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Antitachycardia pacing reduces appropriate and inappropriate shocks in children and congenital heart disease patients.

Abstract：

BACKGROUND:Antitachycardia pacing (ATP) can reduce implantable cardioverter-defibrillator shocks, but its use in children and patients with congenital heart disease (CHD) is not well described. OBJECTIVE:To review the efficacy of ATP in children and patients with CHD. METHODS:We reviewed implantable cardioverter-defibrillator therapies in children and patients with CHD (aged 2-52 years) at our institution. Appropriate therapies were defined as those delivered for true ventricular tachycardia (VT) or ventricular fibrillation; other therapies were defined as inappropriate. RESULTS:During a median follow-up of 4 years (range 0.5-15 years), 17 of 79 patients (23%) received appropriate therapy and 14 received ATP for 100 episodes of VT. ATP was highly successful (88%) in terminating VT, and only 10 of 100 episodes required a shock. Shocks were effective in terminating VT/ventricular fibrillation in 21 of 24 episodes (87%). The outcomes of appropriate therapy were similar for ATP and shocks (success 88% vs 87%, failure 9% vs 8%, acceleration 3% vs 4% for ATP and shocks, respectively). Thirty-one patients (39%) received inappropriate therapy. Inappropriate ATP (without subsequent shocks) was delivered to 11 patients for the following: sinus tachycardia (19 episodes in 7 patients) with slowing of the rate after ATP, T-wave oversensing (2 episodes in 2 patients) with loss of oversensing after ATP, and reentrant supraventricular tachycardia (14 episodes in 2 patients) terminated with ventricular ATP. CONCLUSIONS:ATP is highly efficacious for VT in children and patients with CHD. In addition to reducing appropriate shocks, inappropriate shocks due to sinus or supraventricular tachycardia can be significantly reduced with ATP.

journal_name

Heart Rhythm

journal_title

Heart rhythm

authors

Kalra Y,Radbill AE,Johns JA,Fish FA,Kannankeril PJ

doi

10.1016/j.hrthm.2012.06.042

subject

Has Abstract

pub_date

2012-11-01 00:00:00

pages

1829-34

issue

11

eissn

1547-5271

issn

1556-3871

pii

S1547-5271(12)00723-0

journal_volume

9

pub_type

杂志文章

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