Related by context. Frequent words. (Click for all words.) 71 arrhythmia 71 arrhythmias 67 sudden cardiac arrest 65 sudden cardiac death 63 cardiac arrhythmia 63 atrial fibrillation 62 cardiac arrest 62 irregular heartbeats 61 syncope 61 defibrillation 60 Atrial fibrillation 59 atrial fibrillation AF 58 hypotension 57 infarction 56 apnea 56 myocardial infarction 56 cardiac 56 acute myocardial infarction 55 hypoglycemia 55 heart arrhythmia 54 irregular heartbeat 54 ischemic stroke 54 cardiac resynchronization therapy 54 ejection fraction 53 angina 53 revascularization 53 obstructive sleep apnea 53 unstable angina 53 ischemic 53 ventricles 53 defibrillator 53 STEMI 52 intubated 52 excited delirium 52 coronary artery disease 52 electrical impulses 52 acute coronary syndrome 51 neonates 51 reperfusion 51 pulmonary edema 51 pulmonary hypertension 51 cardiac arrhythmias 51 sepsis 51 hypertrophy 51 transient ischemic attack 51 septic shock 51 ICDs 50 beta blockers 50 ischemia 50 severe sepsis 50 epinephrine 50 palpitations 50 atria 50 hemodynamic 49 oxygen saturation 49 hypertrophic cardiomyopathy 49 atrial 49 coronary disease 49 left ventricle 49 ventricular 49 CABG surgery 49 respiratory distress 49 embolism 49 thrombosis 49 acute coronary syndromes 49 intubation 49 hyperglycemia 48 chest compressions 48 hypoxia 48 clots 48 ARDS 48 myocardial 48 mechanical ventilation 48 preeclampsia 48 Defibrillators 48 acute renal failure 48 pre eclampsia 48 respiration 48 anaphylactic shock 48 clot 48 cardiomyopathy 48 ventricle 48 idiopathic 48 coronary 48 anticoagulation 48 oxygenation 47 lung function 47 heartbeat 47 electrocardiogram 47 exacerbations 47 preterm infants 47 pulmonary embolism 47 blocked arteries 47 troponin 47 hypoglycaemia 47 anaphylaxis 47 coronary artery 47 heartbeats 47 Sleep apnea 47 abnormalities 47 hemorrhagic stroke