Predictors of intraoperative electrosurgery-induced implantable cardioverter defibrillator (ICD) detection.

Background: In the USA, the number of people needing implantable cardioverter defibrillators (ICDs) has grown dramatically. Many ICD recipients will need to undergo a surgical procedure at some point following ICD implantation. Most surgeries involve the use of electrocautery.

Cardiac troponin T in patients with cardiac implantable electronic devices undergoing magnetic resonance imaging.

Purpose: Magnetic resonance imaging (MRI) has been safely performed in many patients with cardiac implantable electronic devices (CIEDs) using institution-specific protocols. A potential risk of MRI is myocardial heating and cardiac injury, which might be detectable with cardiac Troponin (cTn). We evaluated this in patients with CIEDs undergoing MRI.

"Power-on resets" in cardiac implantable electronic devices during magnetic resonance imaging.

Background: Magnetic resonance imaging (MRI) has been safely performed in some patients with cardiac implantable electronic devices (CIEDs) under careful monitoring and prespecified conditions. Pacemaker-dependent patients are often excluded, partly because of the potential for "power-on reset" (PoR), which can lead to a change from asynchronous to inhibited pacing with consequent inhibition of pacing due to electromagnetic interference during MRI.

Objective: The purpose of this study was to review risk factors for PoR during MRI.

Multicenter study of the safety and effects of magnetic resonance imaging in patients with coronary sinus left ventricular pacing leads.

Background: Magnetic resonance imaging (MRI) in patients with left ventricular (LV) leads may cause tissue or lead heating, dislodgment, venous damage, or lead dysfunction.

Objective: The purpose of this study was to determine the safety of MRI in patients with LV pacing leads.

Methods: Prospective data on patients with coronary sinus LV leads undergoing clinically indicated MRI at 3 institutions were collected.

Safety and outcomes of magnetic resonance imaging in patients with abandoned pacemaker and defibrillator leads.

Introduction: Abandoned cardiovascular implantable electronic device (CIED) leads remain a contraindication to magnetic resonance imaging (MRI) studies, largely due to in vitro data showing endocardial heating secondary to the radiofrequency field. We tested the hypothesis that abandoned CIED leads do not pose an increased risk of clinical harm for patients undergoing MRI.

Methods: This single-center retrospective study examined the outcomes of patients who had device generators removed before MRI, rendering the device leads abandoned.

A unique case of relapsing polychondritis presenting with acute pericarditis.

Relapsing polychondritis (RP) is an inflammatory disease of the cartilaginous tissue primarily affecting the cartilaginous structures of the ear, nose, joints, and the respiratory system. Cardiovascular complications of RP are associated with high morbidity and mortality and occur most commonly as valvular disease. Pericarditis is a less common complication, occurring in 4% of patients with RP and has not previously been described at presentation.