-11-01en_US
dc.date.available2009-05-27T04:20:18Z
dc.date.issued1992-11-01en_US
dc.description.abstractAtrioventricular (AV) nodal reentrant tachycardia is a common cause of supraventricular tachycardia. The present study describes catheter ablation of this form of tachycardia in 23 patients using direct current shocks. The aim of ablation was to abolish conduction through the retrograde pathway while preserving the anterograde conduction. All patients had symptomatic, drug resistant, slow-fast variety of dual atrioventricular nodal reentrant tachycardia. Using the retrograde atrial activation in the His bundle catheter as the reference, the optimal ablation site was selected by positioning an electrode catheter to obtain atrial activation synchronous with or earlier than the atrial activation at the reference electrode. Shocks of 100-300 joules were delivered at this site resulting in blockade of retrograde conduction in all patients. Ventriculo-atrial conduction studied 24 hours after the procedure was still absent in 16, modified in 2 and resumed in 3 patients. Two patients developed permanent complete heart block and were given pacemakers. At repeat electrophysiologic study performed after 2-4 months in 10 patients, the supraventricular tachycardia could not be induced. The AH interval was 67 +/- 10 msec during control study and to 115 +/- 39 msec at restudy (p < 0.001). The ventriculo-atrial conduction was absent in 7 cases and had been modified in 1 case. Over a follow up period of 1-30 months (mean 10.8 +/- 7.1 mo) 17 patients (73%) remained free of the arrhythmia without medication or pacemaker. Three other patients were easily controlled with digoxin. Thus, catheter modification of AV node results in permanent cure of the AV nodal tachycardia in majority of patients.en_US
dc.description.affiliationDepartment of Cardiology, G B Pant Hospital, New Delhi.en_US
dc.identifier.citationSethi KK, Singh B, Nair M, Kalra GS, Arora R, Khalilullah M. Catheter ablation of retrograde fast pathway in patients with atrioventricular nodal reentrant supraventricular tachycardia. Indian Heart Journal. 1992 Nov-Dec; 44(6): 359-64en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/3706
dc.language.isoengen_US
dc.source.urihttps://indianheartjournal.comen_US
dc.subject.meshAdolescenten_US
dc.subject.meshAdulten_US
dc.subject.meshAtrioventricular Node --surgeryen_US
dc.subject.meshCatheter Ablationen_US
dc.subject.meshChilden_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshTachycardia, Atrioventricular Nodal Reentry --physiopathologyen_US
dc.subject.meshTreatment Outcomeen_US
dc.titleCatheter ablation of retrograde fast pathway in patients with atrioventricular nodal reentrant supraventricular tachycardia.en_US
dc.typeJournal Articleen_US
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