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1.
Lymphology ; 55(4): 167-177, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-37553005

RESUMO

Breast-conserving surgery (BCS) is the standard of care for early-stage breast cancer. We retrospectively enrolled 530 patients (mean age: 62.96 ± 12.69 years) undergoing BCS between January 1, 2018, and December 31, 2019. During the COVID-19 pandemic, all patients with at least 1 year of follow-up were telephonically asked after surgery to provide clinical signs and symptoms attributable to postoperative breast cancer-related lymphedema of the breast (BCRL-B). Thirty-one (5.8%) patients reported breast edema and were visited to measure the tissue dielectric constant (TDC) and to assess the induration of the skin. There was a difference seen in treatment with lumpectomy + ALND performed more frequently in patients with (29%) than without (12%) BCRL-B. In the subgroup of patients with BCRL-B (n=31), significantly higher values of local total water were calculated in the nine patients who underwent Lump + ALND procedure (1.86 ± 0.48 vs. 1.48 ± 0.38; p = 0.046). Among patients with BCRL-B (n=31), in eight patients (25.8%) tissue induration measured with SkinFibroMeter was >0.100 N, thus suggesting tissue fibrosis. Cumulative survival probability at 1-year after surgery was 0.992. No statistical differences in 1-year survival after surgery were found for type of surgery (p = 0.890) or absence/presence of BCRL-B (p = 0.480). In univariate logistic regression, only lumpectomy + ALND surgery (p = 0.009) and any subsequent axillary lymph node removal surgery (p = 0.003) were associated with BCRL-B. Both of these variables were also found to be statistically significant in the multivariate regression model. Further prospective research is warranted to analyze potentential predictors of BCRL-B and to reduce/ prevent this complication.

2.
Eur J Surg Oncol ; 46(10 Pt A): 1861-1866, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32723610

RESUMO

Breast cancer treatment has deeply changed in the last decades, since clinical and oncological cure cannot be achieved without patient's satisfaction in term of aesthetic outcomes. Several methods have been proposed to objectively assess these results. However, Italian breast centers have not yet agreed on measurable, reproducible and validated aesthetic outcome indicators to monitor their performance. METHODS: The study was designed and conducted by Senonetwork, a not-for-profit association of Italian breast centers. Ten breast centers were selected based on specific eligibility criteria. This multicentre observational prospective study recruited 6515 patients with diagnosis of in situ or invasive breast cancer who underwent breast surgery in the years 2013-2016. Thirteen indicators of aesthetic results and of related quality of care were analyzed. Data collection and analysis were conducted using a common study database. RESULTS: On average, seven out of ten centers were able to collect data on the proposed indicators with a proportion of missing values < 25%. By expert consensus based on study results, some seven indicators have been defined as "mandatory" while the remaining six have been defined as "recommended" because they require further refinement before they can be proposed for monitoring aesthetic outcomes or because there are doubts on the feasibility of data collection. The minimum standard is reached for 5 of 13 indicators. This finding and the wide range between centers reveal that there is ample room for improvement. CONCLUSIONS: From the present study useful measurable aesthetic parameters have emerged, leading to the definition of target objectives that breast centers can use for benchmarking and improvement of quality of care.


Assuntos
Neoplasias da Mama/cirurgia , Mamoplastia/métodos , Mastectomia Segmentar/métodos , Mastectomia/métodos , Aparência Física , Indicadores de Qualidade em Assistência à Saúde , Implante Mamário/métodos , Cicatriz , Coleta de Dados , Estética , Feminino , Humanos , Itália , Mamilos , Tratamentos com Preservação do Órgão , Avaliação de Resultados da Assistência ao Paciente , Qualidade da Assistência à Saúde , Pigmentação da Pele , Retalhos Cirúrgicos , Alicerces Teciduais
4.
Clin Radiol ; 74(12): 974.e1-974.e6, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31521327

RESUMO

AIM: To compare a standard intra-operative mammography (IM) device with digital breast tomosynthesis using a dedicated device (Mozart system) in the evaluation of surgical margins at first excision. MATERIALS AND METHODS: The study received institutional review board approval and written informed consent was obtained from participants. From January 2018 to December 2018, a prospective analysis of the images of IM device and intra-operative digital breast tomosynthesis with a dedicated device (Mozart system) in n=89 breast cancer patients (average patients age: 58 years, age range: 35-76 years) was undertaken. Images were evaluated by two expert breast radiologists independently of each other and blinded to each other's interpretation, who indicated the positive cases requiring surgical re-excision intra-operatively. RESULTS: Mean cancer size was 12.5±4.5 mm. Radiological signs of the lesions were microcalcifications (n=71), nodules (n=10), and architectural distortions (n=8). A total of 20/89 (17%) patients underwent intra-operative re-excision for positive margins. Intra-operative digital breast tomosynthesis with a dedicated device and IM showed discrepancies in 15/89 cases (17%). Mozart system results informed the necessity to perform a re-excision (n=15). Overall, receiver operating characteristic (ROC) curve analysis showed and area under the ROC curve (AUC) of 0.82 for the Mozart system versus 0.65 for IM. ROC analysis of radiological findings with microcalcifications showed an AUC of 0.92 for the Mozart system versus 0.74 for IM, whereas AUC in cases with no microcalcifications were 0.87 and 0.75, respectively. CONCLUSION: Intra-operative digital breast tomosynthesis with a dedicated device provides more information (better accuracy) than IM and facilitated a reduction in re-excision rates.


Assuntos
Neoplasias da Mama/diagnóstico por imagem , Mamografia , Margens de Excisão , Adulto , Idoso , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Calcinose/diagnóstico por imagem , Feminino , Humanos , Período Intraoperatório , Mamografia/métodos , Mastectomia Segmentar/métodos , Pessoa de Meia-Idade
5.
Breast ; 45: 56-60, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30877870

RESUMO

BACKGROUND: Breast angiosarcoma is a malignant mesenchymal neoplasm, which accounts for approximately 2% of all soft tissue sarcomas. Secondary breast angiosarcoma (SBA) may be related to chronic lymphedema after a mastectomy with lymph node dissection (Stewart Treves syndrome) and previous radiotherapy for complications from breast radiation treatment. It is a very rare condition; therefore, diagnosis and management are still a challenge. METHODS: The ANISC collected SBA data by means of a survey sent to all Italian breast centres in the ANISC. The clinicopathological characteristics and the management of this disease were analysed. RESULTS: Twenty-four centres participated in this survey in which 112 cases of SBA were analysed. The median age of the women with SBA was 68.9 years and it appeared approximately 90 months after the first irradiation for breast cancer. In 92% of cases, a mastectomy was performed without axillary dissection for those patients having a high grade of SBA (74.2%). The prognosis was worse in the high-grade cases (overall survival-OS: 36 months) as compared with the low-grade cases (OS: 48 months). After a follow-up of 5 years, 50.5% of the patients were still alive. Disease-free survival (DFS) was 35 months, and there were no differences between the groups of patients with either high- or low-grade histology. CONCLUSIONS: Secondary breast angiosarcoma is a very aggressive disease associated with a short survival outcome. The surgical approach still remains an important step in the course of treatment; furthermore, an accurate histological examination is helpful in establishing the prognosis of the patient. A mastectomy is mandatory. A longer OS was observed in patients with low-grade angiosarcoma as compared to high-grade angiosarcoma (C.I. 40-57 vs. 31-41 months).


Assuntos
Neoplasias da Mama/mortalidade , Hemangiossarcoma/mortalidade , Segunda Neoplasia Primária/mortalidade , Complicações Pós-Operatórias/mortalidade , Idoso , Neoplasias da Mama/etiologia , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Feminino , Hemangiossarcoma/complicações , Hemangiossarcoma/etiologia , Hemangiossarcoma/cirurgia , Humanos , Itália/epidemiologia , Excisão de Linfonodo/efeitos adversos , Linfangiossarcoma/complicações , Mastectomia/mortalidade , Segunda Neoplasia Primária/etiologia , Segunda Neoplasia Primária/cirurgia , Complicações Pós-Operatórias/etiologia , Prognóstico , Estudos Retrospectivos , Cirurgiões/estatística & dados numéricos , Inquéritos e Questionários
6.
Eur J Surg Oncol ; 44(8): 1157-1163, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29653781

RESUMO

The Italian Society of Surgical Oncology (SICO) Breast Oncoteam developed a survey to explore the state of the art of neoadjuvant treatment for breast cancer in Italy, specifically focusing on cases treated during the two-year period 2014-2015. A questionnaire was sent to Italian Breast Units with a minimum of 150 new breast cancer cases treated/year according to the Senonetwork directory and to the SICO Breast Oncoteam Breast Unit network. A total of 23/107 Breast Units submitted the survey, reporting a total amount of 20156 cases of breast carcinoma (17241 invasive, 2915 in situ) treated in the biennium, corresponding approximately to 20% of newly diagnosed breast cancers in Italy. In the United States, medical treatment before surgery for breast cancer is indicated in about 22.7% of newly diagnosed cases according to the National Cancer Database, while a German study reported approximately 20% of cases treated with neoadjuvant therapy. In our survey, a total of 1673/17241 cases (9.7%) were treated with neoadjuvant therapy, ranging from 2.9% to 23.6% according to different centres, showing heterogeneity in neoadjuvant treatment indications, even in multidisciplinary breast units. Better resources should be engaged to achieve a standardised quality indicator for neoadjuvant treatment, and this indicator could be included among the European Society of Breast Cancer Specialists (EUSOMA) quality indicators. In the near future, we plan to develop a second survey to better test improvements in the employment of neoadjuvant therapy after the expiry of the 2016 European Parliament deadline and after the 2017 St. Gallen Conference recommendations.


Assuntos
Neoplasias da Mama/terapia , Mama/patologia , Estadiamento de Neoplasias , Sociedades Médicas , Oncologia Cirúrgica , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/epidemiologia , Bases de Dados Factuais , Feminino , Seguimentos , Humanos , Itália/epidemiologia , Morbidade/tendências , Terapia Neoadjuvante/métodos , Prognóstico , Estudos Retrospectivos , Fatores de Tempo
7.
Bone Marrow Transplant ; 51(7): 938-44, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26999465

RESUMO

Hematopoietic stem cell transplantation (HSCT) is curative for hematological manifestations of Fanconi anemia (FA). We performed a retrospective analysis of 22 patients with FA and aplastic anemia, myelodysplastic syndrome or acute myelogenous leukemia who underwent a HSCT at Memorial Sloan Kettering Cancer Center and survived at least 1 year post HSCT. Patients underwent either a TBI- (N=18) or busulfan- (N=4) based cytoreduction followed by T-cell-depleted transplants from alternative donors. Twenty patients were alive at time of the study with a 5- and 10-year overall survival of 100 and 84% and no evidence of chronic GvHD. Among the 18 patients receiving a TBI-based regimen, 11 (61%) had persistent hemochromatosis, 4 (22%) developed hypothyroidism, 7 (39%) had insulin resistance and 5 (27%) developed hypertriglyceridemia after transplant. Eleven of 16 evaluable patients (68%), receiving TBI, developed gonadal dysfunction. Two patients who received a TBI-based regimen died of squamous cell carcinoma. One patient developed hemochromatosis, hypothyroidism and gonadal dysfunction after busulfan-based cytoreduction. TBI appears to be a risk factor for malignant and endocrine late effects in the FA host. Multidisciplinary follow-up of patients with FA (including cancer screening) is essential for early detection and management of late complications, and improving long-term outcomes.


Assuntos
Anemia de Fanconi/complicações , Anemia de Fanconi/terapia , Transplante de Células-Tronco Hematopoéticas/métodos , Adolescente , Adulto , Bussulfano/uso terapêutico , Criança , Pré-Escolar , Anemia de Fanconi/mortalidade , Humanos , Masculino , Estudos Retrospectivos , Fatores de Tempo , Doadores de Tecidos , Condicionamento Pré-Transplante/métodos , Condicionamento Pré-Transplante/mortalidade , Transplante Homólogo , Irradiação Corporal Total/efeitos adversos , Irradiação Corporal Total/mortalidade , Adulto Jovem
8.
Am J Physiol Cell Physiol ; 309(5): C332-47, 2015 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-26108665

RESUMO

The potent trypanolytic properties of human apolipoprotein L1 (APOL1) can be neutralized by the trypanosome variant surface antigen gene product known as serum resistance-associated protein. However, two common APOL1 haplotypes present uniquely in individuals of West African ancestry each encode APOL1 variants resistant to serum resistance-associated protein, and each confers substantial resistance to human African sleeping sickness. In contrast to the dominantly inherited anti-trypanosomal activity of APOL1, recessive inheritance of these two trypanoprotective APOL1 alleles predisposes to kidney disease. Proposed mechanisms of APOL1 toxicity have included BH3 domain-dependent autophagy and/or ion channel activity. We probed these potential mechanisms by expressing APOL1 in Xenopus laevis oocytes. APOL1 expression in oocytes increased ion permeability and caused profound morphological deterioration (toxicity). Coexpression of BCL2 family members rescued APOL1-associated oocyte toxicity in the order MCL1 ∼ BCLW > BCLXL ∼ BCL2A1 ≫ BCL2. Deletion of nine nominal core BH3 domain residues abolished APOL1-associated toxicity, but missense substitution of the same residues abolished neither oocyte toxicity nor its rescue by coexpressed MCL1. The APOL1 BH3 domain was similarly dispensable for the ability of APOL1 to rescue intact mice from lethal trypanosome challenge. Replacement of most extracellular Na(+) by K(+) also reduced APOL1-associated oocyte toxicity, allowing demonstration of APOL1-associated increases in Ca(2+) and Cl(-) fluxes and oocyte ion currents, which were similarly reduced by MCL1 coexpression. Thus APOL1 toxicity in Xenopus oocytes is BH3-independent, but can nonetheless be rescued by some BCL2 family proteins.


Assuntos
Apolipoproteínas/biossíntese , Apolipoproteínas/toxicidade , Lipoproteínas HDL/biossíntese , Lipoproteínas HDL/toxicidade , Proteínas Proto-Oncogênicas c-bcl-2/biossíntese , Sequência de Aminoácidos , Animais , Apolipoproteína L1 , Apolipoproteínas/genética , Feminino , Humanos , Lipoproteínas HDL/genética , Camundongos , Dados de Sequência Molecular , Estrutura Terciária de Proteína/fisiologia , Proteínas Proto-Oncogênicas c-bcl-2/genética , Xenopus laevis
9.
Leukemia ; 27(1): 170-82, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22713648

RESUMO

Chronic lymphocytic leukemia (CLL) can be immunosuppressive in humans and mice, and CLL cells share multiple phenotypic markers with regulatory B cells that are competent to produce interleukin (IL)-10 (B10 cells). To identify functional links between CLL cells and regulatory B10 cells, the phenotypes and abilities of leukemia cells from 93 patients with overt CLL to express IL-10 were assessed. CD5(+) CLL cells purified from 90% of the patients were IL-10-competent and secreted IL-10 following appropriate ex vivo stimulation. Serum IL-10 levels were also significantly elevated in CLL patients. IL-10-competent cell frequencies were higher among CLLs with IgV(H) mutations, and correlated positively with TCL1 expression. In the TCL1-transgenic (TCL1-Tg) mouse model of CLL, IL-10-competent B cells with the cell surface phenotype of B10 cells expanded significantly with age, preceding the development of overt, CLL-like leukemia. Malignant CLL cells in TCL1-Tg mice also shared immunoregulatory functions with mouse and human B10 cells. Serum IL-10 levels varied in TCL1-Tg mice, but in vivo low-dose lipopolysaccharide treatment induced IL-10 expression in CLL cells and high levels of serum IL-10. Thus, malignant IL-10-competent CLL cells exhibit regulatory functions comparable to normal B10 cells that may contribute to the immunosuppression observed in patients and TCL1-Tg mice.


Assuntos
Linfócitos B Reguladores/imunologia , Linfócitos B/imunologia , Interleucina-10/imunologia , Leucemia Linfocítica Crônica de Células B/imunologia , Proteínas Proto-Oncogênicas/metabolismo , Proteínas Proto-Oncogênicas/fisiologia , Animais , Linfócitos B/metabolismo , Linfócitos B/patologia , Linfócitos B Reguladores/metabolismo , Linfócitos B Reguladores/patologia , Células Cultivadas , Imunofluorescência , Humanos , Terapia de Imunossupressão , Interleucina-10/metabolismo , Leucemia Linfocítica Crônica de Células B/metabolismo , Leucemia Linfocítica Crônica de Células B/patologia , Lipopolissacarídeos/farmacologia , Camundongos , Camundongos Transgênicos
10.
Anticancer Res ; 32(4): 1533-6, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22493397

RESUMO

AIM: To assess the impact of a two-step multiparameter selection on the actual enrollment of women with breast cancer into a prospective intraoperative radiotherapy (IORT) trial. PATIENTS AND METHODS: From September 2009, a prospective clinical trial was started in order to deliver adjuvant exclusive single -fraction IORT to patients with early breast cancer. To select patients meeting suitable eligibility criteria for the clinical trial, a two-step decision process was developed: at pre-surgical examination (first step) and during surgery (second step). RESULTS: A series of 464 patients with breast cancer was analysed: at the first step, out of 464 patients, 333 (71%) were considered eligible for the IORT protocol; at the second step, out of 333 patients, 199 (60%) met the eligibility criteria and received the IORT fraction according to the criteria of the controlled trial. CONCLUSION: In our experience, the ultimate rate of patients who enrolled in the IORT clinical trial after the two-step decision process was 43%.


Assuntos
Neoplasias da Mama/radioterapia , Neoplasias da Mama/cirurgia , Elétrons , Cuidados Intraoperatórios , Terapia Combinada , Relação Dose-Resposta à Radiação , Feminino , Humanos , Projetos Piloto , Estudos Prospectivos
11.
Neurology ; 76(18): 1564-7, 2011 May 03.
Artigo em Inglês | MEDLINE | ID: mdl-21536635

RESUMO

OBJECTIVE: To determine whether weight gain is associated with recurrence in idiopathic intracranial hypertension (IIH). METHODS: Medical records of adult patients with IIH seen between 1993 and 2009 at 2 university hospitals were reviewed to identify those with and without recurrence. Patients with documented height and weight at presentation and at subsequent visits were studied. The Wilcoxon rank sum test was used to compare mean body mass index (BMI) and percent weight change between the groups of patients with recurrence and without recurrence. The signed-rank test was used for comparing BMI within groups at the various time points. RESULTS: Fifty women with IIH were included in the analyses: 26 had IIH recurrence and 24 did not. Patients with recurrence had greater BMI at the time of recurrence compared to BMI at diagnosis (p = 0.02, signed-rank test). They also demonstrated a greater degree of weight gain between initial resolution and recurrence (BMI change +2.0 kg/m(2) [-1.5 to 10.8]) compared to patients without recurrence (-0.75 kg/m(2) [-35 to 3.6], p = 0.0009, Wilcoxon rank sum test). Patients without recurrence demonstrated stable weights (0%[95% CI -9.6 to 10.1%]), while patients with recurrence demonstrated a 6% weight gain ([-3.5 to 40.2%], p = 0.005), with an average rate of BMI gain of 1.3 kg/m(2)/year vs -0.96 kg/m(2)/year in those without recurrence. CONCLUSION: Patients with IIH recurrence had significant increases in BMI compared to patients without recurrence in this cohort. Patients with resolved IIH should be advised that weight gain may be a risk factor for IIH recurrence.


Assuntos
Pseudotumor Cerebral/fisiopatologia , Aumento de Peso/fisiologia , Adulto , Índice de Massa Corporal , Estudos de Casos e Controles , Feminino , Humanos , Pessoa de Meia-Idade , Recidiva , Fatores de Risco
12.
Leukemia ; 24(9): 1580-7, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20613784

RESUMO

B-cell chronic lymphocytic leukemia (CLL) is characterized by slow accumulation of malignant cells, which are supported in the microenvironment by cell-cell interactions and soluble cytokines such as tumor necrosis factor (TNF). We evaluated the effect of the small molecule TNF inhibitor LMP-420 on primary CLL cells. The mean concentration of LMP-420 required to induce 50% cytotoxicity (ED50) at 72 h was 245 n. LMP-420-induced time- and dose-dependent apoptosis, as shown by annexin V staining, caspase activation and DNA fragmentation. These changes were associated with decreased expression of anti-apoptotic proteins Mcl-1, Bcl-xL and Bcl-2. CLL cells from patients with poor prognostic indicators showed LMP-420 sensitivity equal to that for cells from patients with favorable characteristics. In addition, LMP-420 potentiated the cytotoxic effect of fludarabine and inhibited in vitro proliferation of stimulated CLL cells. Gene expression profiling indicated that the mechanism of action of LMP-420 may involve suppression of nuclear factor-kappaB and immune response pathways in CLL cells. LMP-420 had minimal effects on normal peripheral blood mononuclear cell, B- and T-cell function, and hematopoietic colony formation. Our data suggest that LMP-420 may be a useful treatment for CLL with negligible hematologic toxicities.


Assuntos
Antineoplásicos/farmacologia , Compostos de Boro/farmacologia , Leucemia Linfocítica Crônica de Células B/patologia , Purinas/farmacologia , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Antineoplásicos/toxicidade , Apoptose/efeitos dos fármacos , Compostos de Boro/toxicidade , Linhagem Celular Tumoral , Relação Dose-Resposta a Droga , Sinergismo Farmacológico , Feminino , Citometria de Fluxo , Perfilação da Expressão Gênica , Humanos , Leucemia Linfocítica Crônica de Células B/genética , Masculino , Prognóstico , Purinas/toxicidade , Vidarabina/análogos & derivados , Vidarabina/farmacologia
13.
Cephalalgia ; 30(12): 1524-6, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19614705

RESUMO

Brain stem structures are implicated in the generation of migraine and other types of headache. The patient described herein had chronic left hemicranial headaches associated with a left pontine infarction.


Assuntos
Infartos do Tronco Encefálico/complicações , Cefaleia/etiologia , Ponte/patologia , Infartos do Tronco Encefálico/patologia , Infartos do Tronco Encefálico/fisiopatologia , Feminino , Cefaleia/patologia , Cefaleia/fisiopatologia , Humanos , Hipertensão/complicações , Achados Incidentais , Pessoa de Meia-Idade , Neoplasias Hipofisárias/complicações , Neoplasias Hipofisárias/cirurgia , Prolactinoma/complicações , Prolactinoma/cirurgia
14.
Br J Ophthalmol ; 92(1): 103-7, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17584995

RESUMO

AIMS: To evaluate the relationship between angle width as determined by anterior segment optical coherence tomography (AS-OCT) and the presence of peripheral anterior synechiae (PAS). METHODS: This was a prospective observational case series in which 203 subjects with primary angle closure or open angles were recruited. Images of the nasal, temporal and inferior angles were obtained with AS-OCT in dark conditions. Subjects then underwent gonioscopy by an independent examiner who was masked to the AS-OCT findings. PAS were identified by gonioscopy and defined as abnormal adhesions of the iris to the angle that were at least half a clock hour in width and present to the level of the anterior trabecular meshwork or higher. The total clock hours of PAS were recorded. RESULTS: Sixty-eight subjects (33.5%) were PACS, 76 subjects (37.4%) had PAC/PACG, 14 (6.9%) had primary open angle glaucoma, and 45 (22.2%) subjects were normal with open angles. There was a weak but significant correlation between the angle opening distance (AOD), trabecular iris space area (TISA) and angle recess area (ARA) with clock hours of PAS (Spearman's correlation coefficients = -0.30, -0.32 and -0.32, respectively, p<0.001). The mean values of the AOD, TISA and ARA in the nasal, temporal and inferior quadrants were significantly less in eyes with PAS compared with those without (p<0.001, Mann-Whitney U test). Analysis by quadrant showed that these parameters were smaller in the nasal and temporal quadrants in eyes with PAS (p<0.01). CONCLUSIONS: Angle width determined by AS-OCT and the extent of PAS were weakly correlated, and angle width was significantly smaller in eyes with PAS.


Assuntos
Segmento Anterior do Olho/patologia , Glaucoma de Ângulo Fechado/complicações , Glaucoma de Ângulo Fechado/patologia , Doenças da Íris/etiologia , Idoso , Feminino , Gonioscopia , Humanos , Doenças da Íris/diagnóstico , Doenças da Íris/patologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Aderências Teciduais/diagnóstico , Aderências Teciduais/etiologia , Aderências Teciduais/patologia , Tomografia de Coerência Óptica/métodos , Malha Trabecular/patologia
15.
Gut ; 56(1): 82-9, 2007 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17172586

RESUMO

BACKGROUND: beta-Glucosylceramide, a naturally occurring glycolipid, exerts modulatory effects on natural killer T (NKT) lymphocytes. AIM: To determine whether beta-glucosylceramide can alter NKT function in opposite directions, colitis was induced by intracolonic installation of trinitrobenzenesulphonic acid, and hepatocellular carcinoma (HCC) was induced by transplantation of Hep3B cells. METHODS: The immunological effect of beta-glucosylceramide was assessed by analysis of intrahepatic and intrasplenic lymphocyte populations, serum cytokines and STAT protein expression. RESULTS: Administration of beta-glucosylceramide led to alleviation of colitis and to suppression of HCC, manifested by improved survival and decreased tumour volume. The beneficial effects were associated with an opposite immunological effect in the two models: the peripheral:intrahepatic CD4:CD8 lymphocyte ratio increased in the colitis model and decreased in the HCC group. The peripheral:intrahepatic NKT lymphocyte ratio decreased in beta-glucosylceramide-treated mice solely in the HCC model. The effect of beta-glucosylceramide was associated with decreased STAT1 and 4 expression, and with overexpression of STAT6, along with decreased interferon gamma levels in the colitis model, whereas an opposite effect was noted in the HCC model. CONCLUSIONS: beta-glucosylceramide alleviates immunologically incongruous disorders and may be associated with "fine tuning" of immune responses, by changes in plasticity of NKT lymphocytes.


Assuntos
Colite/imunologia , Glucosilceramidas/imunologia , Células Matadoras Naturais/imunologia , Neoplasias Hepáticas Experimentais/imunologia , Linfócitos T/imunologia , Animais , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD8-Positivos/imunologia , Células Cultivadas , Colite/patologia , Modelos Animais de Doenças , Feminino , Glucosilceramidas/farmacologia , Interferon gama/imunologia , Interleucina-10/imunologia , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Nus , Fatores de Transcrição STAT/análise
16.
Med Inform Internet Med ; 31(1): 67-87, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16754369

RESUMO

PRIMARY OBJECTIVE: to assess the readability level of Web-based information on leading incident cancers. RESEARCH DESIGN: websites on breast, prostate, and colorectal cancers were selected for analysis by comparing the first 100 hits across 10 popular search engines. A total of 100 websites on breast (n=33), prostate (n=34), and colorectal (n=33) cancers were included in the final analysis. METHODS: readability was assessed using SMOG, Flesch-Kincaid (F - K), and Flesch Reading Ease (FRE) measures. SMOG was hand-calculated on 10 - 30 lines of continuous text. Identical text was entered into Microsoft Word 2002 where F - K and FRE scores were determined automatically by the word processor. RESULTS: the mean readability score of the cancer websites was Grade 12.9 using SMOG and Grade 10.7 according to F - K. The mean FRE score was 45.3, a score considered 'difficult'. Colorectal cancer websites were most difficult to read compared to breast and prostate cancer websites. All measures indicated that prostate cancer websites were written at the lowest readability. Significantly higher reading levels were required for concluding paragraphs of Web articles compared to introduction paragraphs. CONCLUSIONS: findings suggest the need for readable cancer information on the Web. Health promoters, health informaticians, medical journalists, and web page editors must collaborate to ensure the use of plain language to match the literacy skills of consumers.


Assuntos
Compreensão , Revelação/normas , Internet/estatística & dados numéricos , Neoplasias , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Ontário , Educação de Pacientes como Assunto
17.
AJNR Am J Neuroradiol ; 27(5): 1016-8, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16687535

RESUMO

BK virus infection is most often associated with urologic disease in patients who have undergone renal or bone marrow transplantation. We report a rare case of biopsy-confirmed BK virus encephalitis in an immunocompromised patient with hemorrhagic cystitis, in whom dramatic imaging findings were present despite relatively mild clinical symptoms. MR imaging demonstrated widespread increased signal intensity on T2- and fluid-attenuated inversion recovery-weighted images, with restricted diffusion, in the cerebellum, cerebral white matter, and deep gray matter structures. The simultaneous presence of urologic abnormalities and neurologic deficits in certain immunocompromised patients should prompt consideration of BK virus encephalitis.


Assuntos
Vírus BK , Encefalite Viral/diagnóstico , Imageamento por Ressonância Magnética , Infecções por Polyomavirus/diagnóstico , Infecções Tumorais por Vírus/diagnóstico , Adulto , Feminino , Humanos
18.
Eur J Surg Oncol ; 32(2): 143-7, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16300921

RESUMO

AIM: To identify by means of clinical and histopathological features a subset of breast cancer patients with sentinel lymph-node (sN) micrometastases and metastatic disease confined only to the sN in order to spare them an unnecessary axillary lymph node dissection (ALND). MATERIALS AND METHODS: From January 1998 to December 2004, 116 patients with sN micrometastases underwent standard ALND for early-stage (T1-2 N0 M0) invasive breast cancer; clinical and histopathologic parameters were prospectively collected and evaluated by means of univariate and logistic regression analysis in order to identify which patients with sN micrometastases were free of metastasis in axillary non-sN. RESULTS: Sixteen of 116 patients with sN micrometastases had tumour involvement of non-sN, with six and 10 patients having non-sN micrometastases and macrometastases, respectively. None of 19 patients with primary tumour measuring

Assuntos
Neoplasias da Mama/cirurgia , Carcinoma Ductal de Mama/cirurgia , Carcinoma Lobular/cirurgia , Excisão de Linfonodo , Adulto , Idoso , Análise de Variância , Axila , Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/patologia , Carcinoma Lobular/patologia , Feminino , Humanos , Itália , Modelos Logísticos , Metástase Linfática , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Valor Preditivo dos Testes , Estudos Prospectivos , Resultado do Tratamento , Neoplasias Vasculares/secundário , Neoplasias Vasculares/cirurgia
19.
Ann Plast Surg ; 55(4): 352-6, 2005 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16186696

RESUMO

Replantation has become the state of the art reconstruction for an amputated thumb. The aim of our study was to review our series of thumb replantations over a period of 12 years at the Bellevue Hospital Center in New York City. The mechanism of injury, level of amputation, and use of vein grafts was reviewed and correlated with survival rates of the replanted thumbs. The overall survival rate was 91.3%. Of the 12 thumbs that were re-explored for vascular compromise, 75% were successfully salvaged. Our study also indicates that there is no statistical difference in survival of thumb replants when comparing the mechanism of injury, the level of amputation, and the use of vein grafts. However, the use of vein grafting seemed to be beneficial in the successful outcome of replantation in severe crush and avulsion injuries, even though the values did not reach statistical significance. We conclude that thumb replantation is associated with very high survival rate, regardless of the mechanism of injury or level of amputation, and should be attempted in all cases. An early reexploration for vascular problems yields a high salvage rate and should be performed in all cases. We also recommend the use of vein grafts in severe crush and avulsion injuries.


Assuntos
Amputação Traumática/cirurgia , Traumatismos dos Dedos/cirurgia , Reimplante/métodos , Polegar/cirurgia , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Escala de Gravidade do Ferimento , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Sobrevivência de Tecidos
20.
Neurology ; 62(12): 2297-9, 2004 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-15210900

RESUMO

The authors report seven patients from six neuro-ophthalmology referral centers who developed pseudo-tumor cerebri during treatment with doxycycline. All four female patients and one of three male patients were obese. Vision was minimally affected in most patients, but two had substantial visual acuity or visual field loss at presentation. Discontinuation of doxycycline, with or without additional intracranial pressure-lowering agents, yielded improvement, but permanent visual acuity or visual field loss occurred in five patients.


Assuntos
Antibacterianos/efeitos adversos , Doxiciclina/efeitos adversos , Hipertensão Intracraniana/induzido quimicamente , Acne Vulgar/tratamento farmacológico , Adolescente , Adulto , Feminino , Humanos , Masculino , Obesidade , Fatores de Risco
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