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1.
Geburtshilfe Frauenheilkd ; 82(9): 932-940, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-36110892

RESUMEN

Introduction To date, the optimal axillary staging procedure for initially node-positive breast carcinoma patients after neoadjuvant chemotherapy (NACT) has been unclear. The aim of the AXSANA study is to prospectively compare different surgical staging techniques with respect to the oncological outcome and quality of life for the patients. Little is known about current clinical practice in Germany. Material and Methods In this paper we analyzed data from patients enrolled in the AXSANA study at German study sites from June 2020 to March 2022. Results During the period under investigation, 1135 patients were recruited at 143 study sites. More than three suspicious lymph nodes were initially found in 22% of patients. The target lymph node (TLN) was marked in 64% of cases. This was done with clips/coils in 83% of patients, with magnetic seeds or carbon suspension in 8% each, and with a radar marker in 1% of patients. After NACT, targeted axillary dissection (TAD) or axillary lymphadenectomy (ALND) were each planned in 48% of patients, and sentinel lymph node biopsy alone (SLNB) in 2%. Clinically, the nodal status after NACT was found to be unremarkable in 65% of cases. Histological lymph node status was correctly assessed by palpation in 65% of patients and by sonography in 69% of patients. Conclusion At the German AXSANA study sites, TAD and ALND are currently used as the most common surgical staging procedures after NACT in initially node-positive breast cancer patients. The TLN is marked with various markers prior to NACT. Given the inadequate accuracy of clinical assessment of axillary lymph node status after NACT, it should be questioned whether axillary dissection after NACT should be performed based on clinical assessment of nodal status alone.

2.
Geburtshilfe Frauenheilkd ; 82(2): 226-234, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35169390

RESUMEN

Purpose Detection of SARS-CoV-2-infected pregnant women admitted to maternity units during a pandemic is crucial. In addition to the fact that pregnancy is a risk factor for severe COVID-19 and that medical surveillance has to be adjusted in infected women and their offspring, knowledge about infection status can provide the opportunity to protect other patients and healthcare workers against virus transmission. The aim of this prospective observational study was to determine the prevalence of SARS-CoV-2 infection among pregnant women in the hospital setting. Material and Methods All eligible pregnant women admitted to the nine participating hospitals in Franconia, Germany, from 2 June 2020 to 24 January 2021 were included. COVID-19-related symptoms, secondary diseases and pregnancy abnormalities were documented. SARS-CoV-2 RNA was detected by RT-PCR from nasopharyngeal swabs. The prevalence of acute SARS-CoV-2 infection was estimated by correcting the positive rate using the Rogan-Gladen method. The risk of infection for healthcare workers during delivery was estimated using a risk calculator. Results Of 2414 recruited pregnant women, six were newly diagnosed RT-PCR positive for SARS-CoV-2, which yielded a prevalence of SARS-CoV-2 infection of 0.26% (95% CI, 0.10 - 0.57%). Combining active room ventilation and wearing FFP2 masks showed an estimated reduction of risk of infection for healthcare workers in the delivery room to < 1%. Conclusions The prevalence of newly diagnosed SARS-CoV-2 infection during pregnancy in this study is low. Nevertheless, a systematic screening in maternity units during pandemic situations is important to adjust hygienic and medical management. An adequate hygienic setting can minimise the calculated infection risk for medical healthcare workers during patients' labour.

3.
Artículo en Inglés | MEDLINE | ID: mdl-32042437

RESUMEN

BACKGROUND: Patients with metastatic breast cancer (MBC) are treated with a palliative approach with focus on controlling for disease symptoms and maintaining high quality of life. Information on individual needs of patients and their relatives as well as on treatment patterns in clinical routine care for this specific patient group are lacking or are not routinely documented in established Cancer Registries. Thus, we developed a registry concept specifically adapted for these incurable patients comprising primary and secondary data as well as mobile-health (m-health) data. METHODS: The concept for patient-centered "Breast cancer care for patients with metastatic disease" (BRE-4-MED) registry was developed and piloted exemplarily in the region of Main-Franconia, a mainly rural region in Germany comprising about 1.3 M inhabitants. The registry concept includes data on diagnosis, therapy, progression, patient-reported outcome measures (PROMs), and needs of family members from several sources of information including routine data from established Cancer Registries in different federal states, treating physicians in hospital as well as in outpatient settings, patients with metastatic breast cancer and their family members. Linkage with routine cancer registry data was performed to collect secondary data on diagnosis, therapy, and progression. Paper and online-based questionnaires were used to assess PROMs. A dedicated mobile application software (APP) was developed to monitor needs, progression, and therapy change of individual patients. Patient's acceptance and feasibility of data collection in clinical routine was assessed within a proof-of-concept study. RESULTS: The concept for the BRE-4-MED registry was developed and piloted between September 2017 and May 2018. In total n = 31 patients were included in the pilot study, n = 22 patients were followed up after 1 month. Record linkage with the Cancer Registries of Bavaria and Baden-Württemberg demonstrated to be feasible. The voluntary APP/online questionnaire was used by n = 7 participants. The feasibility of the registry concept in clinical routine was positively evaluated by the participating hospitals. CONCLUSION: The concept of the BRE-4-MED registry provides evidence that combinatorial evaluation of PROMs, needs of family members, and raising clinical parameters from primary and secondary data sources as well as m-health applications are feasible and accepted in an incurable cancer collective.

4.
Eur J Med Res ; 24(1): 32, 2019 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-31521205

RESUMEN

BACKGROUND: Growing demand for risk-reducing surgery in individuals with inherited susceptibility to cancer leads to the question whether these procedures are cost effective for the executing hospitals. This study compared the clinical costs for bilateral risk-reducing mastectomy (BRRM) with and without different types of reconstruction, risk-reducing salpingo-oophorectomy (RRSO), and their combinations with corresponding reimbursements in the statutory health-care system in Germany. PATIENTS AND METHODS: Real total costs of care for BRRM with and without reconstruction, RRSO, and their combinations were calculated as the sum of all personnel and technical costs. These costs calculated in a German University hospital were compared with the sum of all reimbursements in the German DRG-based health-care system. RESULTS: While sole RRSO, BRRM without reconstruction, and BRRM with secondary DIEP (deep inferior epigastric perforator)-reconstruction still result in a small benefit, we even found shortfalls for the hospital with all other prophylactic operations under consideration. The calculated deficits were especially high for BRRM with implant-based breast reconstruction and for combined operations when the risk reduction is achieved with a minimum of separate operations. CONCLUSIONS: Risk-reducing surgery in BRCA-mutation carriers is frequently not cost-covering for the executing hospitals in the German health-care system. Thus, appropriate concepts are required to ensure a nationwide care.


Asunto(s)
Neoplasias de la Mama/economía , Análisis Costo-Beneficio , Mastectomía/economía , Conducta de Reducción del Riesgo , Salpingooforectomía/economía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/cirugía , Femenino , Estudios de Seguimiento , Humanos , Mastectomía/métodos , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Salpingooforectomía/métodos , Adulto Joven
5.
Sci Rep ; 8(1): 11584, 2018 08 02.
Artículo en Inglés | MEDLINE | ID: mdl-30072748

RESUMEN

Breast cancer is a heterogeneous disease with distinct molecular subtypes including the aggressive subtype triple-negative breast cancer (TNBC). We compared blood-borne miRNA signatures of early-stage basal-like (cytokeratin-CK5-positive) TNBC patients to age-matched controls. The miRNAs of TNBC patients were assessed prior to and following platinum-based neoadjuvant chemotherapy (NCT). After an exploratory genome-wide study on 21 cases and 21 controls using microarrays, the identified signatures were verified independently in two laboratories on the same and a new cohort by RT-qPCR. We differentiated the blood of TNBC patients before NCT from controls with 84% sensitivity. The most significant miRNA for this diagnostic classification was miR-126-5p (two tailed t-test p-value of 1.4 × 10-5). Validation confirmed the microarray results for all tested miRNAs. Comparing cancer patients prior to and post NCT highlighted 321 significant miRNAs (among them miR-34a, p-value of 1.2 × 10-23). Our results also suggest that changes in miRNA expression during NCT may have predictive potential to predict pathological complete response (pCR). In conclusion we report that miRNA expression measured from blood facilitates early and minimally-invasive diagnosis of basal-like TNBC. We also demonstrate that NCT has a significant influence on miRNA expression. Finally, we show that blood-borne miRNA profiles monitored over time have potential to predict pCR.


Asunto(s)
Biomarcadores de Tumor/sangre , MicroARNs , Terapia Neoadyuvante , ARN Neoplásico/sangre , Neoplasias de la Mama Triple Negativas , Biopsia con Aguja , Detección Precoz del Cáncer , Femenino , Estudios de Seguimiento , Humanos , Metabolómica , MicroARNs/genética , MicroARNs/metabolismo , Persona de Mediana Edad , Análisis de Secuencia por Matrices de Oligonucleótidos , Estudios Prospectivos , Reacción en Cadena en Tiempo Real de la Polimerasa , Neoplasias de la Mama Triple Negativas/sangre , Neoplasias de la Mama Triple Negativas/diagnóstico , Neoplasias de la Mama Triple Negativas/patología , Neoplasias de la Mama Triple Negativas/terapia
6.
Breast Cancer Res Treat ; 171(1): 85-94, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-29725888

RESUMEN

PURPOSE: BRCA1/2 mutations influence the molecular characteristics and the effects of systemic treatment of breast cancer. This study investigates the impact of germline BRCA1/2 mutations on pathological complete response and prognosis in patients receiving neoadjuvant systemic chemotherapy. METHODS: Breast cancer patients were tested for a BRCA1/2 mutation in clinical routine work and were treated with anthracycline-based or platinum-based neoadjuvant chemotherapy between 1997 and 2015. These patients were identified in the tumor registry of the Breast Center of the University of Erlangen (Germany). Logistic regression and Cox regression analyses were performed to investigate the associations between BRCA1/2 mutation status, pathological complete response, disease-free survival, and overall survival. RESULTS: Among 355 patients, 59 had a mutation in BRCA1 or in BRCA2 (16.6%), 43 in BRCA1 (12.1%), and 16 in BRCA2 (4.5%). Pathological complete response defined as "ypT0; ypN0" was observed in 54.3% of BRCA1/2 mutation carriers, but only in 22.6% of non-carriers. The adjusted odds ratio was 2.48 (95% CI 1.26-4.91) for BRCA1/2 carriers versus non-carriers. Patients who achieved a pathological complete response had better disease-free survival and overall survival rates compared with those who did not achieve a pathological complete response, regardless of BRCA1/2 mutation status. CONCLUSIONS: BRCA1/2 mutation status leads to better responses to neoadjuvant chemotherapy in breast cancer. Pathological complete response is the main predictor of disease-free survival and overall survival, independently of BRCA1/2 mutation status.


Asunto(s)
Biomarcadores de Tumor , Neoplasias de la Mama/genética , Neoplasias de la Mama/patología , Genes BRCA1 , Genes BRCA2 , Mutación , Adulto , Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/terapia , Terapia Combinada , Análisis Mutacional de ADN , Femenino , Humanos , Estimación de Kaplan-Meier , Persona de Mediana Edad , Terapia Neoadyuvante , Metástasis de la Neoplasia , Estadificación de Neoplasias , Pronóstico , Adulto Joven
7.
Geburtshilfe Frauenheilkd ; 77(8): 879-886, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28845052

RESUMEN

INTRODUCTION: The care of patients with breast cancer is extremely complex and requires interdisciplinary care in certified facilities. These specialized facilities provide numerous services without being correspondingly remunerated. The question whether breast cancer surgery should be performed in an outpatient setting to reduce costs is increasingly being debated. This study compares inpatient surgical treatment with a model of the same surgery performed on an outpatient basis to examine the potential financial impact. MATERIAL AND METHODS: A theoretical model was developed and the DRG fees for surgical interventions to treat primary breast cancer were calculated. A theoretical 1-day DRG was then calculated to permit comparisons with outpatient procedures. The costs of outpatient surgery were calculated based on the remuneration rates of the AOP (Outpatient Surgery) Contract and the EBM (Uniform Assessment Scale) and compared to the costs of the 1-day DRG. RESULTS: The DRG fee for both breast-conserving surgery and mastectomy is higher than the fee paid in the context of the EBM system, although the same procedures were carried out in both systems. If a hospital were to carry out breast-conserving surgery as an outpatient procedure, the fee would be € 1313.81; depending on the type of surgery, the hospital would therefore only receive between 39.20% and 52.82% of the DRG fee. This was the case even for a 1-day treatment. Compared to the real DRG fees the difference would be even more striking. CONCLUSION: Carrying out breast cancer surgery as an outpatient procedure would result in a significant shortfall of revenues. Additional services from certified centers, such as the interdisciplinary planning of treatment, psycho-oncological and social-medical care with the involvement of relatives, detailed documentation, etc., which are currently provided without surcharge or adequate remuneration, could no longer be maintained. The quality of processes and excellent results which have been achieved and ultimately the care given by certified facilities would be significantly at risk.

8.
Heart Vessels ; 32(11): 1304-1313, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28567553

RESUMEN

Osteoprotegerin (OPG) and receptor activator of nuclear factor-κB ligand (RANKL) are regulators of bone remodeling, but are also considered to play important roles in coronary artery disease (CAD). This study evaluated potential associations of soluble (s) RANKL and OPG with atherosclerosis-relevant cytokines. Blood was collected from 414 individuals who presented to our hospital with intermediate likelihood for CAD for further examination. Plasma concentrations of total sRANKL, OPG, and 20 cytokines were measured using sandwich-type enzyme-linked immunoassays (ELISAs; OPG and sRANKL) and Luminex laser-based fluorescence analysis and correlated with each other. The plasma levels of interferon-γ (IFN-γ) and the T-helper cell 2 cytokines interleukin-4 (IL-4) and IL-13 showed a positive correlation with sRANKL. The association with sRANKL levels was negative for IFN-γ-induced protein-10 (IP-10) and monocyte chemotactic protein-1 (MCP-1). The strongest independent association with sRANKL in multivariable analyses was found for IFN-γ (positive) and IP-10 (negative), while IL-13 showed a positive and independent association with OPG plasma levels. OPG and sRANKL plasma levels correlate strongly and independently with specific circulating atherosclerosis-related cytokines in patients with intermediate cardiovascular risk.


Asunto(s)
Aterosclerosis/sangre , Enfermedad de la Arteria Coronaria/sangre , Citocinas/sangre , Osteoprotegerina/sangre , Ligando RANK/sangre , Medición de Riesgo , Adulto , Anciano , Anciano de 80 o más Años , Aterosclerosis/epidemiología , Biomarcadores/sangre , Enfermedad de la Arteria Coronaria/epidemiología , Ensayo de Inmunoadsorción Enzimática , Femenino , Alemania/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Morbilidad/tendencias , Factores de Riesgo , Adulto Joven
9.
Breast ; 32: 186-191, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28214786

RESUMEN

OBJECTIVES: Risk-reducing surgeries are a feasible option for mitigating the risk in individuals with inherited susceptibility to cancer, but are the procedures cost-effective in the current health-care system in Germany? This study compared the health-care costs for bilateral risk-reducing mastectomy (BRRM) and risk-reducing (bilateral) salpingo-oophorectomy (RRSO) with cancer treatment costs that could potentially be prevented. PATIENTS AND METHODS: The analysis is based on interdisciplinary consultations with individuals with a high familial risk for breast and ovarian cancer at the University Breast Center for Franconia (Germany) between 2009 and 2013 (370 consultations; 44 patients with BRCA1 mutations and 26 with BRCA2 mutations). Health-care costs for risk-reducing surgeries in BRCA mutation carriers were calculated as reimbursements in the German diagnosis-related groups (DRG) hospital pricing system. These costs for the health-care system were compared with the potential cancer treatment costs that could possibly be prevented by risk-reducing surgeries. RESULTS: Long-term health-care costs can be reduced by risk-reducing surgeries after genetic testing in BRCA mutation carriers. The health-care system in Germany would have saved € 136,295 if BRRM had been performed and € 791,653 if RRSO had been performed before the development of cancer in only 50% of the 70 mutation carriers seen in our center. Moreover, in patients with combined RRSO and BRRM (without breast reconstruction), one further life-year for a 40-year-old BRCA mutation carrier would cost € 2,183. CONCLUSION: Intensive care, including risk-reducing surgeries in BRCA mutation carriers, is cost-effective from the point of view of the health-care system in Germany.


Asunto(s)
Grupos Diagnósticos Relacionados/economía , Costos de la Atención en Salud , Síndrome de Cáncer de Mama y Ovario Hereditario/prevención & control , Ovariectomía/economía , Mastectomía Profiláctica/economía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/economía , Neoplasias de la Mama/prevención & control , Análisis Costo-Beneficio , Femenino , Predisposición Genética a la Enfermedad , Alemania , Síndrome de Cáncer de Mama y Ovario Hereditario/economía , Humanos , Persona de Mediana Edad , Neoplasias Ováricas/economía , Neoplasias Ováricas/prevención & control , Ovariectomía/métodos , Procedimientos Quirúrgicos Profilácticos/economía , Estudios Retrospectivos , Conducta de Reducción del Riesgo , Ubiquitina-Proteína Ligasas/genética , Adulto Joven
10.
J Surg Oncol ; 114(5): 613-618, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27378217

RESUMEN

BACKGROUND AND OBJECTIVES: Chylous ascites, an accumulation of milky-white lymph fluid in the peritoneal cavity, is a rare complication following retroperitoneal lymphadenectomy. This study evaluated the appearance and management of chylous ascites following lymphadenectomy for gynecological malignancies. METHODS: A total of 931 patients who underwent lymphadenectomy for gynecological malignancies at Erlangen University Hospital between 2002 and 2013 were reviewed retrospectively. RESULTS: Chylous ascites occurred postoperatively in 28 of the 931 patients (3.0%). All patients with chylous ascites had undergone combined systematic para-aortic and pelvic lymphadenectomy (SAPL). Patients with chylous ascites had a larger mean number of lymph nodes removed (51.9 vs. 40.0, P = 0.002) and the proportion of laparoscopic SAPLs was significantly higher (20/28; 71.4%) in comparison with open surgery (8/28; 28.6%) (P < 0.0001). Additional parameters, such as the number of positive lymph nodes, were not significantly associated with the occurrence of chylous ascites. Conservative management was sufficient to resolve chylous ascites in all observed cases, with a mean time to resolution of 8 days. CONCLUSIONS: Postoperative chylous ascites was more frequently observed in patients with laparoscopic SAPL in comparison with open SAPL and was strongly associated with a larger mean number of removed lymph nodes. J. Surg. Oncol. 2016;114:613-618. © 2016 Wiley Periodicals, Inc.


Asunto(s)
Carcinoma/cirugía , Ascitis Quilosa/etiología , Neoplasias de los Genitales Femeninos/cirugía , Laparoscopía/efectos adversos , Escisión del Ganglio Linfático/efectos adversos , Complicaciones Posoperatorias/etiología , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma/patología , Femenino , Neoplasias de los Genitales Femeninos/patología , Humanos , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Adulto Joven
11.
Anticancer Res ; 36(1): 419-25, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26722076

RESUMEN

BACKGROUND/AIM: The aim of this single-arm, prospective, multicenter phase II trial (MiX) was to increase treatment options for women with metastatic breast cancer pretreated with anthracycline and taxane by evaluation of the efficacy and toxicity of the combination of mitomycin C and capecitabine. PATIENTS AND METHODS: From 03/2004 to 06/2007, a total of 39 patients were recruited and received mitomycin C in combination with capecitabine. The primary end-point was to determinate the tumor response according to Response Evaluation Criteria in Solid Tumors and the rate of toxicities (safety). The secondary study objective was the evaluation of the time to progression (i.e. efficacy). RESULTS: The median time to progression was 9.3 months (95% confidence interval=6.6-12.0 months) and the median survival was 12.8 months (95% confidence interval=6.8-18.8 months). Most treatment-related adverse events were mild to moderate. CONCLUSION: Mitomycin C and capecitabine is a good taxane-free option in patients with metastatic breast cancer previously treated with anthracycline.


Asunto(s)
Antibióticos Antineoplásicos/uso terapéutico , Antimetabolitos Antineoplásicos/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Capecitabina/uso terapéutico , Mitomicina/uso terapéutico , Antraciclinas/uso terapéutico , Neoplasias de la Mama/patología , Femenino , Humanos , Persona de Mediana Edad , Metástasis de la Neoplasia
12.
Arch Gynecol Obstet ; 294(2): 343-51, 2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-26711836

RESUMEN

PURPOSE: There is low evidence regarding the optimal treatment in patients with uterine sarcomas and malignant mixed Mullerian tumors (MMMTs). This study provides an overview of experience at our center with patients diagnosed with uterine sarcoma and MMMT, in relation to the clinical management and outcome. METHODS: The medical records for 143 patients with low-grade endometrial stromal sarcoma (ESS), leiomyosarcoma (LMS), and high-grade (undifferentiated) endometrial sarcoma (UES) and MMMT were reviewed. All available clinical and pathological data were collected and analyzed. Putative prognostic factors were entered into a multivariate analysis using a Cox proportional hazards ratio model, and survival data were calculated. RESULTS: The 5-year overall survival rates were significantly different between patients with ESS, LMS, and UES and MMMT (86 vs. 40 vs. 57 vs. 45 %; P < 0.001). The multivariate analysis showed that the patients' age, higher FIGO stage (III-IV), a history of smoking, prior pelvic radiation, diabetes, and residual tumor after surgery were associated with a poorer overall survival. Histological subtypes of LMS (HR 4.68; 95 % CI 1.35-16.17), UES (HR 1.21; 95 % CI 0.26-5.77) and MMMT (HR 1.63; 95 % CI 0.42-6.43) were also associated with a poorer overall survival than ESS (P = 0.008). Adjuvant therapies showed no associations with overall survival. CONCLUSIONS: Adjuvant therapy has so far not shown any overall survival benefit, and the focus is therefore on primary surgery. In future studies, the entities should be investigated separately in relation to prognostic factors and effective therapeutic management.


Asunto(s)
Tumores Estromáticos Endometriales/patología , Leiomiosarcoma/patología , Tumor Mulleriano Mixto/patología , Sarcoma Estromático Endometrial/patología , Neoplasias Uterinas/patología , Adulto , Anciano , Terapia Combinada , Supervivencia sin Enfermedad , Neoplasias Endometriales/mortalidad , Neoplasias Endometriales/patología , Neoplasias Endometriales/terapia , Tumores Estromáticos Endometriales/mortalidad , Tumores Estromáticos Endometriales/terapia , Femenino , Humanos , Estimación de Kaplan-Meier , Leiomiosarcoma/mortalidad , Leiomiosarcoma/terapia , Persona de Mediana Edad , Tumor Mulleriano Mixto/mortalidad , Tumor Mulleriano Mixto/terapia , Análisis Multivariante , Pronóstico , Modelos de Riesgos Proporcionales , Sarcoma/patología , Sarcoma Estromático Endometrial/mortalidad , Sarcoma Estromático Endometrial/terapia , Tasa de Supervivencia , Neoplasias Uterinas/mortalidad , Neoplasias Uterinas/cirugía
13.
Breast Care (Basel) ; 11(6): 398-404, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-28228706

RESUMEN

Two-thirds of all breast cancer patients with metastases have a hormone receptor (HR)-positive/human epidermal growth factor receptor 2 (HER2)-negative subtype. Endocrine therapy is the treatment of choice in these patients since in addition to its effectiveness it can also maintain the patients' quality of life over a longer term. However, 44-62% of postmenopausal patients with metastatic breast carcinoma have primary tamoxifen resistance. After 3-5 years, 30-40% of the patients receiving tamoxifen treatment develop secondary resistance. Understanding the way in which resistance develops is therefore essential for developing treatment approaches that can prevent or reverse endocrine resistance. The phosphatidylinositol 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) signaling pathway plays a central role here. As a result of the numerous interactions involved, complex issues arise that need to be taken into account in the development and use of therapeutic agents. In addition, this signaling pathway is the one that most frequently undergoes mutations in breast cancer. The prognostic and predictive significance of individual mutations has not yet been fully explained, but it might provide a basis for patient selection in clinical studies. Initial research results on the use of PI3K inhibitors suggest that this may be a highly promising therapeutic approach, with an acceptable side effect profile.

14.
BMC Cancer ; 15: 751, 2015 Oct 21.
Artículo en Inglés | MEDLINE | ID: mdl-26487094

RESUMEN

BACKGROUND: No screening programs are available for ovarian or endometrial cancer. One reason for this is the low incidence of the conditions, resulting in low positive predictive values for tests, which are not very specific. One way of addressing this problem might be to use risk factors to define subpopulations with a higher incidence. The aim of this study was to investigate the extent to which a medical history of endometriosis can serve as a risk factor for ovarian or endometrial cancer. METHODS: In a hospital-based case-control analysis, the cases represented patients with endometrial or ovarian cancer who were participating in studies aimed at assessing the risk for these diseases. The controls were women between the age of 40 and 85 who were invited to take part via a newspaper advertisement. A total of 289 cases and 1016 controls were included. Using logistic regression models, it was tested whether self-reported endometriosis is a predictor of case-control status in addition to age, body mass index (BMI), number of pregnancies and previous oral contraceptive (OC) use. RESULTS: Endometriosis was reported in 2.1 % of the controls (n = 21) and 4.8 % of the cases (n = 14). Endometriosis was a relevant predictor for case-control status in addition to other predictive factors (OR 2.63; 95 % CI, 1.28 to 5.41). CONCLUSION: This case-control study found that self-reported endometriosis may be a risk factor for endometrial or ovarian cancer in women between 40 and 85 years. There have been very few studies addressing this issue, and incorporating it into a clinical prediction model would require a more precise characterization of the risk factor of endometriosis.


Asunto(s)
Neoplasias Endometriales/epidemiología , Neoplasias Endometriales/etiología , Endometriosis/complicaciones , Neoplasias Ováricas/epidemiología , Neoplasias Ováricas/etiología , Adulto , Anciano , Anciano de 80 o más Años , Índice de Masa Corporal , Estudios de Casos y Controles , Femenino , Humanos , Persona de Mediana Edad , Oportunidad Relativa , Embarazo , Factores de Riesgo
15.
BMC Cancer ; 15: 587, 2015 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-26272451

RESUMEN

BACKGROUND: Medical research studies are becoming increasingly important for optimizing the prevention, diagnosis and treatment of illnesses. Participation in research studies can have many benefits for patients. In randomized and controlled clinical studies, they can receive the best possible medical care currently available. However, only a small proportion of patients nowadays are treated within the framework of medical research. The primary endpoint of this study was to discover what level of knowledge patients have about clinical studies and how they currently perceive them, in order to identify ways of optimizing the information provided about studies from the patients' point of view. METHODS: The study included 2546 patients (breast cancer 21.6%, gynecological cancer 8.3%, obstetrics 32.7%, endometriosis 7.8%, fertility treatment 3.2%, other benign gynecological illnesses 19.2%, no information for 7.2%) in the outpatient clinic (45.2%) and in the in-patient sector (54.8%) at the Department of Gynecology at Erlangen University Hospital and associated centers. In the single-center study, conducted between January 2011 and January 2012, the patients were asked about their level of knowledge regarding the background to medical research studies and the ways in which they are carried out and used. The patients were also asked how they perceived medical studies and how they thought study conditions might be optimized. The three-page questionnaire was included in the feedback sheet received by patients as part of the hospital's quality management system. RESULTS: As a whole, the group only had moderate knowledge about clinical studies. A majority of the respondents considered that studies were valuable (91.6%), but only a few were also willing to take part in them (58.4%). Knowledge and willingness to participate strongly depended on age (P < 0.001), educational level (P < 0.001) and patient group (P < 0.001). Most patients would prefer to decide about participating in studies through a discussion with their outpatient physicians. CONCLUSIONS: The information that patients have about clinical studies affects whether they participate in them. It is therefore extremely important for patients to be well informed, for their anxieties about participation to be relieved, and for the benefits of participation to be explained to them.


Asunto(s)
Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/psicología , Estudios Clínicos como Asunto/psicología , Enfermedades de los Genitales Femeninos/epidemiología , Enfermedades de los Genitales Femeninos/psicología , Conocimientos, Actitudes y Práctica en Salud , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Investigación Biomédica , Estudios Transversales , Femenino , Humanos , Persona de Mediana Edad , Encuestas y Cuestionarios , Adulto Joven
16.
PLoS One ; 10(4): e0122106, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25875093

RESUMEN

Blood-based early detection of breast cancer has recently gained novel momentum, as liquid biopsy diagnostics is a fast emerging field. In this study, we aimed to identify secreted proteins which are up-regulated both in tumour tissue and serum samples of breast cancer patients compared to normal tissue and sera. Based on two independent tissue cohorts (n = 75 and n = 229) and one serum cohort (n = 80) of human breast cancer and healthy serum samples, we characterised AGR3 as a novel potential biomarker both for breast cancer prognosis and early breast cancer detection from blood. AGR3 expression in breast tumours is significantly associated with oestrogen receptor α (P<0.001) and lower tumour grade (P<0.01). Interestingly, AGR3 protein expression correlates with unfavourable outcome in low (G1) and intermediate (G2) grade breast tumours (multivariate hazard ratio: 2.186, 95% CI: 1.008-4.740, P<0.05) indicating an independent prognostic impact. In sera analysed by ELISA technique, AGR3 protein concentration was significantly (P<0.001) elevated in samples from breast cancer patients (n = 40, mainly low stage tumours) compared to healthy controls (n = 40). To develop a suitable biomarker panel for early breast cancer detection, we measured AGR2 protein in human serum samples in parallel. The combined AGR3/AGR2 biomarker panel achieved a sensitivity of 64.5% and a specificity of 89.5% as shown by receiver operating characteristic (ROC) curve statistics. Thus our data clearly show the potential usability of AGR3 and AGR2 as biomarkers for blood-based early detection of human breast cancer.


Asunto(s)
Biomarcadores de Tumor/metabolismo , Neoplasias de la Mama/diagnóstico , Proteínas Portadoras/metabolismo , Diagnóstico Precoz , Proteínas de Neoplasias/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores de Tumor/sangre , Biomarcadores de Tumor/genética , Western Blotting , Neoplasias de la Mama/genética , Neoplasias de la Mama/metabolismo , Proteínas Portadoras/sangre , Proteínas Portadoras/genética , Estudios de Cohortes , Ensayo de Inmunoadsorción Enzimática , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Inmunohistoquímica/estadística & datos numéricos , Estimación de Kaplan-Meier , Persona de Mediana Edad , Mucoproteínas , Análisis Multivariante , Proteínas de Neoplasias/sangre , Proteínas de Neoplasias/genética , Proteínas Oncogénicas , Pronóstico , Modelos de Riesgos Proporcionales , Proteínas/metabolismo , Curva ROC , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa
17.
BMC Med ; 12: 224, 2014 Dec 03.
Artículo en Inglés | MEDLINE | ID: mdl-25465851

RESUMEN

BACKGROUND: miRNA profiles are promising biomarker candidates for a manifold of human pathologies, opening new avenues for diagnosis and prognosis. Beyond studies that describe miRNAs frequently as markers for specific traits, we asked whether a general pattern for miRNAs across many diseases exists. METHODS: We evaluated genome-wide circulating profiles of 1,049 patients suffering from 19 different cancer and non-cancer diseases as well as unaffected controls. The results were validated on 319 individuals using qRT-PCR. RESULTS: We discovered 34 miRNAs with strong disease association. Among those, we found substantially decreased levels of hsa-miR-144* and hsa-miR-20b with AUC of 0.751 (95% CI: 0.703-0.799), respectively. We also discovered a set of miRNAs, including hsa-miR-155*, as rather stable markers, offering reasonable control miRNAs for future studies. The strong downregulation of hsa-miR-144* and the less variable pattern of hsa-miR-155* has been validated in a cohort of 319 samples in three different centers. Here, breast cancer as an additional disease phenotype not included in the screening phase has been included as the 20th trait. CONCLUSIONS: Our study on 1,368 patients including 1,049 genome-wide miRNA profiles and 319 qRT-PCR validations further underscores the high potential of specific blood-borne miRNA patterns as molecular biomarkers. Importantly, we highlight 34 miRNAs that are generally dysregulated in human pathologies. Although these markers are not specific to certain diseases they may add to the diagnosis in combination with other markers, building a specific signature. Besides these dysregulated miRNAs, we propose a set of constant miRNAs that may be used as control markers.


Asunto(s)
Biomarcadores de Tumor/genética , Neoplasias de la Mama/genética , MicroARNs/genética , Neoplasias de la Mama/patología , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/genética , Neoplasias/patología , Fenotipo , Pronóstico
18.
Biomed Res Int ; 2014: 842452, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24729980

RESUMEN

The receptor activator of NF-κB (RANK) pathway is involved in bone health as well as breast cancer (BC) pathogenesis and progression. Whereas the therapeutic implication of this pathway is established for the treatment of osteoporosis and bone metastases, the application in adjuvant BC is currently investigated. As genetic variants in this pathway have been described to influence bone health, aim of this study was the prognostic relevance of genetic variants in RANK and RANKL. Single nucleotide polymorphisms in RANK(L) (rs1054016/rs1805034/rs35211496) were genotyped and analyzed with regard to bone metastasis-free survival (BMFS), disease-free survival, and overall survival for a retrospective cohort of 1251 patients. Cox proportional hazard models were built to examine the prognostic influence in addition to commonly established prognostic factors. The SNP rs1054016 seems to influence BMFS. Patients with two minor alleles had a more favorable prognosis than patients with at least one common allele (HR 0.37 (95% CI: 0.17, 0.84)), whereas other outcome parameters remained unaffected. rs1805034 and rs35211496 had no prognostic relevance. The effect of rs1054016(RANKL) adds to the evidence that the RANK pathway plays a role in BC pathogenesis and progression with respect to BMFS, emphasizing the connection between BC and bone health.


Asunto(s)
Neoplasias Óseas , Neoplasias de la Mama , Polimorfismo de Nucleótido Simple , Ligando RANK/genética , Receptor Activador del Factor Nuclear kappa-B/genética , Anciano , Neoplasias Óseas/genética , Neoplasias Óseas/mortalidad , Neoplasias Óseas/patología , Neoplasias Óseas/secundario , Neoplasias de la Mama/genética , Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/patología , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Metástasis de la Neoplasia , Estudios Retrospectivos , Tasa de Supervivencia
19.
Anticancer Res ; 34(2): 829-35, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24511019

RESUMEN

BACKGROUND AND AIMS: Cost increases in the healthcare system are leading to a need to distribute financial resources in accordance with the value of each service performed. Health-economic decision-making models can support these decisions. Due to the previous unavailability of health utilities in Germany (scored states of health as a basis for calculating quality-adjusted life-years, QALYs) for women undergoing treatment, international data are often used for such models. However, these may widely deviate from the values for a woman actually living in Germany. It is, therefore, necessary to collect and analyze health utilities in Germany. MATERIALS AND METHODS: In a questionnaire survey, health utilities were collected, along with data for a healthy control group, for 580 female patients receiving treatment in the fields of mastology and gynecological oncology using a German version of the EuroQol questionnaire (EQ-5D) and a visual analogue scale (VAS). Data were also collected for the patients' medical history, tumor disease, and treatment. RESULTS: Significant differences with regard to quality of life were measured in relation to the individual tumor entities and in comparison to the controls. Apart from the healthy control group, patients with breast or cervical carcinoma had the best quality of life. In patients with recurrent and metastatic disease, those with breast carcinoma experienced the greatest impairment of their quality of life. According to current treatment, the most important impairment of life quality occurred in patients under radiotherapy and after surgical treatment. There are significant differences from the health utilities recorded for other countries - for example, the state of health declines much more markedly in patients with metastatic disease among American women with breast carcinoma than among German women, in whom recurrent disease and a first diagnosis of metastasis were comparable. Overall, the VAS was able to distinguish more adequately than the EQ-5D questionnaire between the different situations and impairments resulting from diagnosis and therapy. CONCLUSION: Health utilities are now, for the first time, available for further health-economics analyses in the field of gynecological oncology and mastology for women living in Germany. Important differences in these utilities from those of other countries are evident.


Asunto(s)
Neoplasias de los Genitales Femeninos/terapia , Ginecología/estadística & datos numéricos , Indicadores de Salud , Oncología Médica/estadística & datos numéricos , Estudios de Casos y Controles , Análisis Costo-Beneficio , Femenino , Neoplasias de los Genitales Femeninos/economía , Neoplasias de los Genitales Femeninos/psicología , Alemania , Ginecología/economía , Costos de la Atención en Salud , Humanos , Masculino , Oncología Médica/economía , Calidad de Vida
20.
Arch Gynecol Obstet ; 290(1): 135-41, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24496514

RESUMEN

PURPOSE: As breast cancer survivors are benefiting increasingly from advanced forms of therapy, the side effects of locoregional treatment in the adjuvant setting are becoming more and more important. This article presents a new method of assessing the spatial distribution of paresthesia in breast cancer survivors after different locoregional treatments. METHODS: A structured questionnaire assessing paresthesia, with body pictograms for marking paresthesia areas, was completed by 343 breast cancer survivors. The image information was digitized, generating gray-scale summation images with numbers from 0, indicating black (100 % of the patients had paresthesia), to 255, indicating white (none had paresthesia). The resulting map visualization showed the locations of paresthesia on body pictograms. The group included patients who had undergone breast-conserving surgery (BCS) and mastectomy, and also patients who had received percutaneous and interstitial radiation. RESULTS: A total of 56.5 % of the patients stated that they had paresthesia. The paresthesia areas were distributed within the range suggested by clinical experience. Most patients stated that they had paresthesia in the upper outer quadrant and axilla. Patients who had undergone mastectomy or percutaneous radiotherapy appeared to have more paresthesia on some areas of the body surface. Patients who had undergone mastectomy indicated larger areas of paresthesia than those with BCS-4,066 pixels (px) vs. 2,275 px. Radiotherapy did not appear to influence the spatial distribution of paresthesia. CONCLUSIONS: Paresthesia is a common symptom after breast cancer treatment. This paper describes a new method of assessing this side effect to improve and individualize treatment for it in the future.


Asunto(s)
Axila , Neoplasias de la Mama/cirugía , Mastectomía/efectos adversos , Parestesia , Adulto , Anciano , Estudios Transversales , Femenino , Alemania , Humanos , Persona de Mediana Edad , Percepción , Periodo Posoperatorio , Estudios Retrospectivos , Programas Informáticos , Encuestas y Cuestionarios , Sobrevivientes/estadística & datos numéricos
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