Cardiologist Sanjiv M Narayan, MD, PhD, Co-founder of the Stanford Arrhythmia Center, and former director of electrophysiology at Veteran Affairs Medical Center at the University of California San Diego. Sanjiv Narayan has trained several generation of physicians in providing effective therapy for atrial fibrillation.
Also known as AFib or AF, atrial fibrillation can result in heart failure, blood clots, stroke, and other complications. Under normal conditions, the human heart contracts and relaxes at a regular pace. In a person with atrial fibrillation, the upper chambers of the heart quiver or beat irregularly instead of maintaining their regular beat, due to a rapid electric signal. This hampers the movement of blood into the lower chambers, resulting in blood clots.
While some atrial fibrillation patients have symptoms including nausea, light-headedness, shortness of breath, fatigue, chest pain, and rapid heartbeat (tachycardia), others may display no symptoms. Atrial fibrillation, if left untreated, increases the risk of stroke and of death due to heart-related issues.
Sanjiv Narayan (Abbott) 