99 results match your criteria: "Hospital Perola Byington; Roberto Hegg[Affiliation]"
Crit Rev Oncol Hematol
December 2024
Division of Clinical Research and Technological Development, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil; Oncoclínicas&Co - Medica Scientia Innovation Research (MEDSIR), São Paulo, Brazil.
Purpose: This scoping review aims to evaluate the evidence for stereotactic body radiotherapy (SBRT) boost as a potential alternative for brachytherapy (BCT) in treating cervical cancer.
Material And Methods: A comprehensive literature search was conducted across multiple databases. Studies investigating SBRT boost in cervical cancer patients who were either contraindicated for or refused BCT were included.
Cells
August 2024
Laboratório de Lípides (LIM10), Hospital das Clínicas (HCFMUSP), Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 01246-000, Brazil.
The association between high-density lipoprotein (HDL) cholesterol and breast cancer (BC) remains controversial due to the high complexity of the HDL particle and its functionality. The HDL proteome was determined in newly diagnosed BC classified according to the molecular type [luminal A or B (LA or LB), HER2, and triple-negative (TN)] and clinical stage of the disease. Women (n = 141) aged between 18 and 80 years with BC, treatment-naïve, and healthy women [n = 103; control group (CT)], matched by age and body mass index, were included.
View Article and Find Full Text PDFArch Gynecol Obstet
February 2024
Department of Obstetrics and Gynecology, Medical School Hospital, University of Sao Paulo, São Paulo, Brazil.
Clin Breast Cancer
December 2023
Hospital Pérola Byington, São Paulo, SP, Brazil.
Purpose: Trastuzumab was introduced into the Brazilian public health care service for early breast cancer (BC) in 2012. This study describes the survival outcomes and prognostic factors related to early HER2+ BC treatment in a Brazilian reference cancer center.
Patients And Methods: This were a retrospective, single-center, observational study of early HER2+ BC patients treated with trastuzumab in the (neo)adjuvant setting between 2012 and 2018 at Hospital Pérola Byington.
Pediatrics
October 2023
Merck and Co, Inc., Rahway, New Jersey.
Background And Objectives: The 9-valent human papillomavirus (9vHPV) vaccine Phase III immunogenicity study in 9- to 15-year-old boys and girls was extended to assess immunogenicity and effectiveness through 10 years after the last vaccine dose (NCT00943722).
Methods: Boys (n = 301) and girls (n = 971) who received three 9vHPV vaccine doses in the base study (day 1, months 2 and 6) enrolled in the extension. Serum was collected through month 126 for antibody assessments by competitive Luminex immunoassay and immunoglobulin G-Luminex immunoassay.
Int J Mol Sci
August 2023
Laboratório de Lípides (LIM 10), Hospital das Clínicas (HCFMUSP), Faculdade de Medicina, Universidade de São Paulo, São Paulo 01246-000, Brazil.
The expression of inflammation-related miRs bound to high-density lipoproteins (HDLs), the anti-inflammatory activity of HDLs isolated from individuals with breast cancer, and controls were determined. Forty newly diagnosed women with breast cancer naïve of treatment and 10 control participants were included. Cholesterol-loaded bone-marrow-derived macrophages were incubated with HDL from both groups and challenged with lipopolysaccharide (LPS).
View Article and Find Full Text PDFRev Bras Ginecol Obstet
July 2023
Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.
Objective: To analyze the impact of the COVID-19 pandemic on the residency of gynecology and obstetrics in São Paulo.
Methods: Cross-sectional study developed by representatives of residents of the Association of Gynecology and Obstetrics of the State of São Paulo (SOGESP, in the Portuguese acronym). Data were collected from questionnaires applied to gynecology and obstetrics residents registered on the SOGESP website in February 2022.
Rev Assoc Med Bras (1992)
August 2023
Universidade Federal do Rio de Janeiro - Rio de Janeiro (RJ), Brazil.
Eur J Breast Health
July 2023
Strasbourg University Hospital, Strasbourg, France; Institut de Cancérologie Strasbourg Europe (ICANS), Strasbourg Cedex, France; Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS, Université de Strasbourg, Illkirch-Graffenstaden, France.
Objective: Mammographic screening and management of breast cancer (BC) in elderly women are controversial and continue to be an important health problem. To investigate, through members of the Senologic International Society (SIS), the current global practices in BC in elderly women, highlighting topics of debate and suggesting perspectives.
Materials And Methods: The questionnaire was sent to the SIS network and included 55 questions on definitions of an elderly woman, BC epidemiology, screening, clinical and pathological characteristics, therapeutic management in elderly women, onco-geriatric assessment and perspectives.
Sci Rep
June 2023
Programa de Pós-Graduação em Medicina, Universidade Nove de Julho (UNINOVE), São Paulo, Brazil.
The association between plasma lipids and breast cancer (BC) has been extensively explored although results are still conflicting especially regarding the relationship with high-density lipoprotein cholesterol (HDLc) levels. HDL mediates cholesterol and oxysterol removal from cells limiting sterols necessary for tumor growth, inflammation, and metastasis and this may not be reflected by measuring HDLc. We addressed recently diagnosed, treatment-naïve BC women (n = 163), classified according to molecular types of tumors and clinical stages of the disease, in comparison to control women (CTR; n = 150) regarding plasma lipids and lipoproteins, HDL functionality and composition in lipids, oxysterols, and apo A-I.
View Article and Find Full Text PDFFront Oncol
March 2023
Programa de Pós-Graduação em Medicina, Universidade Nove de Julho (UNINOVE), São Paulo, Brazil.
Introduction: The association between high-density lipoprotein cholesterol (HDLc) with the incidence and progression of breast cancer (BC) is controversial. HDL removes excess cholesterol from cells and acts as an antioxidant and anti-inflammatory. BC is a heterogeneous disease, and its molecular classification is important in the prediction of clinical and therapeutic evolution.
View Article and Find Full Text PDFChin Clin Oncol
February 2023
Department of Breast Surgery, Pontificia Universidade Católica do Rio Grande do Sul (PUCRS), RS, Brazil; Department of Oncology, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
Sentinel lymph node biopsy (SLNB) at upfront surgery is the gold-standard surgical method for axillary lymph node staging in early stage breast cancer: the technique provides adequate information regarding axillary status, with similar oncological safety and lower morbidity compared to axillary dissection, despite the false negative rates. Neoadjuvant chemotherapy (NACT), traditionally used for locally advanced breast cancer, plays an important role in the treatment of early stage breast cancer, making downstaging possible in axillary lymph node and breast cancer, thus minimizing the impact of surgery and reducing morbidity, as well as enabling patients with residual disease to be selected for adjuvant treatment. In this respect, the role of SLNB has proved controversial, particularly in view of the lack of data from randomized clinical trials on this subject.
View Article and Find Full Text PDFPrev Med Rep
April 2023
CEDEP - Instituto de Assistência Médica ao Servidor Público Estadual (IAMSPE), Sao Paulo, Brazil.
During the COVID-19 pandemic, several screening exams were postponed, including mammograms. The aim of this study was to evaluate the impact of COVID-19 in mammographic screening in Brazil, considering 2015 to 2021. This was descriptive ecologic study based on the retrospective data of Brazil's mammographic screening program.
View Article and Find Full Text PDFRev Assoc Med Bras (1992)
February 2023
Faculdade de Ciências Médicas da Santa Casa de São Paulo, Departamento de Obstetrícia e Ginecologia - São Paulo (SP), Brazil.
Objective: This study aimed to evaluate the prevalence of ovarian hyperstimulation syndrome (OHSS) and associated risk factors in patients undergoing fertilization cycles at risk of OHSS (≥15 antral follicles or ≥15 oocytes aspirated) and submitted to cryopreservation of all embryos in the Human Reproduction Service of the Pérola Byington Hospital (Referral Center for Women's Health) in São Paulo, SP, Brazil.
Methods: This cross-sectional, institutional, descriptive study of secondary data from patients' charts enrolled in the Assisted Reproduction Service of the Pérola Byington Hospital at risk of OHSS after controlled ovarian stimulation and submitted to cryopreservation of all embryos was conducted between January 2015 and September 2017.
Results: OHSS occurred in 47.
Clin Transl Radiat Oncol
March 2023
Department of Biostatistics and Bioinformatics, Samuel Oschin Cancer Center, Cedars-Sinai, Los Angeles, CA, USA.
Purpose: To assess the impact and optimize the prescription of tissue-equivalent bolus in postmastectomy radiotherapy (PMRT), we compared the use of different bolus regimens tailored by skin involvement status.
Methods: Patients with breast cancer who required PMRT were recruited (NCT01925651) and classified into two groups: standard-risk (SR, without skin involvement) and high-risk (HR, with skin involvement). SR was randomized between no bolus or 5 mm-bolus on alternate days and HR between 5 mm-bolus on alternate days or daily.
Public Health Pract (Oxf)
December 2022
Hospital Pérola Byington, São Paulo, Brazil.
Objective: This study aims to evaluate the impact of the Pink October Campaign on the increase in mammographic screening in Brazil.
Study Design: Ecological observational study, based on retrospective data.
Methods: Brazilian national screening database (DATASUS/SISMAMA/Information System on Breast Cancer) was used as a data source and is publicly available for download and analysis.
BMC Cancer
November 2022
Teaching Hospital of the Federal University of Paraná, Curitiba, PR, Brazil.
Eur J Breast Health
July 2022
Sourasky Medical Center, Tel Aviv, Israel.
Objective: Therapeutic management of ductal carcinoma (DCIS) is heterogeneous among countries worldwide, and some treatment indications are still controversial. To investigate DCIS management in different countries; identify both consensual practices and controversial topics; and survey opinions about the future management of DCIS.
Materials And Methods: The Senologic International Society network members participated to an online survey using a questionnaire, between November 2021 and February 2022.
Breast Cancer Res Treat
August 2022
Instituto de Investigación Sanitaria Gregorio Marañón, Universidad Complutense, CIBERONC, GEICAM, Madrid, Spain.
Purpose: Resistance to endocrine therapy poses a major clinical challenge for patients with hormone receptor-positive (HR +), human epidermal growth factor receptor 2-negative (HER2-) metastatic breast cancer (MBC). We present the preplanned 24-month final overall survival (OS) results, alongside updated progression-free survival (PFS), and objective response rate (ORR) results.
Methods: nextMONARCH is an open-label, controlled, randomized, Phase 2 study of abemaciclib alone or in combination with tamoxifen in women with endocrine-refractory HR + , HER2- MBC previously treated with chemotherapy.
Lasers Surg Med
October 2022
Mastology Department, CRSM-Hospital Pérola Byington, São Paulo, SP, Brazil.
Objectives: Raman spectroscopy has been used to discriminate human breast cancer and its different tumor molecular subtypes (luminal A, luminal B, HER2, and triple-negative) from normal tissue in surgical specimens.
Materials And Methods: Breast cancer and normal tissue samples from 31 patients were obtained by surgical resection and submitted for histopathology. Before anatomopathological processing, the samples had been submitted to Raman spectroscopy (830 nm, 25 mW excitation laser parameters).
Rev Assoc Med Bras (1992)
January 2022
Irmandade da Santa Casa de Misericórdia de São Paulo, School of Medical Sciences, Department of Obstetrics and Gynecology - São Paulo (SP), Brazil.
Objective: The aim of this study was to compare the use of micronized vaginal progesterone and oral dydrogesterone in the endometrial preparation for frozen-thawed embryo transfer.
Methods: This was a randomized, controlled, open, two-armed clinical trial, with women undergoing frozen-thawed embryo transfer along with hormone replacement therapy for endometrial preparation, between September 2019 and February 2021. A total of 73 patients were randomly selected and orally administered 40 mg/day dydrogesterone (dydrogesterone group, n=36) or 800 mg/day micronized vaginal progesterone (micronized vaginal progesterone group, n=37), after endometrial preparation with transdermal estradiol.
Rev Bras Ginecol Obstet
June 2021
Faculdade de Ciências Médicas da Universidade de Campinas, Campinas, SP, Brazil.
Purpose: We evaluated the impact of 21-gene test results on treatment decisions for patients with early-stage breast cancer treated under the public health care system in Brazil, Sistema Único de Saúde.
Methods: Eligible patients treated at Hospital Pérola Byington and Santa Casa de Misericórdia de São Paulo in Brazil were required to have the following characteristics: postsurgery with hormone receptor-positive, human epidermal growth factor 2-negative, node-negative and node-positive, and T1/T2 breast cancer and patients with these characteristics were candidates for adjuvant systemic therapy. Treatment recommendations, chemotherapy plus hormonal therapy (CT + HT) or HT alone, were captured before and after 21-gene test results.
Front Oncol
January 2021
Institute of Chemistry, Federal University of Uberlândia, Uberlândia, Brazil.
Cancer is considered an age-related disease that, over the next 10 years, will become the most prevalent health problem worldwide. Although cancer therapy has remarkably improved in the last few decades, novel treatment concepts are needed to defeat this disease. Photodynamic Therapy (PDT) signalize a pathway to treat and manage several types of cancer.
View Article and Find Full Text PDFFuture Oncol
May 2021
AstraZeneca, Buenos Aires, Argentina.
FLABRA evaluated the prevalence of mutations, genetic counseling and management approaches in patients with ovarian cancer in Latin America. Patients with ovarian cancer from six Latin-American countries were enrolled. Tumor samples were tested for mutations ().
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