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Jeffrey A Ascherman, MD

… Ascherman is Site Chief of the Division of Plastic Surgery and a Professor of Surgery at Columbia University Irving … He obtained his B.A. degree from Harvard University, and his M.D. from Columbia University’s Vagelos College of Physicians and Surgeons where he was elected into the Alpha Omega Alpha …

Last Modified: 08/18/2026 - 02:31

Organ Transplant at Columbia

… here to answer your questions, provide you with support, and of course give you access to the best clinical care possible, from the most experienced and accomplished organ transplant doctors and surgeons in the world. At Columbia, you can count on us …

Last Modified: 12/15/2025 - 10:03

Guide to Thyroid Function Tests

… thyroid mass (i.e. how much thyroid tissue there is), and antibodies to thyroid tissue. Tests of thyroid function … pituitary gland makes TSH to stimulate the thyroid to make and release more thyroid hormone. When there is enough or too … the body. Thyroglobulin is only made in the thyroid and almost all thyroid cells will make it, even thyroid …

Last Modified: 09/26/2025 - 13:54

The Four Steps to Your Successful Transplantation

… personal, four-phase program designed to guide you and your family through this challenging time. I - The … Members of Columbia's transplant team conduct a careful and comprehensive evaluation of your physical condition. … including pulmonary function testing (PFT), x-rays and blood tests. Your dental health and bone strength are …

Last Modified: 03/06/2026 - 00:01

Barrett's Esophagus

… chronic, long-lasting gastroesophageal reflux, obesity, and smoking. Diagnosis Barrett’s esophagus is diagnosed with upper GI endoscopy and biopsy. Our endoscopists use the latest technology for … In conjunction with high resolution video endoscopes and electronic magnification, remarkably detailed views of …

Last Modified: 11/05/2025 - 16:50

Peripheral arterial disease (PAD) may be one of the most common health problems you’ve never heard of

… condition, which can result in the arteries to the legs and feet becoming narrowed or blocked, affects one out of … Limb Ischemia Program at the Division of Vascular Surgery and Endovascular Interventions , explains that PAD is … increase in prevalence due to rising rates of obesity and diabetes. If you or a loved one has any of the risk …

Last Modified: 02/23/2023 - 18:00

Premier Center for the Treatment of Diaphragm Disorders

… It’s something we do automatically, between 17,000 and 30,000 times a day. Yet this simple act depends upon the … diaphragm, a dome-like muscle separating the chest cavity and the abdomen. When you breathe, this muscle contracts and moves downward, increasing the space around your lungs, …

Last Modified: 02/23/2023 - 18:01

Your Gift Makes a Difference

… Ways To Help Please help the Department of Surgery enhance and expand its comprehensive patient care, research, and education programs. The Department's many accomplishments … of concerned individuals, foundations, corporations, and other grant-making associations and institutions. …

Last Modified: 05/05/2026 - 12:12

End Stage Renal Disease (Kidney Failure)

… lost. Symptoms include nausea, vomiting, weakness, fatigue and sluggishness, confusion and difficulty concentrating, decreased urine output, anemia, and loss of appetite. It can cause complications such as high …

Last Modified: 03/05/2026 - 14:46

Is Your Standing Desk Causing Varicose Veins? 7 Myths About Irregular Veins

… with sore, achy legs. These are called varicose veins, and left untreated, they can lead to more serious health … too much time on their feet are prone to varicose veins, and those with a family history of vein disease are even more … are frequently agonizing. “Often patients complain of leg and ankle swelling, and a general tiredness and lack of …

Last Modified: 02/03/2026 - 18:41

Mitral Valve Stenosis

… can cause difficulty breathing, feelings of tiredness, and other problems. What Causes Mitral Valve Stenosis? The … mitral valve stenosis. Radiation treatment to the chest and some medications also may cause mitral valve stenosis. … frequent respiratory infections, heavy coughing, and rarely, chest discomfort or chest pain. These symptoms …

Last Modified: 12/16/2025 - 15:27

The Overnight Birth of a Surgical Workforce Access Team, SWAT, in the Time of COVID

… A rigorous period of hands-on training, intense work, and of course constant operations.  Residency is grueling, … clear. It’s go, go, go in a standardized world, structured and sterile. At virtually any other moment in time, years in … this in to your hospital’s plans for #covid pic.twitter.com/ipcm3IVcvi — Colin Pesyna (@cpesyna) March 28, 2020 All …

Last Modified: 11/28/2023 - 18:16

Cognitive Functioning 20 Years After Arterial Switch

… provided the first description of the cognitive and psychosocial outcomes of adults two decades after a … an essential step toward developing prevention strategies and adapted treatments, such as cognitive remediation or … Kalfa, MD, PhD, Assistant Professor of Surgery at Columbia and the primary investigator of this international study.  …

Last Modified: 07/07/2025 - 15:55

What You Need To Know About Colorectal Cancer

… estimated 150,000+ new cases diagnosed annually. Both men and women are at risk of colorectal cancer, making it the … Lifestyle factors such as alcohol use, physical activity, and smoking can influence the risk of developing colorectal … cancer, emphasizing the importance of proactive management and screening. Colorectal cancer is one of the most common …

Last Modified: 04/24/2024 - 14:44

The Third Year Clerkship in Surgery

… an understanding of the role of surgery as a diagnostic and therapeutic intervention, correlating the basic sciences of anatomy, physiology, microbiology, and molecular biology with application to patients with … students have the opportunity to see many of the standard and classic operations including appendectomy (open and …

Last Modified: 05/25/2023 - 11:46

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