Hearts

Non-Cardiac Surgery in Patients with LVADs Left ventricular assist devices (LVADs), particularly the HeartMate 3, are increasingly encountered in non-cardiac surgical settings. These patients require a solid understanding of device physiology and thoughtful intraoperative management. Quick Reference: Intraoperative LVAD Management Monitoring Perioperative Support Key LVAD Responses Suction (“Suck-Down”) Event Management: LVAD Physiology: Core Concepts LVADs […]

Aortic Stenosis (AS): aortic valve narrows, restricting blood flow from the heart’s left ventricle. Presents with “SAD” symptoms. Syncope, Angina, Dyspnea. Causes: Key Concept: Pressure overload → concentric LV hypertrophy Decreased LV compliance → diastolic dysfunction Dependence on atrial kick for ventricular filling Increased myocardial oxygen demand + reduced supply Remember the Law of LaPlace: