Survival outcomes after omission of surgery for ductal carcinoma in situ.

Clinical trials of active surveillance (AS) for Ductal Carcinoma in Situ (DCIS) are underway. We sought to understand the historical management of biologically favorable DCIS and to determine the outcomes of patients who did not have immediate surgery. Using data from the NCDB from 2004 to 2017, the selected cohort included women >40 years of age, with low or intermediate grade and hormone receptor (HR) positive DCIS.

Proportion of Patients With Ductal Carcinoma In Situ That Qualify for Observation Criteria Set Forth by Clinical Trials.

Background: The COMET, LORD, and LORIS clinical trials are investigating the role of active surveillance in low-risk ductal carcinoma in situ (DCIS). The objective of this study was to identify the proportion of patients eligible for these trials amongst a cohort of patients treated at our institution.

Methods: Retrospective chart review was performed of patients diagnosed with DCIS who were treated from 2013 to 2022.

Rates of newly diagnosed breast cancer at commission on cancer facilities during the early phase of the COVID-19 pandemic.

Introduction: The objective of this study was to examine the impact of the early part of the COVID-19 pandemic on the number of newly diagnosed breast cancer cases at Commission on Cancer (CoC)-accredited facilities relative to the United States (U.S.) population.

Patient values in breast cancer surgical decision-making - The WhySurg study.

Background: The objective of this study was to describe patient values and personality traits associated with breast surgery choice for patients with breast cancer.

Methods: A survey based on qualitative patient interviews and the Big-Five personality trait profile was distributed to Love Research Army volunteers aged 18-70 years old who underwent breast cancer surgery from 2009 to 2020. Multivariable logistic regression analysis was used to determine independent patient values and personality traits for the choice of breast-conserving surgery (BCS), unilateral mastectomy (UM) and bilateral mastectomy (BM).

Exploring Breast Surgeons' Attitudes on Universal Genetic Testing: A Qualitative Study.

Background: The American Society of Breast Surgeons released a consensus statement that genetic testing should be made available to all patients with a personal history of breast cancer. However, it is not clear whether physicians feel comfortable with universal genetic testing (UGT) or if they have sufficient knowledge to interpret results and manage them appropriately.

Objective: The purpose of this study was to explore breast surgeons' attitudes toward UGT.

Trends in bilateral mastectomy rates among different racial backgrounds: A National Cancer Database study.

Introduction: Studies have shown a decrease in bilateral mastectomy (BM) rates over the past five to ten years, but it is not clear if these decreases are the same across different patient races.

Methods: Using the National Cancer Database (NCDB) we examined BM rates for patients with AJCC Stage 0-II unilateral breast cancer from 2004 to 2020 for White versus nonwhite races (Blacks, Hispanics, and Asians). Multivariable logistic regression was used to identify patient and facility factors associated with BM by patient race from 2004 to 2006 and 2018-2020.

Potential evidence of peritoneal recurrence in Stage-II colon cancer from the control arm of CALGB9581.

Background: Relapse of early-stage colon cancer (CC) after curative-intent resection occurs. We hypothesized that known risk factors for peritoneal metastases (PM) can define a high-risk state (HRS) that predicts recurrence and mortality.

Methods: CALGB9581 trial patients receiving no adjuvant treatment after stage-II CC resection were included.

A Multi-institutional Study of Peritoneal Recurrence Following Resection of Low-grade Appendiceal Mucinous Neoplasms.

Background: Peritoneal dissemination of low-grade appendiceal mucinous neoplasms (LAMNs), sometimes referred to as pseudomyxoma peritonei, can result in significant morbidity and mortality. Little is known about the natural history of localized (non-disseminated) LAMNs.

Objective: The goal of this study was to evaluate the risk of peritoneal recurrence in patients with localized LAMNs.

RIG-I-Like Receptor LGP2 Is Required for Tumor Control by Radiotherapy.

Dendritic cells (DC) play an essential role in innate immunity and radiation-elicited immune responses. LGP2 is a RIG-I-like receptor involved in cytoplasmic RNA recognition and antiviral responses. Although LGP2 has also been linked to cell survival of both tumor cells and T cells, the role of LGP2 in mediating DC function and antitumor immunity elicited by radiotherapy remains unclear.

4-Hydroxyacetophenone modulates the actomyosin cytoskeleton to reduce metastasis.

Metastases are the cause of the vast majority of cancer deaths. In the metastatic process, cells migrate to the vasculature, intravasate, extravasate, and establish metastatic colonies. This pattern of spread requires the cancer cells to change shape and to navigate tissue barriers.

Evaluation of the Order SMARTT: An Initiative to Reduce Phlebotomy and Improve Sleep-Friendly Labs on General Medicine Services.

We assessed the effectiveness of a quality improvement project to reduce routine labs in clinically stable patients, while also promoting sleep-friendly lab timing. The electronic health record was modified with an "Order Sleep" shortcut to facilitate sleep-friendly lab draws. A "4 AM Labs" column was added to electronic patient lists to signal which patients had early morning labs ordered.

The modern approach to the nipple-sparing mastectomy.

A modern perspective on the nipple-sparing mastectomy (NSM) looking at current indications as well as the most up-to-date evidence both in the literature and from our institution. There is an in-depth description of our NSM technique and an overview of alternative approaches, including the robotic technique. The complicated concept of the learning curve is addressed and ideas on how to train other NSM adopters.

The "Nipple Whipple"?! A Pilot Study to Assess the Ergonomic Effects of Nipple-Sparing Mastectomy.

Background: Nipple-sparing mastectomies (NSMs) with reconstruction are believed to be more difficult to perform than skin-sparing mastectomies (SSMs), but there is little quantitative data to support this claim.

Methods: This prospective study analyzed four surgeons performing mastectomies. Electromyography (EMG) electrodes placed on selected muscle groups on each surgeon were used to capture muscle exertion intraoperatively and a percentage of maximum voluntary exertion was calculated (%MVE).

DNA Methylation Controls Metastasis-Suppressive 14q32-Encoded miRNAs.

Expression of 14q32-encoded miRNAs is a favorable prognostic factor in patients with metastatic cancer. In this study, we used genomic inhibition of DNA methylation through disruption of DNA methyltransferases DNMT1 and DNMT3B and pharmacologic inhibition with 5-Aza-2'-deoxycytidine (5-Aza-dC, decitabine) to demonstrate that DNA methylation predominantly regulates expression of metastasis-suppressive miRNAs in the 14q32 cluster. DNA demethylation facilitated CCCTC-binding factor (CTCF) recruitment to the maternally expressed gene 3 differentially methylated region (MEG3-DMR), which acts as a -regulatory element for 14q32 miRNA expression.

Obstruction predicts worse long-term outcomes in stage III colon cancer: A secondary analysis of the N0147 trial.

Background: Patients with colon cancer often present with obstruction. Large series have reported obstruction among the high-risk features, yet prospective data on its specific prognostic influence are lacking. We hypothesized that obstruction is an independent risk factor for poor prognosis in patients with stage III colon cancer.

Estimating Surgical Risk for Patients With Severe Comorbidities.

This study assesses whether estimates from the new American College of Surgeons Surgical Risk Calculator more closely match residents’ estimations of risk and determines outcomes of similar patients in the National Surgical Quality Improvement Project.

Advanced Animal Model of Colorectal Metastasis in Liver: Imaging Techniques and Properties of Metastatic Clones.

Patients with a limited number of hepatic metastases and slow rates of progression can be successfully treated with local treatment approaches. However, little is known about the heterogeneity of liver metastases, and animal models capable of evaluating the development of individual metastatic colonies are needed. Here, we present an advanced model of hepatic metastases that provides the ability to quantitatively visualize the development of individual tumor clones in the liver and estimate their growth kinetics and colonization efficiency.

Molecular Subtype-Specific Expression of MicroRNA-29c in Breast Cancer Is Associated with CpG Dinucleotide Methylation of the Promoter.

Basal-like breast cancer is a molecularly distinct subtype of breast cancer that is highly aggressive and has a poor prognosis. MicroRNA-29c (miR-29c) has been shown to be significantly down-regulated in basal-like breast tumors and to be involved in cell invasion and sensitivity to chemotherapy. However, little is known about the genetic and regulatory factors contributing to the altered expression of miR-29c in basal-like breast cancer.