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First Fully Laparoscopic Adult-to-Adult Liver Donation Saves Daughter's Life

… year before, she received a portion of her father's liver in what would be a groundbreaking procedure: Benjamin … approach. Details of the surgery were published in the  American Journal of Transplantation  in September 2013 along with two similar cases in Europe. …

Last Modified: 02/19/2023 - 13:09

Xiaojuan (Jan) Chen, MD, PhD

… from Jinan University Medical College, China, M.S. degree in Biology from Marquette University, and Ph.D degree in Molecular and Cellular Physiology from University of … John’s Hopkins University. She joined Columbia University in 2012 after spending 15 years at Northwestern University …

Last Modified: 07/22/2025 - 16:12

James A. Lee, MD

… recognized endocrine surgeon who specializes in the care of patients with thyroid, parathyroid, and … Center. He has been rated as one of the Best Doctors in America and is one of the highest volume endocrine surgeons in the country. Dr. Lee received his medical degree from …

Last Modified: 03/05/2026 - 09:35

Isaac George, MD

… Columbia University Medical Center/NewYork-Presbyterian in 2001 as a resident in general surgery after graduating from Duke University School of Medicine. He received a B.S. in Mechanical Engineering from the Massachusetts Institute of …

Last Modified: 03/05/2026 - 09:35

Innovations and Outcomes (CIOR) Presentations and Research

… the publications below may require subscriptions or a log-in through the Columbia library while PubMed links are … J, Crivera C. The value of sPESI for risk stratification in patients with pulmonary embolism. International Society … and costs of patients diagnosed with multiple myeloma in the US Medicare population. Pandya S, Cao Y, Wang L, Baser …

Last Modified: 05/09/2024 - 12:32

Clinical Training: PGY3

… the senior or acting as the senior resident on a service. In the OR, PGY3s assist with advanced vascular, thoracic, … will split multiple clinic and colonoscopy days per week in addition to operative cases. Weekly tumor board is an … Surgery The PGY3 leads a team of interns, in coordination with two chief residents, in the …

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

Ruth Leff Siegel Award Winners

… of pancreatic cancer. They consider efforts in pancreatic cancer research, including but not limited to … Leff Siegel Award have a track record of high-quality work in the field, they have also contributed to our understanding of pancreatic cancer in the past year, and will continue to do so in the future. …

Last Modified: 10/18/2024 - 14:39

Jai Radhakrishnan, MD

… with complex kidney disease, with particular expertise in rare and glomerular disorders, including focal segmental … risk assessment, and individualized therapy grounded in evidence and shared decision-making. Dr. Radhakrishnan’s … academic work focuses on advancing care and outcomes in rare kidney diseases through clinical research, …

Last Modified: 03/04/2026 - 08:37

New Support for Liver Transplants: A Healthy Microbiome

… fungi, and viruses live inside the human body.  Some aid in digestion while others promote a healthy immune system.  … three decades, NYP/Columbia researchers have been leaders in the study of these microbes.  Since 2007, our scientists and clinicians have been participating in The Microbiome Project, funded by the National Institutes …

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

Benjamin Samstein, M.D.

… Chief of Liver Transplantation and Hepatobiliary Surgery in the Department of Surgery at NewYork-Presbyterian/Weill … Program at NYP. Dr. Samstein is a renowned pioneer in minimally invasive liver surgery and state-of-the-art … of UNOS from 2014 to 2016. Dr. Samstein is well-published in the field, authoring more than 40 peer-reviewed articles …

Last Modified: 03/04/2026 - 08:37

A Biomimetic Patch Could Soon Change the Way We Do Heart Valve Repairs

… David Kalfa, MD, is a pediatric heart surgeon with a PhD in tissue engineering. As Surgical Director of the Initiative … for Pediatric Cardiac Innovation, his passions align in the thoughtful development of creative solutions to … We spoke to Dr. Kalfa about a recent breakthrough in the Cardiothoracic Research Lab, the first synthetic patch …

Last Modified: 07/07/2025 - 16:08

Why Tracking Cardiac Surgery Outcomes Matters

… years, there's still room for enhancement, particularly in areas like long-term follow-up tracking, interoperability … years, cardiac surgeons have tracked their outcomes data in the Society for Thoracic Surgeons (STS) National Database. … look through, cardiac surgeons have used the information in the STS database to improve workflows, develop protocols …

Last Modified: 03/26/2024 - 10:40

Swallowing Disorders/Dysphagia

… swallowing, also called dysphagia, may indicate a problem in the throat or esophagus. There are many causes of … including the following: Diffuse Esophageal Spasm (DES) In diffuse Esophageal Spasm (DES), abnormal spasms of the … food from reaching the stomach. Nutcracker Esophagus In nutcracker esophagus, muscles of the esophagus contract …

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

TAVR Talk: Understanding the PARTNER 3 Results

… as I have had the unique opportunity to train and practice in both at Columbia University Irving Medical Center.   TAVR … is remarkably quick (patients at CUIMC leave the hospital in 1-2 days), have a lower stroke rate than with surgery, and … at doing alternative access TAVR when the arteries in the leg are not suitable - we can use arteries in the …

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

Bariatric Surgery for Adolescents

… This article was originally published in 2017 In the spotlight this month: new data on the damaging … obesity.  A recent study from England shows that obesity in teens is a predictor of cardiovascular problems and …

Last Modified: 05/06/2024 - 14:25

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