Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 77
Filtrar
Mais filtros

País/Região como assunto
País de afiliação
Intervalo de ano de publicação
1.
Breast Cancer Res Treat ; 198(3): 447-461, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36786946

RESUMO

BACKGROUND: Breast magnetic resonance imaging (MRI) has high sensitivity in detecting invasive neoplasms. Controversy remains about its impact on the preoperative staging of breast cancer surgery. This study evaluated survival and surgical outcomes of preoperative MRI in conservative breast cancer surgery. METHODS: A phase III, randomized, open-label, single-center trial including female breast cancer participants, stage 0-III disease, and eligible for breast-conserving surgery. We compared the role of including MRI in preoperative evaluation versus radiologic exam routine with mammography and ultrasound in breast cancer conservative candidates. The primary outcome was local relapse-free survival (LRFS), and secondary outcomes were overall survival (OS), mastectomy rate, and reoperation rate. RESULTS: 524 were randomized to preoperative MRI group (n = 257) or control group (n = 267). The survival analysis showed a 5.9-years LRFS of 99.2% in MRI group versus 98.9% in control group (HR = 0.72; 95% CI 0.12-4.28; p = 0.7) and an OS of 95.3% in the MRI group versus 96.3% in the control group (HR = 1.37 95% CI 0.59-3.19; p = 0.8). Surgical management changed in 21 ipsilateral breasts in the MRI group; 21 (8.3%) had mastectomies versus one in the control group. No difference was found in reoperation rates, 22 (8.7%) in the MRI group versus 23 (8.7%) in the control group (RR = 1.002; 95% CI 0.57-1.75; p = 0.85). CONCLUSION: Preoperative MRI increased the mastectomy rates by 8%. The use of preoperative MRI did not influence local relapse-free survival, overall survival, or reoperation rates.


Assuntos
Neoplasias da Mama , Feminino , Humanos , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/cirurgia , Mastectomia/métodos , Taxa de Sobrevida , Recidiva Local de Neoplasia/diagnóstico por imagem , Recidiva Local de Neoplasia/cirurgia , Recidiva Local de Neoplasia/patologia , Mastectomia Segmentar/métodos , Cuidados Pré-Operatórios , Imageamento por Ressonância Magnética/métodos
2.
Cochrane Database Syst Rev ; 3: CD010993, 2023 03 27.
Artigo em Inglês | MEDLINE | ID: mdl-36972145

RESUMO

BACKGROUND: Skin-sparing mastectomy (SSM) is a surgical technique that aims to maximize skin preservation, facilitate breast reconstruction, and improve cosmetic outcomes. Despite its use in clinical practice, the benefits and harms related to SSM are not well established. OBJECTIVES: To assess the effectiveness and safety of skin-sparing mastectomy for the treatment of breast cancer. SEARCH METHODS: We searched Cochrane Breast Cancer's Specialized Register, CENTRAL, MEDLINE, Embase, LILACS, the World Health Organization's International Clinical Trials Registry Platform (WHO ICTRP), and ClinicalTrials.gov on 9 August 2019. SELECTION CRITERIA: Randomized controlled trials (RCTs), quasi-randomized or non-randomized studies (cohort and case-control) comparing SSM to conventional mastectomy for treating ductal carcinoma in situ (DCIS) or invasive breast cancer. DATA COLLECTION AND ANALYSIS: We used standard methodological procedures expected by Cochrane. The primary outcome was overall survival. Secondary outcomes were local recurrence free-survival, adverse events (including overall complications, breast reconstruction loss, skin necrosis, infection and hemorrhage), cosmetic results, and quality of life. We performed a descriptive analysis and meta-analysis of the data. MAIN RESULTS: We found no RCTs or quasi-RCTs. We included two prospective cohort studies and twelve retrospective cohort studies. These studies included 12,211 participants involving 12,283 surgeries (3183 SSM and 9100 conventional mastectomies). It was not possible to perform a meta-analysis for overall survival and local recurrence free-survival due to clinical heterogeneity across studies and a lack of data to calculate hazard ratios (HR).  Based on one study, the evidence suggests that SSM may not reduce overall survival for participants with DCIS tumors (HR 0.41, 95% CI 0.17 to 1.02; P = 0.06; 399 participants; very low-certainty evidence) or for participants with invasive carcinoma (HR 0.81, 95% CI 0.48 to 1.38; P = 0.44; 907 participants; very low-certainty evidence). For local recurrence-free survival, meta-analysis was not possible, due to high risk of bias in nine of the ten studies that measured this outcome. Informal visual examination of effect sizes from nine studies suggested the size of the HR may be similar between groups. Based on one study that adjusted for confounders, SSM may not reduce local recurrence-free survival (HR 0.82, 95% CI 0.47 to 1.42; P = 0.48; 5690 participants; very low-certainty evidence).  The effect of SSM on overall complications is unclear (RR 1.55, 95% CI 0.97 to 2.46; P = 0.07, I2 = 88%; 4 studies, 677 participants; very low-certainty evidence). Skin-sparing mastectomy may not reduce the risk of breast reconstruction loss (RR 1.79, 95% CI 0.31 to 10.35; P = 0.52; 3 studies, 475 participants; very low-certainty evidence), skin necrosis (RR 1.15, 95% CI 0.62 to 2.12; P = 0.22, I2 = 33%; 4 studies, 677 participants; very low-certainty evidence), local infection (RR 2.04, 95% CI 0.03 to 142.71; P = 0.74, I2 = 88%; 2 studies, 371 participants; very low-certainty evidence), nor hemorrhage (RR 1.23, 95% CI 0.47 to 3.27; P = 0.67, I2 = 0%; 4 studies, 677 participants; very low-certainty evidence). We downgraded the certainty of the evidence due to the risk of bias, imprecision, and inconsistency among the studies. There were no data available on the following outcomes: systemic surgical complications, local complications, explantation of implant/expander, hematoma, seroma, rehospitalization, skin necrosis with revisional surgery, and capsular contracture of the implant. It was not possible to perform a meta-analysis for cosmetic and quality of life outcomes due to a lack of data. One study performed an evaluation of aesthetic outcome after SSM: 77.7% of participants with immediate breast reconstruction had an overall aesthetic result of excellent or good versus 87% of participants with delayed breast reconstruction. AUTHORS' CONCLUSIONS: Based on very low-certainty evidence from observational studies, it was not possible to draw definitive conclusions on the effectiveness and safety of SSM for breast cancer treatment. The decision for this technique of breast surgery for treatment of DCIS or invasive breast cancer must be individualized and shared between the physician and the patient while considering the potential risks and benefits of available surgical options.


Assuntos
Neoplasias da Mama , Carcinoma Intraductal não Infiltrante , Mamoplastia , Humanos , Feminino , Carcinoma Intraductal não Infiltrante/cirurgia , Carcinoma Intraductal não Infiltrante/etiologia , Neoplasias da Mama/cirurgia , Mastectomia/efeitos adversos , Mastectomia/métodos , Mamoplastia/efeitos adversos , Necrose
3.
BMC Cancer ; 22(1): 391, 2022 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-35410265

RESUMO

OBJECTIVE: To present a systematic review of the literature and a meta-analysis evaluating the oncological safety of autologous fat grafting (AFG). SUMMARY BACKGROUND DATA: AFG for breast reconstruction presents difficulties during follow-up radiological exams, and the oncological potential of grafted fat is uncertain. Previous studies confirmed that the fatty tissue could be transferred under a good condition suitable would not interfere with mammographic follow-up, although the issue of oncological safety remains. METHODS: We reviewed the literature published until 01/18/2021. The outcomes were overall survival (OS), disease-free survival (DFS), and local recurrence (LR). We included studies that evaluated women with breast cancer who undergone surgery followed by reconstruction with AFG. We synthesized data using the inverse variance method on the log-HR (log of the hazard ratio) scale for time-to-event outcomes using RevMan. We assessed heterogeneity using the Chi2 and I2 statistics. RESULTS: Fifteen studies evaluating 8541 participants were included. The hazard ratios (HR) could be extracted from four studies, and there was no difference in OS between the AFG group and control (HR 0.9, 95% CI 0.53 to 1.54, p = 0.71, I2 = 58%, moderate certainty evidence), and publication bias was not detected. The HR for DFS could be extracted from six studies, and there was no difference between the AFG group and control (HR 1.01, 95% CI 0.73 to 1.38, p = 0.96, I2 = 0%, moderate certainty evidence). The HR for LR could be extracted from ten studies, and there was no difference between the AFG group and control (HR 0.86, 95% CI 0.66 to 1.12, p = 0.43, I2 = 1%, moderate certainty evidence). CONCLUSION: According to the current evidence, AFG is a safe technique of breast reconstruction for patients that have undergone BC surgery and did not affect OS, DFS, or LR.


Assuntos
Neoplasias da Mama , Mamoplastia , Tecido Adiposo , Neoplasias da Mama/cirurgia , Feminino , Humanos , Mamoplastia/efeitos adversos , Mamoplastia/métodos , Recidiva Local de Neoplasia/epidemiologia , Recidiva Local de Neoplasia/cirurgia , Transplante Autólogo/efeitos adversos , Transplante Autólogo/métodos
4.
Cochrane Database Syst Rev ; 11: CD008932, 2016 11 29.
Artigo em Inglês | MEDLINE | ID: mdl-27898991

RESUMO

BACKGROUND: The efficacy and safety of nipple-sparing mastectomy and areola-sparing mastectomy for the treatment of breast cancer are still questionable. It is estimated that the local recurrence rates following nipple-sparing mastectomy are very similar to breast-conserving surgery followed by radiotherapy. OBJECTIVES: To assess the efficacy and safety of nipple-sparing mastectomy and areola-sparing mastectomy for the treatment of ductal carcinoma in situ and invasive breast cancer in women. SEARCH METHODS: We searched the Cochrane Breast Cancer Group's Specialized Register, the Cochrane Center Register of Controlled Trials (CENTRAL), MEDLINE (via PubMed), Embase (via OVID) and LILACS (via Biblioteca Virtual em Saúde [BVS]) using the search terms "nipple sparing mastectomy" and "areola-sparing mastectomy". Also, we searched the World Health Organization's International Clinical Trials Registry Platform and ClinicalTrials.gov. All searches were conducted on 30th September 2014 and we did not apply any language restrictions. SELECTION CRITERIA: Randomised controlled trials (RCTs) however if there were no RCTs, we expanded our criteria to include non-randomised comparative studies (cohort and case-control studies). Studies evaluated nipple-sparing and areola-sparing mastectomy compared to modified radical mastectomy or skin-sparing mastectomy for the treatment of ductal carcinoma in situ or invasive breast cancer. DATA COLLECTION AND ANALYSIS: Two review authors (BS and RR) performed data extraction and resolved disagreements. We performed descriptive analyses and meta-analyses of the data using Review Manager software. We used Cochrane's risk of bias tool to assess studies, and adapted it for non-randomised studies, and we evaluated the quality of the evidence using GRADE criteria. MAIN RESULTS: We included 11 cohort studies, evaluating a total of 6502 participants undergoing 7018 procedures: 2529 underwent a nipple-sparing mastectomy (NSM), 818 underwent skin-sparing mastectomy (SSM) and 3671 underwent traditional mastectomy, also known as modified radical mastectomy (MRM). No participants underwent areola-sparing mastectomy. There was a high risk of confounding for all reported outcomes. For overall survival, the hazard ratio (HR) for NSM compared to SSM was 0.70 (95% CI 0.28 to 1.73; 2 studies; 781 participants) and the HR for NSM compared to MRM was 0.72 (95% CI 0.46 to 1.13; 2 studies, 1202 participants). Local recurrence was evaluated in two studies, the HR for NSM compared to MRM was 0.28 (95% CI 0.12 to 0.68; 2 studies, 1303 participants). The overall risk of complications was different in NSM when compared to other types of mastectomy in general (RR 0.10, 95% CI 0.01 to 0.82, 2 studies, P = 0.03; 1067 participants). With respect to skin necrosis, there was no evidence of a difference with NSM compared to other types of mastectomy, but the confidence interval was wide (RR 4.22, 95% CI 0.59 to 30.03, P = 0.15; 4 studies, 1948 participants). We observed no difference among the three types of mastectomy with respect to the risk of local infection (RR 0.95, 95% CI 0.44 to 2.09, P = 0.91, 2 studies; 496 participants). Meta-analysis was not possible when assessing cosmetic outcomes and quality of life, but in general the NSM studies reported a favourable aesthetic result and a gain in quality of life compared with the other types of mastectomy. The quality of evidence was considered very low for all outcomes due to the high risk of selection bias and wide confidence intervals. AUTHORS' CONCLUSIONS: The findings from these observational studies of very low-quality evidence were inconclusive for all outcomes due to the high risk of selection bias.


Assuntos
Neoplasias da Mama/cirurgia , Carcinoma Intraductal não Infiltrante/cirurgia , Mastectomia/métodos , Mamilos , Tratamentos com Preservação do Órgão/métodos , Neoplasias da Mama/mortalidade , Carcinoma Intraductal não Infiltrante/mortalidade , Estudos de Coortes , Feminino , Humanos , Mastectomia/efeitos adversos , Mastectomia/mortalidade , Recidiva Local de Neoplasia , Tratamentos com Preservação do Órgão/efeitos adversos , Complicações Pós-Operatórias , Pele
5.
Tumour Biol ; 35(8): 7733-41, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24810926

RESUMO

New concepts in epigenetics, microRNAs, and gene expression analysis have significantly enhanced knowledge of cancer pathogenesis over the last decade. MicroRNAs (miRNAs) are a class of non-coding RNAs that regulate gene expression by base pairing with target messenger RNAs (mRNAs), resulting in the repression of translation or the degradation of mRNA. To compare the carcinogenic process in tumors with different prognoses, we used real-time RT-PCR to evaluate the miRNA expression profiles of 24 triple-negative breast invasive ductal carcinoma, 20 luminal A breast invasive ductal carcinoma, and 13 normal breast parenchyma controls. We extracted total RNA from tissues fixed in formol and embedded in paraffin (FFPE). Results revealed the upregulation of miR-96-5p (9.35-fold; p = 0.000115), miR-182-5p (7.75-fold; p = 0.000033), miR-7-5p (6.71-fold; p = 0.015626), and miR-21-5p (6.10-fold; p = 0.000000) in tumors group. In addition, the expression of miR-125b-5p (4.49-fold; p = 0.000000) and miR-205-5p (4.36-fold; p = 0.006098) was downregulated. When the expression profiles of triple-negative and luminal A tumors were compared, there was enhanced expression of miR-17-5p (4.27-fold; p = 0.000664), miR-18a-5p (9.68-fold; p = 0.000545), and miR-20a-5 (4.07-fold; p = 0.001487) in the triple-negative tumors compared with luminal A. These data suggest that there is a similar regulation of certain miRNAs in triple-negative and luminal A tumors. However, it is possible that differences in the expression of miR-17-92 cluster will explain the phenotypic differences between these molecular tumor subtypes.


Assuntos
Regulação Neoplásica da Expressão Gênica , MicroRNAs/análise , Neoplasias de Mama Triplo Negativas/genética , Mama/metabolismo , Carcinoma Ductal de Mama/genética , Feminino , Proteína Forkhead Box O1 , Fatores de Transcrição Forkhead/genética , Humanos
6.
Acta Cytol ; 57(3): 276-80, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23636145

RESUMO

OBJECTIVE: Samples from breast nipples collected with the automated HALO™ Mamo Cito Test were studied in order to evaluate the cellularity for the diagnosis of breast cancer. STUDY DESIGN: One hundred and fifty-nine asymptomatic women were prospectively examined. Women younger than 18 years, pregnant or lactating women, and women with a history of breast cancer, with previous radio- or chemotherapy and with nipple piercing were excluded from the study. Nipple samples from both breasts were collected. RESULTS: In 107 (34.96%) of the 306 samples of nipple discharge analyzed by optical microscopy, adequate cellularity was observed after the HALO procedure. Cytological findings, previously categorized according to the National Health Service Breast Screening Program (NHSBSP), were grouped as unsatisfactory, benign, suspected for malignancy, and malignant. Of the cellular breast samples, 97.19% (104/107) were classified as benign, and 2.81% (3/107) were classified as suspicious for malignancy. In 199 cases there were samples without cells (65.03%). Most of the cells observed were easily recognized as well-preserved and adequately stained macrophages. None of the women reported discomfort with the nipple aspiration procedure. CONCLUSIONS: The results discussed here encouraged us to use samples collected automatically in routine procedures.


Assuntos
Neoplasias da Mama/patologia , Citodiagnóstico/métodos , Fluido do Aspirado de Mamilo/citologia , Mamilos/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Automação Laboratorial , Distribuição de Qui-Quadrado , Feminino , Humanos , Macrófagos/patologia , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Prospectivos , Sucção , Adulto Jovem
7.
Clinics (Sao Paulo) ; 78: 100155, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36681070

RESUMO

FOXO3a dysregulation is frequently implicated in tumorigenesis, and its inhibition can occur by several molecular mechanisms. Among these, post-transcriptional suppression by miRNAs has been associated with various cancers initiation. Here, we assessed the expression profiles of the most relevant miRNAs for breast tumorigenesis, using Luminal A (LA) and Triple-Negative (TN) breast cancer from Brazilian patients, by the quantitative real time-PCR method. Their potential prognostic role for the patients was also evaluated. We identified the miRNAs miR-96-5p and miR-182-5p, de-scribed as negative regulators of FOXO3A, with differential expression both in LA and TN tumors when compared to normal tissue. The miR-96-5p and miR-182-5p miRNAs were upregulated in LA (7.82 times, p < 0.005; 6.12 times, p < 0.005, respectively) and TN breast cancer samples (9.42 times, p < 0.0001; 8.51 times, p < 0.0001) compared to normal tissues. The samples with higher miR-96-5p and miR-182-5p expression (FR ≥ 4) were submitted for FOXO3a immunostaining. Reduced protein detection was observed in all of the tumors compared to normal tissues. The most prominent miRNA expression and FOXO3a protein suppression were observed in TN samples (p < 0.001), indicating the relevant role of these molecules in this tumor biology and clinical behavior. Our results corroborate the literature regarding to the relevance of FOXO3a in the breast cancer, and they open new perspectives for alternative target therapy options for Brazilian patients expressing both FOXO3a and its regulatory miRNAs.


Assuntos
Neoplasias da Mama , MicroRNAs , Neoplasias de Mama Triplo Negativas , Feminino , Humanos , Biomarcadores Tumorais/genética , Brasil , Neoplasias da Mama/genética , Neoplasias da Mama/patologia , Carcinogênese , Perfilação da Expressão Gênica , Regulação Neoplásica da Expressão Gênica , MicroRNAs/genética , MicroRNAs/metabolismo , Prognóstico , Neoplasias de Mama Triplo Negativas/genética , Neoplasias de Mama Triplo Negativas/patologia , Fenobarbital/metabolismo
8.
Eur J Obstet Gynecol Reprod Biol X ; 20: 100243, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37780817

RESUMO

Correlation between imaging and anatomopathological breast density has been superficially explored and is heterogeneous in current medical literature. It is possible that mammographic and pathological findings are divergent. The aim of this study is to evaluate the association between breast density classified by mammography and breast density of pathological macroscopic examination in specimens of breast cancer conservative surgeries. Post-hoc, exploratory analysis of a prospective randomized clinical trial of patients with breast cancer candidates for breast conservative surgery. Breast mammographic density (MD) was analyzed according to ACR BI-RADS® criteria, and pathologic macroscopic evaluation of breast density (PMBD) was estimated by visually calculating the ratio between stromal and fatty tissue. From 412 patients, MD was A in 291 (70,6%), B in 80 (19,4%) B, C in 35 (8,5%), and D in 6 (1,5%). Ninety-nine percent (201/203) of patients classified as A+B in MD were correspondently classified in PMBD. Conversely, only 18.7% (39/209) of patients with MD C+D were classified correspondently in PMBD (p < 0.001). Binary logistic regression showed age (OR 1.06, 1.01-1.12 95% CI, p 0.013) and nulliparity (OR 0.39, 0.17-0.96 95% CI, p 0.039) as predictors of A+B PMBD. Conclusion: Mammographic and pathologic macroscopic breast density showed no association in our study for breast C or D in breast image. The fatty breast was associated with older patients and the nulliparity decreases the chance of fatty breasts nearby 60%.

9.
Front Oncol ; 13: 1293288, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38023121

RESUMO

Background: Recent data suggest that breast-conserving surgery (BCS) may positively impact overall survival (OS) in early breast cancer. However, the role of BCS in locally advanced breast cancer (LABC) following neoadjuvant therapy (NAT) remains uncertain. Methods: We conducted a retrospective cohort study involving 530 LABC patients who underwent surgery after NAT between 2010 and 2015. Outcomes examined included OS, distant recurrence rates (DRR), and loco-regional recurrence rates (LRRs). Results: Among the 927 breast cancer patients who received NAT, 530 were eligible for our study. Of these, 24.6% underwent BCS, while 75.4% underwent mastectomy (MS). The median follow-up duration was 79 months. BCS patients exhibited a higher pathological complete response (PCR) rate compared to those who underwent MS (22.3% vs. 10%, p < 0.001). The 6-year OS rates for BCS and MS were 81.5% and 62%, respectively (p < 0.000). In multivariate OS analysis, MS was associated with worse outcomes (OR 1.678; 95% CI 1.069-2.635; p = 0.024), as was body mass index (BMI) (OR 1.031; 95% CI 1.006-1.058; p = 0.017), and stage IIIB or IIIC (OR 2.450; 95% CI 1.561-3.846; p < 0.000). Conversely, PCR (OR 0.42; 95% CI 0.220-0.801; p = 0.008) was associated with improved survival. DRR was significantly lower in BCS (15.4%) compared to MS (36.8%) (OR 0.298; 95% CI 0.177-0.504). LRRs were comparable between BCS (9.2%) and MS (9.5%) (OR 0.693; 95% CI 0.347-1.383). Conclusion: Our findings suggest that BCS is oncologically safe, even for patients with large lesions, and is associated with superior OS rates compared to MS. Additionally, lower BMI, lower pretreatment stage, and achieving PCR were associated with improved survival outcomes.

10.
AJR Am J Roentgenol ; 198(3): W285-91, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22358027

RESUMO

OBJECTIVE: The objective of our study was to evaluate the effectiveness of MRI in the detection of possible residual lesions after radiofrequency ablation (RFA) in the treatment of breast cancer. SUBJECTS AND METHODS: We prospectively evaluated 14 patients who had undergone ultrasound-guided core biopsies diagnostic of invasive ductal carcinoma (IDC; range of diameters, 1.0-3.0 cm) and then ultrasound-guided percutaneous RFA with sentinel node biopsy as the primary treatment. Breast MRI was performed 1 week before RFA to evaluate tumor extension and again 3 weeks after RFA to verify the presence of possible residual lesions. Conventional surgical resection of the tumors was performed 1 week after RFA. The MRI findings were compared with histopathologic analyses to confirm the presence or absence of residual tumor. RESULTS: There was no residual enhancement in seven lesions on the postablation breast MRI scans. These findings were confirmed by negative histopathologic findings in the surgical specimens. The MRI scans of five patients showed small areas of irregular enhancement that corresponded to residual lesions. In the two remaining patients, we observed enhancement of almost the entire lesion, indicating that RFA had failed. CONCLUSION: Breast MRI is effective in detecting residual lesions after RFA in patients with IDC.


Assuntos
Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Carcinoma Ductal de Mama/patologia , Carcinoma Ductal de Mama/cirurgia , Ablação por Cateter/métodos , Imageamento por Ressonância Magnética/métodos , Neoplasia Residual/patologia , Adulto , Idoso , Ablação por Cateter/instrumentação , Meios de Contraste , Eletrodos , Desenho de Equipamento , Feminino , Humanos , Meglumina , Pessoa de Meia-Idade , Compostos Organometálicos , Estudos Prospectivos , Biópsia de Linfonodo Sentinela , Ultrassonografia de Intervenção
11.
PLoS One ; 16(3): e0248768, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33735315

RESUMO

BACKGROUND AND OBJECTIVES: It is well established that tumor-free margin is an important factor for reducing local recurrence and reoperation rates. This systematic review with meta-analysis of frozen section intraoperative margin assessment aims to evaluate the accuracy, and reoperation and survival rates, and to establish its importance in breast-conserving surgery. METHODS: A thorough review was conducted in all online publication-databases for the related literature up to March 2020. MeSH terms used: "Breast Cancer", "Segmental Mastectomy" and "Frozen Section". We included the studies that evaluated accuracy of frozen section, reoperation and survival rates. To ensure quality of the included articles, the QUADAS-2 tool (adapted) was employed. The assessment of publication bias by graphical and statistical methods was performed using the funnel plot and the Egger's test. The review protocol was registered in PROSPERO (CRD42019125682). RESULTS: Nineteen studies were deemed suitable, with a total of 6,769 cases. The reoperation rate on average was 5.9%. Sensitivity was 0.81, with a Confidence Interval of 0.79-0.83, p = 0.0000, I2 = 95.1%, and specificity was 0.97, with a Confidence Interval of 0.97-0.98, p = 0.0000, I-2 = 90.8%, for 17 studies and 5,615 cases. Accuracy was 0.98. Twelve studies described local recurrence and the highest cumulative recurrence rate in 3 years was 7.5%. The quality of the included studies based on the QUADAS-2 tool showed a low risk of bias. There is no publication bias (p = 0.32) and the funnel plot showed symmetry. CONCLUSION: Frozen section is a reliable procedure with high accuracy, sensitivity and specificity in intraoperative margin assessment of breast-conserving surgery. Therefore, this modality of margin assessment could be useful in reducing reoperation rates.


Assuntos
Secções Congeladas , Cuidados Intraoperatórios , Margens de Excisão , Mastectomia Segmentar , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/cirurgia , Feminino , Humanos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/cirurgia , Viés de Publicação , Curva ROC , Risco , Sensibilidade e Especificidade , Análise de Sobrevida , Adulto Jovem
12.
Clinics ; 78: 100155, 2023. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1421270

RESUMO

Abstract FOXO3a dysregulation is frequently implicated in tumorigenesis, and its inhibition can occur by several molecular mechanisms. Among these, post-transcriptional suppression by miRNAs has been associated with various cancers initiation. Here, we assessed the expression profiles of the most relevant miRNAs for breast tumorigenesis, using Luminal A (LA) and Triple-Negative (TN) breast cancer from Brazilian patients, by the quantitative real time-PCR method. Their potential prognostic role for the patients was also evaluated. We identified the miRNAs miR-96-5p and miR-182-5p, de-scribed as negative regulators of FOXO3A, with differential expression both in LA and TN tumors when compared to normal tissue. The miR-96-5p and miR-182-5p miRNAs were upregulated in LA (7.82 times, p < 0.005; 6.12 times, p < 0.005, respectively) and TN breast cancer samples (9.42 times, p < 0.0001; 8.51 times, p < 0.0001) compared to normal tissues. The samples with higher miR-96-5p and miR-182-5p expression (FR ≥ 4) were submitted for FOXO3a immunostaining. Reduced protein detection was observed in all of the tumors compared to normal tissues. The most prominent miRNA expression and FOXO3a protein suppression were observed in TN samples (p < 0.001), indicating the relevant role of these molecules in this tumor biology and clinical behavior. Our results corroborate the literature regarding to the relevance of FOXO3a in the breast cancer, and they open new perspectives for alternative target therapy options for Brazilian patients expressing both FOXO3a and its regulatory miRNAs.

13.
Rev Bras Ginecol Obstet ; 37(7): 308-13, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26247250

RESUMO

PURPOSE: To estimate the likelihood of axillary lymph node involvement for patients with early-stage breast cancer, based on a variety of clinical and pathological factors. METHODS: A retrospective analysis was done in hospital databases from 1999 to 2007. Two hundred thirty-nine patients were diagnosed with early-stage breast cancer. Predictive factors, such as patient age, tumor size, lymphovascular invasion, histological grade and immunohistochemical subtype were analyzed to identify variables that may be associated with axillary lymph node metastasis. RESULTS: Patients with tumors that are negative for estrogen receptor, progesterone receptor, and HER2 had approximately a 90% lower chance of developing lymph node metastasis than those with luminal A tumors (e.g., ER+ and/or PR+ and HER2-) - Odds Ratio: 0.11; 95% confidence interval: 0.01-0.88; p=0.01. Furthermore, the risk for lymph node metastasis of luminal A tumors seemed to decrease as patient age increased, and it was directly correlated with tumor size. CONCLUSION: The molecular classification of early-stage breast cancer using immunohistochemistry may help predicting the probability of developing axillary lymph node metastasis. Further studies are needed to optimize predictions for nodal involvement, with the aim of aiding the decision-making process for breast cancer treatment.


Assuntos
Neoplasias da Mama/patologia , Adulto , Axila , Neoplasias da Mama/classificação , Estudos Transversais , Feminino , Humanos , Imuno-Histoquímica , Metástase Linfática , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos
14.
Complement Ther Clin Pract ; 21(1): 1-6, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25682524

RESUMO

This postdoctoral study on the application of the RIME intervention in women that had undergone mastectomy and were in treatment, aimed to promote psychospiritual and social transformations to improve the quality of life, self-esteem and hope. A total of 28 women participated and were randomized into two groups. Brief Psychotherapy (PB) (average of six sessions) was administered in the Control Group, and RIME (three sessions) and BP (average of five sessions) were applied in the RIME Group. The quantitative results indicated a significant improvement (38.3%) in the Perception of Quality of Life after RIME according to the WHOQOL, compared both to the BP of the Control Group (12.5%), and the BP of the RIME Group (16.2%). There was a significant improvement in Self-esteem (Rosenberg) after RIME (14.6%) compared to the BP of the Control Group (worsened 35.9%), and the BP of the RIME Group (8.3%). The improvement in well-being, considering the focus worked on (Visual Analog Scale), was significant in the RIME Group (bad to good), as well as in the Control Group (unpleasant to good). The qualitative results indicated that RIME promotes creative transformations in the intrapsychic and interpersonal dimensions, so that new meanings and/or new attitudes emerge into the consciousness. It was observed that RIME has more strength of psychic structure, ego strengthening and provides a faster transformation that BP, therefore it can be indicated for crisis treatment in the hospital environment.


Assuntos
Neoplasias da Mama/psicologia , Imagens, Psicoterapia , Qualidade de Vida/psicologia , Terapia de Relaxamento , Espiritualidade , Estresse Psicológico/terapia , Brasil , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/cirurgia , Feminino , Humanos , Mastectomia , Psicoterapia Breve , Inquéritos e Questionários
15.
Tumori ; 90(6): 592-5, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15762362

RESUMO

AIM: The purpose of this study was to determine the effect of intraoperative evaluation of surgical margins (IESM) on the local recurrence rate, the occurrence of distant metastases and survival in invasive breast carcinoma (T1-2). METHODS: Two groups of patients were compared: a control group of 149 patients treated by classical quadrantectomy without IESM, and an IESM study group of 102 patients submitted to surgical treatment guided by this procedure. In the IESM group 64 quandrantectomies, 33 enlarged quadrantectomies and five mastectomies were performed. RESULTS: In the control group 17 local recurrences (11.4%), 49 distant metastases (39.2%) and 43 deaths (31.5%) occurred; in the IESM group there were no local recurrences, nine distant metastases occurred (8.8%) and three patients died (2%). Adjuvant treatment was the same in both groups. The survival curves were estimated by the Kaplan-Meier method and compared with the log-rank test. The curves were censored at 99 months of follow-up for adequate comparison because the follow-up period was different in the two groups. Significant differences in local recurrence-free survival and distant metastasis-free survival curves (P = 0.001) in favor of the study group were observed. The overall survival curve of the IESM group was also superior, but statistical analysis revealed only a strong tendency without significance (P = 0.06). CONCLUSION: Treatment of early infiltrating breast carcinoma guided by IESM results in a better prognosis.


Assuntos
Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Carcinoma Ductal de Mama/patologia , Carcinoma Ductal de Mama/cirurgia , Mastectomia Segmentar , Adulto , Idoso , Intervalo Livre de Doença , Feminino , Humanos , Metástase Linfática , Pessoa de Meia-Idade , Análise de Sobrevida , Resultado do Tratamento
16.
Tumori ; 89(1): 42-5, 2003.
Artigo em Inglês | MEDLINE | ID: mdl-12729360

RESUMO

AIMS AND BACKGROUND: Local recurrences in patients submitted to conservative breast treatment for early infiltrating breast carcinomas occur in 5-10% of the cases and are caused mainly by inadequate local resection and remaining residual malignant tissue. The present study was carried out to analyze the effect of intraoperative evaluation of surgical margins and its influence on the immediate surgical management of patients with early breast carcinomas (T1-T2) scheduled to undergo quadrantectomy. METHODS: A total of 102 cases were studied. After a classical quadrantectomy, intraoperative evaluation of surgical margins was done by means of macroscopic, cytological and histopathologic analysis. The margins of the resected tissue were examined to assure they were clear or to orient a wider resection. RESULTS: In 64 cases (62.7%), the extent of the quadrant resection was considered adequate and the margins were clear. In 38 cases (37.3%), surgical margins were considered inadequate. An enlarged quadrantectomy was immediately performed in 33 patients (32.4%) and mastectomies in 5 (4.9%). CONCLUSIONS: Intraoperative evaluation of surgical margins frequently modifies the surgical management of patients who were initially prepared to be submitted to a quadrantectomy, indicating the need for further resection in the form of an enlarged quadrantectomy or mastectomy.


Assuntos
Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Carcinoma/patologia , Carcinoma/cirurgia , Mastectomia Segmentar/métodos , Adenocarcinoma/patologia , Adenocarcinoma/cirurgia , Adenocarcinoma Mucinoso/patologia , Adenocarcinoma Mucinoso/cirurgia , Adulto , Idoso , Carcinoma Ductal de Mama/patologia , Carcinoma Ductal de Mama/cirurgia , Carcinoma Lobular/patologia , Carcinoma Lobular/cirurgia , Carcinoma Medular/patologia , Carcinoma Medular/cirurgia , Feminino , Humanos , Pessoa de Meia-Idade , Resultado do Tratamento
17.
Mastology (Impr.) ; 29(2): 108-113, abr.-jun.2019.
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1008469

RESUMO

Objective: The aim of this study was to evaluate survival after chest wall resection for breast cancer locoregional recurrence. Secondary endpoints were symptomatic control and safety of the procedure. Method: This was a retrospective review including all patients who underwent chest wall resection for breast cancer local recurrence at the Division of Thoracic Surgery of the School of Medicine of São Paulo University, from January 1998 to November 2011. Full thickness chest wall resection involving bones and/or soft tissues was performed to achieve macroscopical free margins. Results: Eighteen patients were included in this study with a mean followup of 83.5 months. The interval between mastectomy and chest wall recurrence (CWR) was 4.2 years (0.5 to 9 years). The resection was complete in 12 patients (66%) and incomplete in 6 (33%), in whose resection would involve amputation of an upper limb. Mean tumor size was 8.25 cm and resection of the costal arch was necessary in 10 patients. There was no operation death and after two years, 66% of patients were alive. Six patients died due to distant recurrence of breast cancer on patients who died to inflammatory acute abdomen. The mean survival among patients who died was 25.2 months (12 to 42 months). At the last follow up visit, eleven patients were alive. Conclusion: CWR for locally recurrent breast cancer is feasible and safe in selected patients, who did not develop metastatic disease, allowing good quality of life for a considerable period. Larger and prospective series are needed to endorse our findings.


Objetivo: O objetivo deste estudo foi avaliar a sobrevida após ressecção da parede torácica para recidiva locorregional de c âncer de mama. Desfechos secundários foram controle dos sintomas e a segurança do procedimento. Métodos: Estudo retrospectivo de todos os pacientes submetidos à ressecção da parede torácica para recidiva local do câncer de mama na Divisão de Cirurgia Torácica da Faculdade de Medicina da Universidade de São Paulo, de janeiro de 1998 a novembro de 2011. A ressecção da parede torácica foi realizada com espessura total podendo envolver ossos e/ou tecidos moles, a fim de atingir margens livres macroscópicas. Resultados: Dezoito pacientes foram incluídos neste estudo, com seguimento médio de 83,5 meses. O intervalo entre a mastectomia e a recidiva da parede torácica (RPT) foi de 4,2 anos (0,5 a 9 anos). A ressecção foi completa em 12 pacientes (66%) e incompleta em 6 (33%), cuja ressecção envolveria a amputação do membro superior. O tamanho médio do tumor foi de 8,25cm e a ressecção do arco costal foi necessária em 10 pacientes. Não houve óbito devido à operação e, após dois anos, 66% dos pacientes estavam vivos. Seis pacientes morreram devido à recorrência sistêmica do câncer de mama e uma paciente morreu devido a um abdome agudo inflamatório. A sobrevida média entre os pacientes que morreram foi de 25,2 meses (12 a 42 meses). Na última consulta de acompanhamento, onze pacientes estavam vivos. Conclusões: A RPT para a recidiva locorregional do câncer de mama é factível e segura em pacientes selecionados, que não desenvolveram doença metastática, permitindo boa qualidade de vida por um período considerável. São necessárias séries maiores e prospectivas para endossar nossas achados

18.
Rev Bras Ginecol Obstet ; 36(11): 503-508, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25493402

RESUMO

PURPOSE: To evaluate variations in the body mass index in patients undergoing adjuvant chemotherapy for breast cancer, and to associate these changes with patient's age and adjuvant chemotherapy regimen. METHODS: We performed a retrospective cohort study in order to correlate any variation in the body mass index before and after adjuvant chemotherapy with patient's age and adjuvant chemotherapy regimen. Patients who received any form of prior hormone therapy, such as tamoxifen or aromatase inhibitors, were excluded. We selected data for 196 patients with stage I to III breast cancer who were treated by radical or conservative surgery and received adjuvant chemotherapy at the Cancer Institute of the State of São Paulo, Brazil. RESULTS: Before adjuvant chemotherapy, 67.8% of patients were classified as overweight or obese according to their body mass indices. Around 66.3% (95% CI 59.7-73.0) of the patients exhibited an increase in the body mass index after adjuvant chemotherapy. The average age of all patients was 56.3±11.3 years. Participants whose body mass index increased were younger than those with no increase (54.7±11.1 versus 59.3±11.2 years; p=0.007). Patients were treated with the following adjuvant chemotherapy regimens: doxorubicin, cyclophosphamide, and paclitaxel (AC-T, 129 patients, 65.8%); 5-fluoracil, doxorubicin, and cyclophosphamide (36 patients, 18.4%); cyclophosphamide, methotrexate, and 5-fluoracil (16 patients, 8.2%); docetaxel and cyclophosphamide (7 patients, 3.6%); and other regimen (8 patients, 4.1%). The AC-T regimen showed a statistically significant association with increase in the body mass index (p<0.001 by ANOVA). CONCLUSIONS: Most patients with breast cancer showed an increase in the body mass index after adjuvant chemotherapy, especially after the AC-T chemotherapy regimen.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA