Publications by authors named "Katharine M Esselen"

Background: "Financial Toxicity" (FT) is the financial burden imposed on patients due to disease and its treatment. Approximately 50% of gynecologic oncology patients experience FT. This study describes the implementation and outcomes of a novel financial navigation program (FNP) in gynecologic oncology.

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Objectives: We sought to quantify exposure to and financial impacts of poly (adenosine diphosphate ribose) polymerase inhibitor (PARPi) treatments for eventually withdrawn ovarian cancer indications.

Methods: We identified in Optum's deidentified Clinformatics® Data Mart database 1695 patients with ovarian cancer diagnoses who received olaparib, rucaparib, or niraparib between January 2015 and September 2021. We describe PARPi use and out-of-pocket, total healthcare, and PARPi spending among patients with ovarian cancer with 3 or more previous lines of therapy.

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Background: Withdrawals of drug indications may reveal potential inadequacies in the regulatory approval processes of new drugs. Understanding potential weaknesses of the regulatory approval process is paramount given the increasing use of expedited pathways. In this paper, we focus on three poly-ADP-ribose polymerase inhibitors (olaparib, rucaparib and niraparib) for the treatment of women with heavily pretreated, recurrent ovarian cancer, which were eventually withdrawn.

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Objective: To measure change in financial toxicity from pregnancy to the postpartum period and to identify factors associated with this change.

Design: Longitudinal survey.

Setting: Obstetric clinics at an academic medical center in Massachusetts between May 2020 and May 2022.

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Purpose: We evaluated financial toxicity (FT) in patients with gynecologic cancer treated with radiation and assessed the impact of the COVID-19 pandemic on patients' financial wellbeing.

Methods: Patients completed a survey 1 month after completing radiation from August 2019-March 2020 and November 2020-June 2021. The survey included the COmprehensive Score for Financial Toxicity (COST) tool, EQ-5D to measure quality of life (QOL) and pandemic-related questions for the second survey period.

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Introduction: The financial burden of pregnancy in the United States can be high and is associated with worse mental health and birth outcomes. Research on the financial burden of health care, such as the development of the COmprehensive Score for Financial Toxicity (COST) tool, has been conducted primarily among patients with cancer. This study aimed to validate the COST tool and use it to measure financial toxicity and its impacts among obstetric patients.

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Financial toxicity describes the adverse impact patients experience from the monetary and time costs of cancer care. The financial burden patients experience comes from substantially increased out-of-pocket spending that often occurs concurrent with reduced income due to sick leave from work. Financial toxicity is common affecting approximately half of patients with a gynecological cancer depending on the validated instrument used for measurement.

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Objectives: The goal of our study was to identify preoperative factors in patients with endometrial intraepithelial neoplasia that are associated with concurrent endometrial cancer to select patients who may benefit from sentinel lymph node (SLN) assessment at the time of hysterectomy.

Methods: Retrospective single institution cohort study of patients with a preoperative diagnosis of endometrial intraepithelial neoplasia who underwent hysterectomy with or without staging from January 2010 to July 2020. Modified Poisson regression was used to calculate risk ratios (RR) and 95% confidence intervals (CI).

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Endometriosis, a painful gynecological condition accompanied by inflammation in women of reproductive age, is associated with an increased risk of ovarian cancer. We evaluated the role of peritoneal heme accumulated during menstrual cycling, as well as peritoneal and lesional macrophage phenotype, in promoting an oncogenic microenvironment. We quantified the heme-degrading enzyme, heme oxygenase-1 (HO-1, encoded by 1) in normal peritoneum, endometriotic lesions and endometriosis-associated ovarian cancer (EAOC) of clear cell type (OCCC).

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Immune checkpoint blockade (ICB) relieves CD8 T-cell exhaustion in most mutated tumors, and TCF-1 is implicated in converting progenitor exhausted cells to functional effector cells. However, identifying mechanisms that can prevent functional senescence and potentiate CD8 T-cell persistence for ICB non-responsive and resistant tumors remains elusive. We demonstrate that targeting /HP1γ in CD8 T cells augments transcription initiation and chromatin remodeling leading to increased transcriptional activity at and .

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Objective: The Comprehensive Score for Financial Toxicity (COST) is a validated instrument measuring the economic burden experienced by patients with cancer. We evaluated the frequency of financial toxicity at different COST levels and stratified risk factors and associations with cost-coping strategies by financial toxicity severity.

Methods: We analyzed previously collected survey data of gynecologic oncology patients from two tertiary care institutions.

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Objective: To utilize a novel crowdsourcing method to measure financial toxicity and its effects among a national cohort of gynecologic cancer patients.

Methods: Crowdsourcing methods were used to administer an online survey to women in the United States with gynecologic cancers. We used the Comprehensive Score for Financial Toxicity (COST) tool to measure financial toxicity and the EQ-5D-3L to measure quality of life (QOL).

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Background: Vaginal cuff dehiscence (VCD) is a rare but potentially serious complication following hysterectomy with an estimated incidence of 0.14-1.4%.

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Objective: Small cell carcinoma of the ovary, hypercalcemic type (SCCOHT) and SMARCA4-deficient undifferentiated uterine sarcoma (SMARCA4-DUS) are rare and aggressive tumors, primarily affecting pre- and perimenopausal women. Inactivating SMARCA4 mutations are thought to be the driving molecular events in the majority of these tumors. Here, we report the clinical course of a family with germline SMARCA4 mutation and compare large cohorts of these rare tumor types.

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Introduction: Enhanced recovery after surgery (ERAS) pathways combine a comprehensive set of peri-operative practices that have been demonstrated to hasten patient post-operative recovery. We aimed to evaluate the adoption of ERAS components and assess attitudes towards ERAS among gynecologic oncologists.

Methods: We developed and administered a cross-sectional survey of attending, fellow, and resident physicians who were members of the Society of Gynecologic Oncology in January 2018.

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Objectives: Financial toxicity is increasingly recognized as an adverse outcome of cancer treatment. Our objective was to measure financial toxicity among gynecologic oncology patients and its association with demographic and disease-related characteristics; self-reported overall health; and cost-coping strategies.

Methods: Follow-up patients at a gynecologic oncology practice completed a survey including the COmprehensive Score for Financial Toxicity (COST) tool and a self-reported overall health assessment, the EQ-VAS.

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•Gynecologic oncologists face multiple barriers in participating in global health.•Several barriers may be addressed at the institutional level.•Most global health experiences involved direct patient care, while only a small proportion involved research.

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Article Synopsis
  • A 2009 trial showed that routine CA-125 testing in ovarian cancer doesn't improve survival but leads to increased chemotherapy use and reduced quality of life, prompting guidelines to make such testing optional.
  • This study followed 1241 women with ovarian cancer in remission to assess changes in CA-125 test and CT scan use before and after the 2009 trial, as well as the economic implications of surveillance testing.
  • Results indicated that the use of CA-125 tests and CT scans remained consistent over time, with around 86% of patients getting 3 or more CA-125 tests from 2004-2009 and 91% from 2010-2012, showing no significant change.
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Objective: To describe the clinical characteristics of patients with endosalpingiosis (ES) and examine its association with endometriosis and gynecologic malignancies.

Methods: We queried the medical record for patients who underwent gynecologic surgery (Gynecologic Surgery Cohort (GSC), n=58,161) from 1998 to 2013 at a single institution for the presence of "endosalpingiosis" (ES). Demographic and clinical characteristics were collected for patients with pathologically confirmed ES (n=838).

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Study Objective: To assess the sensitivity of preoperative endometrial biopsy in detection of uterine leiomyosarcoma (ULMS).

Study Design: Retrospective analysis of a prospectively collected database (Canadian Task Force III).

Setting: Two academic tertiary referral centers.

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Objective: To examine hysterectomies in the United States performed for gynecologic malignancies and identify factors associated with the use of minimally invasive techniques.

Methods: This is a cross-sectional analysis of the 2012 National Inpatient Sample, the largest national all-payer database of hospital discharges. International Classification of Diseases, 9th Revision, Clinical Modification codes for any type of hysterectomy performed for gynecologic malignancy were used to abstract pertinent observations.

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We describe the case of an 81-yr-old woman who presented with bilateral pulmonary nodules in the setting of a large uterine mass, concerning for a gynecologic malignancy such as leiomyosarcoma. However, fine-needle aspiration of a lung nodule revealed a spindle cell neoplasm consistent with solitary fibrous tumor (SFT), a rare mesenchymal neoplasm characterized by a patternless architecture of spindle cells and branching ectatic vessels. Total abdominal hysterectomy demonstrated a primary SFT of the uterus.

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Objectives: To analyze margin status and prognostic factors for complications in patients undergoing vulvectomy for invasive squamous cell cancer (iSCC) with and without plastic-assisted closure.

Methods: Demographic and clinical data were collected on 94 patients with iSCC who underwent vulvectomy between 2004 and 2013. All pathology slides were re-reviewed by two gynecologic pathologists.

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Although the rates of cervical squamous cell carcinoma have been declining, the rates of cervical adenocarcinoma are increasing in some countries. Outcomes for advanced cervical adenocarcinoma remain poor. Precision mapping of genetic alterations in cervical adenocarcinoma may enable better selection of therapies and deliver improved outcomes when combined with new sequencing diagnostics.

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