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Effect on ventricular performance of direct current electrical shock for catheter ablation of the atrioventricular junction.

In ten patients undergoing catheter ablation of the atrioventricular function (CAVj) because of therapy refractoriness of supraventricular arrhythmias, the effect of repeated high energy direct current (DC) shock on left ventricular function has been investigated. Endsystolic pressure-volume relatio...

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Published in:Pacing & Clinical Electrophysiology Vol. 15; no. 3; pp. 344 - 357
Main Authors: Auricchio A, Klein H, Trappe H, Salo R
Format: research Journal Article
Published: Wiley-Blackwell Mar1992
Online Access:View this record in EBSCOhost
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      jtl: Pacing & Clinical Electrophysiology
      issn: 01478389
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      dt: Mar1992
      vid: 15
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      pub: Wiley-Blackwell
      place: Malden, Massachusetts
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        10.1111/j.1540-8159.1992.tb06504.x
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      tig:
        atl: Effect on ventricular performance of direct current electrical shock for catheter ablation of the atrioventricular junction.
      aug:
        au:
          Auricchio A
          Klein H
          Trappe H
          Salo R
      sug:
        subj:
          Bundle of HIS Surgery
          Cardiovascular System Physiology
          Cautery
          Tachycardia, Supraventricular Surgery
          Adult
          Female
          Male
          Middle Age
          Prospective Studies
          Tachycardia, Supraventricular Epidemiology
          Tachycardia, Supraventricular Physiopathology
          Human
          Adult: 19-44 years
          Middle Aged: 45-64 years
          Female
          Male
      ab: In ten patients undergoing catheter ablation of the atrioventricular function (CAVj) because of therapy refractoriness of supraventricular arrhythmias, the effect of repeated high energy direct current (DC) shock on left ventricular function has been investigated. Endsystolic pressure-volume relation (ESPVRJ and the positive first derivative of ventricular pressure (dP/dt) have been used as indices of left ventricular systolic function, while the time constant of isovolumic pressure decay, the diastolic stiffness, and the negative dP/dt represented the diastolic function parameters, respectively. Each patient received at least two and no more than three DC shocks for successful CAVj, with an energy of 360 joules. Significant acute reduction of both systolic and diastolic function was noted after each DC shock, with a slow partial recovery of both phases. The recovery process involved the systolic phase earlier and more completely than the diastolic one. The alterations observed could not be predicted from preablation values, but were significantly related to cumulative energy dose index for body weight, in conclusion, repeated high energy DC shocks acutely, but reversibly. impair left ventricular function; in addition, the ventricular function reduction is primarily related to the total ablation energy indexed for body weight,
      pubtype: Academic Journal
      doctype:
        research
        Journal Article
      ougenre: Article
    language: English
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