Gretchen Ahrendt, MD
Professor, Surgery-Surgical Oncology

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Medical School:
  • MD, Johns Hopkins University School of Medicine (1990)
Undergraduate School:
  • BA, Carleton College (MN) (1985)
Internship:
  • Johns Hopkins University Program (1990)
Residency:
  • Johns Hopkins University Program, Chief Resident, Breast Surgical Oncology (1998)
Department: Surgery-Surgical Oncology

Professional Titles

  • Professor, Surgery-Surgical Oncology
  • Professor of Surgery
  • Director, Diane O'Connor Thompson Breast Center

Teaching

  • Visiting Professor (2017)
    School of Medicine, Surgery
    Breast cancer

Publications

  • Gebhardt BJ, Thomas J, Horne ZD, Champ CE, Ahrendt GM, Diego E, Heron DE, Beriwal S. Standardization of nodal radiation therapy through changes to a breast cancer clinical pathway throughout a large, integrated cancer center network. Pract Radiat Oncol. 2018 Jan - Feb;8(1):4-12. PubMed PMID: 28939351
  • Gebhardt BJ, Thomas J, Horne ZD, Champ CE, Farrugia DJ, Diego E, Ahrendt GM, Beriwal S. Is completion axillary lymph node dissection necessary in patients who are underrepresented in the ACOSOG Z0011 trial?. Adv Radiat Oncol. 2018 Jul-Sep;3(3):258-264. PubMed PMID: 30197938
  • Le-Petross HT, McCall LM, Hunt KK, Mittendorf EA, Ahrendt GM, Wilke LG, Ballman KV, Boughey JC. Axillary Ultrasound Identifies Residual Nodal Disease After Chemotherapy: Results From the American College of Surgeons Oncology Group Z1071 Trial (Alliance). AJR Am J Roentgenol. 2018 Mar;210(3):669-676. PubMed PMID: 29381381
  • Clark BZ, Farrugia DJ, Landmann A, Diego EJ, Dabbs DJ, Puhalla SL, Jankowitz RC, Brufsky AM, Ahrendt GM, McAuliffe PF, Bhargava R. Prognostic Significance of Modified Residual Disease in Breast and Nodes (mRDBN) Algorithm After Neoadjuvant Chemotherapy for Breast Cancer. Am J Clin Pathol. 2018 Mar 7;149(4):332-343. PubMed PMID: 29481634
  • Landmann A, Farrugia DJ, Zhu L, Diego EJ, Johnson RR, Soran A, Dabbs DJ, Clark BZ, Puhalla SL, Jankowitz RC, Brufsky AM, Ahrendt GM, McAuliffe PF, Bhargava R. Low Estrogen Receptor (ER)-Positive Breast Cancer and Neoadjuvant Systemic Chemotherapy: Is Response Similar to Typical ER-Positive or ER-Negative Disease?. Am J Clin Pathol. 2018 May 31;150(1):34-42. PubMed PMID: 29741562
  • Gebhardt BJ, Thomas J, Horne ZD, Champ CE, Ahrendt GM, Diego E, Heron DE, Beriwal S. Standardization of nodal radiation therapy through changes to a breast cancer clinical pathway throughout a large, integrated cancer center network. Pract Radiat Oncol. 2018 Jan - Feb;8(1):4-12. PubMed PMID: 28939351
  • Farrugia DJ, Landmann A, Zhu L, Diego EJ, Johnson RR, Bonaventura M, Soran A, Dabbs DJ, Clark BZ, Puhalla SL, Jankowitz RC, Brufsky AM, Lembersky BC, Ahrendt GM, McAuliffe PF, Bhargava R. Magee Equation 3 predicts pathologic response to neoadjuvant systemic chemotherapy in estrogen receptor positive, HER2 negative/equivocal breast tumors. Mod Pathol. 2017 Aug;30(8):1078-1085. PubMed PMID: 28548119
  • Wesmiller SW, Bender CM, Conley YP, Bovbjerg DH, Ahrendt G, Bonaventura M, Sereika SM. A Prospective Study of Nausea and Vomiting After Breast Cancer Surgery. J Perianesth Nurs. 2017 Jun;32(3):169-176. PubMed PMID: 28527544
  • Edmond SN, Shelby RA, Keefe FJ, Fisher HM, Schmidt JE, Soo MS, Skinner CS, Ahrendt GM, Manculich J, Sumkin JH, Zuley ML, Bovbjerg DH. Persistent Breast Pain Among Women With Histories of Breast-conserving Surgery for Breast Cancer Compared With Women Without Histories of Breast Surgery or Cancer. Clin J Pain. 2017 Jan;33(1):51-56. PubMed PMID: 27922843
  • Wesmiller SW, Sereika SM, Bender CM, Bovbjerg D, Ahrendt G, Bonaventura M, Conley YP. Exploring the multifactorial nature of postoperative nausea and vomiting in women following surgery for breast cancer. Auton Neurosci. 2017 Jan;202:102-107. PubMed PMID: 27729204
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Practice Locations

Diane O'Connor Thompson Breast Center - Anschutz
1635 Aurora Ct
3rd Floor
Aurora, CO 80045
720-848-1030

University of Colorado Hospital (UCH)
12605 E. 16th Ave
Aurora, CO 80045
720-848-0000

CU Specialty Care at Highlands Ranch Breast Care
1500 Park Central Drive, Suite 203
Highlands Ranch, CO 80129
720-516-2120

Hospital Affiliation
  • University of Colorado Hospital

Specialty Information

Specialties
  • Breast Surgical Oncology, Board Certification
  • American Board of Surgery, Board Certification (1999)
Conditions & Treatments
  • Cancers - Breast Cancer
  • Cancers
Clinical Interests
Breast cancer including DCIS and all invasive breast cancers Neoadjuvant therapy to minimize extent of breast and axillary surgery Oncoplastic breast surgery Nipple sparing surgery Sentinel node surgery Tailored surgical treatment of the axilla Benign breast conditions

Care Philosophy
My mission is to provide personalized advanced surgical breast cancer care to my patients and to help them navigate their cancer treatment to optimize their cancer outcome and survivorship. I also strive to support the emotional and educational needs of my patients and their families and to guide them to additional support services as required.

General Information

Medical Schools:
  • MD, Johns Hopkins University School of Medicine (1990)
Undergraduate Schools:
  • BA, Carleton College (MN) (1985)
Internships:
  • Johns Hopkins University Program (1990)
Residency Programs:
  • Johns Hopkins University Program, Chief Resident, Breast Surgical Oncology (1998)
Department: Surgery-Surgical Oncology
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