[Magnetic resonance imaging in patients with pacemakers and implantable cardioverter-defibrillators: a systematic review]. / Imagerie par résonance magnétique chez les patients porteurs de stimulateurs cardiaques et de défibrillateurs automatiques implantables: revue de la littérature.

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.

[Night cardiac rhythm and conduction disturbances revealing obstructive sleep apnoea syndrome]. / Trouble de conduction atrioventriculaire paroxystique nocturne révélant un syndrome d'apnée du sommeil.

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.

[Acute myocarditis revealing a pheochromocytoma]. / La myocardite aiguë, un mode de révélation peu fréquent du phéochromocytome Revue de la littérature à propos d'une observation.

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.