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  • ejection fraction
  • A new randomized controlled trial published in Nutrition, Metabolism & Cardiovascular Diseases has found that in those with heart failure, ejection fraction is improved by high-dose vitamin D supplementation. (vitamindcouncil.org)
  • Ejection fraction (EF) is a measurement of how much blood the heart pumps out with each beat. (vitamindcouncil.org)
  • Have to be curious about the D-effects in the peripheral vasculature (where a decrease in resistance in turn leads to an increased ejection fraction), relative to the effects of increased musculature performance in the heart muscle (stronger contractions leading to increased ejection fraction). (vitamindcouncil.org)
  • To evaluate the relation between changes in ejection fraction during the first three months after acute myocardial infarction and myocardial viability. (bmj.com)
  • Left ventricular volumes and ejection fraction were determined from apical views using the Simpson biplane formula. (bmj.com)
  • Multivariate logistic regression analysis was used to define which clinical and echocardiographic variables were related to ≥ 5% improvement in ejection fraction. (bmj.com)
  • Myocardial viability after acute myocardial infarction is the single best predictor of improvement in ejection fraction. (bmj.com)
  • The left ventricular ejection fraction is one of the most powerful predictors of mortality after acute myocardial infarction. (bmj.com)
  • 1- 3 Changes in the ejection fraction occurring after the acute phase have been assessed in several studies. (bmj.com)
  • 4- 9 These showed that, although there was often no overall change, there was a great deal of interpatient variation-indeed, in several reports a significant improvement in the ejection fraction was found, especially in patients with sustained successful reperfusion and in those with the lowest ejection fraction at baseline. (bmj.com)
  • Improvements in the ejection fraction may have a beneficial effect on survival, and this is likely to be greatest in patients with severe left ventricular dysfunction. (bmj.com)
  • 2, 7 It has been found that the final value achieved and the degree of improvement are more important predictors of mortality than the value of the ejection fraction at the time of the acute event. (bmj.com)
  • 15, 16 Thus it is important to determine which variables identify patients who will show an improvement in the ejection fraction. (bmj.com)
  • 17- 22 Our aim in this study was therefore to determine the clinical and echocardiographic predictors of improvement in left ventricular ejection fraction using low dose dobutamine echocardiography in an unselected group of patients with acute myocardial infarction. (bmj.com)
  • large fraction
  • From 1994 until 2004 The Svedberg Laboratory was a national research facility funded to a large fraction from the Swedish Natural Science Research Council (Swedish Research Council). (wikipedia.org)
  • These neutrons come primarily from the reaction 11B + α → 14N + n + 157 keV The reaction itself produces only 157 keV, but the neutron will carry a large fraction of the alpha energy, which will be close to Efusion/3 = 2.9 MeV. (wikipedia.org)
  • beam
  • Dose-Volume Relationships Associated With Temporal Lobe Radiation Necrosis After Skull Base Proton Beam Therapy. (cancerdata.org)
  • To assess the impact of uncertainties in the temporal correlation between motion trajectory and beam delivery sequence, 3 dose distributions for varying temporal correlation were calculated per fraction. (osti.gov)
  • 4D treatment dose reconstruction for scanned ion beam therapy is technically feasible and may evolve into a valuable tool for dose assessment. (osti.gov)
  • The beam paths converge in the target volume, delivering a lethal cumulative dose of radiation there, while limiting the dose to the adjacent healthy tissue. (wikipedia.org)
  • The first patient was treated in April 1989 with a modified 72 MeV beam to 54,5 Gy in 4 fractions using a single field technique. (wikipedia.org)
  • The first patient with superficially located inoperabel AVM:s was treated in April 1991 with a modified 100 MeV beam utilizing two portals to a total dose of 20 Gy in two fractions. (wikipedia.org)
  • intravenous
  • In normal volunteers, single intravenous doses of 0.15 mg/kg of ondansetron had no effect on esophageal motility, gastric motility, lower esophageal sphincter pressure, or small intestinal transit time. (nih.gov)
  • All of the marketed platinum analogues must be administered via intravenous infusion is one of the main disadvantages for these platinum compounds due to severe, dose-limiting effects. (wikipedia.org)
  • reduction
  • Ionizing-radiation-resistant organisms (IRRO) were defined as organisms for which the dose of acute ionizing radiation (IR) required to achieve 90% reduction (D10) is greater than 1000 gray (Gy) Radioresistance is surprisingly high in many organisms, in contrast to previously held views. (wikipedia.org)
  • Performance status is often used as a measure to determine whether a patient can receive chemotherapy, or whether dose reduction is required. (wikipedia.org)
  • efficacy
  • A Phase 0 study gives no data on safety or efficacy, being by definition a dose too low to cause any therapeutic effect. (wikipedia.org)
  • constraints
  • Dose constraints per the RTOG 0915 protocol were achieved for all critical organs except chest wall in BRT. (termedia.pl)
  • In addition to mean heart dose, breast cancer RT treatment planning should also include constraints for cardiac subvolumes such as LV and LAD. (springer.com)
  • normal tissue
  • The depth dose distribution, with the Bragg peak, and the relatively sharp penumbra, enables the concentration of radiation to the target volume and minimizes the dose to normal tissue surrounding the target. (wikipedia.org)
  • tolerance
  • DCM fraction also showed improved glucose tolerance. (frontiersin.org)
  • In a patient fully withdrawn from opioids, going back to an intermittent schedule or maintenance dosing protocol, a fraction of the old tolerance level will rapidly develop, usually starting two days after therapy is resumed and, in general, leveling off after day 7. (wikipedia.org)
  • outcome
  • The aim of the present review was to critically discuss the clinical evidence on late cardiac reactions based on dose-dependent outcome reports for mean heart doses as well as doses to cardiac substructures. (springer.com)
  • Mean heart doses and doses to cardiac substructures were focused upon based on dose-dependent outcome reports. (springer.com)
  • higher
  • The majority of epithelial cancers are only moderately radiosensitive, and require a significantly higher dose of radiation (60-70 Gy) to achieve a radical cure. (wikipedia.org)
  • volumes
  • Clinical target volume (CTV) coverage was analyzed using the volumes receiving at least 95% (V{sub 95}) and 107% (V{sub 107}) of the planned doses. (osti.gov)
  • extract
  • In this study, the antidiabetic effect of the methanolic extract, dichloromethane (DCM), butanol (BuOH) and aqueous fractions of Clerodendrum volubile leaves were investigated in type 2 diabetic rats for their effect on glucose homeostasis, serum insulin level and hepatic biomarkers, lipid profile, pancreatic redox balance and Ca 2+ levels, and β-cell distribution and function. (frontiersin.org)