icd word written on wood block. icd text on table, concept

abbreviation abnormal acronym around arrhythmia background block cardiac cardioversion cardioverter classification concept correcting cube death defibrillation defibrillator detect determine device diseases echocardiography equipment fibrillation health icd idea implantable implantation international medicine monitors pacemaker picture problems prophylactic research result science strips sudden tachycardia test text therapy treatment ventricular word