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Surgery​

The purpose of the General and Vascular Surgery specialty research group is to organize research-oriented surgeons in order to stimulate collaboration and evidence based improvements in the field. Some topic areas of interest include: improving melanoma outcomes, examining outcomes for complicated diverticulitis, examining Colon ERAS data, and laparoscopic cholecystectomy management retrospective analysis. 

Physicians Involved in Research


Ongoing and Completed Surgery Projects, All Funding Mechanisms

A randomized, double-blind noninferiority trial of adductor canal catheters for postoperative pain management among patients undergoing elective unilateral total knee arthroplasty.
Adrian Hinman, Andy Avins. Surgery Orthopedic. DSRP. Ongoing.

An Evaluation of the KPNC Abdominal Aortic Aneurysm Screening Program 1275277-12].
Andrew Avins, Robert Chang  . Surgery Vascular. CESR. Ongoing.

BEST-CLI.
Robert Chang, Osvaldo Yano, Hong Hua, Aaron Baker, Jeffry Cardneau Michael Peterson, Joy Garg, Kian Mostafavi, Tazo Inui Owen Palmer, Rishad Faruqi, Nayan Sivamurthy, Abed Joseph ". Surgery Vascular. NIH. Ongoing.

Carotid Revasuscularization trial (CREST-2).
Robert Chang, Mai Nguyen-Huynh. Surgery Vascular. NIH. Ongoing.

Comparison of Repair vs. Meniscectomy for Bucker Handle Meniscal Tears.
David Ding. Surgery. CB. Ongoing.

Current outcomes & management of asymptomatic carotid stenosis.
Bobby Chang, Mai Nguyen-Huynh. Surgery Vascular. PRP. Ongoing.

Disparities in Speech Therapy for Voice Disorders in English versus Non-English-Speaking Patients.
Nancy Jiang . Surgery Head and Neck. CB. Ongoing.

Impact of Metformin use on Benign Prostate Hyperplasia.
Robert Chang, Osvaldo Yano, Hong Hua, Aaron Baker, Jeffry Cardneau, Michael Peterson, Joy Garg, Kian Mostafavi, Tazo Inui, Owen Palmer, Rishad Faruqi, Nayan Sivamurthy, Abed Joseph, Matt Solomon. Surgery Vascular. Other. Ongoing.

Implementation of Evidence-Based Surgery for Pediatric Hernia Repair.
Albert Chong, Lisa Herrinton. Surgery Pediatrics. RAU. Ongoing.

Implementation of Post-Mastectomy Home Recovery Program in a Large, Integrated Health Delivery System.
Brooke Vuong, Julie Schmittdiel. Surgery. RAU. Ongoing.

Long term Follow up of endovascular aortic aneurysm repair in the Kaiser Permanente Northern California region 2000-2009.
Robert Chang. Surgery Vascular. CB. Ongoing.

Minimally invasive esophagectomy.
Simon Ashiku, Andy Avins. Surgery. RAU. Ongoing.

Natural history assessment of abdominal aortic aneurysms under surveillance in KPNC [1283137-3].
Robert Chang. Surgery Vascular. Not funded (support from CESR). Ongoing.

Predictors of Therapeutic Benefits, Surgical Outcomes, and Complications of Endovascular Stent Grafts for Repair of Abdominal Aortic Aneurysm INTERREGIONAL.
Robert Chang. Surgery Vascular. Not funded (support from Implant registry). Ongoing.

Risk factors for hip arthroscopy failure.
Adrian Hinman, Andy Avins. Surgery Orthopedic. RAU. Ongoing.

The Adult Neck Mass: Predictors of Malignancy.
Kevin Wang . Surgery Head and Neck. CB. Ongoing.

A Natural History of Descending Thoracic Aortic Dissections in Northern California Kaiser Permanente: An analysis of incidence, interventions and outcomes during longitudinal follow-up..
Aaron Baker. Surgery Vascular. CB. Completed.

Aspirin Exacerbated Respiratory Disease:  Challenges in Diagnosis and Treatment.
Jonathan Liang . Surgery Head and Neck. CB. Completed.

Breast reconstruction surgery: comparison of three techniques.
Dan Jacobs, Lisa Herrinton. Surgery. RAU. Completed.

Clinical and Demographic Characteristics of Adults Undergoing Surgery for Obstructive Sleep Apnea: Identification of Potential Barriers to Access to Care.
Megan Durr . Surgery Head and Neck. CB. Completed.

Does Previous Knee Arthroscopy Affect the Outcomes of Total Knee Replacement?.
Ronald Wyatt . Surgery Orthopedic. CB. Completed.

Effect of Consolidating Thoracic Surgery Care within an Integrated Healthcare System on Outcomes for Lung Cancer Patients Undergoing Pulmonary Lobectomy.
Thomas Tung. Surgery Thoracic. CB. Completed.

Factors Predicting Failure of Radial Head Arthroplasty.
Mark Dillon . Surgery Orthopedic. CB. Completed.

Impact of thoracic regionalization on outcomes for esophageal cancer patients undergoing esophagectomy.
Jeffrey Velotta. Surgery Thoracic. Other. Completed.

Management of Anterior Cruciate Ligament Injuries and Risk of Subsequent Surgical Interventions.
David Ding . Surgery Orthopedic. CB. Completed.

Outcomes of laparoscopic pediatric hernia repair compared with the open approach.
Albert Chong, Lisa Herrinton. Surgery Pediatrics. RAU. Completed.

Surgical resection of hepatic metastasis in patients with colorectal cancer.
CK Chang, Andy Avins. Surgery. RAU. Completed.

Validation Study of Kids Hearing Game - a Self-Administered Pediatric Audiometry Application.
Brian Kung  . Surgery Head and Neck. CB. Completed.