38 research outputs found

    Vitamin Enhanced Waters and Polyphenol Rich Beverages Analyzed for Antioxidant Capacity and Antioxidants/Calorie

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    The purpose of this study was to analyze polyphenol rich beverages (vitamin enhanced waters (VEWs), fruit juices and berry juices) to determine free polyphenol concentrations and free polyphenols per Calorie based on a serving size. The Folin–Ciocalteu reagent was used in a colorimetric assay based on a catechin standard. Fruit and berry juices contained, on average, more than eight-times the concentration of free polyphenols when compared to VEWs. When Calories per serving were taken into consideration, fruit and berry juices contained more than twice the free polyphenols per Calorie

    Emerging Trends in the Management of Brain Metastases from Non-small Cell Lung Cancer.

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    PURPOSE OF REVIEW: To summarize current approaches in the management of brain metastases from non-small cell lung cancer (NSCLC). RECENT FINDINGS: Local treatment has evolved from whole-brain radiotherapy (WBRT) to increasing use of stereotactic radiosurgery (SRS) alone for patients with limited (1-4) brain metastases. Trials have established post-operative SRS as an alternative to adjuvant WBRT following resection of brain metastases. Second-generation TKIs for ALK rearranged NSCLC have demonstrated improved CNS penetration and activity. Current brain metastasis trials are focused on reducing cognitive toxicity: hippocampal sparing WBRT, SRS for 5-15 metastases, pre-operative SRS, and use of systemic targeted agents or immunotherapy. The role for radiotherapy in the management of brain metastases is becoming better defined with local treatment shifting from WBRT to SRS alone for limited brain metastases and post-operative SRS for resected metastases. Further trials are warranted to define the optimal integration of newer systemic agents with local therapies

    Vitamin D deficiency is widespread in cancer patients and correlates with advanced stage disease: a community oncology experience.

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    The purpose of this study was to correlate serum vitamin D levels with potential clinical variables and to determine the extent of vitamin D deficiency in a large, outpatient oncology practice. One hundred ninety-five consecutive patients referred for consultation at a community radiation oncology center from October 8, 2008 to March 17, 2010 had vitamin D levels ordered. Patients who were deficient in vitamin D were treated with replacement therapy. Demographic and medical data were collected prospectively and subsequently analyzed. Pretreatment baseline patient and tumor characteristics were evaluated with respect to vitamin D concentrations. One hundred and sixty patients were analyzed. A total of 74% of patients had 25-hydroxyvitamin D concentrations considered either deficient (/mL) or suboptimal (20-30 ng/mL). Replacement therapy raised serum vitamin D levels by an average of 15 ng/mL (95% CI = 11-18, P \u3c 0.01). Lower than median serum vitamin D levels were associated with stage III disease in univariate analysis [OR = 2.6 (95% CI = 1.1-6.2), p = 0.04] as well as multivariate analysis adjusted for age, sex, body mass index, and season of draw [OR = 3.3 (95% CI = 1.1-9.7), P = 0.03]. Three-quarters of patients in our series had suboptimal or deficient circulating concentrations of 25-hydroxyvitamin D. Low serum vitamin D levels, independent of age, sex, and body mass index, predicted advanced stage disease

    Evaluation of prediction strategy and care coordination for COPD readmissions.

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    OBJECTIVES: Factors that influence the likelihood of readmission for chronic obstructive pulmonary disease (COPD) patients and the impact of posthospital care coordination remain uncertain. LACE index (L = length of stay, A = Acuity of admission; C = Charlson comorbidity index; E = No. of emergency department (ED) visits in last 6 months) is a validated tool for predicting 30-days readmissions for general medicine patients. We aimed to identify variables predictive of COPD readmissions including LACE index and determine the impact of a novel care management process on 30-day all-cause readmission rate. METHODS: In a case-control design, potential readmission predictors including LACE index were analyzed using multivariable logistic regression for 461 COPD patients between January-October 2013. Patients with a high LACE index at discharge began receiving care coordination in July 2013. We tested for association between readmission and receipt of care coordination between July-October 2013. Care coordination consists of a telephone call from the care manager who: 1) reviews discharge instructions and medication reconciliation; 2) emphasizes importance of medication adherence; 3) makes a follow-up appointment with primary care physician within 1-2 weeks and; 4) makes an emergency back-up plan. RESULTS: COPD readmission rate was 16.5%. An adjusted LACE index of ≥ 13 was not associated with readmission (p = 0.186). Significant predictors included female gender (odds ratio [OR] 0.51, 95% confidence interval [CI] 0.29-0.91, p = 0.021); discharge to skilled nursing facility (OR 3.03, 95% CI 1.36-6.75, p = 0.007); 4-6 comorbid illnesses (OR 9.21, 95% CI 1.17-76.62, p = 0.035) and ≥ 4 ED visits in previous 6 months (OR 6.40, 95% CI 1.25-32.87, p = 0.026). Out of 119 patients discharged between July-October 2013, 41% received the care coordination. The readmission rate in the intervention group was 14.3% compared to 18.6% in controls (p = 0.62). CONCLUSIONS: Factors influencing COPD readmissions are complex and poorly understood. LACE index did not predict 30-days all-cause COPD readmissions. Posthospital care coordination for transition of care from hospital to the community showed a 4.3% reduction in the 30-days all-cause readmission rate which did not reach statistical significance (p = 0.62)

    Disparities in the Local Management of Breast Cancer in the US according to Health Insurance Status.

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    Although standard practice guidelines for breast cancer are clear, the interplay between insurance and practice patterns for the US is poorly defined. This study was performed to test for associations between patient insurance status and presentation of breast cancer as well as local therapy patterns in the US, via a large national dataset. We queried the NCI Surveillance, Epidemiology, and End Results data base for breast cancer cases diagnosed from 2007 to 2011 in women aged 18-64 with nonmetastatic ductal/lobular cancers, treated surgically. We tested for associations between insurance status (insured/Medicaid/uninsured) and choice of surgical procedure (mastectomy/breast conserving surgery [BCS]), omission of radiotherapy (RT) following BCS, and administration of post-mastectomy radiation (PMRT). There were 129,565 patients with localized breast cancer analyzed. The health insurance classification included insured (84.5%), Medicaid (11.5%), uninsured (2.1%) and unknown (1.9%). Medicaid or uninsured status was associated with large, node positive tumors, black race, and low income. The BCS rate varied by insurance status: insured (52.2%), uninsured (47.7%), and Medicaid (45.2%), p \u3c 0.001. In multivariable analysis, Medicaid insurance remained significantly associated with receipt of mastectomy (OR [95% CI] = 1.07 [1.03-1.11]), while RT was more frequently omitted after BCS in both Medicaid (OR [95% CI] = 1.14 [1.07-1.21]) and uninsured (OR [95% CI] = 1.29 [1.14-1.47]) patients. Insurance status was associated with significant variations in breast cancer care in the US. Although patient choice cannot be determined from this dataset, departure from standard of care is associated with specific types of insurance coverage. Further investigation into the reasons for these departures is strongly suggested

    ASTRO APEx

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    AIM: To analyze malpractice trials in radiation oncology and assess how ASTRO APEx METHODS: The Westlaw database was reviewed using PICOS/PRISMA methods. Fisher\u27s exact and Mann-Whitney U tests were used to find factors associated with outcomes. RESULTS: Of 34 cases identified, external beam was used in 26 (77%). The most common factors behind malpractice were excessive toxicity (80%) and lack of informed consent (66%). ASTRO APEx pillars and ROI-LS had applicability to all but one case. Factors favoring the defendant included statute of limitations (odds ratio: 8.1; 95% CI: 1.3-50); those favoring the plaintiff included patient death (odds ratio: 0.7; 95% CI: 0.54-0.94). CONCLUSION: APEx and RO-ILS are applicable to malpractice trials in radiation oncology

    Impact of primary tumor-specific growth rate on treatment failure for nonoropharyngeal head and neck cancers.

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    OBJECTIVES: To investigate the prognostic impact of primary tumor-specific growth rate (TSGR) on treatment outcomes after definitive radiation therapy (RT) for nonoropharyngeal squamous cell carcinoma (non-OPSCC). METHODS: The diagnostic tumor and nodal volumes of 39 non-OPSCC patients were contoured and compared to corresponding RT planning scan volumes to determine TSGR. Overall survival (OS), disease-free survival (DFS), and local recurrence-free survival were evaluated according to the Kaplan-Meier method; and hazard ratios (HR) were estimated using Cox regression. Based on the 75th percentile TSGR of 2.18%, we stratified patients into a high TSGR group (≥ 2.18% per day) and low TSGR group (\u3c 2.18% per day). RESULTS: The median follow-up was 22 months (range: 1-86 months) and median time between diagnostic and simulation computed tomography scans was 22 days (range: 7-170 days). Median RT dose was 70 Gy (range: 60-79.2 Gy). Based on the 75th percentile TSGR, OS at median follow-up was 50.0% for the high TSGR group compared to 92.5% for the low TSGR group (HR [95% confidence interval (CI)] = 2.12[1.16-11.42], P = 0.018). There was a trend toward worse DFS at median follow-up for the high versus low TSGR groups, at 55.6% and 82.3%, respectively (HR [95% CI] = 2.29[0.82-6.38], P = 0.103). CONCLUSION: Our study contributes to growing literature on TSGR as a temporal biomarker in patients with non-OPSCC. Patients with high TSGR ≥2.18% per day have significantly worse OS compared to those with TSGR below this threshold. Efforts to address treatment initiation delays may benefit patients with particularly aggressive and rapidly growing tumors. LEVEL OF EVIDENCE: 4 Laryngoscope, 130:2378-2384, 2020

    Total Mastectomy or Breast Conservation Therapy? How Radiation Oncologist Accessibility Determines Treatment Choice and Quality: A SEER Data-base Analysis.

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    Mastectomy and breast conservation therapy (BCT) are equivalent in survival for treatment of early stage breast cancer. This study evaluated the impact of radiation oncologist accessibility on choice of breast conserving surgery (BCS) versus mastectomy, and the appropriate receipt of radiotherapy after BCS. In the National Cancer Institute Survival, Epidemiology, and End Results data base, the authors selected breast cancer cases from 2004 to 2008 with the following criteria: T2N1M0 or less, lobular or ductal histology, and treatment with simple or partial mastectomy. We combined the Health Resources and Services Administration Area Resource File to define average radiation oncologist density (ROD) by county over the same time period. We evaluated tumor characteristics, demographic information, and ROD with respect to BCS rates and receipt of radiation therapy after BCS in univariable and multivariable analyses. In 118,773 cases analyzed, mastectomy was performed 33.2% of the time relative to BCS. After adjustment for demographic and tumor variables, the odds of having BCS versus mastectomy were directly associated with ROD (multiplicative change in odds for a single unit increase in ROD [95% CI] = 1.02 [1.01-1.03]; p \u3c 0.001). Adjuvant radiation therapy was not administered in 28.2% of BCS cases. When adjusting for demographic and tumor variables, the odds of having BCS without adjuvant radiation were inversely associated with ROD (0.95 [0.94-0.97]; p \u3c 0.001). We observed a direct relationship between ROD and BCS rates independent of demographic and tumor variables, and an inverse trend for omission of radiotherapy after BCS. Access to radiation oncologists may represent an important factor in surgical choice and receiving appropriate BCT in early stage breast cancer
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