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

Subhendra Banerjee, MD
Fresno Medical Center
Anatole Besman, MD
Vallejo Medical Center
Robert Chang, MD
South San Francisco Medical Center
Nicole Marie Hill, MD
Fresno Medical Center
Maris Jones, MD
Santa Clara Homestead
David Kissinger, MD
South Sacramento Medical Center
Kourosh Kojouri, MD
San Jose Medical Center
Jonathon Redwine, MD
San Jose Medical Center

Ongoing and Completed Surgery Projects, All Funding Mechanisms

ACEs, Resilience, and Mental Health Support in Obstetric Care
Carey Watson | CH | Ongoing

Comparative effectiveness of outcomes associated with video assisted thoracic surgery (VATS) versus robot assisted thoracic surgery (RATS) for lobectomy in KPNC
Jeffery Velotta, Vinnie Liu | TAP | Ongoing

Developing a TPMG Pathway for Selective Oncotype Testing in Early Breast Cancer
Veronica Shim, Laurie Habel | DSGP | Ongoing

HPV self-collection
Betty Suh-Burgmann | PRP | Ongoing

Lymphatic Microsurgical Preventative Healing Approach to Prevent Lymphedema in Patients Undergoing Axillary Lymph Node Dissection for Breast Cancer
Amanda Graff-Baker, Marilyn Kwan | DSGP | Ongoing

Risk Factors for Olfactory Dysfunction in Patients with SARS-CoV2 Infection
Jonathan Liang | CH | Ongoing

Breast reconstruction surgery: comparison of three techniques
Dan Jacobs, Lisa Herrinton | RAU | Not Started

Comparative analysis of regional anesthetic techniques for breast cancer patients undergoing mastectomy surgery
Edward Yap | CH | Completed

Comparison of Repair vs. Meniscectomy for Bucker Handle Meniscal Tears
David Ding | CH | Completed

Genetic and non-genetic factors affecting weight loss variability after bariatric surgery
Hélène Choquet | CH | Completed

How COVID Changed Our Practice: Telehealth in TPMG Surgical Cancer Care
Gillian Kuehner , Mary Reed | RAU | Completed

Implementation and Outcomes Following Regionalization of Adrenal Surgery
Reza Rahbari, Lisa Herrinton | RAU | Completed

Implementation of Evidence-Based Surgery for Pediatric Hernia Repair
Albert Chong, Lisa Herrinton | RAU | Completed

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

Incidence and risk factors for anal cancer among women in a large, integrated health system
Gregory Barnell | CH | Completed

KPNC Women’s Anal Cancer Study: Secular trends and risk factors in a large integrated healthcare system
Gregory Barnell | CH | Completed

Minimally invasive esophagectomy
Simon Ashiku, Andy Avins | RAU | Completed

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

PAN #3: Efficacy and Value
Kourosh Kojouri, Lisa Herrinton | RAU | Completed

Surgical referral and outcomes of standardized ultrasound reporting of adnexal masses
Betty Suh-Burgmann, Lisa Herrinton | PRP | Completed

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

The association between ERAS implementation and changes in post-discharge opioid use
Derrick Lee, Andy Avins | RAU | Completed

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, MD, Robert Chang | Other |

A Prospective, Multicenter Post-Market Study to Evaluate and Compare the Clinical Outcomes, pain and patient Quality of Life after Open, Laparoscopic or Robotic Assisted Hernia (Incisional and Inguinal) Repair
Elliott Brill, MD | Other |

Effect of Consolidating Thoracic Surgery Care within an Integrated Healthcare System on Outcomes for Lung Cancer Patients Undergoing Pulmonary Lobectomy
Thomas Tung, MD | Other |

Impact of thoracic regionalization on outcomes for esophageal cancer patients undergoing esophagectomy
Jeffrey Velotta, MD | Other |

Long term Follow up of endovascular aortic aneurysm repair in the Kaiser Permanente Northern California region 2000-2009
Robert Chang | Other |

Non-opioid analgesia following minimally-invasive bariatric surgery
Pandu Yenumula, MD | Other |

Predictors of survival in stage I non-small cell lung cancer
Richard Bloom, MD | Other |

Selected Surgical Adverse Outcomes (SSAO)
Adam Schlifke, MD | Other |