Dr. Sunil Rayan
Dr. Sunil Rayan has been a practicing vascular surgeon in the San Diego area since 2004. He received his undergraduate degree in Molecular and Cellular Biology at University of California, Berkeley in 1991. He then graduated medical school at Hahnemann/Drexel University in Philadelphia. From 1996-2002. He was fortunate to train in General Surgery at Harvard University’s Beth Israel Deaconess Medical Center in Boston during which time he did a year of research at Harvard’s Center for Minimally Invasive Surgery. He then matched at his top choice nationwide at Emory University… Read More
Veins are responsible for bringing blood back to the heart. Gravity can play a big part in working against the venous return in the legs. When you sit or stand, blood tends to pool in the legs. If the valves in the leg veins aren’t functioning properly, the increased pressure in the veins over time can cause varicose veins. People can get varicose veins from old age, genetics, pregnancy, obesity, prolonged standing or sitting or lack of physical activity
Ischemic stroke and Transient Ischemic Attack (TIA), where the blood supply to a part of your brain is interrupted, is most commonly related to high blood pressure (hypertension), which can damage the small blood vessels in your brain. Abnormal heart rhythms, such as atrial fibrillation, which can cause small blood clots to travel from your heart can also be a cause. Hardening of the arteries (atherosclerosis), a buildup of plaque in the carotid arteries that bring blood to your brain is something we can help with. Plaque can build up over time in arteries as you get older due to long-term effects of illnesses like high blood pressure, high cholesterol levels and diabetes. Pieces of this plaque can break off and travel to your brain which can cause a stroke.
Peripheral Arterial Disease
PAD is a chronic disease in which plaque builds up in the arteries to the legs. This buildup typically occurs gradually. If allowed to progress, blood flow in that artery can become limited or blocked all together. PAD is relatively common, affecting more than 10 million people in the U.S. It is more common in people who are 65 or older, usually in smokers and diabetics.
Deep Vein Thrombosis
DVT is often associated with acute inflammation. DVT can occur after a major operation, after trauma or during a flight. Sometimes they can be related to an underlying cancer. Not infrequently, they can simply be unprovoked. DVTs usually require treatment and occasionally require debulking to restore function to your leg.
An aneurysm is a bulge or ballooning in a blood vessel that occurs in the wall of a major blood vessel. The abdominal aorta carries blood from your heart to your body and is the blood vessel most frequently affected. An aneurysm if allowed to get too large, can leak or rupture, causing catastrophic internal bleeding. The goal of aneurysm therapy is to treat it before it becomes symptomatic or ruptures. Other sites for aneurysms include the thoracic aorta, the iliac arteries and branch vessels off the aorta.
Hemodialysis is a treatment that removes wastes and extra fluid from your blood when your kidneys have failed. Dr. Rayan creates functional hemodialysis access in the arms called an arteriovenous fistula or graft.