ABSTRACT
The presence of a pacemaker or an implantable cardioverter-defibrillator was historically considered a contraindication to magnetic resonance imaging (MRI), due to the risks for both patient and device: reed-switch closure responsible for asynchronous pacing, inhibition of pacing, rapid ventricular pacing, heating on the lead tip or even device displacement... However, many recent studies demonstrate that if MRI is crucial for the management of the patient, it can be performed under specific monitoring and scanning conditions and after device reprogramming. The growing implication of device constructors in constructing a MRI safety device will perhaps extend in the future the indications of this imaging modality in implanted patients.
Subject(s)
Cardiovascular Diseases/therapy , Defibrillators, Implantable , Magnetic Resonance Imaging , Pacemaker, Artificial , Cardiovascular Diseases/diagnosis , Defibrillators, Implantable/adverse effects , Electromagnetic Fields/adverse effects , Equipment Safety , Evidence-Based Medicine , Humans , Magnetic Resonance Imaging/adverse effects , Pacemaker, Artificial/adverse effects , Patient Selection , Risk Assessment , Risk FactorsABSTRACT
There is a strong prevalence of sleep apnoea syndrome in general population. Cardiac arrhythmia and conduction disturbances during sleep may complicate this syndrome. We report the case of a 73-year-old patient to whom the sleep apnoea syndrome was diagnosed after varied heart blocks during the sleep. A treatment by continuous positive airway pressure (CPAP) permitted to correct these conduction disturbances and to avoid pacemaker implantation.
Subject(s)
Heart Block/complications , Sleep Apnea, Obstructive/complications , Sleep Apnea, Obstructive/diagnosis , Aged , Continuous Positive Airway Pressure , Heart Block/physiopathology , Heart Block/therapy , Humans , Male , Sleep Apnea, Obstructive/therapyABSTRACT
We report a 29-year-old woman with an acute myocarditis documented by MRI as presenting manifestation of a pheochromocytoma, and we review the literature.