Background: Breast cancer is the second most common cause of death from cancer in women worldwide. Counterintuitively, large population-based retrospective trials report better survival after breast-conserving surgery (BCS) compared to mastectomy, corrected for tumour- and patient variables. More extensive surgical tissue injury and activation of the sympathetic nervous system by nociceptive stimuli are associated with immune suppression.
View Article and Find Full Text PDFPurpose: Problem solving magnetic resonance imaging (MRI) is used to exclude malignancy in women with equivocal findings on conventional imaging. However, recommendations on its use for women recalled after screening are lacking. This study evaluates the impact of problem solving MRI on diagnostic workup among women recalled from the Dutch screening program, as well as time trends and inter-hospital variation in its use.
View Article and Find Full Text PDFBackground: Unilateral interval breast cancers show less favourable prognostic features than unilateral screen-detected cancers, but data on tumour characteristics of bilateral interval cancers in a systematically screened population are sparse. Therefore, we compared tumour characteristics of bilateral interval cancers with those of bilateral screen-detected cancers.
Methods: We included all 468,720 screening mammograms of women who underwent biennial screening mammography in the South of the Netherlands between January 2005 and January 2015.
Background: To determine the impact of the second reader on screening outcome at blinded double reading of digital screening mammograms.
Methods: We included a consecutive series of 99,013 digital screening mammograms, obtained between July 2013 and January 2015 and double read in a blinded fashion. During 2-year follow-up, we collected radiology, surgery and pathology reports of recalled women.
Objectives: To analyse which mammographic and tumour characteristics led to concordant versus discordant recalls at blinded double reading to further optimise our breast cancer screening programme.
Methods: We included a consecutive series of 99,013 screening mammograms obtained between July 2013 and January 2015. All mammograms were double read in a blinded fashion.
The original version of this article, published on 17 April 2018, unfortunately contained a mistake.
View Article and Find Full Text PDFPurpose: We determined whether the addition of the technologist's opinion may be helpful in deciding if discordant readings at blinded double reading should be recalled.
Methods: A consecutive series of 99,013 digital screening mammograms, obtained between July 2013 and January 2015, were included. All mammograms were first interpreted by a technologist and then double read in a blinded fashion by a team of 13 screening radiologists.
Purpose: To determine the frequency and characteristics of contralateral, non-recalled breast abnormalities following recall at screening mammography.
Methods: We included a series of 130,338 screening mammograms performed between 1 January 2014 and 1 January 2016. During the 1-year follow-up, clinical data were collected for all recalls.
Background: Detected by screening mammography, bilateral breast cancer has a different pathological profile compared to unilateral breast cancer. We investigated the incidence of bilateral interval breast cancers and compared their characteristics with those of unilateral interval breast cancers.
Methods: We included all 468,720 screening mammograms of women who underwent biennial screening mammography in the South of the Netherlands between January 2005 and January 2015.
Background: The Dutch guidelines advise to start radiation therapy (RT) within 5 weeks following breast-conserving surgery (BCS). However, much controversy exists regarding timing of RT. This study investigated its effect on 10-year disease-free survival (DFS) in a Dutch population-based cohort.
View Article and Find Full Text PDFBackground: Immediate breast reconstruction (IBR) after mastectomy has shown to be oncologically safe and to improve quality of life in breast cancer patients. However, most women undergoing mastectomy do not undergo IBR. In this study, we aim to identify breast surgeon-related factors in considering IBR and factors affecting patients' decision to choose for IBR.
View Article and Find Full Text PDFBackground: This study aimed to compare the type and extent of surgery in patients with screen-detected and interval cancers after blinded or nonblinded double-reading of screening mammograms.
Methods: The study investigated a consecutive series of screens double-read in either a blinded (n = 44,491) or nonblinded (n = 42,996) fashion between 2009 and 2011. During a 2 year follow-up period, the radiology reports, surgical correspondence, and pathology reports of all the screen-detected and interval cancers were collected.
Objective: The aim of this study was to retrospectively determine screening outcome in women recalled twice for the same mammographic lesion before, during, and after transition from screen-film (SFM) to full-field digital screening mammography (FFDM).
Methods: We included women with a repeated recall for the same mammographic abnormality (37 at subsequent SFM-screening, obtained between January 2000-April 2010; respectively 54 and 65 women with a prior SFM-screen or FFDM-screen followed by subsequent FFDM-screening, obtained between May 2009-July 2013).
Results: At SFM-screening, repeated recalls for the same lesion comprised 1.
Purpose: The aim of this study was to evaluate contemporary rates of local recurrence (LR) and regional recurrence (RR) in young patients with breast cancer in relation to tumor biology as expressed by biomarker subtypes.
Patients And Methods: Women < 35 years of age who underwent surgery for primary unilateral invasive breast cancer between 2003 and 2008 were selected from the Netherlands Cancer Registry. Patients were categorized according to biomarker subtypes on the basis of hormone receptor (HR) and human epidermal growth factor receptor 2 (HER2) status.
Unilateral single-duct nipple discharge is associated with an increased risk for underlying breast malignancy. There is no consensus whether color of nipple discharge independently indicates the risk of malignancy. We sought to assess the relationship between the color of discharge and the risk of malignancy.
View Article and Find Full Text PDFBackground: To determine whether referred women experience differences in diagnostic workup at non-blinded or blinded double reading of screening mammograms.
Methods: We included a consecutive series of respectively 42.996 and 44.
Objectives: To determine the value of adding a third reader for arbitration of discrepant screening mammography assessments.
Methods: We included a consecutive series of 84,927 digital screening mammograms, double read in a blinded or non-blinded fashion. Arbitration was retrospectively performed by a third screening radiologist.
Introduction: The insulin-like growth factor 1 receptor (IGF-1R) may be involved in the development of resistance against conventional cancer treatment. The aim of this study was to assess whether IGF-1R expression of breast tumors changes during neoadjuvant therapy and to study whether these changes were associated with survival.
Methods: Paraffin embedded tumor tissue was collected from pretreatment biopsies and surgical resections of 62 breast cancer patients who were treated with neoadjuvant chemotherapy or endocrine therapy.
Purpose: To prospectively determine the screening mammography outcome at blinded and non-blinded double reading in a biennial population based screening programme in the south of the Netherlands.
Methods: We included a consecutive series of 87,487 digital screening mammograms, obtained between July 2009 and July 2011. Screening mammograms were double read in either a blinded (2nd reader was not informed about the 1st reader's decision) or non-blinded fashion (2nd reader was informed about the 1st reader's decision).
We determined screening outcome of subsequent screens during and after the transition from screen-film mammography (SFM) to full-field digital mammography (FFDM). A consecutive series of 102,863 subsequent (SFM screens with a prior SFM screen (SFM-SFM cohort), 91,941 FFDM screens with a prior SFM screen (FFDM-SFM cohort) and 90,407 FFDM screens with a prior FFDM screen (FFDM-FFDM cohort) were obtained between January 2006 and July 2013. The referral rate and cancer detection rate (CDR) per 1,000 screens were higher at FFDM-SFM than at SFM-SFM (2.
View Article and Find Full Text PDFBackground: In breast cancer studies, many different endpoints are used. Definitions are often not provided or vary between studies. For instance, "local recurrence" may include different components in similar studies.
View Article and Find Full Text PDFWe determined the re-attendance rate at screening mammography after a single or a repeated false positive recall and we assessed the effects of transition from screen-film mammography (SFM) to full-field digital mammography (FFDM) on screening outcome in women recalled twice for the same mammographic abnormality. The study population consisted of a consecutive series of 302,912 SFM and 90,288 FFDM screens. During a 2 years follow-up period (until the next biennial screen), we collected the breast imaging reports and biopsy results of all recalled women.
View Article and Find Full Text PDFClin Breast Cancer
October 2014
Background: Between 20% and 42% of patients with clinically node-positive breast cancer achieve a pathologic complete response (pCR) of axillary lymph nodes after neoadjuvant chemotherapy or immunotherapy, or both, (chemo[immuno]therapy). Hypothetically, axillary lymph node dissection (ALND) may be safely omitted in these patients. This study aimed to develop a model for predicting axillary pCR in these patients.
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