Abstract:
BACKGROUND:The prognostic significance of ventricular flutter (VFL) induced during programmed electrical stimulation (PES) is currently unknown. METHODS:This study examined patients who had PES-induced VFL and assessed their long-term prognosis compared with patients who had inducible sustained monomorphic ventricular tachycardia (SMVT). RESULTS:Of 3414 patients undergoing PES, 74 (2%) had sustained VFL. They were compared with a group of 71 patients undergoing PES in the same time frame who had inducible SMVT. Patients with inducible VFL had a higher ejection fraction than patients with SMVT (0.39 vs 0.33; P =.05). More aggressive pacing was required for arrhythmia induction in patients with VFL, with more stimuli (2.7 +/- 0.5 vs 2.2 +/- 0.6; P <.01) and tighter S(2), S(3), and S(4) intervals. After a mean follow-up of 30 +/- 31 months, the mortality rate was 34% in patients with VFL and 30% in patients with SMVT (P =.41). No difference in the 2 groups in overall survival or a combined end point of sudden death or appropriate implantable cardioverter defibrillator shock was revealed with Kaplan-Meier analysis. CONCLUSION:The long-term prognosis of patients with inducible VFL is similar to that of patients with inducible SMVT, even when VFL is induced with a relatively aggressive protocol.
journal_name
Am Heart Jjournal_title
American heart journalauthors
Gurevitz O,Viskin S,Glikson M,Ballman KV,Rosales AG,Shen WK,Hammill SC,Friedman PAdoi
10.1016/j.ahj.2003.11.012subject
Has Abstractpub_date
2004-04-01 00:00:00pages
649-54issue
4eissn
0002-8703issn
1097-6744pii
S0002870303008251journal_volume
147pub_type
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