Research

Cancer Care Delivery

The Broman Lab’s cancer care delivery research addresses strategies used by health systems and networks to ensure consistent delivery of high-quality, evidence-based cancer care. Our team previously identified that quality of care varies among hospitals in the same health system, and certain systems more reliably provide high-quality care than others. The Broman Lab team is using quantitative and qualitative (interview-based) research methods to develop strategies that health systems can use to improve cancer care quality. This work has benefited from funding by the National Institutes of Health, American Society of Clinical Oncology, American College of Surgeons and philanthropic support.

Recent Publications

Broman K, Richman J, Ross E, Zengul F, Weech-Maldonado R, Bhatia S. Hub and spoke framework for study of surgical centralization in United States health systems. American Journal of Surgery, 2023 Oct; 226(4):524-530. PMID: 37156679.

Dykes EM, Montgomery KB, Kennedy GD, Krontiras H, Broman KK. Quality of breast surgery care at a comprehensive cancer center and its rural affiliate hospital. American Journal of Surgery, 2024 Jan; 227:52-56. Epub 2023 Sep 23. PMID: 37805304.

Amu-Nnadi C, Ross E. Garcia N, Duncan Z, Correya T, Montgomery K, Broman K. Health system integration and cancer center access for rural hospitals. The American Surgeon, 2024 May; 90(5):1023-1029, PMID 38073251.

Broman K, Herbey I, Hollenquest B, Dykes E, Bhatia S, Ivankova N. Patient preferences for cancer surgery in a community cancer affiliate network. SURGERY, 2024 December 26: 109002 (ePub). PMID: 39730266.

Harbaugh C, Broman K. Moving the needle on health system care delivery: from observation to intervention. Annals of Surgery. 2026 Jan 1;283(1):10-12. Epub 2025 Sep 3. PMID: 40899739.

Whalen M, Schroeder M, Borjorquez P, Birken S, Semprini J, Gorzelitz J, Seaman A, Broman K, Lizaraga I, Charlton M. A survey of cancer affiliate network hubs in the US: Goals, composition, resources, and evaluation. Cancer Causes and Control. Epub September 2025. PMID: 40987993.

Montgomery K, Rademacher N, Richman J, Bhatia S, Broman K. Facility volume and evidence-based practice implementation in surgical care for common cancers. American Journal of Surgery. 2026 Feb: 252:116733. PMID: 41317677.

Broman KK, Hollenquest B, Zubkoff L, Bhatia S, Williams CP. Patient preferences for cancer care within hub and spoke networks: A discrete choice experiment. Journal of the American College of Surgeons. 2026 Mar 6. Online ahead of print. PMID: 41789887.

Broman K, Hughes T, Bredbeck B, Sun J,  Kirichenko D, Carr M, Sharma A, Bartlett E, Nijhuis A, Thompson J, Hieken T, Kottschade L, Downs J, Gyorki D, Stahlie E, van Akkooi A, Ollila D, O’shea K, Song Y, Karakousis G, Moncrieff M, Nobes J, Vetto J, Han D, Hotz M, Farma J, Deneve J, Fleming M, Perez M, Baecher K, Lowe M, Olofsson Bagge R, Mattsson J, Lee A, Berman R, Chai H, Kroon H, Teras R, Teras J, Farrow N, Beasley G, Hui J, Been L, Kruijff S, Sinco B, Sarnaik A, Sondak V, Zager J, Dossett L. International Center-Level Variation in Utilization of Completion Lymph Node Dissection and Adjuvant Systemic Therapy for Sentinel Lymph Node-Positive Melanoma at Major Referral Centers. Annals of Surgery. 2023 May 1;277(5):e1106-e1115. Epub 2023 Apr 6. PMID: 35129464.

Cancer Survivorship

The Broman Lab examines the long-term and late-effects of treatments for cancer including surgery and immunotherapy and seeks to define optimal surveillance practices to monitor for cancer recurrence. We have previously described the incidence of skin cancer in patients who undergo blood or marrow transplant (BMT) and identified novel factors that place patients at higher risk for certain skin cancers. We are now exploring the effects of immunotherapy including subsequent skin cancer and other chronic health conditions. Our survivorship work in melanoma has been funded by the Melanoma Research Foundation.

Recent Publications

Broman K, Meng Q, Holmqvist A, Balas N, Richman J, Landier W, Hageman L, Ross E, Bosworth A, Hok Sreng T, Hollenquest B, Wong L, Bhatia R, Forman S, Armenian S, Weisdorf D, Bhatia S. Incidence of and risk factors for cutaneous malignancies after blood or marrow transplantation. JAMA Dermatology. 2024 Dec 18. PMID: 39693095.

Perez-Morales J, Broman K, Bettampadi D, Haver MK, Zager J, Schabath M. Recurrence Patterns for Regionally Metastatic Melanoma Treated in the Era of Adjuvant Therapy: A Systematic Review and Meta-Analysis. Annals of Surgical Oncology, 2023 Apr;30(4):2364-2374. PMID 36479663.

Broman K, Hughes T, Dossett L, Sun J,  Kirichenko D, Carr M, Sharma A, Bartlett E, Nijhuis A, Thompson J, Hieken T, Kottschade L, Downs J, Gyorki D, Stahlie E, van Akkooi A, Ollila D, Frank J, Song Y, Karakousis G, Moncrieff M, Nobes J, Han D, Vetto J, Deneve J, Fleming M, Olofsson Bagge R, Mattsson J, Lee A, Berman R, Chai H, Kroon H, Teras R, Teras J, Farrow N, Beasley G, Hui J, Been L, Kruijff S, Kim Y, Naqvi S, Perez M, Lowe M, Sarnaik A, Sondak V, Zager J. Active surveillance of melanoma patients with sentinel node metastasis: an international, multi-institution evaluation of post-MSLT-2 adoption and early outcomes. Cancer. 2021 Jul;127(13):2251-2261. PMID 33826754.

Montgomery K, Correya T, Broman K. Real-World Adherence to Nodal Surveillance for Sentinel Lymph Node Positive Melanoma. Annals of Surgical Oncology. 2022 Sep;29(9):5961-5968. PMID: 35608800.