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Clifford Y. Ko

University of California, Los Angeles · US
Area of research
Oncology · Cardiology and Cardiovascular Medicine
Research interest
Research interests include Cardiac, Anesthesia and Surgical Outcomes, Colorectal Cancer Surgical Treatments, Pancreatic and Hepatic Oncology Research, and Enhanced Recovery After Surgery.
h-index
115
citations
49,736
works
733
NIH funding
primary concept
email

Recent publications

Longitudinal Trends in Efficiency and Complexity of Surgical Procedures: Analysis of 1.7 Million Operations Between 2019 and 2023
Journal of the American College of Surgeons 2025cited by 4position: middledoi
Five principles to prioritise in small-scale surgical quality improvement: a qualitative study of the views of surgical improvement leaders.
2025cited by 1position: contributordoi
Piperacillin-Tazobactam Compared With Cefoxitin as Antimicrobial Prophylaxis for Pancreatoduodenectomy
JAMA 2023cited by 119position: lastdoi
Consensus recommendations on how to assess the quality of surgical interventions
Nature Medicine 2023cited by 89position: middledoi
American College of Surgeons NSQIP Risk Calculator Accuracy Using a Machine Learning Algorithm Compared with Regression
Journal of the American College of Surgeons 2023cited by 66position: middledoi
Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program
Surgery for Obesity and Related Diseases 2023cited by 35position: lastdoi
Association Between Biliary Pathogens, Surgical Site Infection, and Pancreatic Fistula
Annals of Surgery 2023cited by 33position: middledoi
Multisite Implementation of an American College of Surgeons Geriatric Surgery Quality Improvement Initiative
Journal of the American College of Surgeons 2023cited by 23position: middledoi
The past, present and future of ACS NSQIP-Pediatric: Evolution from a quality registry to a comparative quality performance platform
Seminars in Pediatric Surgery 2023cited by 19position: middledoi
Surgical complications after living and deceased donor liver transplant: The NSQIP transplant experience
Clinical Transplantation 2022cited by 20position: middledoi
Perioperative Pain Management Issues Unique to Older Adults Undergoing Surgery
Annals of Surgery Open 2021cited by 44position: middledoi
The Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program bariatric surgical risk/benefit calculator: 30-day risk
Surgery for Obesity and Related Diseases 2021cited by 35position: lastdoi
Evaluation of Postoperative Functional Health Status Decline Among Older Adults
JAMA Surgery 2020cited by 104position: middledoi
Post Hepatectomy Liver Failure Risk Calculator for Preoperative and Early Postoperative Period Following Major Hepatectomy
Annals of Surgical Oncology 2020cited by 36position: middledoi
Disparities in Surgical Access: A Systematic Literature Review, Conceptual Model, and Evidence Map
Journal of the American College of Surgeons 2019cited by 167position: middledoi
Enhancing the American College of Surgeons NSQIP Surgical Risk Calculator to Predict Geriatric Outcomes
Journal of the American College of Surgeons 2019cited by 100position: lastdoi
Does Implementation of Enhanced Recovery after Surgery (ERAS) Protocols in Colorectal Surgery Improve Patient Outcomes?
Clinics in Colon and Rectal Surgery 2019cited by 93position: middledoi
Barriers to and Facilitators of Implementing Enhanced Recovery Pathways Using an Implementation Framework
JAMA Surgery 2018cited by 147position: middledoi
American College of Surgeons’ Guidelines for the Perioperative Management of Antithrombotic Medication
Journal of the American College of Surgeons 2018cited by 144position: middledoi
Evidence Review Conducted for the Agency for Healthcare Research and Quality Safety Program for Improving Surgical Care and Recovery: Focus on Anesthesiology for Colorectal Surgery
Anesthesia & Analgesia 2018cited by 108position: middledoi
Defining the Intrinsic Cardiac Risks of Operations to Improve Preoperative Cardiac Risk Assessments
Anesthesiology 2018cited by 45position: middledoi
Application of the <scp>RAND</scp>‐<scp>UCLA</scp> Appropriateness Methodology to a Large Multidisciplinary Stakeholder Group Evaluating the Validity and Feasibility of Patient‐Centered Standards in Geriatric Surgery
Health Services Research 2018cited by 34position: middledoi
Surgical technical evidence review for gynecologic surgery conducted for the Agency for Healthcare Research and Quality Safety Program for Improving Surgical Care and Recovery
American Journal of Obstetrics and Gynecology 2018cited by 25position: middledoi
Effect of Diagnosis on Outcomes in the Setting of Enhanced Recovery Protocols
Diseases of the Colon & Rectum 2018cited by 23position: middledoi
An Examination of American College of Surgeons NSQIP Surgical Risk Calculator Accuracy
Journal of the American College of Surgeons 2017cited by 168position: middledoi
Postoperative Delirium as a Target for Surgical Quality Improvement
Annals of Surgery 2017cited by 115position: middledoi
Hospital Standards to Promote Optimal Surgical Care of the Older Adult
Annals of Surgery 2017cited by 107position: middledoi
Adherence to Enhanced Recovery Protocols in NSQIP and Association With Colectomy Outcomes
Annals of Surgery 2017cited by 85position: middledoi
Executive Summary of the American College of Surgeons/Surgical Infection Society Surgical Site Infection Guidelines—2016 Update
Surgical Infections 2017cited by 82position: middledoi
Optimizing Surgical Quality Datasets to Care for Older Adults: Lessons from the American College of Surgeons NSQIP Geriatric Surgery Pilot
Journal of the American College of Surgeons 2017cited by 68position: middledoi

Grants

No grants ingested yet.

Frequent collaborators

Mark E. Cohen · American College of Surgeons31 papers (2012–2023)Bruce L. Hall · UC Davis Health29 papers (2012–2023)Karl Y. Bilimoria · Regenstrief Institute20 papers (2012–2020)Marcia M. Russell · University of California, Los Angeles16 papers (2014–2023)Yaoming Liu · American College of Surgeons12 papers (2013–2023)Ronnie A. Rosenthal · Loyola University Medical Center11 papers (2012–2023)Julia R. Berian · University of Wisconsin–Madison11 papers (2016–2019)Melinda Maggard‐Gibbons · Olive View-UCLA Medical Center10 papers (2012–2019)Ryan P. Merkow · Chicago Department of Public Health9 papers (2012–2020)Elise H. Lawson · University of Wisconsin–Madison9 papers (2012–2015) · 8 papers (2013–2023)Kristen A. Ban · Loyola University Chicago8 papers (2016–2019)David B. Hoyt · University of California, Irvine8 papers (2014–2020)Greg D. Sacks · NYU Langone Health7 papers (2014–2016)Aaron J. Dawes · Palo Alto University7 papers (2014–2016)David S. Zingmond · University of California, Los Angeles7 papers (2012–2015)Thomas N. Robinson · The Medical Center of Aurora7 papers (2016–2023)Jason B. Liu · Brigham and Women's Hospital7 papers (2017–2018)Melissa A. Hornor · Medical College of Wisconsin6 papers (2017–2023)Lynn Zhou · The Ohio State University Wexner Medical Center6 papers (2013–2019)