Bradycardia is having a heart rate of <60 beats/minute that may not affect the hemodynamic status of some patients.
A heart rate that is
inadequate for the patient's current condition and may not be able to
support life is a clinically significant bradycardia.
Bradycardia can be caused by problems in the sinoatrial node, problems in the conduction pathways of the heart, metabolic problems or heart attack/disease that caused damage to the heart.
The different types of bradycardia are sinus bradycardia, sick sinus syndrome, tachycardia-bradycardia syndrome, hypersensitive carotid sinus syndrome, sinus pause/arrest, sinoatrial node exit block and atrioventricular block.
Tolvaptan improves dyspnoea, increases sodium levels and reduces body weight in patients with acute heart failure (HF) with or without hyponatraemia, but no significant effect is seen in mortality or rehospitalization, according to a recent meta-analysis.
Transcatheter aortic valve replacement (TAVR) in patients with bicuspid aortic stenosis who are at low surgical risk appears to be safe with low rates of death or disabling stroke at 30 days, according to a study presented at the ACC.20/WCC Virtual Meeting.