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עמוד בית
Thu, 21.11.24

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May 2018
Eran Leshem MD, Michael Rahkovich MD, Anna Mazo MD, Mahmoud Suleiman MD, Miri Blich MD, Avishag Laish-Farkash MD, Yuval Konstantino MD, Rami Fogelman MD, Boris Strasberg MD, Michael Geist MD, Israel Chetboun MD, Moshe Swissa MD, Michael Ilan MD, Aharon Glick MD, Yoav Michowitz MD, Raphael Rosso MD, Michael Glikson MD and Bernard Belhassen MD

Background: Limited information exists about detailed clinical characteristics and management of the small subset of Brugada syndrome (BrS) patients who had an arrhythmic event (AE).

Objectives: To conduct the first nationwide survey focused on BrS patients with documented AE.

Methods: Israeli electrophysiology units participated if they had treated BrS patients who had cardiac arrest (CA) (lethal/aborted; group 1) or experienced appropriate therapy for tachyarrhythmias after prophylactic implantable cardioverter defibrillator (ICD) implantation (group 2).

Results: The cohort comprised 31 patients: 25 in group 1, 6 in group 2. Group 1: 96% male, mean CA age 38 years (range 13–84). Nine patients (36%) presented with arrhythmic storm and three had a lethal outcome; 17 (68%) had spontaneous type 1 Brugada electrocardiography (ECG). An electrophysiology study (EPS) was performed on 11 patients with inducible ventricular fibrillation (VF) in 10, which was prevented by quinidine in 9/10 patients. During follow-up (143 ± 119 months) eight patients experienced appropriate shocks, none while on quinidine. Group 2: all male, age 30–53 years; 4/6 patients had familial history of sudden death age < 50 years. Five patients had spontaneous type 1 Brugada ECG and four were asymptomatic at ICD implantation. EPS was performed in four patients with inducible VF in three. During long-term follow-up, five patients received ≥ 1 appropriate shocks, one had ATP for sustained VT (none taking quinidine). No AE recurred in patients subsequently treated with quinidine.

Conclusions: CA from BrS is apparently a rare occurrence on a national scale and no AE occurred in any patient treated with quinidine.

July 2008
A. Shalev, L. Zeller, O. Galante, A. Shimony, H. Gilutz and R. Illia
June 2008
R. Rosso, A. Click, M. Glikson, M. Swissa, S. Rosenhek, I. Shetboun, V. Khalamizer, M. Boulos, M. Geist, B. Strasberg, M. Ilan and B. Belhassen

background: many electrophysiologists recommend implantable cardioverter defibrillators for patients with Brugada syndrome who are cardiac arrest survivors or presumed at high risk of sudden death (patients with syncope or a familial history of sudden death or those with inducible ventricular fibrillation at electrophysiologic study).

objectives: To assess the efficacy and complications of ICD therapy in patients with Brugada syndrome.

Methods: The indications, efficacy and complications of ICD therapy in all patient with Brugada syndrome who underwent ICD implantation in 12 Israeli centers between 1994 and 2007 were analyzed.

Results: there were 59 patients (53 males, 89.8%) with a mean age of 44.1 years. At diagnosis 42 patients (71.2%) were symptomatic while 17 (28.8%) were asymptomatic. The indications for ICD implantation were: a history of cardiac arrest (n=11, 18.6%), syncope (n=31, 52.5%), inducible VF in symptomatic patients (n=14, 23.7%), and a family history of sudden death (n=3, 0.5%). The overall inducibility rates of VF were 89.2% and 93.3% among the symptomatic and a symptomatic patients, respectively (P=NS). During a follow-up of 4-160 (45+-35) months, all patients (except one who died from cancer) are alive. Five patients (8.4%), all with a history of cardiac arrest, had appropriate ICD discharge. Conversely, none of the patients without prior cardiac arrest had appropriate device therapy during 39+-30 month follow-up. Complications were encountered in 19 patients (32%). Inappropriate shocks occurred in 16 (27.1%) due to lead failure/dislodgment (n=5), T wave oversensing (n=2), device failure (n=1), sinus tachycardia (n=4), and supraventricular tachycardia (n=4). One patient suffered a pneumothorax and another a brachial plexus injury during the implant procedure. One patient suffered a late (2 months) perforation of the right ventricle by the implanted lead. Eleven patients (18.6%) required a reintervention either for infection (n=1) or lead problems (n=10). Eight patients (13.5%) required psychiatric assistance due to complications related to the ICD (mostly inappropriate shocks in 7 patients).

Conclusions: In this Israeli population with Brugada syndrome treated with ICD, appropriate device therapy was limited to cardiac arrest survivors while none of the other patients including those with syncope and/or inducible VF suffered an arrhythmic event. The overall complication rate was high.
 

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