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Living Donor Liver Transplantation

… a surgery that removes a diseased or malfunctioning liver and replaces it with a portion of a healthy liver from a … to regenerate, the partial livers of both the donor and recipient soon grow into complete organs. Key Facts … from living donors. Living donors must meet various mental and physical requirements and have a blood type compatible …

Last Modified: 01/26/2026 - 11:35

Primary Sclerosing Cholangitis

… result in further damage, such as cirrhosis, liver cancer, and liver failure. Key Facts The causes of primary sclerosing … can slow the progression of the disease, relieve symptoms, and prevent complications. Causes The causes of primary … cholangitis: Age : People between the ages of 30 and 50 are most likely to develop this condition. Gender : …

Last Modified: 01/12/2026 - 11:41

Global Surgery

… care delivery in differently resourced environments and in the context of different cultures and lived experiences is a highly valuable component of … exchange of cultural beliefs, medical knowledge, and technical skill with the trainees and faculty at our …

Last Modified: 10/23/2023 - 14:43

Polyps

… its outer appearance alone. Therefore polyps are removed and analyzed microscopically. Removal of colon polyps is an … treatment options. Treatment for Polyps in the Colon and Rectum Tiny polyps may be completely destroyed by biopsy. … in which a wire loop is passed through the colonoscope and the polyps are cut from the intestinal wall by means of a …

Last Modified: 01/26/2026 - 12:15

Swallowing Disorders/Dysphagia

… cause the tightening or thickening of skin, blood vessels and damage to internal organs and can damage and decrease the muscle layers in the esophagus, inhibiting …

Last Modified: 11/05/2025 - 17:07

An Overview of the Cardiac Transplantation Evaluation Process

… You will have many tests, including blood and skin tests, X-rays, dental examination, and perhaps even cardiac catheterization. Some testing may be conducted locally and results faxed to the transplant office for review; this …

Last Modified: 01/15/2026 - 15:37

Approaches to Colorectal Surgery

… is the most frequently used type of colorectal surgery, and it is minimally invasive Some procedures are now done … , a fiber-optic telescope, is inserted through one port and attached to a camera. It sends images from the abdominal … instruments are used to perform fine dissection, cutting, and suturing. The benefits of laparoscopy include: less …

Last Modified: 03/05/2026 - 13:08

Transplant Waiting List

… time has been described by many transplant recipients and their families as the most difficult part of the transplant process. Fear and anxiety are normal reactions during this period of uncertainty. Because this can be a frustrating and difficult time, we urge candidates and their families to …

Last Modified: 01/15/2026 - 15:45

Vanessa Marra, RN, BSN, CWOCN, CMSRN

… Vanessa is a certified Wound, Ostomy and Continence Nurse. She possesses unique and evidence based knowledge to help in the prevention and maintenance of patients with complex wounds, ostomies and …

Last Modified: 02/19/2023 - 13:11

John M Poneros, MD

… a Professor at Columbia University’s College of Physicians and Surgeons and the Program Director of the Advanced Endoscopy … serves as the Associate Director of the Endoscopy Unit and is a Fellow of the American Society of Gastrointestinal …

Last Modified: 08/12/2026 - 11:32

Michael Argenziano, MD

… is Associate Chief of the Division of Cardiac, Thoracic, and Vascular Surgery at NewYork-Presbyterian/Columbia … as the director of the Minimally Invasive Cardiac Surgery and Surgical Arrhythmia programs, director of the Cardiothoracic Surgery Research Laboratory and Clinical Research Program, and program director of the …

Last Modified: 07/30/2026 - 11:24

When to Revise a Weight Loss Surgery

… called revision surgery, to help them lose again and treat specific symptoms. There are many different … done because the patient's anatomy has changed over time and needs repair. "Patients also come to us for help because … Abraham Krikhely , of the Columbia Center for Metabolic and Weight Loss. "Others have had gastric band procedures and …

Last Modified: 06/24/2024 - 14:58

Pulmonary Vein Stenosis (PVS)

… of Surgery at Columbia, evaluates current management and outcomes for PVS at several large medical centers treating adult congenital heart disease in Europe and North America. A promising approach to PVS repair, … decades ago but long-term outcomes are still not optimal and prognosis still seems to depend on the initial severity …

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

Lyall A. Gorenstein, MD

… of Surgery at the Columbia University Medical Center, and a leader in the clinical management of lung cancer, … cancer, benign esophageal disorders, hyperhidrosis and pectus excavatum. Dr. Gorenstein received his MD degree … at the University of Toronto Medical School, in 1983, and did his general surgery residency at the University of …

Last Modified: 08/17/2026 - 10:34

State of the Union: Breast Care in 2024

… to 10 days. We also use ice a lot, even aromatherapy. And we're putting all these things together so that we can … developed here that we try to put patients on routinely, and it’s been really helpful in reducing our use of them. Can … as possible so we will give you other methods for relief and pain control. With this approach, we're trying to figure …

Last Modified: 08/07/2026 - 10:50