Background Cardiac-resynchronization therapy (CRT) benefits patients with left ventricular
systolic dysfunction and a wide QRS complex. Most of these patients are candidates for an …

… Author links open overlay panel David H. Birnie MD (Chair) 1 , William H. Sauer MD,
FHRS, CCDS (Chair) 2 , Frank Bogun MD 3 , Joshua M. Cooper MD, FHRS 4 , Daniel A. …

Myocarditis is an inflammatory disease of the heart that may occur because of infections,
immune system activation, or exposure to drugs. The diagnosis of myocarditis has changed due …

Background Subclinical atrial fibrillation is short-lasting and asymptomatic and can usually
be detected only by long-term continuous monitoring with pacemakers or defibrillators. …

Background Many patients requiring pacemaker or implantable cardioverter–defibrillator (ICD)
surgery are taking warfarin. For patients at high risk for thromboembolic events, …

Clinically manifest cardiac involvement occurs in perhaps 5% of patients with sarcoidosis.
The 3 principal manifestations of cardiac sarcoidosis (CS) are conduction abnormalities, …

Background— Cardiac arrest without evident cardiac disease may be caused by subclinical
genetic conditions. Provocative testing to unmask a phenotype is often necessary to detect …

… Birnie, University of Ottawa Heart Institute, 40 Ruskin Road, Ottawa, ON, K1Y 4W7, Canada
Tel: +1 613 761 4914; fax: +1 613 761 4407; e-mail: [email protected] … David Kass [39] …

Background Sarcoidosis is a systemic disease characterized by significant clinical heterogeneity.
Although most frequently involving the lungs, sarcoidosis may affect any organ. The …

Reports from case series have estimated the incidence of peripartum cardiomyopathy (PC)
at 1 case/1,485 live births to 1 case/15,000 live births and probable mortality rates of 7% to 60…