Publications by authors named "Anna Chichura"

Background: This study aimed to determine if the neoadjuvant (NAT) KEYNOTE-522 regimen was associated with higher rates of pathologic complete response (pCR), corresponding to higher rates of breast conservation therapy (BCT) in early-stage triple-negative breast cancer (TNBC) patients.

Patients And Methods: Stage II-III TNBC patients diagnosed between 2019 and 2022 who underwent NAT were analyzed retrospectively. NAT with KEYNOTE-522 versus control NAT were compared for rates of BCT, axillary node dissection (ALND), pCR, and survival outcomes.

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Background: Recommendations for breast surveillance following breast plastic surgery are frequently changing. Establishing guidelines for long-term monitoring protocols may help identify treatable conditions and prevent untoward sequelae. We sought to evaluate the current state of evidence-based long-term monitoring protocols for patients following breast augmentation, reduction, and breast reconstruction.

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Article Synopsis
  • - This review discusses a phase II clinical trial that compared the effectiveness of adjuvant trastuzumab emtansine (T-DM1) with a combination of paclitaxel and trastuzumab (TH) for treating stage I HER2-positive breast cancer, as studied in the ATEMPT trial.
  • - Results showed that patients receiving T-DM1 experienced better disease-free survival, meaning they had a lower chance of cancer returning after treatment.
  • - However, the T-DM1 group also faced more treatment-related discontinuations and did not have fewer toxicities, indicating that further long-term follow-up is necessary to assess overall survival benefits between T-DM1 and TH.
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Background: Time to treatment has been identified as a quality metric, with longer time to treatment associated with poorer outcomes. Genetic evaluation is an integral part of treatment counseling for patients with breast cancer. With expanding indications for genetic testing and consideration of expansion of genetic testing to all patients with a personal history of breast cancer, this study aims to evaluate the effect of genetic evaluation on the time interval from initial surgical visit to surgery.

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Background: Alternative service delivery models are critically needed to address the increasing demand for genetics services and limited supply of genetics experts available to provide pre-test counseling.

Methods: We conducted a prospective randomized controlled trial of women with stage 0-III breast cancer not meeting National Comprehensive Cancer Network (NCCN) criteria for genetic testing. Patients were randomized to pre-test counseling with a Chatbot or a certified genetic counselor (GC).

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Background: Little is known about the experience of the male breast cancer patient. Mastectomy is often offered despite evidence that breast-conserving surgery (BCS) provides similar outcomes.

Methods: Two concurrent online surveys were distributed from August to October 2020 via social media to male breast cancer (MBC) patients and by email to American Society of Breast Surgeon members.

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Objective S: To evaluate travel distance in women with advanced or recurrent epithelial ovarian cancer (OC) undergoing cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (HIPEC) and the subsequent impact upon outcomes.

Methods: An IRB-approved single-institution prospective registry was queried for women with OC who underwent HIPEC from 1/1/2009-12/1/2020. Demographic, oncologic, and surgical data were recorded.

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Background And Objectives: Screening for breast cancer in highly penetrant mutation carriers during pregnancy and lactation is challenging and consensus guidelines are lacking. This study evaluates the lapse in screening and the interval pregnancy-associated breast cancer rate.

Methods: A single-institution retrospective cohort study of pregnant and lactating patients with known pathogenic germline mutations was performed.

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Objective(s): To evaluate the incidence and associated risk factors for anastomotic failure following interval debulking surgery (IDS) with or without hyperthermic intraperitoneal chemotherapy (HIPEC) in women with advanced ovarian cancer.

Methods: We performed a retrospective cohort study in women with stage III/IV high-grade ovarian cancer treated with neoadjuvant chemotherapy followed by IDS with colorectal resection and HIPEC from 2017 to 2020. These patients were compared to a historical control cohort who underwent IDS with colorectal resection without HIPEC from 2009 to 2016.

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Objective(s): To evaluate the impact of frailty on postoperative complications following cytoreductive surgery (CRS) with hyperthermic intra-peritoneal chemotherapy (HIPEC) in women with advanced or recurrent gynecologic cancer.

Methods: An IRB-approved single-institution prospective registry was queried for women who underwent CRS with HIPEC for advanced or recurrent gynecologic cancer from 1/1/2014-12/31/2020. Frailty was defined as a modified Frailty Index (mFI) score of ≥2.

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Objective: To evaluate perioperative outcomes in elderly versus non-elderly women with advanced or recurrent epithelial ovarian cancer undergoing surgery with hyperthermic intraperitoneal chemotherapy (HIPEC).

Methods: A single-institution prospective registry was analyzed for women with ovarian cancer who underwent surgery with HIPEC from January 2014 to December 2020. Elderly age was defined as ≥65 years at surgery.

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Objective(s): To identify recurrence patterns and outcomes in women with advanced or recurrent epithelial ovarian cancer (EOC) after cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC).

Methods: This is an IRB-approved single-institution cohort study of women who underwent CRS+HIPEC for advanced or recurrent EOC followed in a prospective registry from 1/12/2014-3/1/2020. Recurrence locations were defined as pelvic, upper abdominal (UA) and/or extra-peritoneal (EP).

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Objectives: To evaluate the incidence of intra-operative metabolic and electrolyte abnormalities and subsequent impact on peri-operative outcomes in women with gynecologic cancer undergoing cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS + HIPEC).

Methods: An IRB-approved single institution retrospective cohort study was performed in women with gynecologic cancer who underwent CRS + HIPEC. Patient demographics, intra-operative electrolyte and metabolic values and peri-operative outcomes were recorded.

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Objective: To determine peri-operative outcomes in women with advanced epithelial ovarian cancer (EOC) undergoing interval debulking surgery (IDS) with hyperthermic intraperitoneal chemotherapy (HIPEC) via minimally invasive interval debulking surgery (MIS) or laparotomy (LAP).

Methods: A single institution, retrospective cohort study was performed in women with EOC who underwent IDS with HIPEC from 2017 to 2019 via MIS or LAP. Peri-operative outcomes were compared using univariate analysis.

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Objective(s): To determine whether antibiotic treatment (ABX) during platinum chemotherapy (PC) for epithelial ovarian cancer (EOC) impacts progression-free survival (PFS) and overall survival (OS).

Study Design: Retrospective single institution cohort study in women with newly diagnosed stage III/IV EOC (n = 424) who underwent cytoreductive surgery (CRS) and PC from 2009 to 2015. ABX for >48 h, including ABX against gram-positive (anti-G + ABX) bacteria were recorded.

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Introduction: Hyperthermic intraperitoneal chemotherapy following cytoreductive surgery (CRS) is a treatment strategy that has been evaluated in recurrent ovarian cancer. The aim of this study was to examine if survival was similar regardless of platinum sensitivity.

Methods: A retrospective study of women with recurrent platinum sensitive or resisteant epithelial ovarian cancer who were treated with cytoreductive surgery (CRS) and HIPEC between the years 2010-2018 was performed.

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Study Objective: To compare the feasibility of opportunistic bilateral salpingectomy (OBS) at the time of vaginal hysterectomy (VH) for benign disease in patients with and without relative contraindications (RCs) to the vaginal approach and to evaluate the factors that contribute to the inability to perform OBS.

Design: Retrospective chart review.

Setting: Tertiary medical center.

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Study Objective: Hysterectomy for uterine leiomyoma(s) is associated with significant morbidity including blood loss. A systematic review and meta-analysis was conducted to identify nonhormonal interventions, perioperative surgical interventions, and devices to minimize blood loss at the time of hysterectomy for leiomyoma.

Data Sources: Librarian-led search of Embase, MEDLINE, Web of Science, Scopus, Cumulative Index to Nursing and Allied Health Literature, and Cochrane databases from 1946 to 2018 with hand-guided updates.

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Environmental exposure to estrogens and estrogen like contaminants during early development is thought to contribute to the risk of developing breast cancer primarily due to an early onset of puberty; however, exposure during key developing windows may also influence the risk of developing the disease. The goal of this study was to ask whether exposure to the metalloestrogen cadmium alters mammary gland development due to acceleration of puberty onset or to an effect on early development of the mammary gland. The results show that, in addition to advancing the onset of puberty, exposure to the metalloestrogen cadmium altered mammary gland development prior to its effect on puberty onset.

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Article Synopsis
  • Somatic gene mutations can make cancer cells less susceptible to T-cell-based immunotherapies, particularly through specific gene alterations in melanoma cells.
  • A large-scale CRISPR-Cas9 screen identified genes whose loss hinders CD8 T cell function, revealing that genes important for antigen presentation and interferon-γ signaling are often involved.
  • The study pinpointed APLNR mutations in tumors resistant to immunotherapy, demonstrating how APLNR's interaction with JAK1 affects immune responses, ultimately impacting the effectiveness of certain cancer treatments in mouse models.
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The immune system has a powerful ability to recognize and kill cancer cells, but its function is often suppressed within tumors, preventing clearance of disease. Functionally diverse innate and adaptive cellular lineages either drive or constrain immune reactions within tumors. The transcription factor (TF) BACH2 regulates the differentiation of multiple innate and adaptive cellular lineages, but its role in controlling tumor immunity has not been elucidated.

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Improving the functional avidity of effector T cells is critical in overcoming inhibitory factors within the tumor microenvironment and eliciting tumor regression. We have found that Cish, a member of the suppressor of cytokine signaling (SOCS) family, is induced by TCR stimulation in CD8(+) T cells and inhibits their functional avidity against tumors. Genetic deletion of Cish in CD8(+) T cells enhances their expansion, functional avidity, and cytokine polyfunctionality, resulting in pronounced and durable regression of established tumors.

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Early life exposure to estrogens and estrogen like contaminants in the environment is thought to contribute to the early onset of puberty and consequently increases the risk of developing breast cancer in the exposed female. The results of this study show that in utero exposure to the metalloestrogen arsenite altered mammary gland development prior to its effect on puberty onset. In the prepubertal gland, in utero exposure resulted in an increase in the number of mammosphere-forming cells and an increase in branching, epithelial cells, and density.

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