Cancer and implantable cardiac defibrillator. Causality, confusion or chance?

Introduction And Objectives: implantable cardiac defibrillator (ICD) has been established as a therapy for malignant ventricular arrhythmias in patients at high risk of suffering them. Some studies suggest a possible relationship between the development of cancer and some prosthetic materials. Likewise, some investigations describe a higher incidence of cancer in patients with an ICD that suggest a potential relationship.