75 research outputs found

    Print information to inform decisions about mammography screening participation in 16 countries with population-based programs

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    OBJECTIVE: To profile and compare the content and presentation of written communications related to informed decision-making about mammography. METHODS: Materials from 16 screening programs organized at the national or regional level were analyzed according to five major information domains suggested by the international literature. RESULTS: A majority of countries provided information on the program (interval, cost and quality). There was considerable variability in comprehensiveness of elements in the domains, e.g., test characteristics (false positive/negative) and pros and cons of screening. The majority noted the likelihood of recall for further tests, few commented on the risks of additional tests or finding unimportant tumors. The audit also found variation in presentation (words and pictures). CONCLUSIONS: Presentation of comprehensive, but balanced information on screening benefits and risks is complex and daunting. Issues such as framing effects, coupled with debate about screening efficacy are challenging to the design of effective information tools. The objective of increasing screening prevalence at the population level must be balanced with objectively presenting complete and clear information. Additional research is needed on how information (and mode of presentation) impact screening decisions. PRACTICE IMPLICATIONS: Public health officials need to articulate their objectives and review written communication according to important decision-making domains. [Authors]]]> Decision Making ; Informed Consent ; Mammography ; Mass Screening ; Patient Acceptance of Health Care ; Patient Education as Topic oai:serval.unil.ch:BIB_E228BFDB52E0 2022-05-07T01:28:47Z openaire documents urnserval <oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"> https://serval.unil.ch/notice/serval:BIB_E228BFDB52E0 Evaluation médico-économique de la thrombolyse de l'accident vasculaire cérébral hyperaigu par le rtPA (Actilyse) http://www.chuv.ch/bdfm/cdsp/MemoireBonvin.pdf Bonvin, Marielle Université de Lausanne, Faculté des hautes études commerciales masterthesis 2003 <![CDATA[L'AVC (accident vasculaire cérébral) représente la troisième cause de mortalité et la première cause de handicap fonctionnel chronique dans la population adulte occidentale. Son fardeau économique compte parmi les plus élevés de toutes les maladies. Ce mémoire a pour objet d'étudier l'impact économique d'une nouvelle procédure d'intervention, la thrombolyse des infarctus cérébraux par le rtPA, sur les coûts du Centre hospitalier universitaire vaudois. [Table des matières] 1. Introduction. 2. Physiopathologie et traitement de l'accident vasculaire cérébral : 2.1 Mécanismes de la coagulation sanguine 2.2 L'athérosclérose. 2.3 L'infarctus cérébral. 2.4 Les traitements de l'AVC. 2.5 La controverse. 2.6 La situation au CHUV. 2.7 Les enjeux économiques. 3. Méthodologie. 4. Tableaux : caractéristiques de l'échantillon et résultats. 5. Discussion. 6. Limites de l'étude. 7. Conclusion

    Characteristics associated with requests by pathologists for second opinions on breast biopsies.

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    AIMS: Second opinions in pathology improve patient safety by reducing diagnostic errors, leading to more appropriate clinical treatment decisions. Little objective data are available regarding the factors triggering a request for second opinion despite second opinion consultations being part of the diagnostic system of pathology. Therefore we sought to assess breast biopsy cases and interpreting pathologists characteristics associated with second opinion requests. METHODS: Collected pathologist surveys and their interpretations of 60 test set cases were used to explore the relationships between case characteristics, pathologist characteristics and case perceptions, and requests for second opinions. Data were evaluated by logistic regression and generalised estimating equations. RESULTS: 115 pathologists provided 6900 assessments; pathologists requested second opinions on 70% (4827/6900) of their assessments 36% (1731/4827) of these would not have been required by policy. All associations between case characteristics and requesting second opinions were statistically significant, including diagnostic category, breast density, biopsy type, and number of diagnoses noted per case. Exclusive of institutional policies, pathologists wanted second opinions most frequently for atypia (66%) and least frequently for invasive cancer (20%). Second opinion rates were higher when the pathologist had lower assessment confidence, in cases with higher perceived difficulty, and cases with borderline diagnoses. CONCLUSIONS: Pathologists request second opinions for challenging cases, particularly those with atypia, high breast density, core needle biopsies, or many co-existing diagnoses. Further studies should evaluate whether the case characteristics identified in this study could be used as clinical criteria to prompt system-level strategies for mandating second opinions

    Accuracy of self-reported breast cancer among women undergoing mammography

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    This study estimated the sensitivity and specificity of self-reported breast cancer and their associations with patient factors and pathologic findings using data from the Breast Cancer Surveillance Consortium

    A Randomized Study Comparing Digital Imaging to Traditional Glass Slide Microscopy for Breast Biopsy and Cancer Diagnosis.

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    BACKGROUND: Digital whole slide imaging may be useful for obtaining second opinions and is used in many countries. However, the U.S. Food and Drug Administration requires verification studies. METHODS: Pathologists were randomized to interpret one of four sets of breast biopsy cases during two phases, separated by ≥9 months, using glass slides or digital format (sixty cases per set, one slide per case, RESULTS: Sixty-five percent of responding pathologists were eligible, and 252 consented to randomization; 208 completed Phase I (115 glass, 93 digital); and 172 completed Phase II (86 glass, 86 digital). Accuracy was slightly higher using glass compared to digital format and varied by category: invasive carcinoma, 96% versus 93% ( CONCLUSIONS: In this large randomized study, digital format interpretations were similar to glass slide interpretations of benign and invasive cancer cases. However, cases in the middle of the spectrum, where more inherent variability exists, may be more problematic in digital format. Future studies evaluating the effect these findings exert on clinical practice and patient outcomes are required

    Performance of diagnostic mammography differs in the United States and Denmark

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    Diagnostic mammography is the primary imaging modality to diagnose breast cancer. However, few studies have evaluated variability in diagnostic mammography performance in communities, and none has done so between countries. We compared diagnostic mammography performance in community-based settings in the United States and Denmark. The performance of 93,585 diagnostic mammograms from 180 facilities contributing data to the U.S. Breast Cancer Surveillance Consortium (BCSC) from 1999 through 2001 was compared to that of all 51,313 diagnostic mammograms performed at Danish clinics in 2000. We used the imaging workup’s final assessment to determine sensitivity, specificity, and an estimate of accuracy: area under the receiver-operating characteristics (ROC) curve (AUC). Diagnostic mammography had slightly higher sensitivity in the United States (85%) than in Denmark (82%). In contrast, it had higher specificity in Denmark (99%) than in the United States (93%). The AUC was high in both countries: U.S. 0.91; and Denmark 0.95. Denmark’s higher accuracy may result from supplementary ultrasound examinations, which are provided to 74% of Danish women but only 37% to 52% of U.S. women. In addition, Danish mammography facilities specialize in either diagnosis or screening, possibly leading to greater diagnostic mammography expertise in facilities dedicated to symptomatic patients. Performance of community-based diagnostic mammography settings varied markedly between the two countries, indicating that it can be further optimized

    Patterns of Breast Magnetic Resonance Imaging Use in Community Practice

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    Breast magnetic resonance imaging (MRI) is increasingly used for breast cancer screening, diagnostic evaluation, and surveillance However, we lack data on national patterns of breast MRI use in community practice

    Diagnosis of second breast cancer events after initial diagnosis of early stage breast cancer

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    To examine whether there are any characteristics of women or their initial tumors that might be useful for tailoring surveillance recommendations to optimize outcomes. We followed 17,286 women for up to 5 years after an initial diagnosis of ductal carcinoma in situ (DCIS) or early stage (I/II) invasive breast cancer diagnosed between 1996 and 2006. We calculated rates per 1,000 women years of recurrences and second breast primaries relative to demographics, risk factors, and characteristics of initial diagnosis: stage, treatment, mode of initial diagnosis. Nearly 4% had a second breast cancer event (314 recurrences and 344 second breast primaries). Women who used adjuvant hormonal therapy or were ≥80 years had the lowest rates of second events. Factors associated with higher recurrence and second primary rates included: initial DCIS or stage IIB, estrogen/progesterone receptor-negative, younger women (<50 years). Women with a family history or greater breast density had higher second primary rates, and women who received breast conserving surgery without radiation had higher recurrence rates. Roughly one-third of recurrences (37.6%) and second primaries (36.3%) were not screen-detected. Initial mode of diagnosis was a predictor of second events after adjusting for age, stage, primary treatment, and breast density. A recent negative mammogram should not falsely reassure physicians or women with new breast symptoms or changes because one-third of second cancers were interval cancers. This study does not provide any evidence in support of changing surveillance intervals for different subgroups
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