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2.
J Occup Environ Med ; 65(10): 868-879, 2023 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-37488771

RESUMO

OBJECTIVE: A more detailed understanding of unmet organizational support needs and workplace-based best practices for supporting cancer survivors is needed. METHODS: Ninety-four working breast cancer survivors responded to an open-ended survey question regarding the desired types of organizational support that were and were not received during early survivorship. We performed content-analysis of qualitative data. RESULTS: Major themes included instrumental support, emotional support, and time-based support. The need for flexible arrangements and reduced workloads was mostly met. Unmet needs included navigation/coordination, understanding/empathy, and time off for treatment and recovery. CONCLUSIONS: Organizational support can help cancer survivors manage their health and work roles, diminishing work-health conflict and turnover intent. Study findings can be used to design targeted interventions to fulfill cancer survivors' unmet organizational support needs, which may also apply to workers with other chronic health conditions.


Assuntos
Neoplasias da Mama , Sobreviventes de Câncer , Humanos , Feminino , Neoplasias da Mama/terapia , Sobreviventes de Câncer/psicologia , Necessidades e Demandas de Serviços de Saúde , Sobreviventes/psicologia , Inquéritos e Questionários
3.
Cardiooncology ; 9(1): 23, 2023 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-37106424

RESUMO

BACKGROUND: Biomarkers represent a potential tool to identify individuals at risk for anthracycline-induced cardiotoxicity (AICT) prior to symptom onset or left ventricular dysfunction. METHODS: This study examined the levels of cardiac and noncardiac biomarkers before, after the last dose of, and 3-6 months after completion of doxorubicin chemotherapy. Cardiac biomarkers included 5th generation high-sensitivity cardiac troponin T (cTnT), N-terminal pro-brain natriuretic peptide, growth/differentiation factor-15 (GDF-15), and soluble suppression of tumorigenesis-2 (sST2). Noncardiac biomarkers included activated caspase-1 (CASP-1), activated caspase-3, C-reactive protein, tumor necrosis factor-α, myeloperoxidase (MPO), galectin-3, and 8-hydroxy-2'-deoxyguanosine. Echocardiographic data (LVEF and LVGLS) were obtained at pre- and post-chemotherapy. Subanalysis examined interval changes in biomarkers among high (cumulative doxorubicin dose ≥ 250 mg/m2) and low exposure groups. RESULTS: The cardiac biomarkers cTnT, GDF-15, and sST2 and the noncardiac biomarkers CASP-1 and MPO demonstrated significant changes over time. cTnT and GDF-15 levels increased after anthracycline exposure, while CASP-1 and MPO decreased significantly. Subanalysis by cumulative dose did not demonstrate a larger increase in any biomarker in the high-dose group. CONCLUSIONS: The results identify biomarkers with significant interval changes in response to anthracycline therapy. Further research is needed to understand the clinical utility of these novel biomarkers.

4.
J Cancer Surviv ; 15(6): 890-905, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-33405056

RESUMO

PURPOSE: A substantial portion of breast cancer survivors are active in the workforce, yet factors that allow survivors to balance work with cancer management and to return to work are poorly understood. We examined breast cancer survivors' most valued/desired types of support in early survivorship. METHODS: Seventy-six employed breast cancer survivors answered an open-ended survey question assessing the most valued/desired support to receive from healthcare providers during early survivorship to manage work and health. Cutrona's (Journal of Social and Clinical Psychology 9:3-14, 1990) optimal matching theory and House's (1981) conceptualization of social support types informed our analyses. Data were content-analyzed to identify themes related to support, whether needed support was received or not, and the types of healthcare providers who provided support. RESULTS: We identified six themes related to types of support. Informational support was valued and mostly received by survivors, but they expected more guidance related to work. Emotional support was valued but lacking, attributed mainly to providers' lack of personal connection and mental health support. Instrumental (practical) support was valued but received by a small number of participants. Quality of life support to promote well-being and functionality was valued and often received. Other themes included non-specific support and non-support. CONCLUSIONS: This study expands our understanding of how breast cancer survivors perceive work-related support from healthcare professionals. Findings will inform targeted interventions designed to improve the support provided by healthcare professionals. IMPLICATIONS FOR CANCER SURVIVORS: Breast cancer survivors managing work and health challenges may benefit by having their unmet support needs fulfilled.


Assuntos
Neoplasias da Mama , Sobreviventes de Câncer , Neoplasias da Mama/terapia , Feminino , Humanos , Pesquisa Qualitativa , Qualidade de Vida , Apoio Social , Sobreviventes
5.
Sci Rep ; 9(1): 14863, 2019 10 16.
Artigo em Inglês | MEDLINE | ID: mdl-31619719

RESUMO

We developed a test to predict which patients will achieve pathological complete response (pCR) to neoadjuvant chemotherapy (NAC) and which will have residual disease (RD). Gene expression data from pretreatment biopsies of patients with all breast cancer subtypes were combined into a 519-patient cohort containing 177 TNBC patients. Two RNA classifiers of 16 genes each were sequentially applied to the total cohort, classifying patients into 3 distinct classes. The test performance was further validated in an independent 304-patient cohort. The test accurately identified 70.5% (79/112) of pCR and 83.5% (340/407) of RD patients in the total population, and 75.0% (45/60) of pCR and 75.2% (88/117) of RD patients in the TNBC subset. For the independent cohort, the test identified 91.5% RD patients in the total population and 86.2% RD patients in the TNBC subset. However, the identification of pCR in both total and TNBC population are as low as 21.1% and 30%, respectively. The TNBC RD patients were subdivided by our classifiers, with one class showing significantly higher levels of Ki67 expression and having significantly poorer survival rates than the other classes. This stratification of patients may allow predicted residual disease classes to be assigned an alternative therapy.


Assuntos
Regulação Neoplásica da Expressão Gênica , Terapia Neoadjuvante/métodos , RNA Neoplásico/genética , Receptor ErbB-2/genética , Neoplasias de Mama Triplo Negativas/diagnóstico , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Biomarcadores Tumorais/genética , Biomarcadores Tumorais/metabolismo , Feminino , Perfilação da Expressão Gênica , Humanos , Pessoa de Meia-Idade , Neoplasia Residual , Prognóstico , RNA Neoplásico/metabolismo , Receptor ErbB-2/metabolismo , Recidiva , Indução de Remissão , Projetos de Pesquisa , Análise de Sobrevida , Neoplasias de Mama Triplo Negativas/genética , Neoplasias de Mama Triplo Negativas/mortalidade
6.
Breast Cancer Res ; 20(1): 56, 2018 06 14.
Artigo em Inglês | MEDLINE | ID: mdl-29898762

RESUMO

BACKGROUND: Breast cancer pathologic complete response (pCR) to neoadjuvant chemotherapy (NAC) varies with tumor subtype. The purpose of this study was to identify an early treatment window for predicting pCR based on tumor subtype, pretreatment total hemoglobin (tHb) level, and early changes in tHb following NAC. METHODS: Twenty-two patients (mean age 56 years, range 34-74 years) were assessed using a near-infrared imager coupled with an Ultrasound system prior to treatment, 7 days after the first treatment, at the end of each of the first three cycles, and before their definitive surgery. Pathologic responses were dichotomized by the Miller-Payne system. Tumor vascularity was assessed from tHb; vascularity changes during NAC were assessed from a percentage tHb normalized to the pretreatment level (%tHb). After training the logistic prediction models using the previous study data, we assessed the early treatment window for predicting pathological response according to their tumor subtype (human epidermal growth factor receptor 2 (HER2), estrogen receptor (ER), triple-negative (TN)) based on tHb, and %tHb measured at different cycles and evaluated by the area under the receiver operating characteristic (ROC) curve (AUC). RESULTS: In the new study cohort, maximum pretreatment tHb and %tHb changes after cycles 1, 2, and 3 were significantly higher in responder Miller-Payne 4-5 tumors (n = 13) than non-or partial responder Miller-Payne 1-3 tumors (n = 9). However, no significance was found at day 7. The AUC of the predictive power of pretreatment tHb in the cohort was 0.75, which was similar to the performance of the HER2 subtype as a single predictor (AUC of 0.78). A greater predictive power of pretreatment tHb was found within each subtype, with AUCs of 0.88, 0.69, and 0.72, in the HER2, ER, and TN subtypes, respectively. Using pretreatment tHb and cycle 1 %tHb, AUC reached 0.96, 0.91, and 0.90 in HER2, ER, and TN subtypes, respectively, and 0.95 regardless of subtype. Additional cycle 2 %tHb measurements moderately improved prediction for the HER2 subtype but did not improve prediction for the ER and TN subtypes. CONCLUSIONS: By combining tumor subtypes with tHb, we predicted the pCR of breast cancer to NAC before treatment. Prediction accuracy can be significantly improved by incorporating cycle 1 and 2 %tHb for the HER2 subtype and cycle 1 %tHb for the ER and TN subtypes. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02092636 . Registered in March 2014.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Neoplasias da Mama/tratamento farmacológico , Mama/efeitos dos fármacos , Terapia Neoadjuvante , Adulto , Idoso , Mama/patologia , Neoplasias da Mama/genética , Neoplasias da Mama/patologia , Quimioterapia Adjuvante , Feminino , Hemoglobinas/genética , Humanos , Imuno-Histoquímica , Pessoa de Meia-Idade , Receptor ErbB-2/genética , Receptores de Estrogênio , Resultado do Tratamento
7.
Cureus ; 9(7): e1481, 2017 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-28944120

RESUMO

Male breast cancer, although rare, is on the rise. Prospective clinical trials are unlikely and current management mirrors that of post-menopausal women. Neoadjuvant chemotherapy is widely used and pathologic complete response (pCR) predicts long-term survival. The addition of dual HER2 (human epidermal growth factor receptor 2) blockade has shown the highest pCR rates; however, there is no published data of this approach in men. Also, newer monitoring tools are necessary during a neoadjuvant therapy to help personalize treatment.  Here, we describe the case of a 64-year-old man with Stage IIB (tumor size 2 to 5 cm with involvement of axillary lymph nodes), high-grade estrogen receptor, progesterone receptor, and HER2-positive invasive ductal carcinoma with a germline breast cancer susceptibility gene 1 (BRCA1) mutation who was treated in a neoadjuvant fashion with dual HER2 blockade and platinum-based chemotherapy regimen. A novel predictive tool, ultrasound-localized diffuse optical tomography, was used to monitor his progress during treatment.

8.
J Thorac Imaging ; 32(6): 365-369, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28692525

RESUMO

PURPOSE: The aim of this study was to assess the left ventricular (LV) remodeling response to chemotherapy in low-cardiac-risk women with newly diagnosed nonmetastatic breast cancer. Cardiotoxic effects of chemotherapy are an increasing concern. To effectively interpret cardiac imaging studies performed for screening purposes in patients undergoing cancer therapy it is necessary to understand the normal changes in structure and function that may occur. METHODS: Twenty women without preexisting cardiovascular disease, of a mean age of 50 years, newly diagnosed with nonmetastatic breast cancer and treated with anthracycline or trastuzumab, were prospectively enrolled and evaluated at four time points (at baseline, during chemotherapy, 2 weeks after chemotherapy, and 6 months after chemotherapy) using cardiac magnetic resonance imaging, blood samples, and a clinical questionnaire. RESULTS: Over a 6-month period, the left ventricular ejection fraction (%) decreased (64.15±5.30 to 60.41±5.77, P<0.002) and the LV end-diastolic (mm) and end-systolic (mm) volumes increased (124.73±20.25 to 132.21±19.33, P<0.04 and 45.16±11.88 to 52.57±11.65, P<0.00, respectively). The LV mass (g) did not change (73.06±11.51 to 69.21±15.3, P=0.08), but the LV mass to LVEDV ratio (g/mm) decreased (0.594±0.098 to 0.530±0.124, P<0.04). CONCLUSIONS: In low-cardiac-risk women with nonmetastatic breast cancer, the increased LV volume and a mildly decreased left ventricular ejection fraction during and after chemotherapy do not seem to be associated with laboratory or clinical evidence of increased risk for heart failure.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Ventrículos do Coração/diagnóstico por imagem , Ventrículos do Coração/fisiopatologia , Imageamento por Ressonância Magnética/métodos , Remodelação Ventricular/efeitos dos fármacos , Quimioterapia Adjuvante , Feminino , Ventrículos do Coração/efeitos dos fármacos , Humanos , Estudos Longitudinais , Pessoa de Meia-Idade , Projetos Piloto , Estudos Prospectivos
10.
Radiology ; 280(2): 387-97, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-26937708

RESUMO

Purpose To investigate ultrasonography (US)-guided diffuse optical tomography to distinguish the functional differences of hemoglobin concentrations in a wide range of malignant and benign breast lesions and to improve breast cancer diagnosis in conjunction with conventional US. Materials and Methods The study protocol was approved by the institutional review boards and was HIPAA compliant. Written informed consent was obtained from all patients. Patients (288 women; mean age, 50 years; range, 17-94 years) who underwent US-guided biopsy were imaged with a handheld US and optical probe. The US-imaged lesion was used to guide reconstruction of light absorption maps at four wavelengths, and total hemoglobin (tHb), oxygenated hemoglobin (oxyHb), and deoxygenated hemoglobin (deoxyHb) were computed from the absorption maps. A threshold (80 µmol/L) was chosen on the basis of this study population. Two radiologists retrospectively evaluated US images on the basis of the US Breast Imaging Reporting and Data System lexicon, and a lesion was considered malignant when a score of 4C or 5 was given or a lesion had tHb greater than 80 µmol/L. A two-sample t test was used to calculate significance between groups, and Spearman ρ was computed between hemoglobin parameters and tumor pathologic grades. Results Three tumors were Tis, 37 were T1, 19 were T2-T4 carcinomas, and 233 were benign lesions. The mean maximum tHb, oxyHb, and deoxyHb of Tis-T1 and T2-T4 groups were 89.3 µmol/L ± 20.2 (standard deviation), 65.0 µmol/L ± 20.8, and 33.5 µmol/L ± 11.3, respectively, and 84.7 µmol/L ± 32.8, 57.1 µmol/L ± 19.8, and 34.7 µmol/L ± 18.9, respectively. The corresponding values of benign lesions were 54.1 µmol/L ± 23.5, 38.0 µmol/L ± 17.4, and 25.2 µmol/L ± 13.8, respectively. The mean maximum tHb, oxyHb, and deoxyHb were significantly higher in the malignant groups than the benign group (P <.001, <.001, and .041, respectively). For malignant lesions, the mean maximum tHb moderately correlated with tumor histologic grade and nuclear grade (ρ = 0.283 and 0.315, respectively). The mean maximum oxyHb moderately correlated with tumor nuclear grade (ρ = 0.267). When radiologists' US diagnosis and the tHb were used together, the sensitivity, specificity, positive predictive value, and negative predictive value were 96.6%-100%, 77.3%-83.3%, 52.7%-59.4%, and 99.0%-100%, respectively, for the combined malignant group. Conclusion The tHb and oxyHb correlate with breast cancer pathologic grade and can be used as an adjunct to US to improve sensitivity and negative predictive value in breast cancer diagnosis. (©) RSNA, 2016 Online supplemental material is available for this article.


Assuntos
Doenças Mamárias/diagnóstico por imagem , Tomografia Óptica/métodos , Ultrassonografia de Intervenção/métodos , Ultrassonografia Mamária/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Mama/diagnóstico por imagem , Neoplasias da Mama/diagnóstico por imagem , Feminino , Humanos , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Adulto Jovem
11.
NPJ Breast Cancer ; 2: 16037, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-28721390

RESUMO

The proteasome inhibitor bortezomib enhances the effect of the selective estrogen receptor (ER) downregulator (SERD) fulvestrant by causing accumulation of cytoplasmic ER aggregates in preclinical models. The purpose of this trial was to determine whether bortezomib enhanced the effectiveness of fulvestrant. One hundred eighteen postmenopausal women with ER-positive metastatic breast cancer resistant to aromatase inhibitors (AIs) were randomized to fulvestrant alone (Arm A-500 mg intramuscular (i.m.) day -14, 1, 15 in cycle 1, and day 1 of additional cycles) or in combination with bortezomib (Arm B-1.6 mg/m2 intravenous (i.v.) on days 1, 8, 15 of each cycle). The study was powered to show an improvement in median progression-free survival (PFS) from 5.4 to 9.0 months and compare PFS rates at 6 and 12 months (α=0.10, ß=0.10). Patients with progression on fulvestrant could cross over to the combination (arm C). Although there was no difference in median PFS (2.7 months in both arms), the hazard ratio for PFS in Arm B versus Arm A (referent) was 0.73 (95% confidence interval (CI)=0.49, 1.09, P=0.06, 1-sided log-rank test, significant at the prespecified 1-sided 0.10 α level). At 12 months, the PFS proportion in Arm A and Arm B was 13.6% and 28.1% (P=0.03, 1-sided χ2-test; 95% CI for difference (14.5%)=-0.06, 29.1%). Of 27 patients on arm A who crossed over to the combination (arm C), 5 (18%) were progression-free for at least 24 weeks. Bortezomib likely enhances the effectiveness of fulvestrant in AI-resistant, ER-positive metastatic breast cancer by reducing acquired resistance, supporting additional evaluation of proteasome inhibitors in combination with SERDs.

12.
Ultrason Imaging ; 38(1): 5-18, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25887527

RESUMO

In this manuscript, we review the current progress of utilizing ultrasound-guided diffuse optical tomography (US-guided DOT) for predicting and monitoring neoadjuvant chemotherapy (NAC) outcomes of breast cancer patients. We also report the recent advance on optical tomography systems toward portable and robust clinical use at multiple clinical sites. The first patient who has been closely monitored before NAC, at day 2, day 8, end of first three cycles of NAC, and before surgery is given as an example to demonstrate the potential of US-guided DOT technique.


Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/tratamento farmacológico , Terapia Neoadjuvante , Tomografia Óptica/métodos , Ultrassonografia Mamária/métodos , Adulto , Neoplasias da Mama/diagnóstico por imagem , Quimioterapia Adjuvante , Feminino , Humanos , Resultado do Tratamento
13.
Artigo em Inglês | MEDLINE | ID: mdl-28138627

RESUMO

A 70-year-old woman presented to our clinic in 2007 after an evaluation for dysphagia revealed a poorly differentiated adenocarcinoma of the gastroesophogeal junction. Workup for metastatic disease was negative at presentation. She had a complete response to treatment, which was completed in November 2007. She continued to follow up regularly until 2011 when she presented again with neurologic symptoms and was found to have an isolated brain metastasis. She underwent resection of the lesion, and pathology was consistent with her originally diagnosed gastric cancer. The patient received adjuvant radiation therapy, however, unfortunately had rapid progression of disease 1 month later and was transitioned to hospice. Here, we report a rare case of late recurrence of gastric cancer with isolated brain metastasis with a review of literature.

14.
J Oncol Pharm Pract ; 21(6): 474-7, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24993705

RESUMO

Filgrastim and pegfilgrastim are granulocyte colony-stimulating factor products, which have been part of the supportive treatment of cancer patients for years to increase the white blood cell count and absolute neutrophil count with the objective of preventing neutropenic fever in patients at risk because of chemotherapy. Pegfilgrastim is a glycosylated form of filgrastim with a prolonged duration of effect, a reduced renal clearance, and relatively fewer side effects. We present a patient with early breast cancer who developed a rash more than a week after the use of pegfilgrastim. Clinicians must be aware of the possibility of a delayed hypersensitivity reaction as the application of this drug is increasing and an adverse event can result in delay of chemotherapy treatment.


Assuntos
Fator Estimulador de Colônias de Granulócitos/efeitos adversos , Hipersensibilidade Tardia/etiologia , Neoplasias da Mama/complicações , Neoplasias da Mama/tratamento farmacológico , Carcinoma Ductal de Mama/complicações , Carcinoma Ductal de Mama/tratamento farmacológico , Toxidermias/patologia , Feminino , Filgrastim , Fator Estimulador de Colônias de Granulócitos/uso terapêutico , Humanos , Hipersensibilidade Tardia/patologia , Contagem de Leucócitos , Pessoa de Meia-Idade , Neutropenia/prevenção & controle , Polietilenoglicóis , Proteínas Recombinantes/efeitos adversos , Proteínas Recombinantes/uso terapêutico , Pele/patologia
15.
Breast Cancer Res ; 16(5): 456, 2014 Oct 28.
Artigo em Inglês | MEDLINE | ID: mdl-25349073

RESUMO

INTRODUCTION: The purpose of this study is to develop a prediction model utilizing tumor hemoglobin parameters measured by ultrasound-guided near-infrared optical tomography (US-NIR) in conjunction with standard pathologic tumor characteristics to predict pathologic response before neoadjuvant chemotherapy (NAC) is given. METHODS: Thirty-four patients' data were retrospectively analyzed using a multiple logistic regression model to predict response. These patients were split into 30 groups of training (24 tumors) and testing (12 tumors) for cross validation. Tumor vascularity was assessed using US-NIR measurements of total hemoglobin (tHb), oxygenated (oxyHb) and deoxygenated hemoglobin (deoxyHb) concentrations acquired before treatment. Tumor pathologic variables of tumor type, Nottingham score, mitotic index, the estrogen and progesterone receptors and human epidermal growth factor receptor 2 acquired before NAC in biopsy specimens were also used in the prediction model. The patients' pathologic response was graded based on the Miller-Payne system. The overall performance of the prediction models was evaluated using receiver operating characteristic (ROC) curves. The quantitative measures were sensitivity, specificity, positive and negative predictive values (PPV and NPV) and the area under the ROC curve (AUC). RESULTS: Utilizing tumor pathologic variables alone, average sensitivity of 56.8%, average specificity of 88.9%, average PPV of 84.8%, average NPV of 70.9% and average AUC of 84.0% were obtained from the testing data. Among the hemoglobin predictors with and without tumor pathological variables, the best predictor was tHb combined with tumor pathological variables, followed by oxyHb with pathological variables. When tHb was included with tumor pathological variables as an additional predictor, the corresponding measures improved to 79%, 94%, 90%, 86% and 92.4%, respectively. When oxyHb was included with tumor variables as an additional predictor, these measures improved to 77%, 85%, 83%, 83% and 90.6%, respectively. The addition of tHb or oxyHb significantly improved the prediction sensitivity, NPV and AUC compared with using tumor pathological variables alone. CONCLUSIONS: These initial findings indicate that combining widely used tumor pathologic variables with hemoglobin parameters determined by US-NIR may provide a powerful tool for predicting patient pathologic response to NAC before the start of treatment. TRIAL REGISTRATION: ClincalTrials.gov ID: NCT00908609 (registered 22 May 2009).


Assuntos
Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/sangue , Neoplasias da Mama/tratamento farmacológico , Carcinoma Ductal de Mama/sangue , Carcinoma Ductal de Mama/tratamento farmacológico , Quimioterapia Adjuvante , Diagnóstico por Imagem , Feminino , Hemoglobinas/metabolismo , Humanos , Pessoa de Meia-Idade , Terapia Neoadjuvante , Curva ROC , Estudos Retrospectivos , Espectroscopia de Luz Próxima ao Infravermelho , Resultado do Tratamento
16.
Conn Med ; 78(3): 143-8, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24772830

RESUMO

Hemophagocytic lymphohistio-cytosis (HLH) is a rare but serious medical condition with variable clinical outcome. HLH presents real diagnostic and therapeutic challenges to the treating physician despite the major advances in molecular laboratory testing and the immune-chemotherapeutic interventions. Here we present a unique case ofHLH in the setting of hemoglobin H disease provoked by disseminated Yersinia enterocolitica infection. The hemoglobinopathy led to an iron overload state, which provided an optimal milieu for the siderophilic bacterium, Y. enterocolitica, to disseminate. This over whelming infection triggered an uncontrolled and dysregulated inflammatory cytokine cascade with resulting clinical sequelae. The patient was treated conservatively without immunosuppressive therapy and recovered quickly. The long-term outcome of such cases needs further definition.


Assuntos
Linfo-Histiocitose Hemofagocítica/etiologia , Linfo-Histiocitose Hemofagocítica/fisiopatologia , Yersiniose/complicações , Yersinia enterocolitica , Antibacterianos/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Yersiniose/tratamento farmacológico
17.
Nutr Cancer ; 66(1): 68-76, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24274259

RESUMO

Postmenopausal breast cancer survivors are living longer; however, a common class of drugs, aromatase inhibitors (AI), depletes estrogen levels, promotes bone loss, and heightens fracture risk. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) may offset AI effects to bone because of the known effects on cellular processes of bone turnover. Therefore, we hypothesized that 4 g of EPA and DHA daily for 3 mo would decrease bone turnover in postmenopausal breast cancer survivors on AI therapy in a randomized, double-blind, placebo controlled pilot study that included 38 women. At baseline and 3 mo, serum fatty acids, bone turnover, and inflammatory markers were analyzed. Serum EPA and DHA, total and long-chain (LC) omega (n)-3 polyunsaturated fatty acids (PUFA) increased, whereas arachidonic acid, total and LC n-6 PUFA, and the LC n-6:n-3 PUFA ratio decreased compared to placebo (all P < .05). Bone resorption was inhibited in the fish oil responders compared to placebo (P < .05). Inflammatory markers were not altered. This short-term, high-dose fish oil supplementation study's findings demonstrate that fish oil can reduce bone resorption; however, longer-term studies are needed to assess bone density preservation and to explore mechanistic pathways in this population at high risk for bone loss.


Assuntos
Reabsorção Óssea/tratamento farmacológico , Suplementos Nutricionais , Ácidos Docosa-Hexaenoicos/administração & dosagem , Ácido Eicosapentaenoico/administração & dosagem , Idoso , Idoso de 80 Anos ou mais , Inibidores da Aromatase/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Ácidos Docosa-Hexaenoicos/sangue , Relação Dose-Resposta a Droga , Método Duplo-Cego , Ácido Eicosapentaenoico/sangue , Ingestão de Energia , Ácidos Graxos/sangue , Feminino , Óleos de Peixe/administração & dosagem , Humanos , Pessoa de Meia-Idade , Projetos Piloto , Pós-Menopausa , Sobreviventes
18.
Radiology ; 266(2): 433-42, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23264349

RESUMO

PURPOSE: To assess initial breast tumor hemoglobin (Hb) content before the initiation of neoadjuvant chemotherapy, monitor the Hb changes at the end of each treatment cycle, and correlate these findings with tumor pathologic response. MATERIALS AND METHODS: The HIPAA-compliant study protocol was approved by the institutional review boards of both institutions. Written informed consent was obtained from all patients. Patients who were eligible for neoadjuvant chemotherapy were recruited between December 2007 and May 2011, and their tumor Hb content was assessed by using a near-infrared imager coupled with an ultrasonography (US) system. Thirty-two women (mean age, 48 years; range, 32-82 years) were imaged before treatment, at the end of every treatment cycle, and before definitive surgery. The patients were graded in terms of their final pathologic response on the basis of the Miller-Payne system as nonresponders and partial responders (grades 1-3) and near-complete and complete responders (grades 4 and 5). Tumor vascularity was assessed from total Hb (tHb), oxygenated Hb (oxyHb), and deoxygenated Hb (deoxyHb) concentrations. Tumor vascularity changes during treatment were assessed from percentage tHb normalized to the pretreatment level. A two-sample two-sided t test was used to calculate the P value and to evaluate statistical significance between groups. Bonferroni-Holm correction was applied to obtain the corrected P value for multiple comparisons. RESULTS: There were 20 Miller-Payne grade 1-3 tumors and 14 grade 4 or 5 tumors. Mean maximum pretreatment tHb, oxyHb, and deoxyHb levels were significantly higher in grade 4 and 5 tumors than in grade 1-3 tumors (P = .005, P = .008, and P = .017, respectively). The mean percentage tHb changes were significantly higher in grade 4 or 5 tumors than in grade 1-3 tumors at the end of treatment cycles 1-3 (P = .009 and corrected P = .009, P = .002 and corrected P = .004, and P < .001 and corrected P < .001, respectively). DISCUSSION: These findings indicate that initial tumor Hb content is a strong predictor of final pathologic response. Additionally, the tHb changes during early treatment cycles can further predict final pathologic response.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/patologia , Neovascularização Patológica/tratamento farmacológico , Neovascularização Patológica/patologia , Espectroscopia de Luz Próxima ao Infravermelho , Ultrassonografia de Intervenção , Adulto , Idoso , Idoso de 80 Anos ou mais , Algoritmos , Anticorpos Monoclonais Humanizados/administração & dosagem , Bevacizumab , Biópsia , Neoplasias da Mama/diagnóstico por imagem , Capecitabina , Carboplatina/administração & dosagem , Ciclofosfamida/administração & dosagem , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Doxorrubicina/administração & dosagem , Feminino , Fluoruracila/administração & dosagem , Fluoruracila/análogos & derivados , Humanos , Interpretação de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Terapia Neoadjuvante , Gradação de Tumores , Neovascularização Patológica/diagnóstico por imagem , Paclitaxel/administração & dosagem , Curva ROC , Trastuzumab , Resultado do Tratamento
19.
ISRN Oncol ; 2012: 898327, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22830048

RESUMO

Purpose. To investigate symptom distress, quality of life, affective states, and inflammatory biomarkers before and after breast biopsy in women undergoing breast biopsy. Methods. A convenience sample of 47 women undergoing breast biopsy was assessed at the pre- and post-biopsy visits. The assessments included evaluation of fatigue, anxiety, depression, sleep disturbances, positive and negative affect, quality of life using validated self report measures, and a blood draw to determine markers of inflammation. Results. At the postbiopsy visit, a total of 15 participants were diagnosed with breast cancer, and 32 participants received negative biopsy result. The mean anxiety and sleep disturbances scores were in the clinically significant range for the total sample and for the biopsy positive (BC+) and biopsy negative (BC-) subgroups at both time points. For both subgroups, anxiety and sleep disturbances scores did not change significantly from pre- to post-biopsy. A subpopulation of participants in both groups reported moderate-to-severe anxiety, depression and fatigue levels at both time points. The inflammatory markers did not show consistent associations with psychosocial symptoms. Conclusions. A subset of participants in BC+ and BC- subgroups experience heightened symptom distress and negative impact on quality of life at both pre- and post-biopsy time points.

20.
Tex Heart Inst J ; 39(3): 424-7, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22719160

RESUMO

Doxorubicin, an anthracycline antibiotic commonly used as a chemotherapeutic agent for breast cancer, is well known to cause cardiotoxicity. We report the case of an active, otherwise healthy 57-year-old breast cancer survivor who, 17 years after chemotherapy, presented with symptoms of overt heart failure. She had no cardiac risk factors, and neither laboratory nor imaging findings suggested myocarditis or dilated cardiomyopathy. Echocardiographic findings and differential diagnosis led us to attribute her condition to late doxorubicin-induced cardiomyopathy. By virtue of tapered medical therapy, her left ventricular ejection fraction improved from 0.20 to 0.55 in 8 months, and she was asymptomatic after 1 year. The reversibility of left ventricular dysfunction in our patient and the very late appearance of cardiotoxicity secondary to doxorubicin therapy raise questions about the pathogenesis and prevalence of late doxorubicin-induced cardiomyopathy and how to improve outcomes in patients who present with related symptoms of heart failure.


Assuntos
Antibióticos Antineoplásicos/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , Cardiomiopatias/induzido quimicamente , Doxorrubicina/efeitos adversos , Neoplasias da Mama/cirurgia , Cardiomiopatias/diagnóstico , Cardiomiopatias/tratamento farmacológico , Cardiomiopatias/fisiopatologia , Fármacos Cardiovasculares/uso terapêutico , Quimioterapia Adjuvante , Eletrocardiografia , Feminino , Insuficiência Cardíaca/induzido quimicamente , Insuficiência Cardíaca/fisiopatologia , Humanos , Imageamento por Ressonância Magnética , Mastectomia Segmentar , Pessoa de Meia-Idade , Recuperação de Função Fisiológica , Volume Sistólico , Fatores de Tempo , Resultado do Tratamento , Disfunção Ventricular Esquerda/induzido quimicamente , Disfunção Ventricular Esquerda/fisiopatologia , Função Ventricular Esquerda
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