
Key Researcher
Derek Lumbard, MD, is a surgeon-scientist specializing in trauma, critical care, and acute care surgery.
Dr. Lumbard is currently an Adjunct Assistant Professor at UT Health San Antonio and recently became a White Paper Scholar with Hennepin Healthcare Research Institute (HHRI). He completed medical school at the Medical College of Wisconsin. After finishing his general surgery residency at Hennepin County Medical Center, he completed a Surgical Critical Care fellowship at UT Health San Antonio.

Key Researcher
Rachel Nygaard, PhD, joined the Department of Surgery as Research Director and Associate Program Director of the General Surgery Residency at Hennepin County Medical Center in 2012.
She completed her Ph.D. in Microbiology, Immunology, and Cancer Biology at the University of Minnesota Medical School. Her focus was the pathogenesis of viral respiratory infections. Prior to her graduate education, she was a high school science teacher; this symbiosis merges her love for research and education in her departmental role. She built the research program in the department to focus on health disparities and traumatic injury.
Trauma & Surgical Critical Care
PubMed
https://www.ncbi.nlm.nih.gov/myncbi/derek.lumbard.1/bibliography/public/
Presentations
- Lumbard DC, Nygaard RM, Richardson CJ, Liao LF, Stewart RM, Eastridge BJ, Nicholson SN. Burden of unintentional pediatric firearm injury: an examination of the Nationwide Readmission Database. PTS Nov 2022.
- Lumbard DC, Richardson CJ, Endorf FW, Nygaard RM. Firearm injury is only the beginning: the impact of socioeconomic factors on unplanned readmission after injury. AAST Sept 2022
- Lumbard D, Nygaard RM, Richardson CJ, Liao L, Stewart R, Eastridge B, Nicholson S. Beyond surviving initial firearm injury: unplanned readmission after pediatric unintentional firearm injury. Bradley J Aust Society 2022.
- Lumbard D, Brigmon E, Chakales S, Brigmon M, Nicholson S. A Fungus Among Us. Bradley J Aust Society 2022.
- Lumbard D.C, Nygaard RM, Richardson CJ, Nicholson SE. Burden of unintentional pediatric firearm injury: an examination of the national readmission database. South Texas ACS 2022.
- Lumbard, D.C, Richardson C.J, Endorf F.W, Nygaard, R.M. Readmissions following assault-related firearm injury: An examination of the national readmission database. Region 5 COT Trauma Paper Competition 2021.
- Lumbard D.C, West M, Cich I, Shankar S, Hassan S, Nygaard RM. Pooled analysis of level 1 trauma centers better predicts risk factors for gun violence. Military City USA Trauma Collaborative Research Conference 2021.
Key Researcher:
Dr. Rachel Nygaard, Director of Surgery Research
Violent injury is a leading cause of death among young Americans and survivors of violent injury are at increased risk of reinjury and rehospitalization due to violence. Breaking this cycle of violence is the main goal of hospital-based violence intervention programs (HVIPs). Dr. Nygaard joined the Department of Surgery as Research Director and Associate Program Director of the General Surgery Residency at Hennepin County Medical Center in 2012.
Our American College of Surgeons verified Level I trauma program was the first established in Minnesota and continues to be the premier center for the treatment and management of traumatic injury in the region. She built the research program in the department to focus on health disparities and traumatic injury.
She has been the site Principal Investigator or Co-Investigator on numerous sponsored industries, American Association for the Surgery of Trauma (AAST), and Eastern Association for the Surgery of Trauma (EAST) multicenter trials. She has co-authored more than 80 publications in the areas of trauma, burn, and general surgery – with first and last author publications focused on gun violence. She has a track record working across hospital systems to study outcomes following firearm injury that has resulted in presentations at national and international meetings.
PubMed
https://www.ncbi.nlm.nih.gov/myncbi/1d5DWUT8v-V5o/bibliography/public/
Research Website:
www.HennepinTrauma.org <- domain is registered and the site is being built
Twitter account for the research group:
@HennepinTrauma

Key Researcher
Derek Lumbard, MD, is a surgeon-scientist specializing in trauma, critical care, and acute care surgery.
Dr. Lumbard is currently an Adjunct Assistant Professor at UT Health San Antonio and recently became a White Paper Scholar with Hennepin Healthcare Research Institute (HHRI). He completed medical school at the Medical College of Wisconsin. After finishing his general surgery residency at Hennepin County Medical Center, he completed a Surgical Critical Care fellowship at UT Health San Antonio.