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1.
Scand J Prim Health Care ; 42(1): 123-131, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38116949

RESUMEN

OBJECTIVE: Diagnosis of cancer is challenging in primary care due to the low incidence of cancer cases in primary care practice. A prolonged diagnostic interval may be due to doctor, patient or system factors, or may be due to the characteristics of the cancer itself. The objective of this study was to learn from Primary Care Physicians' (PCP) experiences of incidents when they had failed to think of, or act on, a cancer diagnosis. DESIGN: A qualitative, online survey eliciting PCP narratives. Thematic analysis was used to analyse the data. SETTING AND SUBJECTS: A primary care study, with narratives from 159 PCPs in 23 European countries. MAIN OUTCOME MEASURES: PCPs' narratives on the question 'If you saw this patient with cancer presenting in the same way today, what would you do differently? RESULTS: The main themes identified were: thinking broadly; improvement in communication and clinical management; use of other available resources and 'I wouldn't do anything differently'. CONCLUSION (IMPLICATIONS): To achieve more timely cancer diagnosis, PCPs need to provide a long-term, holistic and active approach with effective communication, and to ensure shared decision-making, follow-up and continuing re-assessment of the patients' clinical conditions.


Diagnosing cancer in primary care is challenging due to the low incidence of cancer in practice and the multiple confounding factors that are involved in the diagnostic process.The need to think broadly, make improvements in communication and clinical management, and use other available resources were the main themes from Primary Care Physicians' (PCPs') narratives about their learning experiences from missed or late cancer diagnoses.A long-term, holistic and active approach with effective communication, follow-up and continuing re-assessment of the patients' clinical conditions was another theme for making improvements.Some PCPs, on reflection, would not have done anything differently.


Asunto(s)
Neoplasias , Médicos de Atención Primaria , Humanos , Neoplasias/diagnóstico , Comunicación , Personal de Salud , Atención Primaria de Salud
2.
Fam Pract ; 40(1): 183-187, 2023 02 09.
Artículo en Inglés | MEDLINE | ID: mdl-35861148

RESUMEN

BACKGROUND: During the COVID-19 pandemic, the incidence of chronic disease had drastically been reduced due to health care interruptions. The aim of this study is to analyse cancer diagnosis during the last 2 years of the COVID-19 pandemic. METHODS: Time-series study of cancer diagnoses recorded in primary care settings, using data from the primary care electronic health records from January 2014 to December 2021. We obtained the expected monthly rate per 100,000 inhabitants using a time regression adjusted by trend and seasonality. We additionally compared rates of cancer diagnoses in 2019 with those of 2020 and 2021 using the t-test. We performed the analysis globally, by sex and by type of cancer. RESULTS: In 2020, the rate of cancer diagnoses had reduced by -21% compared to 2019 (P < 0.05). Greater reductions were observed during the lockdown in early 2020 (>40%) and with some types of cancers, especially prostate and skin cancers (-29.6% and -26.9%, respectively, P < 0.05). Lung cancers presented statistically non-significant reductions in both years. Cancer diagnosis returned to expected around March 2021, and the rate in 2021 was similar to that of 2019 (overall difference of 0.21%, P = 0.967). However, an 11% reduction was still found when comparing the pandemic months of 2020-2021 with pre-pandemic months. CONCLUSIONS: Although primary care cancer diagnoses in 2021 have returned to pre-pandemic levels, missing diagnoses during the last 2 years have not been fully recovered.


Asunto(s)
COVID-19 , Neoplasias , Masculino , Humanos , Registros Electrónicos de Salud , Pandemias , España/epidemiología , COVID-19/diagnóstico , COVID-19/epidemiología , Control de Enfermedades Transmisibles , Atención Primaria de Salud , Prueba de COVID-19 , Neoplasias/diagnóstico , Neoplasias/epidemiología
3.
Health Expect ; 26(1): 476-487, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36447409

RESUMEN

BACKGROUND: Early detection of symptoms and prompt diagnosis of ovarian cancer are considered important avenues for improving patient experiences and outcomes. METHODS: This qualitative study used a phenomenological approach to perform patient interviews, collecting individual accounts of the prediagnostic phase in women diagnosed and treated for ovarian cancer in 2016-2017. Purposive sampling was used to obtain a diverse sample of 24 participants, while thematic content analysis was used to extract themes and subthemes from interview data. RESULTS: Three themes and nine subthemes were identified. The first theme was women's delay in recognizing symptoms and seeking care, with subthemes on the lack of knowledge about early signs of ovarian cancer, gender-related barriers and false reassurance from negative test results. A second theme was missed opportunities during healthcare encounters, due to misattribution of women's symptoms by their physicians, underestimation of symptom severity and need for mediation and inadequate tests and/or false negative results. Finally, interviews highlighted the use of resources and alternative healthcare pathways, including complementary/alternative medicines, access to private health care and women's capacity for action and decision-making (agency) about their health. CONCLUSION: Delayed diagnosis of ovarian cancer is rooted in both individual factors (lack of health literacy, reluctance to seek care) and systemic issues (missed opportunities in healthcare encounters, access to timely specialist care). Further research is needed to investigate the extent to which traditional gender roles and socioeconomic inequalities condition women's ability to manage their own health and to interact with health professionals and the health system. PATIENT AND PUBLIC CONTRIBUTION: In addition to the patient participation during the interviews, one author was a representative of a patient association.


Asunto(s)
Atención a la Salud , Neoplasias Ováricas , Femenino , Humanos , España , Investigación Cualitativa , Neoplasias Ováricas/diagnóstico
4.
Aten Primaria ; 55(6): 102619, 2023 06.
Artículo en Español | MEDLINE | ID: mdl-37043975

RESUMEN

OBJECTIVE: To identify missed opportunities in the diagnosis of ovarian cancer (OC) in the public health system of Catalonia, through the analysis of the perceptions of health professionals on the stories's experiences of OC patients. DESIGN: Qualitative exploratory-descriptive study, with two focus groups. SETTING: Primary Care, November 2017. PARTICIPANTS: Thirty-four professionals based on theoretical sampling: 21 family doctors, 8 professionals from sexual and reproductive health centres and 5 hospital gynaecologists. METHODS: Participants discussed the different diagnostic pathways for women with OC through the presentation of flowcharts which were developed with three storie's and experiences of OC patients. RESULTS: Three themes with various sub-themes were identified as follow: a)lack of cancer diagnostic suspicion (lack of knowledge of symptoms of OC, anamnesis and physical examination overlooked, fragmentation of patient's care and bias and prejudice); b)difficulties in activating the diagnostic process (limited access to tests, unequal accessibility to gynaecology and lack of follow-up); and c)absence of fast-track referral system. CONCLUSIONS: The results offer insight into the difficulties of early diagnosis of OC in our setting. We believe that their identification will allow the development of strategies to improve diagnostic accuracy and quality of care for women with OC in our setting.


Asunto(s)
Personal de Salud , Neoplasias Ováricas , Humanos , Femenino , España , Investigación Cualitativa , Grupos Focales , Neoplasias Ováricas/diagnóstico
5.
Aten Primaria ; 54 Suppl 1: 102440, 2022 10.
Artículo en Español | MEDLINE | ID: mdl-36435580

RESUMEN

Cancer is a major cause of morbidity and mortality. Tobacco use, unhealthy diet, and physical inactivity are some of the lifestyle risk factors that have led to an increase in cancer. This article updates the evidence and includes recommendations for prevention strategies for each of the cancers with the highest incidence. These are based on the reduction of risk factors (primary prevention) and early diagnosis of cancer through screening and early detection of signs and symptoms, in medium-risk and high-risk populations. This update of the 2022 PAPPS has taken into account the vision of the National Health System Cancer Strategy, an update approved by the Interterritorial Council of the National Health System on January 2021 and the European Strategy (Europe's Beating Cancer Plan) presented on 4 February 2021.


Asunto(s)
Neoplasias , Humanos , Neoplasias/diagnóstico , Neoplasias/epidemiología , Neoplasias/prevención & control , Factores de Riesgo , Estilo de Vida , Dieta , Tamizaje Masivo
6.
Aten Primaria ; 54(5): 102288, 2022 05.
Artículo en Español | MEDLINE | ID: mdl-35477080

RESUMEN

Breast cancer is the leading cause of death in the world among women. The Spanish National Health System (SNHS) introduced population-based breast cancer screening in 1990. As in most European programs, risk is identified on the basis of age and a mammogram is offered every two years to women aged 50-69 years. Scientific evidence is moving toward personalized screening, based on individual risk. This article presents the clinical trials that will evaluate the efficacy of personalized screening and some studies carried out in our environment on the effect of informing women of the benefits and adverse effects of screening or the acceptability and feasibility of offering personalized screening, in the Shared Decision Making context. The Preventive Activities and Health Promotion Program can help transform screening in our SNHS.


Asunto(s)
Neoplasias de la Mama , Detección Precoz del Cáncer , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/prevención & control , Femenino , Humanos , Mamografía , Tamizaje Masivo , Atención Primaria de Salud
7.
Aten Primaria ; 52 Suppl 2: 44-69, 2020 11.
Artículo en Español | MEDLINE | ID: mdl-33388117

RESUMEN

Cancer is a major cause of morbidity and mortality. Tobacco use, unhealthy diet, and physical inactivity are some of the lifestyle risk factors that have led to an increase in cancer. This article updates the evidence, and includes recommendations for prevention strategies for each of the cancers with the highest incidence. These are based on the reduction of risk factors (primary prevention) and early diagnosis of cancer through screening and early detection of signs and symptoms, in medium-risk and high-risk populations.


Asunto(s)
Tamizaje Masivo , Neoplasias , Dieta , Humanos , Estilo de Vida , Neoplasias/diagnóstico , Neoplasias/prevención & control , Factores de Riesgo
8.
Gastroenterol Hepatol ; 42(3): 188-201, 2019 Mar.
Artículo en Inglés, Español | MEDLINE | ID: mdl-30621911

RESUMEN

There is limited scientific evidence available to stratify the risk of developing metachronous colorectal cancer after resection of colonic polyps and to determine surveillance intervals and is mostly based on observational studies. However, while awaiting further evidence, the criteria of endoscopic follow-up needs to be unified in our setting. Therefore, the Spanish Association of Gastroenterology, the Spanish Society of Family and Community Medicine, the Spanish Society of Digestive Endoscopy, and the Colorectal Cancer Screening Group of the Spanish Society of Epidemiology, have written this consensus document, which is included in chapter 10 of the "Clinical Practice Guideline for Diagnosis and Prevention of Colorectal Cancer. 2018 Update". Important developments will also be presented as regards the previous edition published in 2009. First of all, situations that require and do not require endoscopic surveillance are established, and the need of endoscopic surveillance of individuals who do not present a special risk of metachronous colon cancer is eliminated. Secondly, endoscopic surveillance recommendations are established in individuals with serrated polyps. Finally, unlike the previous edition, endoscopic surveillance recommendations are given in patients operated on for colorectal cancer. At the same time, it represents an advance on the European guideline for quality assurance in colorectal cancer screening, since it eliminates the division between intermediate risk group and high risk group, which means the elimination of a considerable proportion of colonoscopies of early surveillance. Finally, clear recommendations are given on the absence of need for follow-up in the low risk group, for which the European guidelines maintained some ambiguity.


Asunto(s)
Neoplasias del Colon/diagnóstico , Pólipos del Colon/cirugía , Colonoscopía/normas , Neoplasias Colorrectales/cirugía , Vigilancia de la Población , Guías de Práctica Clínica como Asunto , Algoritmos , Pólipos del Colon/patología , Progresión de la Enfermedad , Humanos , Riesgo
9.
Gastroenterol Hepatol ; 41(9): 585-596, 2018 Nov.
Artículo en Inglés, Español | MEDLINE | ID: mdl-30245076

RESUMEN

This document updates the recommendations made by the Spanish Society of Family and Community Medicine and the Spanish Association of Gastroenterology for the diagnosis and prevention of colorectal cancer (CRC). In order to evaluate the quality of the evidence and determine the recommendation levels of the interventions, we used the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) methodology. This document establishes optimal delay intervals based on symptoms and the faecal immunochemical test (FIT) and recommends reducing the barriers for diagnostic confirmation in symptomatic subjects. With regard to CRC screening in the average-risk population, we propose strategies to achieve the universal implementation of organised CRC screening programmes based on biennial FIT and to increase the participation of the target population, including the involvement of Primary Healthcare. This Clinical Practice Guideline recommends universal screening for Lynch syndrome with mismatch repair proteins immunohistochemistry or microsatellite instability in incident CRCs and the use of gene panels in patients with adenomatous polyposis. It also updates the strategies to reduce the incidence and mortality of both CRC and other tumours associated with hereditary syndromes. Regarding non-hereditary familial CRC and surveillance after resection of adenomas, serrated lesions or CRC, we established the recommendations based on the attributable risk and the risk reduction of the proposed intervention. Finally, the document includes recommendations regarding surveillance intervals in inflammatory bowel disease and the attitude towards dysplasia.


Asunto(s)
Adenocarcinoma/prevención & control , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/prevención & control , Adenocarcinoma/diagnóstico , Adenocarcinoma/epidemiología , Poliposis Adenomatosa del Colon , Quimioprevención , Colectomía , Colonoscopía , Neoplasias Colorrectales/epidemiología , Dieta , Detección Precoz del Cáncer/normas , Humanos , Enfermedades Inflamatorias del Intestino , Estilo de Vida , Síndromes Neoplásicos Hereditarios/diagnóstico , Sangre Oculta , Lesiones Precancerosas/diagnóstico , Lesiones Precancerosas/cirugía , Factores de Riesgo
10.
Aten Primaria ; 50 Suppl 2: 51-56, 2018 11.
Artículo en Español | MEDLINE | ID: mdl-30268494

RESUMEN

Overdiagnosis of cancer is the detection of asymptomatic cancers that do not grow or they are growing with such slowness, that they would never have caused medical problems in the patient during the course of their life. Often they are tumours that are detected through population screenings but also in the clinical context due to incidental findings from image tests with advanced technology. Some of these tumours could even disappear spontaneously without treatment. The patient may die as a result of another disease before the cancer has caused symptoms. For that reason, the diagnosis of these tumours is an important cause of over-treatment, which can include serious risks and toxicity. Although overdiagnosis can occur in any disease, it is more relevant in the case of cancer.


Asunto(s)
Enfermedades Asintomáticas , Uso Excesivo de los Servicios de Salud , Neoplasias/diagnóstico , Adenocarcinoma/diagnóstico , Neoplasias de la Mama/diagnóstico , Carcinoma Ductal de Mama/diagnóstico , Femenino , Humanos , Hallazgos Incidentales , Masculino , Clasificación del Tumor , Regresión Neoplásica Espontánea , Neoplasias de la Próstata/diagnóstico , Neoplasias de la Próstata/patología , Cáncer Papilar Tiroideo/diagnóstico , Neoplasias de la Tiroides/diagnóstico , Espera Vigilante
11.
Scand J Prim Health Care ; 35(1): 27-34, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28277044

RESUMEN

OBJECTIVE: European cancer survival rates vary widely. System factors, including whether or not primary care physicians (PCPs) are gatekeepers, may account for some of these differences. This study explores where patients who may have cancer are likely to present for medical care in different European countries, and how probability of presentation to a primary care clinician correlates with cancer survival rates. DESIGN: Seventy-eight PCPs in a range of European countries assessed four vignettes representing patients who might have cancer, and consensus groups agreed how likely those patients were to present to different clinicians in their own countries. These data were compared with national cancer survival rates. SETTING: A total of 14 countries. SUBJECTS: Consensus groups of PCPs. MAIN OUTCOME MEASURES: Probability of initial presentation to a PCP for four clinical vignettes. RESULTS: There was no significant correlation between overall national 1-year relative cancer survival rates and the probability of initial presentation to a PCP (r = -0.16, 95% CI -0.39 to 0.08). Within that there was large variation depending on the type of cancer, with a significantly poorer lung cancer survival in countries where patients were more likely to initially consult a PCP (lung r = -0.57, 95% CI -0.83 to -0.12; ovary: r = -0.13, 95% CI -0.57 to 0.38; breast r = 0.14, 95% CI -0.36 to 0.58; bowel: r = 0.20, 95% CI -0.31 to 0.62). CONCLUSIONS: There were wide variations in the degree of gatekeeping between countries, with no simple binary model as to whether or not a country has a "PCP-as-gatekeeper" system. While there was case-by-case variation, there was no overall evidence of a link between a higher probability of initial consultation with a PCP and poorer cancer survival. KEY POINTS European cancer survival rates vary widely, and health system factors may account for some of these differences. The data from 14 European countries show a wide variation in the probability of initial presentation to a PCP. The degree to which PCPs act as gatekeepers varies considerably from country to country. There is no overall evidence of a link between a higher probability of initial presentation to a PCP and poorer cancer survival.


Asunto(s)
Control de Acceso , Neoplasias/mortalidad , Médicos de Atención Primaria , Pautas de la Práctica en Medicina , Atención Primaria de Salud , Actitud del Personal de Salud , Neoplasias de la Mama/mortalidad , Europa (Continente) , Femenino , Humanos , Neoplasias Intestinales/mortalidad , Neoplasias Pulmonares/mortalidad , Masculino , Neoplasias Ováricas/mortalidad , Probabilidad , Derivación y Consulta , Encuestas y Cuestionarios , Análisis de Supervivencia
12.
Gastroenterol Hepatol ; 40(4): 303-316, 2017 Apr.
Artículo en Inglés, Español | MEDLINE | ID: mdl-27045854

RESUMEN

Constipation is a very common disorder that adversely affects well-being and quality of life. Evidence-based clinical practice guidelines are an essential element for proper patient management and safe, effective treatment. The aim of these guidelines is to provide health care professionals who care for patients with chronic constipation with a tool that allows them to make the best decisions about the prevention, diagnosis and treatment of constipation. The methodology used to draw up these guidelines is described in the Part 1. In this article we will discuss the recommendations for the diagnostic and therapeutic management of constipation.


Asunto(s)
Estreñimiento/diagnóstico , Estreñimiento/terapia , Adulto , Árboles de Decisión , Humanos , Guías de Práctica Clínica como Asunto
13.
Gastroenterol Hepatol ; 40(3): 132-141, 2017 Mar.
Artículo en Inglés, Español | MEDLINE | ID: mdl-27048918

RESUMEN

Clinical practice guidelines for the management of constipation in adults aim to generate recommendations on the optimal approach to chronic constipation in the primary care and specialized outpatient setting. Their main objective is to provide healthcare professionals who care for patients with chronic constipation with a tool that allows them to make the best decisions about the prevention, diagnosis and treatment of this condition. They are intended for family physicians, primary care and specialist nurses, gastroenterologists and other health professionals involved in the treatment of these patients, as well as patients themselves. The guidelines have been developed in response to the high prevalence of chronic constipation, its impact on patient quality of life and recent advances in pharmacological management. The Grading of Recommendations Assessment, Development and Evaluation Working Group (GRADE) system has been used to classify the scientific evidence and strengthen the recommendations.


Asunto(s)
Estreñimiento/diagnóstico , Estreñimiento/etiología , Adulto , Humanos , Guías de Práctica Clínica como Asunto
14.
Gynecol Endocrinol ; 32(6): 477-82, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26806546

RESUMEN

OBJECTIVES: The objective of this study is to evaluate the effects of a soy drink with a high concentration of isoflavones (ViveSoy®) on climacteric symptoms. METHODS: An open-label, controlled, crossover clinical trial was conducted in 147 peri- and postmenopausal women. Eligible women were recruited from 13 Spanish health centers and randomly assigned to one of the two sequence groups (control or ViveSoy®, 500 mL per day, 15 g of protein and 50 mg of isoflavones). Each intervention phase lasted for 12 weeks with a 6-week washout period. Changes on the Menopause Rating Scale and quality of life questionnaires, as well as lipid profile, cardiovascular risk and carbohydrate and bone metabolism were assessed. Statistical analysis was performed using a mixed-effects model. RESULTS: A sample of 147 female volunteers was recruited of which 90 were evaluable. In both sequence groups, adherence to the intervention was high. Regular consumption of ViveSoy® reduced climacteric symptoms by 20.4% (p = 0.001) and symptoms in the urogenital domain by 21.3% (p < 0.05). It also improved health-related quality life by 18.1%, as per the MRS questionnaire (p <0.05). CONCLUSION: Regular consumption of ViveSoy® improves both the somatic and urogenital domain symptoms of menopause, as well as health-related quality of life in peri- and postmenopausal women.


Asunto(s)
Isoflavonas/farmacología , Menopausia/efectos de los fármacos , Leche de Soja/farmacología , Estudios Cruzados , Femenino , Humanos , Persona de Mediana Edad , Proteínas de Soja/farmacología , Resultado del Tratamiento
16.
Aten Primaria ; 47(1): 48-55, 2015 Jan.
Artículo en Español | MEDLINE | ID: mdl-24684818

RESUMEN

Clinical practice guidelines (CPG) provide recommendations on the benefits and harms of different healthcare interventions. Proper CPG development and implementation can potentially reduce variability in clinical practice while improving its quality and safety. The GRADE system is used to assess the quality of evidence and to grade the strength of recommendations in the context of the development of CPGs, systematic reviews or health technology assessments. The aim of this article is to describe the main characteristics of the GRADE system through relevant examples in the context of primary care.


Asunto(s)
Guías de Práctica Clínica como Asunto/normas , Medicina Clínica , Medicina Basada en la Evidencia , Humanos
17.
Aten Primaria ; 46(4): 179-87, 2014 Apr.
Artículo en Español | MEDLINE | ID: mdl-24262284

RESUMEN

OBJECTIVE: To describe the relationship between individual or combined prognostic factors in the multidimensional classifications (BODE and ADO), and health-related quality of life (HRQOL) in patients with chronic obstructive pulmonary disease (COPD). DESIGN: Cross-sectional descriptive study. SETTING: Primary care. PARTICIPANTS: Systematic random sample of 102 patients diagnosed with COPD, excluding those patients with acute exacerbation, dementia, terminal illness or those who receive home care. MAIN MEASUREMENTS: Demographics variables, smoking habits, body mass index and number of exacerbations. Comorbidity. Degree of dyspnea. Respiratory function tests. Exercise capacity. The BODE index and the ADO index. The EuroQol-5D questionnaire (EQ-5D), and visual analogue scale (VAS). RESULTS: EQ-5D: mobility: 43.9%; personal care: 13.3%; daily-life activities: 29.6%; pain/discomfort: 55.1%; anxiety/depression: 37.8%, and 34.7% VAS ≤ 60%. Exacerbations: Mobility, OR: 1.85 (95%CI: 1.08-3.20); personal care, OR: 2.12 (95%CI: 1.3-4.76); daily-life activities, OR: 2.35 (95%CI: 1.17-4.71); VAS, regression coefficient: -3.50 (95%CI: 6.31- -0.70). Dyspnea: mobility, OR: 4.47 (95%CI: 1.39-14.42); daily-life activities, OR: 7.71 (95%CI: 2.03-12.34); VAS, regression coefficient: -7.15 (95%CI: 11.71- -2.59). BODE: mobility, OR: 1.53 (95%CI: 1.15-2.02); personal care, OR: 2.08 (95%CI: 1.40-3.11); daily-life activities, OR: 1.97 (95%CI: 1.38-2.80); VAS, regression coefficient: -3.96 (95%CI: -5.51- -2.42). ADO: mobility, OR: 2.42 (95%CI: 1.39-4.20); personal care, OR: 3.21 (95%CI: 1.67-6.18); daily-life activities, OR: 3.17 (95%CI: 1.69-5.93); VAS, regression coefficient: -3.53 (95%CI: -5.57- -1.49). CONCLUSIONS: The BODE index and the ADO index showed a significant association with HRQOL. Exacerbations and dyspnea were the best individual factors related to HRQoL.


Asunto(s)
Enfermedad Pulmonar Obstructiva Crónica , Calidad de Vida , Adulto , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Enfermedad Pulmonar Obstructiva Crónica/clasificación , Enfermedad Pulmonar Obstructiva Crónica/complicaciones
18.
Res Sq ; 2024 Feb 05.
Artículo en Inglés | MEDLINE | ID: mdl-38405932

RESUMEN

Post-pregnancy breast cancer often carries a poor prognosis, posing a major clinical challenge. The increasing trend of later-life pregnancies exacerbates this risk, highlighting the need for effective chemoprevention strategies. Current options, limited to selective estrogen receptor modulators, aromatase inhibitors, or surgical procedures, offer limited efficacy and considerable side effects. Here, we report that cabergoline, a dopaminergic agonist, reduces the risk of breast cancer post-pregnancy in a Brca1/P53-deficient mouse model, with implications for human breast cancer prevention. We show that a single dose of cabergoline administered post-pregnancy significantly delayed the onset and reduced the incidence of breast cancer in Brca1/P53-deficient mice. Histological analysis revealed a notable acceleration in post-lactational involution over the short term, characterized by increased apoptosis and altered gene expression related to ion transport. Over the long term, histological changes in the mammary gland included a reduction in the ductal component, decreased epithelial proliferation, and a lower presence of recombinant Brca1/P53 target cells, which are precursors of tumors. These changes serve as indicators of reduced breast cancer susceptibility. Additionally, RNA sequencing identified gene expression alterations associated with decreased proliferation and mammary gland branching. Our findings highlight a mechanism wherein cabergoline enhances the protective effect of pregnancy against breast cancer by potentiating postlactational involution. Notably, a retrospective cohort study in women demonstrated a markedly lower incidence of post-pregnancy breast cancer in those treated with cabergoline compared to a control group. Our work underscores the importance of enhancing postlactational involution as a strategy for breast cancer prevention, and identifies cabergoline as a promising, low-risk option in breast cancer chemoprevention. This strategy has the potential to revolutionize breast cancer prevention approaches, particularly for women at increased risk due to genetic factors or delayed childbirth, and has wider implications beyond hereditary breast cancer cases.

20.
BJGP Open ; 7(4)2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37380218

RESUMEN

BACKGROUND: While primary care physicians (PCPs) play a key role in cancer detection, they can find cancer diagnosis challenging, and some patients have considerable delays between presentation and onward referral. AIM: To explore European PCPs' experiences and views on cases where they considered that they had been slow to think of, or act on, a possible cancer diagnosis. DESIGN & SETTING: A multicentre European qualitative study, based on an online survey with open-ended questions, asking PCPs for their narratives about cases when they had missed a diagnosis of cancer. METHOD: Using maximum variation sampling, PCPs in 23 European countries were asked to describe what happened in a case where they were slow to think of a cancer diagnosis, and for their views on why it happened. Thematic analysis was used to analyse the data. RESULTS: A total of 158 PCPs completed the questionnaire. The main themes were as follows: patients' descriptions did not suggest cancer; distracting factors reduced PCPs' cancer suspicions; patients' hesitancy delayed the diagnosis; system factors not facilitating timely diagnosis; PCPs felt that they had acted wrongly; and problems with communicating adequately. CONCLUSION: The study identified six overarching themes that need to be addressed. Doing so should reduce morbidity and mortality in the small proportion of patients who have a significant, avoidable delay in their cancer diagnosis. The 'Swiss cheese' model of accident causation showed how the themes related to each other.

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