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During breast screening, atypical epithelial proliferations (atypia) can be detected. These are not cancer, but may mean that a woman is more likely to develop breast cancer in the future. This study explores how atypia develop into breast cancer in terms of number of women, time to cancer development, cancer type and severity, and whether this varies for different types of atypia. The results will be used to create new guidelines for how women with atypia should be followed up.
Prospective phase 2a clinical trial to demonstrate proof-of-concept for simultaneous hyperpolarized [1-13C]pyruvate and 18F-FDG for positron emission tomography (PET) and MRS (magnetic resonance spectroscopy) in a PET/MR scanner in patients with cancer.
Breast cancer screening involves taking mammograms (x-rays) of women's breasts to search for signs of cancer. This study investigates the impact of test threshold, screening interval (frequency) and age of eligibility on intermediate outcomes, and health outcomes such as mortality and morbidity. This observational study links breast cancer screening, cancer registry and mortality registration data to answer these questions.
This Pilot Study is to investigate the tear proteins in a multitude of cancer types and indulge in biomarker discovery to manufacture simple, accurate, and novel tear-based diagnostic tests.
The prospective observational study of radiation therapy is conducted on the nipple-areola complex(close resection margin at primary tumor site) or regional lymph nodes(including axilla and supraclavicular lymph node) with a high risk of local recurrence in nipple-sparing mastectomy with reconstruction, we're going to analysis the effects of radiation therapy and cosmetic effects. By evaluating survival rate, recurrence pattern(local lymph node and metastasis to the whole body), side effects, cosmetic effects, from the patients who have gone through Nipple Sparing Mastectomy with reconstruction.
The study should evaluate distribution of 99mTc-ZHER2:41071 Affibody molecule in patients with primary HER2-positive and HER2-negative breast cancer The primary objectives are: 1. To assess distribution of 99mTc-ZHER2:41071 in normal tissues and in tumors over time; 2. To evaluate dosimetry of 99mTc-ZHER2:41071; 3. To obtain initial information concerning safety and tolerability of 99mTc-ZHER2:41071 after single intravenous injection: The secondary objectives are: 1. To compare the tumor imaging data with the data concerning HER2 expression obtained by immunohistochemistry (IHC) and/or fluorescent in situ hybridization (FISH) analysis of biopsy samples.
Intercostobrachial nerve (ICBN) is a cutaneous nerve that provides sensation to the lateral chest, upper medial arm and axilla. It arises from the second intercostal nerve and leave intercostal space at the level of midaxillary line. It then pierces the serratus anterior muscle and enters axilla. Intercostobrachial nerve is encountered during axillary lymph node dissection (ALND) while mobilizing axillary contents laterally off the chest wall and tends to tether axillary contents to the lateral chest wall. Many surgeons routinely sacrifice it as doing so makes mobilization easier and allow exposure of long thoracic neve. Currently there is no consensus on the usefulness of preserving intercostobrachial nerve. According to a 2020 systemic review and meta-analysis, prevalence of CPSP/ PPSP following breast cancer surgery ranged from 2% to 78% and pooled prevalence was found to be 35%. Higher prevalence was associated with ALND. Several risk factors have been identified which contribute to the development of PPSP. These include; Preexisting pain, preoperative opioid exposure, genetics, psychological factors such as anxiety, depression or catastrophizing, intensity of acute postoperative pain and nerve injury during surgery. As a result of nerve injury, damaged and non-damaged nerve fibers start generating action potential spontaneously. These are considered ectopic inputs as they do not arise from peripheral terminals. These inputs lead to the development of central sensitization, which is a state of exaggerated functional response of neurons involved in the pain pathway. This increased sensitization results due to increased membrane excitability, enhanced synaptic efficacy and decreased inhibition. The aim of the present trial is to investigate the effect of ICBN preservation on chronic/ persistent post surgical pain (CPSP/ PPSP). This will be achieved through a randomized control trial with CPSP/ PPSP as a primary outcome measure. Secondary outcome measures will include Health Related Quality of Life (HRQoL), operating time, lymph node yield, functional status of ipsilateral shoulder, post-operative complications and post-operative use of opioid analgesics.
Organized breast cancer screening (OBCS) has been implemented nationwide since 2004 inFrance, but the participation rate remains low (51%) and inequities in participation were reported. Strategies as mobile mammography units could be effective to increase participation in OBCS and reduce inequities, especially in underserved areas in regard to this screening. Our main objective is to evaluate this device and to identify how to incorporate a mobile unit in the OBCS with a view to tackle territorial inequities in OBCS participation. The project will be conducted as a randomized controlled cluster trial in 2022-2024, in remote areas of 4 French departments. The main intervention is to propose an appointment at the mobile unit in complement to the current OBCS in these remote areas. In addition, few weeks before this intervention, local actors will carry out actions to promote OBCS with mobile unit specific information tools. This randomized controlled trial will provide a high level of evidence in assessing the mobile unit effects on participation and inequities.
The purpose of this research study is to test new ways to improve the usefulness of the world's first total-body positron emission tomography (PET)/computed tomography (CT) scanner (EXPLORER) by collecting data from PET scans using one of three different imaging agents: 18F-PSMA; 18F-FES; or, 68Ga DOTATATE. These imaging agents are approved by the FDA to be used for patients diagnosed with prostate cancer (18F-PSMA), neuroendocrine tumor (68Ga DOTATATE), or breast cancer (18F-FES).
In the UK women with a strong family history of breast cancer are eligible for breast cancer risk estimation via Family History Risk and Prevention Clinics (FHRPCs). Here breast cancer risk is calculated using popular risk prediction models like the Tyrer-Cuzick, CanRisk or Gail models. These models combine breast cancer risk factors to calculate a risk estimate for women. Risk factors include, family history, hormonal and reproductive factors, and risk factors related to health behaviours, for example, smoking, exercise and alcohol intake. Recently, risk estimation for breast cancer has become more accurate with the inclusion of mammographic density and Single Nucleotide Polymorphisms (SNPs) into popular risk prediction models. The addition of these new risk factors could alter the risk estimates that women in FHRPCs have been provided. How much these new risk factors alter a previously given risk estimate is unknown. It is also unknown how women will react to a revised risk estimate, especially if it changes their previous estimate and their access to preventive management options. This research aims to explore this gap in the literature.