Background: Chronotropic incompetence (CI) is often seen in subjects with chronic congestive
heart failure (CHF). The prevalence of CI, its mechanisms and association with beta‐…

Background Recommendations regarding performance of magnetic resonance imaging (MRI)
in non-MRI conditional pacemaker and defibrillator recipients are evolving. Previous …

Background: Racial disparities in implantable cardioverter-defibrillator (ICD) implantation
are multifactorial and are partly explained by higher refusal rates. Objective: To assess the …

Mycobacterial infections resulting from cardiac implantable electronic devices are rare, but as
more devices are implanted, these organisms are increasingly emerging as causes of early…

Spinal cord injury is a clinical syndrome encountered frequently in trauma centers and is
accompanied by both acute and chronic heart rhythm abnormalities. The injury is characterized …

Objectives This study compared risks associated with magnetic resonance imaging (MRI) in
patients with non‐MRI conditional and MRI conditional pacing and defibrillator systems with …

BACKGROUND: Peak oxygen consumption (peak Vo 2 ) is one of the strongest predictors
of mortality in patients with congestive heart failure (CHF). In contrast to measurements of …

Dosing equivalency of carvedilol and metoprolol remains a debate. Degree of β 1 -blockade
is best assessed by blunting of the exercise-induced heart rate. Accordingly, the authors …

Defibrillator lead malfunction can be a disastrous complication, leading to loss of protection
from sudden cardiac death in a high‐risk patient population. Recognition of lead‐specific risk …

Background Following increased rates of inside-out abrasion with the St Jude Medical Riata
lead, the Durata implantable cardiac defibrillator (ICD) lead was introduced with …