Abstract
BACKGROUND: -The prognostic value of electrophysiological investigations in individuals with Brugada syndrome remains controversial. Different groups have published contradictory data. Long-term follow up is needed to clarify this issue.
METHODS AND RESULTS: -Patients presenting with spontaneous or drug-induced Brugada type I electrocardiogram (ECG) and in whom PES was performed at our institution were considered eligible for this study. A total of 403 consecutive patients (235 males, 58.2%; mean age: 43.2±16.2 years) were included. VA during PES were induced in 73 (18.1%) patients. After a mean follow-up time of 74.3±57.3 months, (median 57.3), 25 arrhythmic events occurred (16 in the inducible group and 9 in the non inducible). VA inducibility presented a hazard ratio for events of 8.3 (95% CI 3.6 - 19.4), p<0.01.
CONCLUSIONS: -Programmed ventricular stimulation of the heart is a good predictor of outcome in individuals with Brugada syndrome. It might be of special value to guide further management when performed in asymptomatic individuals. The over- all accuracy of the test makes it a suitable screening tool to reassure non-inducible asymptomatic individuals.
Original language | English |
---|---|
Pages (from-to) | 777-784 |
Number of pages <span style="color:red"p> <font size="1.5"> ✽ </span> </font> | 8 |
Journal | Circulation: Arrhythmia and Electrophysiology |
Volume | 8 |
Issue number | 4 |
Early online date | 22 Apr 2015 |
DOIs | |
Publication status | Published - 22 Aug 2015 |
Keywords
- arrhythmias
- Brugada syndrome
- cardiac
- electrophysiology
- prognosis
- implantable cardioverter defibrillator
- ajmaline
- flecainide
- procainamide
- acute heart infarction
- adolescent
- adult
- aged
- article
- atrial fibrillation
- cardiogenic shock
- cause of death
- child
- device infection
- ECG abnormality
- electrocardiogram
- electrostimulation
- event free survival
- faintness
- female
- follow up
- heart electrophysiology
- heart rupture
- heart stimulation
- heart supraventricular arrhythmia
- heart ventricle arrhythmia
- heart ventricle extrasystole
- human
- lead dislocation
- lead fracture
- major clinical study
- male
- medical device complication
- pacemaker implantation
- predictive value
- priority journal
- programmed electrical stimulation
- prospective study
- pulse generator migration
- QT prolongation
- second degree atrioventricular block
- septic shock
- sinus node disease
- sinus tachycardia
- ST segment elevation
- T wave
- very elderly