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1.
Adv Radiat Oncol ; 9(1): 101305, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38260226

RESUMO

Purpose: We hypothesized that there may be a gender disparity in the receipt of the Association of Residents in Radiation Oncology (ARRO) Educator of the Year Award and sought to elucidate factors that contribute to differences in award receipt. Methods and Materials: Using a database provided by the American Society for Radiation Oncology, award recipients were identified from 2010 to 2022. Publicly available websites were accessed to obtain data regarding gender, years since residency graduation, percentage of female faculty, size of residency program, and program director designation. A 1-sample Z-test was used to assess whether the proportion of female ARRO award winners, defined as the proportion of female radiation oncology faculty members in the nominating universities that year, was significantly less than the population average. Secondary analyses used univariable binary logistic regression to identify global associations between gender, year since gradation, or program size. Results: The lowest proportion of female awardees occurred in 2013 (14.3%) and the greatest proportion in 2022 (30.6%). Compared with the proportion of female faculty members in nominating programs for the respective year, there were significantly fewer female awardees in 2010 (18% female awardees vs 32% female faculty members; P = .02) and 2013 (14% female awardees vs 31% female faculty members; P = .01). There was a statistically significant increase in female awardees during the study period (P < .01). On logistic regression analysis, large program size (≥10 residents) (odds ratio [OR], 6.86; 95% CI, 2.71-23.1; P < .001) and medium program size (5-9 residents) (OR, 4.05; 95% CI, 1.60-13.7; P < .001) were associated with a greater proportion of female awardees compared with small program size (1-4 residents). There was no association between awardee gender and years since graduation. Conclusions: A gender disparity was present in the receipt of ARRO Educator Awards. Residency chiefs, program directors, and chairs should work to ensure that a diverse slate of faculty is considered annually for the ARRO Educator Award.

2.
Artigo em Inglês | MEDLINE | ID: mdl-36414401

RESUMO

OBJECTIVES: Literature on disparities in palliative care receipt among extensive stage small cell lung cancer (ES-SCLC) patients is scarce. The purpose of this study was to examine disparities in palliative care receipt among ES-SCLC patients. METHODS: Patients aged 40 years or older diagnosed with ES-SCLC between 2004 and 2015 in the National Cancer DataBase (NCDB) were eligible. Two palliative care variables were created: (1) no receipt of any palliative care and (2) no receipt of pain management-palliative care. The latter variable indicated pain management receipt among those who received any palliative care. Log binomial regression models were constructed to calculate risk ratios by covariates. Unadjusted and mutually adjusted models were created for both variables. RESULTS: Among 83 175 patients, the risk of no palliative care receipt was higher among Blacks compared with Whites in unadjusted and adjusted models (both model HRs 1.02; 95% CIs 1.00 to 1.03, p<0.05). Patients older than 59 years were at a higher risk of not receiving palliative care than younger patients (HR 1.02; 95% CI 1.01 to 1.03 for 59-66, HR 1.04; 95% CI 1.03 to 1.05 for 66-74, HR 1.06; 95% CI 1.05 to 1.08 for >74). Among 19 931 patients, the risk of no pain management-palliative care was higher among black patients on unadjusted analysis (HR 1.02; 95% CI 1.00 to 1.03, p<0.05). Patients between 66 and 74 years were at a higher risk of not receiving pain management-palliative care than patients younger than 59 years (HR 1.02; 95% CI 1.00 to 1.03, p<0.05). CONCLUSIONS: Significant disparities exist in palliative care receipt among ES-SCLC patients.

3.
Appl Radiat Oncol ; 11(1): 14-20, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35445143

RESUMO

Vulvar cancer is a relatively rare gynecologic malignancy for which surgery remains the cornerstone of treatment. A wide local excision is the goal for treatment with curative intent in patients with early stage vulvar cancer, given that there are adverse pathologic features shown to increase risk of local recurrence. Specifically, the presence of positive or close margins of < 8 mm or 2 or more positive nodes have been shown to significantly increase the risk of recurrence and have informed guidelines for risk-adapted adjuvant radiation, although the optimal dose for adjuvant radiation is yet to be established. Given the rarity of vulvar cancer, guidelines regarding the indications and dose for adjuvant radiation are based largely on retrospective studies. The purpose of this review is to summarize the evidence underlying the current indications for adjuvant radiation in early stage vulvar cancer as well as to determine the optimal dose for adjuvant radiation.

4.
Leuk Lymphoma ; 63(1): 170-178, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34493143

RESUMO

Adult acute lymphoblastic leukemia (ALL) is associated with poor outcomes. We evaluated differences by facility type in the parameters of 6766 adult ALL patients ≥ 40 years of age diagnosed from 2004 to 2015 in the National Cancer DataBase (NCDB) and survival outcomes using two-sample t-tests or chi-square tests and Cox proportional hazards models. Those treated in academic facilities were younger (mean 58.5 versus 61.7 years, p < 0.001), Black (8.1% versus 5.6%, p < 0.001), had private insurance (50.9% versus 44.0%, p < 0.001), and more likely to receive chemotherapy (93.2% versus 81.4%, p < 0.001), any radiotherapy (14.9% versus 7.3%, p < 0.001), stem cell transplant (9.4% versus 2.5%, p < 0.001), or total body irradiation (TBI) (11.3% versus 4.3%, p < 0.001). Patients treated at an academic facility had a higher hazard of death (p<.05) while those that received any chemotherapy or TBI or CNS radiation had a lower risk of death (all p < 0.05). These parameters should be evaluated in future studies.


Assuntos
Leucemia-Linfoma Linfoblástico de Células Precursoras , Adulto , Acessibilidade aos Serviços de Saúde , Humanos , Leucemia-Linfoma Linfoblástico de Células Precursoras/diagnóstico , Leucemia-Linfoma Linfoblástico de Células Precursoras/epidemiologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Estudos Retrospectivos , Condicionamento Pré-Transplante , Irradiação Corporal Total
5.
Melanoma Res ; 31(4): 393-396, 2021 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-34054058

RESUMO

Metastatic melanoma is often accompanied by the development of brain metastases, at presentation or during the course of therapy. Local therapies such as surgery and radiation have been considered standard treatments for intracranial disease. However, the emergence of systemic therapies has been changing the treatment paradigm for the management of brain metastases. In patients with BRAF-mutated melanoma, combined BRAF and MEK inhibition has been found to elicit significant clinical responses. Patients who develop resistance to MAP kinase (MAPK) targeted therapy can achieve significant responses upon rechallenge. In this case, a 68-year-old woman with metastatic melanoma who had received multiple treatment courses including combination immunotherapy and combination MAPK-targeted therapy presented with a brainstem metastasis and demonstrated a complete response upon initiation of encorafenib and binimetinib, thereby obviating the need for stereotactic radiosurgery.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Benzimidazóis/efeitos adversos , Neoplasias Encefálicas/secundário , Carbamatos/efeitos adversos , Melanoma/complicações , Proteínas Proto-Oncogênicas B-raf/genética , Radiocirurgia/métodos , Neoplasias Cutâneas/complicações , Sulfonamidas/efeitos adversos , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Benzimidazóis/farmacologia , Carbamatos/farmacologia , Feminino , Humanos , Melanoma/patologia , Neoplasias Cutâneas/patologia , Sulfonamidas/farmacologia
6.
Adv Radiat Oncol ; 6(4): 100704, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33898867

RESUMO

PURPOSE: Our purpose was to establish the prevalence of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) in asymptomatic patients scheduled to receive radiation therapy and its effect on management decisions. METHODS AND MATERIALS: Between April 2020 and July 2020, patients without influenza-like illness symptoms at four radiation oncology departments (two academic university hospitals and two community hospitals) underwent polymerase chain reaction testing for SARS-CoV-2 before the initiation of treatment. Patients were tested either before radiation therapy simulation or after simulation but before treatment initiation. Patients tested for indications of influenza-like illness symptoms were excluded from this analysis. Management of SARS-CoV-2-positive patients was individualized based on disease site and acuity. RESULTS: Over a 3-month period, a total of 385 tests were performed in 336 asymptomatic patients either before simulation (n = 75), post-simulation, before treatment (n = 230), or on-treatment (n = 49). A total of five patients tested positive for SARS-CoV-2, for a pretreatment prevalence of 1.3% (2.6% in north/central New Jersey and 0.4% in southern New Jersey/southeast Pennsylvania). The median age of positive patients was 58 years (range, 38-78 years). All positive patients were white and were relatively equally distributed with regard to sex (2 male, 3 female) and ethnicity (2 Hispanic and 3 non-Hispanic). The median Charlson comorbidity score among positive patients was five. All five patients were treated for different primary tumor sites, the large majority had advanced disease (80%), and all were treated for curative intent. The majority of positive patients were being treated with either sequential or concurrent immunosuppressive systemic therapy (80%). Initiation of treatment was delayed for 14 days with the addition of retesting for four patients, and one patient was treated without delay but with additional infectious-disease precautions. CONCLUSIONS: Broad-based pretreatment asymptomatic testing of radiation oncology patients for SARS-CoV-2 is of limited value, even in a high-incidence region. Future strategies may include focused risk-stratified asymptomatic testing.

7.
AME Case Rep ; 5: 15, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33912804

RESUMO

Radiation therapy for liver tumors has been shown to provide a local control and overall survival benefit in patients with primary or oligometastatic liver tumors. However, accurate delineation of the target volume in intraabdominal tumors can be limited by diaphragmatic motion. In addition to image guidance during radiation therapy, computed tomography (CT)-guided fiducial marker placement can improve the accuracy of radiation treatment and optimize tumor control. Fiducial marker placement is often indicated in stereotactic body radiation therapy (SBRT) due to the ablative doses used as well as in proton therapy given that these markers are clearly visible on orthogonal kV image guidance and studies have suggested that their placement in liver tumors offers improved local control. However, fiducial marker migration is a rare risk associated with fiducial placement for which literature remains scarce. We report two separate cases of fiducial marker migrations from the liver into the inferior vena cava and right atrium which occurred following CT-guided placement without any resultant toxicity. Imaging using contrast-enhanced or volume navigation ultrasound techniques during fiducial marker deployment may mitigate the risk of fiducial marker migration and potential end-organ injury. Alternative techniques for motion management such as inspiratory or expiratory breath hold or use of residual lipiodol on imaging in patients who have undergone transarterial chemoembolization (TACE) should be considered as well to avoid potential complications from fiducial marker placement.

8.
Cancer Med ; 10(4): 1327-1334, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33503323

RESUMO

BACKGROUND: The purpose of this study was to examine the factors associated with disparities in overall survival (OS) by race in pediatric diffuse large B-cell lymphoma (DLBCL) patients. METHODS: We evaluated clinical features and survival among patients ≤21 years of age diagnosed with stage I-IV DLBCL from 2004 to 2014 from the National Cancer Database (NCDB) using a multivariable Cox proportional hazards model. RESULTS: Among 1386 pediatric patients with DLBCL, 1023 patients met eligibility criteria. In unadjusted analysis, Black patients had a significantly higher overall death rate than White patients (HRBlack vs. White 1.51; 95% CI: 1.02-2.23, p = 0.041). The survival disparity did not remain significant in adjusted analysis, though controlling for covariates had little effect on the magnitude of the disparity (HR 1.46; 95% CI 0.93-2.31, p = 0.103). In adjusted models, presence of B symptoms, receipt of chemotherapy, stage of disease, and Other insurance were significantly associated with OS. Specifically, patients with B symptoms and those with Other insurance were more likely to die than those without B symptoms or private insurance, respectively (HR 1.75; 95% CI 1.22-2.50, p = 0.002) and (HR 2.56; 95% CI, 1.39-4.73, p = 0.0027), patients who did not receive chemotherapy were three times more likely to die than those who received chemotherapy (HR 3.10; CI 1.80-5.35, p < 0.001), and patients who presented with earlier stage disease were less likely to die from their disease than those with stage IV disease (stages I-III HR 0.34, CI 0.18-0.64, p < 0.001; HR 0.50, CI 0.30-0.82, p = 0.006, HR 0.72, CI 0.43-1.13, p = 0.152, respectively). CONCLUSIONS: Our results suggest that racial disparities in survival may be mediated by clinical and treatment parameters.


Assuntos
População Negra/estatística & dados numéricos , Disparidades em Assistência à Saúde/estatística & dados numéricos , Linfoma Difuso de Grandes Células B/etnologia , Linfoma Difuso de Grandes Células B/mortalidade , População Branca/estatística & dados numéricos , Adolescente , Adulto , Bases de Dados Factuais , Humanos , Linfoma Difuso de Grandes Células B/terapia , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Estados Unidos/epidemiologia , Adulto Jovem
9.
J Immunother Cancer ; 8(2)2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33020239

RESUMO

BACKGROUND: Immune checkpoint inhibitors (ICIs) improve survival outcomes in metastatic melanoma and non-small cell lung cancer (NSCLC). Preclinical evidence suggests that overexpression of cyclo-oxygenase-2 (COX2) in tumors facilitates immune evasion through prostaglandin E2 production and that COX inhibition synergizes with ICIs to promote antitumor T-cell activation. This study investigates whether concurrent COX inhibitor (COXi) use during ICI treatment compared with ICI alone is associated with improved time-to-progression (TTP), objective response rate (ORR) and overall survival (OS) in patients with metastatic melanoma and NSCLC. METHODS: We retrospectively reviewed 90 metastatic melanoma and 37 metastatic NSCLC patients, treated with ICI between 2011 and 2019. Differences in TTP and OS by ICI+COXi versus ICI alone were compared using Kaplan-Meier and Cox regression. Interaction between ICI+COXi versus ICI alone and pretreatment neutrophil-lymphocyte ratio (NLR) was examined. Independent radiology review per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 was performed. RESULTS: For patients with melanoma, median TTP was significantly prolonged in ICI+COXi versus ICI alone (245 vs 100.5 days, p=0.002). On multivariate analysis, ICI+COXi associated with increased TTP (HR 0.36, 95% CI 0.2 to 0.66, p=0.001), adjusted for age, pretreatment NLR, and gender. For NSCLC patients, ICI+COXi also associated with increased TTP compared with ICI alone on multivariate analysis (HR 0.45; 95% CI 0.21 to 0.97; p=0.042) adjusted for age. ORR at 6 months was significantly higher in patients who received ICI+COXi compared with ICI alone in both melanoma (58.6% vs 19.2%, p=0.0005) and NSCLC (73.7% vs 33.3%, p=0.036) cohorts. In the melanoma cohort, high pretreatment NLR (>5) associated with decreased TTP (HR 3.21, 95% CI 1.64 to 6.3; p=0.0007); however, ICI+COXi significantly associated with increased TTP in high NLR (>5) patients (HR 0.08, 95% CI 0.03 to 0.25), but not in low NLR (≤5) patients (HR 0.65, 95% CI 0.32 to 1.32). Similar outcomes were found in an adjusted melanoma cohort after RECIST review. CONCLUSIONS: Our study suggests that COXi use concurrently with ICI significantly associated with longer TTP and improved ORR at 6 months in patients with metastatic melanoma and NSCLC compared with ICI alone. Furthermore, COXi use appears to reverse the negative prognostic effect of a high NLR by prolonging TTP in patients with melanoma.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Inibidores de Ciclo-Oxigenase/uso terapêutico , Inibidores de Checkpoint Imunológico/uso terapêutico , Imunoterapia/métodos , Melanoma/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Inibidores de Ciclo-Oxigenase/farmacologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Análise de Sobrevida
10.
Oncol Hematol Rev ; 16(1): 43-51, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32832093

RESUMO

Locally advanced rectal cancer has broadly been defined as T3, T4, or lymph node-positive disease. In the 1990s, adjuvant chemoradiation was considered the optimal management for locally advanced rectal cancer. However, the paradigm shifted when the German CAO/ARO/AIO-94 Rectal Cancer trial established neoadjuvant chemoradiation as the standard of care, based on reduced rates of toxicity and local recurrence, as well as higher rates of sphincter preservation compared with postoperative chemoradiation. Both short-course radiation and long-course chemoradiation are currently accepted methods for neoadjuvant treatment, with recent trials showing equivalence in outcomes. While surgery remains the cornerstone of treatment, there are data supporting the use of magnetic resonance imaging for risk stratification in rectal cancer and encouraging prospective data regarding nonoperative management. This review summarizes data on the evolution of treatment for locally advanced rectal cancer and discusses emerging evidence for nonoperative management.

11.
Leuk Lymphoma ; 61(3): 546-556, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31640446

RESUMO

The purpose of this study was to examine factors associated with disparities in overall survival (OS) by race in pediatric Hodgkin Lymphoma (HL) patients. We evaluated clinical features and survival among patients ≤21 years of age diagnosed with stage I-IV HL from 2004 to 2015 from the National Cancer DataBase (NCDB) using a multivariable Cox proportional hazards model. Among 11,546 patients with pediatric HL, 9285 patients met eligibility criteria. Black patients experienced a 5-year OS of 91.5% vs 95.9% in White patients (p < .0001). After adjusting for confounders, Black race was associated with a significantly decreased OS (HR = 1.50; 95% CI: 1.12-1.99; p < .01). In stratified analysis by ages ≤15 years, 16-18 years, and >18 years, Black race was associated with poorer OS among compared to Whites with rates of 95.4% vs 97.7%, 87.1% vs 96.1%, and 91.6% vs 94.6% respectively. Overall, Black pediatric HL patients had lower overall survival in this study.


Assuntos
Doença de Hodgkin , Adolescente , Negro ou Afro-Americano , Criança , Disparidades em Assistência à Saúde , Doença de Hodgkin/diagnóstico , Doença de Hodgkin/epidemiologia , Doença de Hodgkin/terapia , Humanos , Modelos de Riscos Proporcionais
12.
Am J Clin Exp Urol ; 7(2): 92-97, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31139704

RESUMO

The current standard of care for patients with metastatic prostate cancer includes ADT with a palliative intent. Recent studies have investigated the role of local therapy in metastatic prostate cancer. While retrospective data has shown some benefit with regard to survival and delay in initiation of ADT, there has been limited prospective Randomized data. To date, there has only been one recent randomized trial revealing a survival benefit with local radiotherapy, largely benefiting patients with the lowest burden of disease. The purpose of this review is to summarize the evidence and ongoing clinical trials regarding the role of radiotherapy in metastatic prostate cancer patients.

13.
Am J Prev Med ; 47(6): 808-12, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25455121

RESUMO

BACKGROUND: A paucity of empirical research to date has examined cervical cancer screening in female-to-male (FTM) transgender men who retain their natal reproductive structures compared to non-transgender women. PURPOSE: To examine patient and provider characteristics associated with being up-to-date on Pap tests, with a focus on gender identity and sexual orientation. METHODS: Retrospective chart review of 5,232 patients (4,882 women, 350 FTM transgender men) at an urban community health center. All HIV-negative primary care patients aged 21-64 years (inclusive) with at least one medical visit during the 2012 calendar year and who had a cervix as of December 31, 2012, were included. Data were analyzed in 2013 using a multilevel logistic regression model nesting patients within providers. RESULTS: FTM patients were significantly less likely to be up-to-date on Pap tests (AOR=0.63, 95% CI=0.47, 0.85) compared to non-transgender women, after adjusting for individual- and provider-level factors. Behaviorally bisexual patients, compared to patients who had sex with men exclusively, were more likely to be up-to-date (AOR=1.73, 95% CI=1.32, 2.26); patients reporting only sex with women were not significantly more or less likely to be up-to-date (AOR=1.01, 95% CI=0.83, 1.23). CONCLUSIONS: Transgender patients are not accessing the same level of preventive cervical screening care as non-transgender female patients. There is a need to better understand barriers to care in this population. Contrary to findings in other settings, history of sex with women was not negatively associated with Pap utilization.


Assuntos
Serviços de Saúde para Pessoas Transgênero , Teste de Papanicolaou/métodos , Pessoas Transgênero , Neoplasias do Colo do Útero , Adulto , Detecção Precoce de Câncer/métodos , Detecção Precoce de Câncer/psicologia , Detecção Precoce de Câncer/estatística & dados numéricos , Feminino , Identidade de Gênero , Serviços de Saúde para Pessoas Transgênero/estatística & dados numéricos , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Comportamento Sexual/fisiologia , Pessoas Transgênero/psicologia , Pessoas Transgênero/estatística & dados numéricos , Estados Unidos , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/prevenção & controle , Neoplasias do Colo do Útero/psicologia
14.
J Community Health ; 39(3): 416-22, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24481710

RESUMO

Providers and non-physician staff in primary care settings have reported barriers to full electronic health record (EHR) utilization. This study evaluates the effectiveness of EHR use for accurately documenting cervical cancer screening in a community healthcare setting, and proposes strategies to improve documentation. An electronic query generated data on average-risk patients aged 21-64 who had a medical visit at Fenway Health in 2012 and were overdue for a Papanicolaou (Pap) test according to the 2012 American Society for Colposcopy and Cervical Pathology guidelines. We then conducted a manual review of these records to determine the accuracy of EHR documentation. Of a total 5,279 patients, the electronic query classified 2,982 (56.5%) as up-to-date (UTD) for a Pap and 2,297 patients (43.5%) as overdue. Upon manual review, 65 (2.2%) patients thought to be UTD were actually overdue. Of those 2,297 patients classified by the query as overdue, 816 (35.5%) were reclassified as UTD due to evidence of a recent Pap in their chart that was not extractable by electronic query and 208 (9.1%) were ineligible for a Pap; only 1,272 patients (55.4%) of the 2,297 classified by the query were truly overdue. The cervical cancer screening rate indicated by electronic query was 56.5 %; after manual review, the adjusted rate was 73.6%. Overall, 1,090 patients (20.6%) were misclassified by the query. Inefficient EHR use can have serious implications for clinical practice and performance measures. Primary care practices need to develop mechanisms to capture outside medical records and create a team-based approach to facilitate accurate EHR documentation.


Assuntos
Documentação/normas , Registros Eletrônicos de Saúde , Teste de Papanicolaou/estatística & dados numéricos , Adulto , Boston , Feminino , Humanos , Auditoria Médica , Pessoa de Meia-Idade , Medicina Preventiva , Serviços Urbanos de Saúde , Adulto Jovem
15.
World Allergy Organ J ; 6(1): 14, 2013 Aug 21.
Artigo em Inglês | MEDLINE | ID: mdl-23965733

RESUMO

BACKGROUND: Wheat allergy is among the most common food allergy in children, but few publications are available assessing the risk of anaphylaxis due to wheat. METHODS: In this study, we report the case of near-fatal anaphylaxis to wheat in a patient undergoing an oral food challenge (OFC) after the ingestion of a low dose (256 mg) of wheat. Moreover, for the first time, we analyzed the risk of anaphylaxis during an OFC to wheat in 93 children, compared to other more commonly challenged foods such as milk, egg, peanuts, and soy in more than 1000 patients. RESULTS: This study, which includes a large number of OFCs to wheat, shows that wheat is an independent risk factor that is associated with anaphylaxis requiring epinephrine administration (Odds Ratio [OR] = 2.4) and anaphylaxis requiring epinephrine administration to low dose antigen (OR = 8.02). Other risk factors for anaphylaxis, anaphylaxis requiring epinephrine administration, and anaphylaxis to low dose antigen was a history of a prior reaction not involving only the skin (OR = 1.8, 1.9 and 1.8 respectively). None of the clinical variables available prior to performing the OFC could predict which children among those undergoing OFCs to wheat would develop anaphylaxis or anaphylaxis for low dose antigen. CONCLUSION: This study shows that wheat is an independent risk factor that is associated with anaphylaxis requiring epinephrine administration and anaphylaxis requiring epinephrine administration to low dose antigen.

16.
Reprod Biol Endocrinol ; 10: 109, 2012 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-23241221

RESUMO

Reactive nitrogen species (RNS) is a subset of free oxygen radicals called reactive oxygen species (ROS). Physiological levels of ROS are necessary to maintain the reproductive functions such as cell signaling, tight junction regulation, production of hormones, capacitation, acrosomal reaction, sperm motility, and zona pellucida binding. However, an excess of RNS can adversely affect reproductive potential by causing testicular dysfunction, decreased gonadotropin secretion, and abnormal semen parameters. Because such levels of RNS have been demonstrated in males with fertility problems and routine semen analysis has not been able to accurately predict IVF outcomes, it is imperative that novel strategies be developed in order to both assess and treat oxidative stress. This article describes both physiological and pathological roles of this unique subset of ROS.


Assuntos
Infertilidade Masculina/fisiopatologia , Estresse Oxidativo/fisiologia , Espécies Reativas de Nitrogênio/fisiologia , Testículo/fisiopatologia , Feminino , Humanos , Infertilidade Masculina/metabolismo , Masculino , Modelos Biológicos , Óxido Nítrico/metabolismo , Óxido Nítrico Sintase/metabolismo , Espécies Reativas de Nitrogênio/metabolismo , Reprodução/fisiologia , Testículo/metabolismo
17.
Isr Med Assoc J ; 14(1): 24-8, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22624438

RESUMO

BACKGROUND: Skin-prick tests (SPT), food-specific immunoglobulin E level (sIgE) and clinical history have limited value individually in predicting the severity of outcome of the oral food challenge (OFC). OBJECTIVES: To develop a score that accounts for SPT, sIgE and clinical history to predict the risk of severe reaction to the OFC. METHODS: A 5 year retrospective chart review was performed on 983 children who underwent OFC to egg, milk and peanut. RESULTS: Using multilogistic regression, four major indicators were found to be independently associated with failed OFC: sIgE (odds ratio = 1.04, P < 0.0001), wheal size of the SPT (OR = 1.23, P < 0.0001), a history of any prior reaction to the food (OR = 1.13, P < 0.01), and a history of a prior non-cutaneous reaction (OR = 1.99, P < 0.01); and three were independently associated with anaphylaxis: wheal size (OR = 1.16, P < 0.001), a history of a prior non-cutaneous reaction (OR = 4.24, P < 0.01), and age (OR = 1.07, P < 0.03). A Food Challenge Score (0-4) was developed which accounted for SPT wheal, sIgE, a history of a prior non-cutaneous reaction, and age. A score of 0-1 had a negative predictive value for multisystem reaction to the OFC: 95% for milk, 91% for egg and 93% for peanut. A score of 3-4 had a positive predictive value for anaphylaxis: 62% for milk, 92% for egg and 86% for peanut. CONCLUSIONS: Severe reaction to milk, egg and peanut OFC can be predicted using a simple score that takes into account clinical data that are commonly available prior to the challenges.


Assuntos
Hipersensibilidade Alimentar/complicações , Hipersensibilidade Alimentar/diagnóstico , Criança , Hipersensibilidade a Ovo/complicações , Hipersensibilidade a Ovo/diagnóstico , Humanos , Modelos Logísticos , Hipersensibilidade a Leite/complicações , Hipersensibilidade a Leite/diagnóstico , Hipersensibilidade a Amendoim/complicações , Hipersensibilidade a Amendoim/diagnóstico , Valor Preditivo dos Testes , Curva ROC , Análise de Regressão , Estudos Retrospectivos , Testes Cutâneos
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