Hueylan Chern, MD

Professor of Clinical Surgery
+1 415 885-3621

Dr. Chern is an Associate Professor in the Department of Surgery at UCSF.  She is a colorectal surgeon with clinical expertise in management of malignant colorectal conditions.  She has expertise in endorectal ultrasound, transanal endocscopic microsurgery and sphincter preserving operations. Her research interests include endorectal ultrasound, colorectal cancer, and surgical education.  She is a member of the Association for Surgical Education Global Surgery Task Force and has specific interests in using innovative technology and curriculum for technical skill acquisition in low-resource settings.


Transforming Surgical Education through a Resident Robotic Curriculum.

Courtney A. Green, Hueylan Chern, Stanley J. Rogers, Linda M. Reilly, Patricia O’Sullivan

Vitamin D Levels in Patients with Colorectal Cancer Before and After Treatment Initiation.

Journal of gastrointestinal cancer

Savoie MB, Paciorek A, Zhang L, Van Blarigan EL, Sommovilla N, Abrams D, Atreya CE, Bergsland EK, Chern H, Kelley RK, Ko A, Laffan A, Sarin A, Varma MG, Venook AP, Van Loon K

Teaching in the robotic environment: Use of alternative approaches to guide operative instruction.

American journal of surgery

Green CA, Chu SN, Huang E, Chern H, O'Sullivan P

Is Robotic Surgery Highlighting Critical Gaps in Resident Training?

Journal of graduate medical education

Green CA, Abrahamson D, Chern H, O'Sullivan PS

Using Technological Advances to Improve Surgery Curriculum: Experience With a Mobile Application.

Journal of surgical education

Green CA, Kim EH, O'Sullivan PS, Chern H

Technical skill improvement with surgical preparatory courses: What advantages are reflected in residency?

American journal of surgery

Green CA, Huang E, Zhao NW, O'Sullivan PS, Kim E, Chern H

A Microanalysis of Intracorporeal Video from a Robotic Surgery: Investigation into a Surgeon's Professional Vision.

Journal of the American College of Surgeons

Courtney A. Green, Hueylan Chern, Ankit Sarin, Patricia O'Sullivan

Evidence Supporting Use of a Novel Descriptive Tool for Intraoperative Feedback.

Journal of the American College of Surgeons

Emily S. Huang, Hueylan Chern, Patricia O'Sullivan

Role of Video Documentation and Video Portfolios for Surgical Trainees.

Journal of the American College of Surgeons

Courtney A. Green, Patricia O’Sullivan, Edward Kim, Hueylan Chern

Vitamin D levels among patients with colorectal cancer (CRC) from the San Francisco Bay area.

Journal of Clinical Oncology

Marissa Barbara Savoie, Alan T Paciorek, Li Zhang, Nili Sommovilla, Chloe Evelyn Atreya, Hueylan Chern, Robin Kate Kelley, Andrew H. Ko, Ankit Sarin, Madhulika G. Varma, Donald I. Abrams, Alan P. Venook, Katherine Van Loon

Evaluation of a Surgery-Based Adjunct Course for Senior Medical Students Entering Surgical Residencies.

Journal of surgical education

Green CA, Vaughn CJ, Wyles SM, O'Sullivan PS, Kim EH, Chern H

Peer video review and feedback improve performance in basic surgical skills.

American journal of surgery

Vaughn CJ, Kim E, O'Sullivan P, Huang E, Lin MY, Wyles S, Palmer BJ, Pierce JL, Chern H

From novice to master surgeon: improving feedback with a descriptive approach to intraoperative assessment.

American journal of surgery

Huang E, Wyles SM, Chern H, Kim E, O'Sullivan P

Martius flap.

Operative Surgery of the Colon, Rectum and Anus, Sixth Edition

P O'Connell, Robert Madoff, Michael Solomon, Hueylan Chern, Madhulika Varma

An objective assessment tool for basic surgical knot-tying skills.

Journal of surgical education

Huang E, Vaughn CJ, Chern H, O'Sullivan P, Kim E

Perineal flap reconstruction following oncologic anorectal extirpation: an outcomes assessment.

Plastic and reconstructive surgery

Wang ED, Conkling N, Xu X, Chern H, Finlayson E, Varma MG, Hansen SL, Foster RD, Hoffman WY, Sbitany H

Perineal Reconstruction Following Anorectal Tumor Resection.

Plastic & Reconstructive Surgery

Eric D. Wang, Nicole Conkling, Xiaoti Xu, Hueylan Chern, Emily Finlayson, Madhulika G. Varma, Scott L. Hansen, Robert D. Foster, William Y. Hoffman, Hani Sbitany

A better way to teach knot tying: a randomized controlled trial comparing the kinesthetic and traditional methods.

American journal of surgery

Huang E, Chern H, O'Sullivan P, Cook B, McDonald E, Palmer B, Liu T, Kim E

Home Video Curriculum for Basic Surgical Skills.


Hueylan Chern, Leslie Sheu, Patricia O'Sullivan, Edward Kim

PIGS (Porcine Integrated General Surgery Simulation) Curriculum.


Hueylan Chern, Edward Kim, Patricia O'Sullivan

How To Teach Knot Tying: A Kinesthetic Approach.


Edward Kim, Hueylan Chern, Emily Huang, Barnard Palmer

Leukocyte-depleted blood transfusion is associated with decreased survival in resected early-stage lung cancer.

The Journal of thoracic and cardiovascular surgery

Ng T, Ryder BA, Chern H, Sellke FW, Machan JT, Harrington DT, Cioffi WG

Rectovaginal and Rectourethral Fistulas.

Seminars in Colon and Rectal Surgery

Hueylan Chern, Madhulika G. Varma


Journal of the American College of Surgeons

Hueylan Chern, Joanne Chou, C. Donkor, Jinru Shia, José G. Guillem, Garrett M. Nash, Philip B. Paty, Larissa K. Temple, W. Douglas Wong, Martin R. Weiser

Clinical Staging: Endoscopic Techniques.

Rectal Cancer

Hueylan Chern, W. Douglas Wong

Cost-effectiveness of postremission intensive therapy in patients with acute leukemia.

Annals of oncology : official journal of the European Society for Medical Oncology

Yu YB, Gau JP, You JY, Chern HH, Chau WK, Tzeng CH, Ho CH, Hsu HC

Genetic polymorphisms of N-acetyltransferase 1 and 2 and risk of cigarette smoking-related bladder cancer.

British journal of cancer

Hsieh FI, Pu YS, Chern HD, Hsu LI, Chiou HY, Chen CJ

Plasma carotenoids, glutathione S-transferase M1 and T1 genetic polymorphisms, and risk of hepatocellular carcinoma: independent and interactive effects.

American journal of epidemiology

Yu MW, Chiu YH, Chiang YC, Chen CH, Lee TH, Santella RM, Chern HD, Liaw YF, Chen CJ