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1.
Cancer Causes Control ; 35(2): 367-376, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37782382

RESUMO

PURPOSE: Colorectal cancer (CRC) risk is associated with modifiable lifestyle factors including smoking, physical inactivity, Western diet, and excess body weight. The impact of lifestyle factors on survival is less known. A cohort study was conducted to investigate the combined effects of a healthy lifestyle and body mass index on prognosis following CRC diagnosis. METHODS: Treatment and follow-up data were collected from the patient files of 1098 participants from the Colorectal cancer low-risk study cohort including stage I-III CRC patients. A healthy lifestyle and BMI (HL) score was computed using self-reported data on smoking status, physical activity, adherence to a Mediterranean diet pattern, and BMI, and divided into four categories ranging from least to most healthy. Survival analyses were performed to assess recurrence-free survival and overall survival across categories of exposure, using the Kaplan-Meier method and Cox proportional hazards models adjusted for age, sex, and educational level. RESULTS: Among 1098 participants with stage I-III CRC, 233 (21.2%) had an HL score of 0-1 (least healthy), 354 (32.2%) HL score of 2, 357 (32.5%) HL score of 3 and 154 (14.0) HL score 4 (most healthy). Patients with the healthiest lifestyle (HL score 4) compared to the least healthy (HL score 0-1) had an improved recurrence-free survival (HL 4 vs HL 0-1, HRadj 0.51 (95% CI 0.31-0.83) and overall survival (HL 4 vs HL 0-1, HRadj 0.52 (95% CI 0.38-0.70). CONCLUSION: Adherence to a healthy lifestyle may increase the recurrence-free and overall survival of patients with stage I-III CRC.


Assuntos
Neoplasias Colorretais , Estilo de Vida Saudável , Humanos , Índice de Massa Corporal , Estudos de Coortes , Neoplasias Colorretais/epidemiologia , Estilo de Vida , Fatores de Risco
2.
Int J Colorectal Dis ; 38(1): 197, 2023 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-37458848

RESUMO

PURPOSE: About 10 to 15% of patients with sporadic colorectal cancer display mutations in DNA mismatch repair (MMR) genes shown as microsatellite instability (MSI). Previous reports of colorectal cancer (CRC) indicate a better prognosis for patients with MSI tumors compared to patients with microsatellite stable (MSS) tumors. In this study, our aim was to investigate whether MSI is an independent prognostic factor in CRC. PATIENTS AND METHODS: Patients with stage I-III colorectal cancer and subject to curative surgery during 2002-2006 in the Swedish low-risk colorectal cancer study group cohort were eligible for inclusion. Deficient MMR (dMMR) status was analyzed by immunohistochemistry (IHC) and/or by MSI testing with polymerase chain reaction (PCR). Prognostic follow-up and treatment data were retrieved from patient records. Statistical analyses to assess MSI-status and prognosis were done using logistic regression and survival analyses using the Kaplan-Meier method and Cox regression hazards models adjusted for age, sex, stage, comorbidity, and tumor location. RESULTS: In total, 463 patients were included, MSI high tumors were present in 66 patients (14%), and the remaining 397 were MSS/MSI low. Within 6 years, distant recurrences were present in 9.1% and 20.2% (P = 0.049), and death occurred in 25.8% and 31.5% in MSI and MSS patients, respectively. There was no statistically significant difference in overall mortality (HR 0.80, 95% CI 0.46-1.38), relapse-free survival (HR 0.82, 95% CI 0.50-1.36), or cancer-specific mortality (HR 1.60, 95% CI 0.73-3.51). CONCLUSION: Despite distant metastases being less common in patients with MSI, there was no association between MSI and overall, relapse-free, or cancer-specific survival.


Assuntos
Neoplasias Colorretais , Instabilidade de Microssatélites , Humanos , Prognóstico , Suécia/epidemiologia , Recidiva Local de Neoplasia , Neoplasias Colorretais/cirurgia , Reparo de Erro de Pareamento de DNA/genética , Repetições de Microssatélites
3.
BJUI Compass ; 4(3): 361-373, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37025481

RESUMO

Objectives: The relation of serum androgens and the development of prostate cancer (PCa) is subject of debate. Lower total testosterone (TT) levels have been associated with increased PCa detection and worse pathological features after treatment. However, data from the Reduction by Dutasteride of Prostate Cancer Events (REDUCE) and Prostate Cancer Prevention (PCPT) trial groups indicate no association. The aim of this study is to investigate the association of serum androgen levels and PCa detection in a prospective screening study of men at higher genetic risk of aggressive PCa due to BRCA1/2 pathogenic variants (PVs), the IMPACT study. Methods: Men enrolled in the IMPACT study provided serum samples during regular visits. Hormonal levels were calculated using immunoassays. Free testosterone (FT) was calculated from TT and sex hormone binding globulin (SHBG) using the Sodergard mass equation. Age, body mass index (BMI), prostate-specific antigen (PSA) and hormonal concentrations were compared between genetic cohorts. We also explored associations between age and TT, SHBG, FT and PCa, in the whole subset and stratified by BRCA1/2 PVs status. Results: A total of 777 participants in the IMPACT study had TT and SHBG measurements in serum samples at annual visits, giving 3940 prospective androgen levels, from 266 BRCA1 PVs carriers, 313 BRCA2 PVs carriers and 198 non-carriers. The median number of visits per patient was 5. There was no difference in TT, SHBG and FT between carriers and non-carriers. In a univariate analysis, androgen levels were not associated with PCa. In the analysis stratified by carrier status, no significant association was found between hormonal levels and PCa in non-carriers, BRCA1 or BRCA2 PVs carriers. Conclusions: Male BRCA1/2 PVs carriers have a similar androgen profile to non-carriers. Hormonal levels were not associated with PCa in men with and without BRCA1/2 PVs. Mechanisms related to the particularly aggressive phenotype of PCa in BRCA2 PVs carriers may therefore not be linked with circulating hormonal levels.

4.
JAMA Oncol ; 8(10): 1438-1446, 2022 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-36006625

RESUMO

Importance: Breast cancer (BC) is the most common indication for fertility preservation (FP) in women of reproductive age. Procedures for FP often include hormonal stimulation, but current data are scarce regarding whether using hormonal stimulation for FP is associated with any deterioration in BC prognosis. Objective: To investigate the risk of disease-specific mortality and relapse in women who underwent FP with or without hormonal stimulation compared with women who did not at time of BC diagnosis. Design, Setting, and Participants: This Swedish nationwide prospective cohort study was conducted to assess the safety of hormonal and nonhormonal FP procedures indicated by BC in Sweden from January 1, 1994, through June 30, 2017. Women were identified from any of the regional FP programs located at Swedish university hospitals. A total of 425 women were found to have undergone FP, and 850 population comparators who had not undergone FP were sampled from regional BC registers and matched on age, calendar period of diagnosis, and region. Relapse-free survival was assessed in a subcohort of 241 women who underwent FP and 482 women who had not, with complete data. Nationwide demographic and health care registers provided data on outcome, disease- and treatment-related variables, and socioeconomic characteristics. Data analyses were performed between November 2021 and March 2022 and completed in June 2022. Main Outcomes and Measures: Relapse and disease-specific mortality after a diagnosis of BC. Results: The final study population included 1275 women (mean [SD] age, 32.9 [3.8] years) at the time of BC diagnosis. After stratification by the matching variables age, calendar period, and region, and adjustment for country of birth, education, parity at diagnosis, tumor size, number of lymph node metastases, and estrogen receptor status, disease-specific mortality was similar in women who underwent hormonal FP (adjusted hazard ratio [aHR], 0.59; 95% CI, 0.32-1.09), women who underwent nonhormonal FP (aHR, 0.51; 95% CI, 0.20-1.29), and women who were not exposed to FP (reference). In a subcohort with detailed data on relapse, adjusted rate of disease-specific mortality and relapse were also similar among the groups who underwent hormonal FP (aHR, 0.81; 95% CI, 0.49-1.37), underwent nonhormonal FP (aHR, 0.75; 95% CI, 0.35-1.62), and were not exposed to FP (reference). Conclusions and Relevance: In this cohort study, FP with or without hormonal stimulation was not associated with any increased risk of relapse or disease-specific mortality in women with BC. Results of this study provide much needed additional evidence on the safety of FP procedures in women with BC and may influence current health care practice to the benefit of young women with BC who wish to preserve their fertility.


Assuntos
Neoplasias da Mama , Preservação da Fertilidade , Humanos , Gravidez , Feminino , Adulto , Preservação da Fertilidade/efeitos adversos , Preservação da Fertilidade/métodos , Neoplasias da Mama/complicações , Estudos de Coortes , Estudos Prospectivos , Receptores de Estrogênio , Recidiva Local de Neoplasia
5.
Radiother Oncol ; 131: 229-236, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30055939

RESUMO

BACKGROUND AND PURPOSE: Patients with breast cancer receiving mastectomy in our institution are offered immediate breast reconstruction (IBR). IBR may have an impact on the optimisation of radiation therapy (RT). Therefore, we aimed to evaluate the clinical target volume (CTV) dose coverage when disregarding the dose received by the breast implant in women treated for breast cancer. Furthermore, to investigate the safety of immediate breast reconstruction (IBR) with an implant (IBR+) in terms of recurrence and survival compared to patients without an implant (IBR-). PATIENTS AND METHODS: This matched-cohort included 128 patients with IBR+ and 252 IBR- patients (controls). The potential confounding effects of tumour stage and treatment were controlled for. For IBR+ patients, the implant volume was excluded from the CTV in the RT planning images, and the RT target coverage (V95%: CTV covered by ≥the 95% isodose) was compared between the IBR+ and IBR- groups. RESULTS: A limited under dosage was observed in patients without lymph-node irradiation; the V95% mean values for the CTV subtracting the implant were 84% and 92%, for IBR+ and IBR- groups, respectively. Median follow-up duration was 5.8 years (0.1-7.5 years). In comparing IBR+ and IBR- groups, no statistically significant differences were found in the incidence of recurrence rate ratios or recurrence free survival (log-rank p = 0.142), overall survival (log-rank p = 0.096), or breast cancer specific survival (log-rank p = 0.147). CONCLUSIONS: Post-mastectomy radiation therapy and implant-based reconstruction lead to minor under dosage of the target, due to the projection of the subcutaneous tissue in the presence of the implant. However, recurrence and survival rates were equally distributed among IBR+ and IBR- patients indicating that the overall treatment protocol used in our institution is safe.


Assuntos
Implante Mamário/métodos , Neoplasias da Mama/radioterapia , Neoplasias da Mama/cirurgia , Planejamento da Radioterapia Assistida por Computador/métodos , Adulto , Implante Mamário/efeitos adversos , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/patologia , Estudos de Casos e Controles , Estudos de Coortes , Feminino , Humanos , Linfonodos/patologia , Linfonodos/efeitos da radiação , Mastectomia , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Estudos Retrospectivos
7.
Breast Cancer Res Treat ; 168(3): 655-666, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29318406

RESUMO

PURPOSE: To evaluate the sensitivity and specificity of different screening modalities in women with a family history of breast cancer. METHODS: Our blinded, prospective, comparative cohort analysis included three types of screening, mammography, ultrasound, and clinical breast examination once per year for 6 years. Eligible patients for this study were healthy women with ≥ 17% lifetime risk of breast cancer or with a mutation in BRCA1 or BRCA2. RESULTS: A total of 632 women were screened between 2002 and 2012 (each for 6 years). During the study, 30 women were diagnosed with breast cancer, with 10 of these diagnoses occurring between screening visits, and six of the 10 diagnosed women were gene carriers. The clinical presentation for the women diagnosed with breast cancer was followed until 2017. No consistent patterns for the diagnostic capacity of the different screening modalities were found, although mammography showed low sensitivity, whereas ultrasound showed better sensitivity in three of the six rounds. The specificity was high in mammography and improved in ultrasound over time. Most importantly, clinical breast examination provided no additional information toward the diagnosis of breast cancer. CONCLUSION: Neither mammography nor ultrasound performed yearly were sensitive enough as standalone modalities, although high specificity was confirmed. Our findings indicate that high risk (> 29% life time risk) individuals and gene carriers can be screened biannually, using the same protocol as used in mutation carriers. Our results also suggest that low-risk groups (< 20%) may continue to be referred to population mammography screening program, while clinical breast examination may be omitted in all risk groups, and could be optional in gene carriers.


Assuntos
Proteína BRCA1/genética , Proteína BRCA2/genética , Neoplasias da Mama/diagnóstico , Predisposição Genética para Doença , Adulto , Idoso , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/genética , Detecção Precoce de Câncer , Feminino , Heterozigoto , Humanos , Imageamento por Ressonância Magnética , Mamografia , Programas de Rastreamento , Pessoa de Meia-Idade , Mutação , Suécia/epidemiologia
8.
Breast Cancer Res Treat ; 167(3): 761-769, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29098528

RESUMO

PURPOSE: To determine if women with breast cancer that undergo fertility preservation (FP), with or without hormonal stimulation, present with an increased risk of breast cancer recurrence. METHODS: A matched cohort study on women with breast cancer attempting to ensure FP in Stockholm from 1999 to 2013 [exposed women (n = 188), age-matched unexposed controls (n = 378)] was designed using the Stockholm regional data from the Swedish National Breast Cancer Quality Register. Breast cancer relapse rates [incidence rate ratio (IRR)] and 95% confidence interval (CI) were estimated using Cox regression and adjusted for potential confounding factors. Completeness of the registry at the time of the study was close to 99%. RESULTS: Most women attempted FP by hormonal stimulation treatment (n = 148, 79%) with the objective of freezing their eggs or embryos. A smaller group elected FP methods without hormone stimulation (n = 40, 21%). Women who received hormone stimulation did not present with a higher relapse rate than unexposed control women in a model adjusted for age and calendar period of diagnosis (IRR 0.59, 95% CI 0.34-1.04). The results remained virtually unchanged after adjustment for tumor size, estrogen receptor status, affected lymph nodes, and chemotherapy treatment (IRR 0.66, 95% CI 0.37-1.17). CONCLUSION: Evidence was not found that fertility preservation, with or without hormonal stimulation, was associated with an increased risk of breast cancer recurrence. The high coverage rate of this population-based study supports the safe practice of fertility preservation in young women with breast cancer.


Assuntos
Neoplasias da Mama/fisiopatologia , Preservação da Fertilidade/efeitos adversos , Infertilidade Feminina/prevenção & controle , Recidiva Local de Neoplasia/fisiopatologia , Adulto , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/epidemiologia , Estudos de Coortes , Feminino , Preservação da Fertilidade/métodos , Humanos , Infertilidade Feminina/complicações , Recidiva Local de Neoplasia/epidemiologia , Recidiva Local de Neoplasia/etiologia , Indução da Ovulação/efeitos adversos , Modelos de Riscos Proporcionais , Fatores de Risco , Suécia , Triazóis/uso terapêutico
9.
Br J Cancer ; 115(11): 1400-1407, 2016 Nov 22.
Artigo em Inglês | MEDLINE | ID: mdl-27701383

RESUMO

BACKGROUND: Bone fractures may have an impact on prognosis of breast cancer. The long-term risks of bone fracture in breast cancer patients have not been thoroughly studied. METHODS: Poisson regression was used to investigate the incidence of hospitalisation due to bone fracture comparing women with and without breast cancer based on Swedish National registers. Cox regression was used to investigate the risk of being hospitalised with bone fracture, and subsequent risk of death, in a regional cohort of breast cancer patients. RESULTS: For breast cancer patients, the 5-year risk of bone fracture hospitalisation was 4.8% and the 30-day risk of death following a bone fracture hospitalisation was 2.0%. Compared with the general population, breast cancer patients had incidence rate ratios of 1.25 (95% CI: 1.23-1.28) and 1.18 (95% CI: 1.14-1.22) for hospitalisation due to any bone fracture and hip fracture, respectively. These ratios remained significantly increased for 10 years. Comorbidities (Charlson Comorbidity Index ⩾1) were associated with the risk of being hospitalised with bone fracture. Women taking aromatase inhibitors were at an increased risk as compared with women taking tamoxifen (HR=1.48; 95% CI: 0.98-2.22). Breast cancer patients hospitalised for a bone fracture showed a higher risk of death (HR=1.83; 95% CI: 1.50-2.22) compared with those without bone fracture. CONCLUSIONS: Women with a previous breast cancer diagnosis are at an increased risk of hospitalisation due to a bone fracture, particularly if they have other comorbidities.


Assuntos
Neoplasias da Mama/complicações , Fraturas Ósseas/patologia , Sistema de Registros , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Fraturas Ósseas/etiologia , Fraturas Ósseas/mortalidade , Humanos , Pessoa de Meia-Idade , Distribuição de Poisson , Fatores de Risco , Suécia/epidemiologia
10.
Breast ; 23(4): 357-63, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24524874

RESUMO

INTRODUCTION: The rate of prophylactic mastectomies (PM) is increasing. Patients generally report high levels of health related quality of life and satisfaction after the procedure, whereas body image perception and sexuality may be negatively affected. The aim of the study was to evaluate the interest in physical therapy as a means of improving body image and sexuality in women after PM. PATIENTS AND METHODS: Patients undergoing PM at Karolinska University Hospital between 2006 and 2010 were eligible. The following patient-reported outcome measures were used at study baseline and 2 years postoperatively: the body image scale (BIS), the sexual activity questionnaire (SAQ), the short-form health survey (SF-36), the hospital anxiety and depression scale (HAD), and a study specific "pain/motion/sensation scale". RESULTS: Out of 125 patients invited to participate in this prospective randomized study, 43 (34%) consented and were randomized into the intervention (n = 24, 56%) or control (n = 19, 44%) groups. There were no statistically significant between-group differences found with respect to BIS, SAQ, SF-36, HAD, and "pain/motion/sensation". Two years postoperatively, more than half of the patients in both groups reported problems like feeling less attractive, less sexually attractive, their body feeling less whole, and being dissatisfied with their body. A majority marked a decreased sensation in breast area. CONCLUSION: The interest in a physiotherapy intervention was limited among women who had undergone PM. The intervention did not show any substantial effects. A large proportion of patients reported specific body image related and pain/motion/sensation problems postoperatively.


Assuntos
Imagem Corporal/psicologia , Neoplasias da Mama/prevenção & controle , Mamoplastia/reabilitação , Mastectomia/reabilitação , Modalidades de Fisioterapia , Qualidade de Vida/psicologia , Sexualidade/psicologia , Adulto , Ansiedade/psicologia , Depressão/psicologia , Feminino , Humanos , Mamoplastia/psicologia , Mastectomia/psicologia , Pessoa de Meia-Idade , Resultado do Tratamento
11.
Radiat Oncol ; 9: 14, 2014 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-24406085

RESUMO

The aim of this study was to quantify the variation in doses to organs at risk (ipsilateral lung and heart) and the clinical target volume (CTV) in the presence of breast implants. In this retrospective cohort study, patients were identified through the National Breast Cancer Register. Consecutive breast cancer patients undergoing mastectomy between 2009 and 2011 and completing a full course of postmastectomy radiotherapy (PMRT) were eligible. All included patients (n = 818) were identified in the ARIA© oncology information system and further stratified for immediate breast reconstruction (IBR+, n = 162) and no immediate breast reconstruction (IBR-, n = 656). Dose statistics for ipsilateral lung, heart and CTV were retrieved from the system. Radiation plans for patients with chest wall (CW) only (n = 242) and CW plus lymph nodes (n = 576) irradiation were studied separately.The outcome variables were dichotomized as follows: lung, V(20Gy) ≤ 30% vs. V(20Gy) > 30%; heart, D(mean) ≤ 5 Gy vs. D(mean) > 5 Gy; CTV, V95% ≥ median vs. V95% < median.In the univariate and multivariate regression models no correlation between potential confounders (i.e. breast reconstruction, side of PMRT, CW index) and the outcome variables was found. Multivariate analysis of CW plus lymph nodes radiation plans, for example, showed no association of breast reconstruction with dosimetric outcomes in neither lung nor heart- lung V(20Gy) (odds ratio [OR]: 0.6, 95%CI, 0.4 to 1.0, p = 0.07) or heart D(mean) (OR: 1.2, 95%CI, 0.5 to 3.1, p = 0.72), respectively.CTV was statistically significantly larger in the IBR+ group (i.e. included breast implant), but no correlation between the implant type and dosimetric characteristics of the organs at risk was revealed.In the current study, the presence of breast implants during postmastectomy radiotherapy was not associated with increased doses to ipsilateral lung and heart, but CTV definition and its dosimetric characteristics urge further evaluation.


Assuntos
Implantes de Mama , Neoplasias da Mama/radioterapia , Neoplasias da Mama/cirurgia , Mamoplastia/métodos , Mastectomia , Órgãos em Risco/efeitos da radiação , Radiometria , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/epidemiologia , Terapia Combinada , Feminino , Coração/efeitos da radiação , Humanos , Pulmão/efeitos da radiação , Mamoplastia/estatística & dados numéricos , Pessoa de Meia-Idade , Período Pós-Operatório , Planejamento da Radioterapia Assistida por Computador/efeitos adversos , Planejamento da Radioterapia Assistida por Computador/métodos , Estudos Retrospectivos , Adulto Jovem
12.
Eur J Cancer ; 48(17): 3150-6, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22695071

RESUMO

INTRODUCTION: Contralateral prophylactic mastectomy (CPM) is the most effective option to prevent the occurrence of a second breast cancer in hereditary breast cancer patients. This study aimed to prospectively evaluate health-related quality of life (HRQoL), anxiety and depression, sexuality and body image in breast cancer patients with a family history undergoing CPM with immediate breast reconstruction. PATIENTS AND METHODS: In total, 60 of 69 eligible patients agreed to participate in the study. Four validated questionnaires were used: the SF-36, the Hospital Anxiety and Depression Scale (HAD), the Body Image Scale (BIS), and the Sexual Activity Questionnaire (SAQ). Forty-five patients (75%) responded before CPM, 49 (82%) at 6 months, and 45 (75%) at 2 years after CPM. RESULTS: Overall, the patients showed a satisfactory HRQoL 2 years after CPM, similar to women in the general population. There were no differences in HRQoL, anxiety, depression or sexuality before and after CPM. However, more than half of the women reported at least one body image problem 2 years postoperatively. CONCLUSION: No adverse effects on HRQoL, anxiety, depression or sexuality were observed. However, some aspects of body image were negatively affected after CPM. These findings could be used in preoperative counselling of breast cancer patients opting for CPM.


Assuntos
Imagem Corporal , Neoplasias da Mama/prevenção & controle , Neoplasias da Mama/psicologia , Mastectomia/psicologia , Qualidade de Vida , Sexualidade , Adulto , Idoso , Neoplasias da Mama/genética , Feminino , Seguimentos , Nível de Saúde , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Inquéritos e Questionários
13.
Cancer Epidemiol Biomarkers Prev ; 21(8): 1362-70, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22729394

RESUMO

BACKGROUND: We previously reported significant associations between genetic variants in insulin receptor substrate 1 (IRS1) and breast cancer risk in women carrying BRCA1 mutations. The objectives of this study were to investigate whether the IRS1 variants modified ovarian cancer risk and were associated with breast cancer risk in a larger cohort of BRCA1 and BRCA2 mutation carriers. METHODS: IRS1 rs1801123, rs1330645, and rs1801278 were genotyped in samples from 36 centers in the Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA). Data were analyzed by a retrospective cohort approach modeling the associations with breast and ovarian cancer risks simultaneously. Analyses were stratified by BRCA1 and BRCA2 status and mutation class in BRCA1 carriers. RESULTS: Rs1801278 (Gly972Arg) was associated with ovarian cancer risk for both BRCA1 (HR, 1.43; 95% confidence interval (CI), 1.06-1.92; P = 0.019) and BRCA2 mutation carriers (HR, 2.21; 95% CI, 1.39-3.52, P = 0.0008). For BRCA1 mutation carriers, the breast cancer risk was higher in carriers with class II mutations than class I mutations (class II HR, 1.86; 95% CI, 1.28-2.70; class I HR, 0.86; 95%CI, 0.69-1.09; P(difference), 0.0006). Rs13306465 was associated with ovarian cancer risk in BRCA1 class II mutation carriers (HR, 2.42; P = 0.03). CONCLUSION: The IRS1 Gly972Arg single-nucleotide polymorphism, which affects insulin-like growth factor and insulin signaling, modifies ovarian cancer risk in BRCA1 and BRCA2 mutation carriers and breast cancer risk in BRCA1 class II mutation carriers. IMPACT: These findings may prove useful for risk prediction for breast and ovarian cancers in BRCA1 and BRCA2 mutation carriers.


Assuntos
Neoplasias da Mama/genética , Genes BRCA1 , Genes BRCA2 , Proteínas Substratos do Receptor de Insulina/genética , Neoplasias Ovarianas/genética , Estudos de Coortes , Feminino , Predisposição Genética para Doença , Genótipo , Humanos , Mutação , Polimorfismo de Nucleotídeo Único
14.
Acta Oncol ; 51(7): 934-41, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22409595

RESUMO

BACKGROUND: The purpose of this study was to evaluate the clinical course of breast reconstruction in patients with personal and family history of breast cancer undergoing contralateral prophylactic mastectomy (CPM) and elucidate the association between reoperation risk and adjuvant treatment. METHODS: A descriptive retrospective study of a consecutive series of breast cancer patients who underwent CPM with breast reconstruction at Karolinska University Hospital between 1998 and 2008 was performed. Reoperation was chosen as an outcome variable assessing morbidity and thus documented for each patient and for each reconstructed breast. Regression analyses were performed to evaluate the risk of reoperation after bilateral breast reconstruction. RESULTS: Ninety-one patients underwent CPM during the study period. Their mean age at CPM was 45.3 years (SD =9.4). No contralateral breast cancer was diagnosed after CPM during the median follow-up period of 3.9 years. All women, but two, received an implant based breast reconstruction. The majority (n =75, 82%) underwent CPM with concurrent bilateral breast reconstruction. Overall, after bilateral breast reconstruction 45/75 (60%) required at least one reoperation on the CPM side (n =2, 3%), therapeutic mastectomy (TM) side (n =17, 23%) or both sides (n =26, 33%). In the paired analyses, the probability of reoperation was significantly higher after TM reconstruction as compared to CPM (0.57 vs. 0.37, p =0.001). The mean number of reoperations required for completion of TM and CPM reconstruction was 0.84 and 0.49, respectively (p =0.003). Among all potential risk factors, only radiotherapy was associated with reoperation after bilateral breast reconstruction (odds ratio [OR]: 4.2, 95% CI, 1.3 to 13.6, p =0.015). CONCLUSIONS: Breast reconstruction in patients with personal and family history of breast cancer is a complex operation. This study found that the clinical course after bilateral breast reconstruction was predominantly affected by reoperations on the TM side and given radiotherapy was associated with reoperation. Further studies are necessary to examine the possible predictors of unanticipated reoperations in candidates for CPM with breast reconstruction.


Assuntos
Neoplasias da Mama/prevenção & controle , Neoplasias da Mama/cirurgia , Mamoplastia , Mastectomia Radical Modificada , Adulto , Idoso , Neoplasias da Mama/genética , Neoplasias da Mama/patologia , Feminino , Genes BRCA1 , Genes BRCA2 , Predisposição Genética para Doença , Humanos , Anamnese , Pessoa de Meia-Idade , Mutação , Radioterapia Adjuvante/efeitos adversos , Reoperação/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Risco , Suécia , Resultado do Tratamento
15.
J Clin Oncol ; 30(9): 921-9, 2012 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-22331954

RESUMO

PURPOSE: To investigate whether sunitinib plus docetaxel improves clinical outcomes for patients with human epidermal growth factor receptor 2 (HER2)/neu-negative advanced breast cancer (ABC) versus docetaxel alone. PATIENTS AND METHODS: In this phase III study, patients were randomly assigned to open-label combination therapy (sunitinib 37.5 mg/d, days 2 to 15 every 3 weeks; and docetaxel 75 mg/m(2), day 1 every 3 weeks) or monotherapy (docetaxel 100 mg/m(2) every 3 weeks). Progression-free survival (PFS) was the primary end point. RESULTS: Two hundred ninety-six patients were randomly assigned to combination therapy, and 297 patients were assigned to monotherapy. Median PFS times were 8.6 and 8.3 months with combination therapy and monotherapy, respectively (hazard ratio, 0.92; one-sided P = .265). The objective response rate (ORR) was significantly higher with the combination (55%) than with monotherapy (42%; one-sided P = .001). Duration of response was similar in both arms (7.5 months with the combination v 7.2 months with monotherapy). Median overall survival (OS) times were 24.8 and 25.5 months with combination therapy and monotherapy, respectively (one-sided P = .904). There were 107 deaths with the combination and 91 deaths with monotherapy. The frequency of common adverse events (AEs) was higher with the combination, as were treatment discontinuations caused by AEs. CONCLUSION: The combination of sunitinib plus docetaxel improved ORR but did not prolong either PFS or OS compared with docetaxel alone when given to an unselected HER2/neu-negative cohort as first-line treatment for ABC. Sunitinib combination therapy may also have resulted in AEs that yield an unfavorable risk-benefit ratio. The sunitinib-docetaxel regimen evaluated in this study is not recommended for further use in ABC.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Carcinoma Ductal de Mama/tratamento farmacológico , Carcinoma Lobular/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/mortalidade , Carcinoma Ductal de Mama/secundário , Carcinoma Lobular/mortalidade , Carcinoma Lobular/secundário , Docetaxel , Feminino , Humanos , Indóis/administração & dosagem , Agências Internacionais , Pessoa de Meia-Idade , Estudos Prospectivos , Pirróis/administração & dosagem , Receptor ErbB-2/metabolismo , Sunitinibe , Taxa de Sobrevida , Taxoides/administração & dosagem , Resultado do Tratamento
16.
Breast ; 21(4): 507-13, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22336056

RESUMO

BACKGROUND: This exploratory study examined the pharmacokinetics, safety, and antitumor activity of sunitinib plus docetaxel in patients with HER-2-negative advanced breast cancer. PATIENTS AND METHODS: Patients with HER-2-negative disease who had received prior adjuvant anthracycline-based therapy received docetaxel (75 mg/m(2)) on day 1 of each 3-week cycle followed by sunitinib (37.5 mg/day for 2 weeks on Schedule 2/1) starting on day 2 (day 3 on cycle 2). RESULTS: Twenty-two patients were enrolled. No clinically significant drug-drug interactions were observed. The most common non-hematologic AE (any grade) was fatigue/asthenia. Grade 4 neutropenia occurred in 20/22 patients (91%; n = 7 had neutropenic fever). The safety profile was similar to each agent given individually. 14/19 (73.7%) evaluable patients had a PR and 5/19 (26.3%) had SD. CONCLUSIONS: Sunitinib plus docetaxel on Schedule 2/1 did not result in any clinically significant drug-drug interactions. This combination was manageable and exhibited antitumor activity.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Carcinoma Ductal de Mama/tratamento farmacológico , Carcinoma Lobular/tratamento farmacológico , Recidiva Local de Neoplasia/tratamento farmacológico , Adulto , Idoso , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos , Antineoplásicos/farmacocinética , Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Neoplasias da Mama/metabolismo , Carcinoma Ductal de Mama/metabolismo , Carcinoma Lobular/metabolismo , Docetaxel , Esquema de Medicação , Interações Medicamentosas , Estudos de Viabilidade , Feminino , Humanos , Indóis/administração & dosagem , Indóis/efeitos adversos , Indóis/farmacocinética , Pessoa de Meia-Idade , Pirróis/administração & dosagem , Pirróis/efeitos adversos , Pirróis/farmacocinética , Receptor ErbB-2/metabolismo , Sunitinibe , Taxoides/administração & dosagem , Taxoides/efeitos adversos , Taxoides/farmacocinética , Resultado do Tratamento
17.
Hum Mutat ; 33(4): 690-702, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22253144

RESUMO

Germline mutations in BRCA1 and BRCA2 are associated with increased risks of breast and ovarian cancer. A genome-wide association study (GWAS) identified six alleles associated with risk of ovarian cancer for women in the general population. We evaluated four of these loci as potential modifiers of ovarian cancer risk for BRCA1 and BRCA2 mutation carriers. Four single-nucleotide polymorphisms (SNPs), rs10088218 (at 8q24), rs2665390 (at 3q25), rs717852 (at 2q31), and rs9303542 (at 17q21), were genotyped in 12,599 BRCA1 and 7,132 BRCA2 carriers, including 2,678 ovarian cancer cases. Associations were evaluated within a retrospective cohort approach. All four loci were associated with ovarian cancer risk in BRCA2 carriers; rs10088218 per-allele hazard ratio (HR) = 0.81 (95% CI: 0.67-0.98) P-trend = 0.033, rs2665390 HR = 1.48 (95% CI: 1.21-1.83) P-trend = 1.8 × 10(-4), rs717852 HR = 1.25 (95% CI: 1.10-1.42) P-trend = 6.6 × 10(-4), rs9303542 HR = 1.16 (95% CI: 1.02-1.33) P-trend = 0.026. Two loci were associated with ovarian cancer risk in BRCA1 carriers; rs10088218 per-allele HR = 0.89 (95% CI: 0.81-0.99) P-trend = 0.029, rs2665390 HR = 1.25 (95% CI: 1.10-1.42) P-trend = 6.1 × 10(-4). The HR estimates for the remaining loci were consistent with odds ratio estimates for the general population. The identification of multiple loci modifying ovarian cancer risk may be useful for counseling women with BRCA1 and BRCA2 mutations regarding their risk of ovarian cancer.


Assuntos
Proteína BRCA1/genética , Proteína BRCA2/genética , Mutação , Neoplasias Ovarianas/genética , Polimorfismo de Nucleotídeo Único , Adulto , Estudos de Coortes , Feminino , Predisposição Genética para Doença , Heterozigoto , Humanos , Pessoa de Meia-Idade , Razão de Chances , Estudos Retrospectivos
18.
World J Surg ; 36(4): 695-701, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21932147

RESUMO

BACKGROUND: Polyacrylamide gel (PAAG) was first manufactured in Ukraine in the late 1980s and introduced as a biomaterial for "breast augmentation without surgery." Since it is prohibited in most countries, PAAG injections are rare nowadays, but their consequences and long-term complications can be crucial. METHODS: We identified 106 patients consecutively operated on for PAAG complications at three teaching Ukrainian hospitals between 1998 and 2009. All relevant sociodemographic, clinical, and treatment characteristics were collected. Forty-five (42%) patients were available for clinical follow-up. RESULTS: The majority (88%) had had bilateral PAAG injections. The mean volume of injected PAAG was 230 ml/breast (range = 50-400). Mean age at injection was 29 years (range = 17-49) and the mean time from the injection to complications was 6.1 years (SD = 4.1). Symptoms preceding debridement were pain in 85 patients (80%), breast hardening in 79 (74%), breast deformity in 77 (73%), lumps in 57 (54%), gel migration in 39 (37%), fistulas in 17 (16%), and gel leakage in 12 (11%). The surgical interventions in 199 breasts included gel evacuation alone in 107 (54%) or in combination with partial mastectomy in 65 (33%), partial mastectomy and partial pectoralis muscle resection in 12 (6%), or subcutaneous mastectomy in 15 (7%). Of the 199 operated breasts, 86 (43%) immediate and 58 (29%) delayed implant-based breast reconstructions were performed. CONCLUSION: Injections of PAAG can cause irreversible damage to the breast necessitating complex debridement procedures, even mastectomy and breast reconstruction. Despite numerous surgical interventions, gel remnants are still found on subsequent breast imaging. Although PAAG is prohibited in many countries, different types of injections with unknown long-term effects are currently being used. Making the public aware of the problems of injectables for breast augmentation is warranted.


Assuntos
Resinas Acrílicas/efeitos adversos , Doenças Mamárias/cirurgia , Mamoplastia/efeitos adversos , Resinas Acrílicas/administração & dosagem , Adolescente , Adulto , Materiais Biocompatíveis , Doenças Mamárias/etiologia , Desbridamento , Feminino , Humanos , Injeções , Mamoplastia/métodos , Pessoa de Meia-Idade , Satisfação do Paciente , Qualidade de Vida , Adulto Jovem
19.
Breast Cancer Res Treat ; 135(3): 791-8, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21153699

RESUMO

To evaluate true acupuncture to control acupuncture (CTRL) (non-insertive stimulation at non-acupuncture points) in breast cancer patients treated with adjuvant tamoxifen suffering from hot flushes and sweatings. Eighty-four patients were randomized to receive either true acupuncture or CTRL twice a week for 5 weeks. Seventy-four patients were treated according to the protocol. In the true acupuncture group 42% (16/38) reported improvements in hot flushes after 6 weeks compared to 47% (17/36) in the CTRL group (95% CI, -28 to 18%). Both groups reported improvement regarding severity and frequencies in hot flushes and sweatings but no statistical difference was found between the groups. In a subanalysis regarding the severity of sweatings at night a statistically significant difference P = 0.03 was found in the true acupuncture group. Former experience of true acupuncture did not influence the perception of true acupuncture or CTRL. No significant differences in hormonal levels were found before and after treatment. In conclusion, convincing data that true acupuncture is more effective than CTRL in reducing vasomotor symptoms is still lacking. Our study shows that both true and CTRL reduce vasomotor symptoms in breast cancer patients treated with adjuvant tamoxifen.


Assuntos
Terapia por Acupuntura/métodos , Antineoplásicos Hormonais/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , Fogachos/terapia , Tamoxifeno/efeitos adversos , Pontos de Acupuntura , Adulto , Idoso , Idoso de 80 Anos ou mais , Quimioterapia Adjuvante , Feminino , Fogachos/induzido quimicamente , Humanos , Pessoa de Meia-Idade , Sudorese
20.
Fam Cancer ; 11(1): 33-40, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22124624

RESUMO

The ability of the Breast and Ovarian Analysis of Disease Incidence and Carrier Estimation Algorithm (BOADICEA) model to predict BRCA1 and BRCA2 mutations and breast cancer incidence in women with a family history of breast cancer was evaluated. Observed mutations in 263 screened families were compared to retrospective predictions. Similarly, observed breast cancers in 640 women were compared to retrospective predictions of breast cancer incidence. The ratios of observed to expected number of BRCA1- , BRCA2- and BRCA(1 or 2) mutations were 1.43 (95% CI 1.05-1.90), 0.63 (95% CI 0.34-1.08), and 1.12 (95% CI 0.86-1.44), showing a significant underestimation of BRCA1 mutations. Discrimination between carriers and non-carriers as measured by area under the receiver operating characteristic (ROC) curve was 0.83 (95% CI 0.76-0.88). The ratio of observed to expected number of invasive breast cancers was 1.41 (0.91-2.08). The corresponding area under the ROC curve for prediction of invasive breast cancer at individual level was 0.62 (95% CI 0.52-0.73). In conclusion, the BOADICEA model can predict the total prevalence of BRCA(1 or 2) mutations and the incidence of invasive breast cancers. The mutation probability as generated by BOADICEA can be used clinically as a guideline for screening, and thus decrease the proportion of negative mutation analyses. Likewise, individual breast cancer risks can be used for selecting women whose risk of breast cancer indicates follow-up. Application of local mutation frequencies of BRCA1 and BRCA2 could improve the ability to distinguish between the two genes.


Assuntos
Proteína BRCA1/genética , Proteína BRCA2/genética , Neoplasias da Mama/etiologia , Carcinoma Intraductal não Infiltrante/etiologia , Predisposição Genética para Doença , Mutação/genética , Adulto , Neoplasias da Mama/epidemiologia , Carcinoma Intraductal não Infiltrante/epidemiologia , Feminino , Testes Genéticos , Heterozigoto , Humanos , Incidência , Pessoa de Meia-Idade , Modelos Teóricos , Taxa de Mutação , Estudos Prospectivos , Curva ROC , Medição de Risco
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