Publications by authors named "Michelle M Stempel"
Background: Indications for postmastectomy radiotherapy (PMRT) in patients with T1 to T2, lymph node-negative (N0) breast cancer with "high-risk" features are controversial. The European Organization for Research and Treatment of Cancer (EORTC) 22922 and National Cancer Institute of Canada Clinical Trials Group MA20 trials reporting improved 10-year disease-free survival with lymph node irradiation included patients with high-risk N0 disease, but, to the authors' knowledge, benefits in patients receiving modern systemic therapy are uncertain.
Methods: The authors retrospectively identified patients with T1 to T2N0 disease who were treated with mastectomy from January 2006 through December 2011.
Background: This study aimed to determine the relationship between mammographic calcifications and magnetic resonance imaging (MRI) tumoral enhancement before and after neoadjuvant chemotherapy (NAC) and to assess the impact of these findings on surgical management.
Methods: This Institutional Review Board-approved, Health Insurance Portability and Accountability Act (HIPAA)-compliant retrospective study involved breast cancer patients who underwent NAC between 2009 and 2015. The study cohort comprised 90 patients with pre- and posttreatment MRI and mammograms demonstrating calcifications within the tumor bed either at presentation or after treatment.
Estimating the OncotypeDX score: validation of an inexpensive estimation tool.
Breast Cancer Res Treat
February 2017
Article Synopsis
- OncotypeDX is a gene expression test used to predict breast cancer outcomes, but its implementation is challenging in low-resource medical settings.
- This study aimed to create a simplified model using patient data (like tumor size and grades) to estimate OncotypeDX scores without requiring the test itself.
- The developed model successfully categorized 57% of patients correctly and identified 41% as low-risk, indicating they have a very low chance (2%) of being high-risk for aggressive disease.
Background: Recent results from the ACOSOG Z0011 trial question the use of intraoperative frozen section (FS) during sentinel lymph node (SLN) biopsy and the role of axillary dissection (ALND) for SLN-positive breast cancer patients. Here we present a 10-year trend analysis of SLN-FS and ALND in our practice.
Methods: We reviewed our prospective SLN database over 10 years (1997-2006, 7509 SLN procedures) for time trends and variation between surgeons in the use of SLN-FS and ALND in patients with cN0 invasive breast cancer.
Purpose: To determine the relationship between breast density, presenting features and molecular subtype of cancer, and surgical treatment received.
Methods: Retrospective review of a prospectively maintained database. Eligible patients had stage 1-3 cancer, were treated between 1/2005 and 6/2007, and had estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) measurements and films available for review.
Background: Axillary lymph node dissection (ALND) in patients with immunohistochemistry (IHC)-determined metastases to the sentinel lymph node (SLN) is controversial. The goal of this study was to examine factors associated with ALND in IHC-only patients.
Methods: Retrospective review of an institutional SLN database from July 1997 to July 2003 was performed.
Background: The therapeutic significance of intramammary lymph nodes is uncertain. The purpose of this study was to identify the appropriate surgical management of the axilla in intramammary node-positive patients undergoing sentinel lymph node (SLN) biopsy.
Methods: A retrospective review of consecutive patients staged between September 1996 and December 2004 was performed.
Background: The aim of this study is to evaluate prevalence, severity, and level of distress of 18 sensations at baseline (3-15 days) and 5 years after breast cancer surgery, and compare sensations after sentinel lymph node biopsy (SLNB) with those after SLNB plus immediate or delayed axillary lymph node dissection (ALND).
Methods: A total of 187 patients with breast cancer completed the Breast Sensation Assessment Scale at baseline and at 3, 6, 12, 24, and 60 months after surgery to assess prevalence, severity, and level of distress of sensations. Of these, 133 had SLNB, and 54 had SLNB and ALND.
Introduction: Antibiotic overuse promotes resistant strains of bacteria and puts patients at risk for adverse reactions. Given the use of educational posters in government-sponsored public health campaigns, this study examined the effectiveness of a waiting room poster in reducing excessive antibiotic use in clinical practice.
Methods: Investigators conducted a 1-month trial of an educational poster with historical controls using three private pediatric group practices in Westchester County, New York.