A pacemaker with two leads (one in the right atrium, one in the right ventricle) that coordinates atrial and ventricular contractions to restore the natural heartbeat sequence. Preferred over single-chamber pacing for most conditions requiring permanent pacing. Dual-chamber ICDs combine defibrillation with dual-chamber pacing and sensing.
Surgery that can improve blood flow to the heart (or other organs and tissues) by providing a new route, or “bypass” around a section of clogged or diseased artery.
It has been hypothesized that owing to a variety of physiologic variables, such as autoregulation, comorbidities, and cerebral ischemic thresholds, it is possible for patients receiving high-quality cardiopulmonary resuscitation (CPR) to maintain consciousness