Publications by authors named "Lauren Postlewait"

Background: The National Accreditation Program for Breast Cancer (NAPBC) standards were recently revised to promote breast cancer (BC) risk assessment and subsequent referral for high-risk services. This project sought to estimate the proportion of patients at high risk for BC in the authors' safety-net hospital system, gauge patient interest in high-risk services, and define resources for program development.

Methods: Women presenting for breast imaging during 2 weeks in 2023 were surveyed.

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Background: For patients with clinically node-positive (cN+) breast cancer undergoing neoadjuvant chemotherapy (NAC), retrieving previously clipped, biopsy-proven positive lymph nodes during sentinel lymph node biopsy [i.e., targeted axillary dissection (TAD)] may reduce false negative rates.

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Article Synopsis
  • The study investigates the impact of internal mammary lymphadenopathy (IML) on breast cancer treatment and outcomes, focusing on patients from the I-SPY-2 clinical trial between 2010 and 2022.
  • Out of 2095 patients, 198 were found to have IML, with most detected via MRI; younger age, larger tumors, and higher tumor grade were linked to IML presence.
  • Although IML patients were more likely to receive radiation therapy, there were no significant differences in recurrence rates or event-free survival compared to patients without IML, suggesting that IML is not a negative prognostic factor when treated with modern approaches.
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  • The study investigates how estrogen receptor (ER), progesterone receptor (PR), and HER2 expression differences between primary tumors and metastatic sites affect overall survival in metastatic breast cancer patients.
  • Out of 254 patients, a significant percentage showed changes in biomarker expression, with the loss of ER or PR linked to worse survival outcomes, particularly when tumors changed to more aggressive subtypes.
  • Despite the observed correlation between changes in receptor expression and survival, multivariate analysis found that discordance in biomarker expression was not statistically linked to decreased survival outcomes.
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Background And Objectives: The ACOSOGZ0011 trial found that overall survival (OS) for patients with 1-2 positive nodes undergoing sentinel lymph node biopsy-alone (SLNB) was noninferior to completion axillary lymph node dissection (ALND), but excluded patients undergoing mastectomy. Our study examined patterns of ALND and its relationship with OS for SLNB-positive patients undergoing mastectomy.

Methods: The National Cancer Database was queried (2010-2017) for patients with cT1-2N0 breast cancer undergoing mastectomy with positive sentinel lymph nodes.

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Background: Prior analyses of general surgery resident case logs have indicated a decline in the number of endocrine procedures performed during residency. This study aimed to identify factors contributing to the endocrine operative experience of general surgery residents and compare those who matched in endocrine surgery fellowship with those who did not.

Methods: We analyzed the case log data of graduates from 18 general surgery residency programs in the US Resident Operative Experience Consortium over an 11-year period.

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Introduction: Technical learning in surgical training is multifaceted and existing literature suggests a positive relationship between case volume and proficiency. Little is known about factors associated with a decreased volume of operative experience. This study aimed to identify resident and program factors associated with general surgery residents (GSR) in the bottom quartile of logged case volume upon program completion.

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Article Synopsis
  • Researchers studied how axillary surgery practices have changed over time following neoadjuvant chemotherapy (NAC) in breast cancer patients enrolled in the I-SPY2 trial from 2011 to 2021.
  • The findings showed a significant decrease in axillary lymph node dissection (ALND) procedures, particularly in patients who were clinically node-positive (cN+) at diagnosis, with a corresponding increase in the use of sentinel lymph node (SLN) surgery.
  • These trends indicate a shift in surgical practices, with less extensive surgery being performed after NAC, particularly for patients showing node positivity before treatment, reflecting evolving clinical approaches prior to further research outcomes.
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Neoadjuvant chemotherapy (NAC) increases rates of successful breast-conserving surgery (BCS) in patients with breast cancer. However, some studies suggest that BCS after NAC may confer an increased risk of locoregional recurrence (LRR). We assessed LRR rates and locoregional recurrence-free survival (LRFS) in patients enrolled on I-SPY2 (NCT01042379), a prospective NAC trial for patients with clinical stage II to III, molecularly high-risk breast cancer.

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Objective: To examine differences in resident operative experience between male and female general surgery residents.

Background: Despite increasing female representation in surgery, sex and gender disparities in residency experience continue to exist. The operative volume of male and female general surgery residents has not been compared on a multi-institutional level.

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Objective: To determine the relationship between race/ethnicity and case volume among graduating surgical residents.

Background: Racial/ethnic minority individuals face barriers to entry and advancement in surgery; however, no large-scale investigations of the operative experience of racial/ethnic minority residents have been performed.

Methods: A multi-institutional retrospective analysis of the Accreditation Council for Graduate Medical Education case logs of categorical general surgery residents at 20 programs in the US Resident OPerative Experience Consortium database was performed.

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Background And Objectives: The majority of patients undergoing mastectomy before the COVID-19 pandemic were admitted for 23-h observation to the hospital. Indications for observation included drain care education, pain control and observation for possible early surgical complications. This study compared the rates of outpatient mastectomy before, during, and after the COVID-19 pandemic and indirectly evaluated the safety of same-day discharge.

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Background: There is concern regarding the competency of today's general surgery graduates as a large proportion defer independent practice in favor of additional fellowship training. Little is known about the graduates who directly enter general surgery practice and if their operative experiences during residency differ from graduates who pursue fellowship.

Methods: Nineteen Accreditation Council for Graduate Medical Education-accredited general surgery programs from the US Resident OPerative Experience Consortium were included.

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Background: The management of estrogen receptor positive (ER+)/HER2- and lymph node (LN) negative breast cancers can be influenced by Oncotype DX recurrence score (RS) in the USA. However, the benefit of RS in T1 tumors (≤ 1 cm) is not clear.

Methods: We retrieved 199 T1 ER+/HER2-/LN- breast cancer diagnosed between 1993 and 2016 that had undergone RS testing.

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Introduction: The early COVID-19 pandemic rapidly transformed healthcare and medical education. We sought to evaluate the professional and personal impact of the pandemic on 2019-2020 Breast Surgical Oncology (BSO) fellows in Society of Surgical Oncology approved programs to capture the experience and direct future changes.

Methods: From July 15, 2020 to August 4, 2020 a survey was administered to the American Society of Breast Surgeons' fellow members.

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Background: Inflammatory breast cancer (IBC) is a rare breast malignancy with poor outcomes compared with non-IBC. Age-related differences in tumor biology, treatment, and clinical outcomes have been described in non-IBC. This study evaluated age-related differences in IBC.

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Background: Nearly one-third of patients with inflammatory breast cancer (IBC) present with de novo stage IV disease. There are limited data on frequency and clinical outcomes of contralateral axillary metastasis (CAM) in IBC with no consensus diagnostic and treatment guidelines.

Patients And Methods: Frequency of synchronous CAM was calculated in unilateral IBC patients at a single center (10/2004-6/2019).

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Background: Adrenocortical carcinoma (ACC) is a rare but aggressive malignancy, and many prognostic factors that influence survival remain undefined. Individually, the GRAS (Grade, Resection status, Age, and Symptoms of hormone hypersecretion) parameters have demonstrated their prognostic value in ACC. This study aimed to assess the value of a cumulative GRAS score as a prognostic indicator after ACC resection.

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Introduction: The role of modified radical mastectomy (MRM) in patients with de novo stage IV inflammatory breast cancer (IBC) remains controversial. We evaluated the impact of MRM on outcomes in this population.

Methods: Ninety-seven women presenting with stage IV IBC were identified in an institutional database (2007-2016) and were stratified by receipt of MRM or no surgery (non-MRM).

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Background: Heat shock protein (HSP)-90 promotes tumor growth and is overexpressed in many malignancies. HSP90 expression profile and its potential as a therapeutic target in primary and metastatic neuroendocrine tumors (NETs) are not known.

Methods: HSP90 cytoplasmic expression and Ki-67 index were re-reviewed and scored by a pathologist blinded to all other clinicopathologic variables for patients who underwent resection of primary and metastatic gastroenteropancreatic (GEP) neuroendocrine tumors at a single institution (2000-2013).

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