Publications by authors named "Maureen Byrne"

Purpose: Although germline genetic testing (GT) is recommended for all patients with ovarian cancer (OC) and some patients with endometrial cancer (EC), uptake remains low with multiple barriers. Our center performs GT in parallel with somatic testing via a targeted sequencing assay (MSK-IMPACT) and initiates testing in oncology clinics (mainstreaming). We sought to optimize our GT processes for OC/EC.

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Objectives: Although genetic testing (GT) is universally recommended for patients with epithelial ovarian cancer (EOC), rates are low (34%). In 1/2019, we implemented mainstreaming-GT in parallel with tumor testing via MSK-IMPACT within oncology clinics. We sought to determine GT rates pre/post-mainstreaming and patient characteristics associated with GT.

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Objectives: To investigate the impact of malignant ascites volume on the outcomes of patients with advanced epithelial ovarian carcinoma who undergo primary debulking surgery.

Methods: Patients diagnosed with stage III-IV epithelial ovarian carcinoma and bulky intra-abdominal (TIIIC) disease between 2010 and 2015, who underwent primary debulking surgery followed by multi-agent chemotherapy and known status of residual disease, were drawn from the National Cancer Database. Based on available information, the presence and volume of malignant ascites was categorized as absent, low (<980 mL), and high (980 mL) volume.

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Background: Cervical cancer is the second most common cancer among women in Africa, and in half of the sub-Saharan African countries, it is the most common cancer. Currently, there are scarce resources and limited infrastructure to support cervical cancer screening and treatment in many African countries.

Objectives: The aim of this study is to investigate the capacity of cervical cancer screening and treatment among members of the African Organization for Research and Training in Cancer (AORTIC).

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Article Synopsis
  • The study aimed to assess the effectiveness of minimally invasive surgery for patients diagnosed with stage IA cervical carcinoma undergoing hysterectomy.
  • A total of 1,930 patients were analyzed, with most having stage IA1 disease; comparisons were made between surgical techniques (open vs. minimally invasive) in terms of post-operative outcomes and survival rates.
  • Results indicated that while minimally invasive surgery led to shorter hospital stays, there was no significant difference in overall survival rates between the open and minimally invasive surgery groups, regardless of the type of hysterectomy performed.
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Objective: To investigate the survival of patients with lymph node positive endometrial carcinoma by type of surgical lymph node assessment.

Methods: Patients diagnosed between January 2012 and December 2015 with endometrial carcinoma and uterine confined disease and nodal metastases on final pathology who underwent minimally invasive hysterectomy were identified in the National Cancer Database. Patients who had sentinel lymph node biopsy alone or underwent systematic lymphadenectomy were selected.

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Objective: Investigate the overall survival of patients with FIGO stage I endometrioid endometrial carcinoma who underwent sentinel lymph node biopsy (SLNBx).

Methods: Patients diagnosed between 2012 and 2015 with pathological stage I endometrioid endometrial carcinoma who underwent minimally invasive hysterectomy and had at least one month of follow-up were identified in the National Cancer Database (NCDB). Patients who underwent SLNBx or systematic lymphadenectomy (LND) (defined as at least 20 lymph nodes removed) were selected.

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Objective: Fertility-sparing surgery is rarely offered for patients with stage II epithelial ovarian carcinoma. The aim of the present study was to evaluate the overall survival of pre-menopausal patients with stage II epithelial ovarian carcinoma who did not undergo hysterectomy.

Methods: The National Cancer Database was accessed, and patients aged ≤40 years without a history of another tumor diagnosed between 2004 and 2015 with a pathological stage II epithelial ovarian carcinoma, who underwent lymphadenectomy and received multi-agent chemotherapy, were identified.

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Objective: To assess the emergence of sentinel lymph node biopsy (SLNB) for disparities in utilization, and impacts on perioperative outcomes.

Methods: Retrospective cohort study of the National Cancer Database, selecting for patients with T1NxM0 endometrial cancer undergoing minimally invasive surgical staging from 2012 to 2016. Disparities in SLNB utilization were described.

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Objectives: Reducing anastomotic leak rates after rectosigmoid resection and anastomosis is a priority in patients undergoing gynecologic oncology surgery. Therefore, we investigated the implications of performing near-infrared angiography (NIR) via proctoscopy to assess anastomotic perfusion at the time of rectosigmoid resection and anastomosis.

Methods: We identified all patients who underwent rectosigmoid resection and anastomosis for a gynecologic malignancy between January 1, 2013 and December 31, 2018.

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Objective: Disparities exist between population subgroups in the use of gynecologic oncologists and high-volume hospitals. The objectives of this study were to explore the experiences of black women obtaining ovarian cancer (OC) care at a high-volume center (HVC) and to identify patient-, provider-, and systems-related factors affecting their access to and use of this level of care.

Materials And Methods: Twenty-one semistructured interviews were conducted as part of an institutional review board-approved protocol with women who self-identified as black or African American, treated for OC at a single HVC from January 2013 to May 2017.

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Objectives: To assess complete gross resection (CGR) rates and survival outcomes in patients with advanced ovarian cancer who underwent primary debulking surgery (PDS) during a 13-year period in which specific changes to surgical paradigm were implemented.

Methods: We identified all patients with stage IIIB-IV high-grade ovarian carcinoma who underwent PDS at our institution, with the intent of maximal cytoreduction, from 1/2001-12/2013. Patients were categorized by year of PDS based on the implementation of surgical changes to our approach to ovarian cancer debulking (Group 1, 2001-2005; Group 2, 2006-2009; Group 3, 2010-2013).

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A homozygous nonsense mutation in the cereblon () gene results in autosomal recessive, nonsyndromic intellectual disability that is devoid of other phenotypic features, suggesting a critical role of CRBN in mediating learning and memory. In this study, we demonstrate that adult male knock-out () mice exhibit deficits in hippocampal-dependent learning and memory tasks that are recapitulated by focal knock-out of Crbn in the adult dorsal hippocampus, with no changes in social or repetitive behavior. Cellular studies identify deficits in long-term potentiation at Schaffer collateral CA1 synapses.

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Prenatal cocaine exposure leads to persistent alterations in the growth factor brain-derived neurotrophic factor (BDNF), particularly in the medial prefrontal cortex (mPFC) and hippocampus, brain regions important in cognitive functioning. BDNF plays an important role in the strengthening of existing synaptic connections as well as in the formation of new contacts during learning. A single nucleotide polymorphism in the BDNF gene (Val66Met), leading to a Met substitution for Val at codon 66 in the prodomain, is common in human populations, with an allele frequency of 20-30% in Caucasians.

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A nonsense mutation in the human cereblon gene (CRBN) causes a mild type of autosomal recessive non-syndromic intellectual disability (ID). Animal studies show that crbn is a cytosolic protein with abundant expression in the hippocampus (HPC) and neocortex (CTX). Its diverse functions include the developmental regulation of ion channels at the neuronal synapse, the mediation of developmental programs by ubiquitination, and a target for herpes simplex type I virus in HPC neurons.

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