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https://www.readbyqxmd.com/read/28431428/computational-and-in-vitro-experimental-investigation-of-intrathecal-drug-distribution-parametric-study-of-the-effect-of-injection-volume-cerebrospinal-fluid-pulsatility-and-drug-uptake
#1
Kevin M Tangen, Roxanne Leval, Ankit I Mehta, Andreas A Linninger
BACKGROUND: Intrathecal drug delivery is an attractive option to circumvent the blood-brain barrier for pain management through its increased efficacy of pain relief, reduction in adverse side effects, and cost-effectiveness. Unfortunately, there are limited guidelines for physicians to choose infusion or drug pump settings to administer therapeutic doses to specific regions of the spine or the brain. Although empiric trialing of intrathecal drugs is critical to determine the sustained side effects, currently there is no inexpensive in vitro method to guide the selection of spinal drug delivery parameters...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28431348/evaluation-of-structural-effects-on-the-flocculation-performance-of-a-co-graft-starch-based-flocculant
#2
Zhouzhou Liu, Hua Wei, Aimin Li, Hu Yang
The molecular structure of a material substantially determines its final application performance. In this work, a series of starch-based flocculants with different charge densities and average graft chain lengths were prepared by the co-graft polymerization of acrylamide and [(2-methacryloyloxyethyl) trimethyl ammonium chloride] (St-g-PAM-co-PDMC). The flocculation performance of St-g-PAM-co-PDMC was studied systematically at neutral pH using kaolin suspension and sodium humate (NaHA) aqueous solution as synthetic wastewaters...
April 18, 2017: Water Research
https://www.readbyqxmd.com/read/28430740/low-dose-computed-tomography-scans-with-automatic-exposure-control-for-patients-of-different-ages-undergoing-cardiac-pet-ct-and-spect-ct
#3
Ching-Ching Yang, Bang-Hung Yang, Chun-Yuan Tu, Tung-Hsin Wu, Shu-Hsin Liu
PURPOSE: This study aimed to evaluate the efficacy of automatic exposure control (AEC) in order to optimize low-dose computed tomography (CT) protocols for patients of different ages undergoing cardiac PET/CT and single-photon emission computed tomography/computed tomography (SPECT/CT). METHODS: One PET/CT and one SPECT/CT were used to acquire CT images for four anthropomorphic phantoms representative of 1-year-old, 5-year-old and 10-year-old children and an adult...
April 20, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28430016/the-use-of-intravenous-lidocaine-for-the-management-of-acute-pain-secondary-to-traumatic-ankle-injury
#4
Billy Sin, Diana Gritsenko, Grace Tam, Kimberly Koop, Eva Mok
Sports-related injuries are a frequent cause of visits to the emergency department (ED) across the United States. A majority of these injuries affect the lower extremities with the ankle as the most frequently reported site. Most sports-related injuries are not severe enough to require inpatient hospitalization; however, they often lead to acute distress and pain which require prompt treatment with analgesics. Approximately 22% of patients who presented to the ED required pharmacotherapy for acute pain management...
January 1, 2017: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28429628/relationship-of-steroid-dosing-and-duration-of-mechanical-ventilation-in-adult-patients-with-acute-exacerbations-of-chronic-obstructive-pulmonary-disease
#5
Jennifer McCann, Katherine Teare, Emily Cochard, Brent Toney
BACKGROUND: The optimal steroid dose for patients who require mechanical ventilation (MV) for acute exacerbation of chronic obstructive pulmonary disease (AECOPD) is unknown. OBJECTIVE: The primary objective of the study is to describe the relationship between steroid doses prescribed and duration of MV. METHODS: This was a retrospective study of patients admitted between October 2013 and September 2014 who were prescribed steroids and received MV for ≥48 hours for AECOPD...
January 1, 2017: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28429574/flip-angle-optimization-for-balanced-ssfp-cardiac-cine-imaging-following-the-application-of-standard-extracellular-contrast-agent-gadobutrol
#6
Daniel L R Kuetting, Darius Dabir, Julian Luetkens, Andreas Feisst, Rami Homsi, Daniel Thomas, Hans H Schild, Alois M Sprinkart
PURPOSE: To investigate the effect of the flip angle (FA) on the blood-myocardium contrast and to define the FA leading to highest image quality in contrast-enhanced balanced steady-state free precession (bSSFP) images. bSSFP images provide excellent contrast between myocardium and blood with high signal-to-noise and contrast-to-noise ratios (SNR, CNR). In clinical practice, bSSFP images are typically acquired following the injection of extracellular contrast agents (ECAs), although ECAs decrease the blood-myocardium contrast...
April 21, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28429283/use-of-hormones-tissue-factors-and-bioengineering-in-the-management-of-hypospadias
#7
Aparajita Mitra, Yogesh Kumar Sarin
Hypospadiology is a rapidly evolving field. Progress in the understanding of how hormonal therapy affects the growth of the phallus has allowed surgeons to optimize the tissues for surgery. But conflicting data from a number of studies and a lack of consensus on drugs, their dosing, mode of delivery and timing of use means that the creation of protocols is unlikely to happen in the near future. Nonetheless, there is a hope and the standardization of scientific reporting will make it easier to compare data at the global level...
April 21, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28429198/managing-the-perioperative-patient-on-direct-oral-anticoagulants
#8
Jordan Leitch, Janet van Vlymen
PURPOSE: Patients are increasingly treated with direct oral anticoagulants (DOACs) for the prevention of stroke due to non-valvular atrial fibrillation and for the treatment of venous thromboembolism. When these patients present for urgent or emergent surgical procedures, they present a challenge to the anesthesiologist who must manage perioperative risk due to anticoagulation. The purpose of this module is to review the literature surrounding the perioperative management of DOACs. Timing, laboratory monitoring, and availability of reversal agents are important considerations to optimize patients being treated with DOACs who require emergent surgery...
April 20, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/28428677/hypothyroidism-in-pediatric-population-bosnian-and-herzegovinian-situation
#9
Edo Hasanbegovic, Snijezana Hasanbegovic, Edin Begic
INTRODUCTION: Thyroid gland diseases in children are in second place by frequency among all endocrine disorders. When interpreting the results of the thyroid function assessment it should be taken into account the significant differences in the concentrations of TSH, thyroid hormones, thyroid binding proteins and calcitonin among children of different ages. GOAL: To present the age and sex structure of the patients diagnosed with hypothyroidism, evaluate diagnostic methods for making diagnosis, evaluation of etiology of hypothyroidism, with special review of the therapeutic modality...
February 2017: Medical Archives
https://www.readbyqxmd.com/read/28428474/evaluation-of-absorbed-dose-for-cbct-in-image-guided-radiation-therapy-comparison-of-each-devices-and-facilities
#10
Yumiko Kitazato, Noriyuki Kuga, Katsutoshi Shirieda, Masahiro Enzaki, Yuji Nakaguchi, Yoshinobu Shimohigashi, Toshihisa Kawasaki, Masahiko Toyoda, Daisuke Kawahara, Fujio Araki, Shinji Kawamura
Recently, intensity-modulated radiation therapy (IMRT) is used worldwide, highly accurate verification of the location using image-guided radiation therapy (IGRT) has become critical. However, the use of cone-beam computed tomography (CBCT) to ascertain the location each time raises concerns about its influence on radiotherapy dosage and increased radiation exposure. The purpose of this study was to measure the absorbed dose using nine kilovoltage (kV) devices and two megavoltage (MV) devices (total 11 devices) at eight facilities, compare the absorbed dose among the devices, and assess the characteristics of the respective devices to ensure optimal clinical operation...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28428322/glycemic-control-during-continuous-subcutaneous-insulin-infusion-versus-multiple-daily-insulin-injections-in-type-2-diabetes-individual-patient-data-meta-analysis-and-meta-regression-of-randomized-controlled-trials
#11
REVIEW
John C Pickup, Yves Reznik, Alex J Sutton
OBJECTIVE: To compare glycemic control during continuous subcutaneous insulin infusion (CSII) and multiple daily insulin injections (MDI) in people with type 2 diabetes to identify patient characteristics that determine those best treated by CSII. RESEARCH DESIGN AND METHODS: Randomized controlled trials were selected comparing HbA1c during CSII versus MDI in people with type 2 diabetes. Data sources included Cochrane database and Ovid Medline. We explored patient-level determinants of final HbA1c level and insulin dose using Bayesian meta-regression models of individual patient data and summary effects using two-step meta-analysis...
May 2017: Diabetes Care
https://www.readbyqxmd.com/read/28428019/radiation-therapy-for-oropharyngeal-squamous-cell-carcinoma-executive-summary-of-an-astro-evidence-based-clinical-practice-guideline
#12
David J Sher, David J Adelstein, Gopal K Bajaj, David M Brizel, Ezra E W Cohen, Aditya Halthore, Louis B Harrison, Charles Lu, Benjamin J Moeller, Harry Quon, James W Rocco, Erich M Sturgis, Roy B Tishler, Andy Trotti, John Waldron, Avraham Eisbruch
PURPOSE: To present evidence-based guidelines for the treatment of oropharyngeal squamous cell carcinoma (OPSCC) with definitive or adjuvant radiation therapy (RT). METHODS AND MATERIALS: The American Society for Radiation Oncology convened the OPSCC Guideline Panel to perform a systematic literature review investigating the following key questions: (1) When is it appropriate to add systemic therapy to definitive RT in the treatment of OPSCC? (2) When is it appropriate to deliver postoperative RT with and without systemic therapy following primary surgery for OPSCC? (3) When is it appropriate to use induction chemotherapy in the treatment of OPSCC? (4) What are the appropriate dose, fractionation, and volume regimens with and without systemic therapy in the treatment of OPSCC? RESULTS: Patients with stage IV and stage T3 N0-1 OPSCC treated with definitive RT should receive concurrent high-dose intermittent cisplatin...
April 11, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28427988/obesity-bariatric-surgery-and-vitamin-d
#13
REVIEW
Joao Lindolfo C Borges, Isabella Santiago de M Miranda, Marta M S Sarquis, Victoria Borba, Sergio Setsuo Maeda, Marise Lazaretti-Castro, Neil Blinkey
The high prevalence of obesity is a worldwide problem associated with multiple comorbidities, including cardiovascular diseases. Vitamin D deficiency with secondary hyperparathyroidism is common in obese individuals and can be aggravated after bariatric surgery. Moreover, there is no consensus on the optimal supplementation dose of vitamin D in postbariatric surgical patients. We present new data on the variability of 25(OH)D response to supplementation in postmenopausal obese women. It is important to recognize and treat vitamin D deficiency before bariatric surgery to avoid postoperative complications, such as metabolic bone disease with associated high fracture risk...
April 17, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28427847/tetanus-vaccines-who-position-paper-february-2017-recommendations
#14
(no author information available yet)
This article presents the World Health Organization's (WHO) recommendations on the use of tetanus toxoid (TT) vaccines excerpted from the WHO position paper on tetanus vaccines - February 2017, published in the Weekly Epidemiological Record [1]. This position paper replaces the May 2006 WHO position paper on tetanus vaccines (Tetanus vaccines: WHO position paper, 2006). The position paper summarizes the recent developments in the field of tetanus prevention and provides revised guidance on the optimal timing of recommended tetanus vaccine booster doses...
April 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28427668/synthesis-of-hydroxyapatite-nanorods-for-application-in-water-defluoridation-and-optimization-of-process-variables-advantage-of-ultrasonication-with-precipitation-method-over-conventional-method
#15
Dhiraj Mehta, Poonam Mondal, Virendra Kumar Saharan, Suja George
This research work presents the synthesis of hydroxyapatite (Hap) nanorods for defluoridation of drinking water by using both conventional (CM) and ultrasonication with precipitation (USPM) methods. Calcium nitrate was reacted with potassium phosphate in presence of ammonia for controlled pH to synthesize Hap nanorods, which was characterized using FTIR, XRD, SEM, TG-DTA, and TEM/EDS for determining its phase composition, structural and thermal decomposition behavior. When USPM method was used for synthesis, the yield of the Hap nanorods was improved from 83...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427640/comparative-evaluation-of-maceration-and-ultrasonic-assisted-extraction-of-phenolic-compounds-from-fresh-olives
#16
Junlin Deng, Zhou Xu, Chunrong Xiang, Jing Liu, Lijun Zhou, Tian Li, Zeshen Yang, Chunbang Ding
Ultrasonic-assisted extraction (UAE) and maceration extraction (ME) were optimized using response surface methodology (RSM) for total phenolic compounds (TPC) from fresh olives. The main phenolic compounds and antioxidant activity of TPC were also investigated. The optimized result for UAE was 22mL/g of liquid-solid ratio, 47°C of extraction temperature and 30min of extraction time, 7.01mg/g of yielding, and for ME was 24mL/g of liquid-solid ratio, 50°C of extraction temperature and 4.7h of extraction time, 5...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427529/primary-central-nervous-system-lymphoma
#17
REVIEW
Giovanni Citterio, Michele Reni, Gemma Gatta, Andrés José Maria Ferreri
Primary CNS lymphomas (PCNSL) represent a subgroup of malignancies with specific characteristics, aggressive course, and unsatisfactory outcome in contrast with other lymphomas comparable for tumour burden and/or histological type. Despite a high chemo- and radiosensitivity, remissions are frequently shortlasting, mainly because the blood brain-barrier limits the access of many drugs to the CNS. Moreover, survivor patients are at high risk of developing severe treatment-related toxicity, mainly disabling neurotoxicity, raising the question of how to balance therapy intensification with side-effects control...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28427525/precision-medicine-for-early-breast-cancer-radiotherapy-opening-up-new-horizons
#18
REVIEW
Jacques Bernier
So far most efforts put forth to test the value of predictive and prognostic tools in the field of breast radiotherapy remained globally disappointing, or at least below the convincing levels reached for systemic therapy. Nevertheless the addition of predictive tools to the clinical armament tends to prevail over the use of the sole prognostic factors, also in radiotherapy. A number of predictive assays, clinically validated or not, have recently elicited significant associations between molecular profiles and tumor biological aggressiveness and/or radiosensitivity levels...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28427508/review-of-current-evidence-available-for-guiding-optimal-enoxaparin-prophylactic-dosing-strategies-in-obese-patients-actual-weight-based-vs-fixed
#19
REVIEW
Zikai He, Hana Morrissey, Patrick Ball
BACKGROUND: The current debate over the optimal Enoxaparin prophylactic dosing strategies in obese patients centre around whether it should be based on the actual weight of the patient (i.e. weight-based), or at an artificially fixed amount, as it is the case in Australia (40mg daily). The vast majority of the evidence available today is laboratory-based, measuring serum Antifactor-Xa activities as a marker for physiological response. AIM: The aim of the parent study is to compare the clinical outcomes for obese patients who received fixed doses of enoxaparin compared to those who received weight-based doses within the licensed dosage recommendations...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28427304/translating-u-500r-randomized-clinical-trial-evidence-to-the-practice-setting-a-diabetes-educator-expert-prescriber-team-approach
#20
Paula M Bergen, Davida F Kruger, April D Taylor, Wael E Eid, Arti Bhan, Jeffrey A Jackson
Purpose The purpose of this article is to provide recommendations to the diabetes educator/expert prescriber team for the use of human regular U-500 insulin (U-500R) in patients with severely insulin-resistant type 2 diabetes, including its initiation and titration, by utilizing dosing charts and teaching materials translated from a recent U-500R clinical trial. Conclusions Clinically relevant recommendations and teaching materials for the optimal use and management of U-500R in clinical practice are provided based on the efficacy and safety results of and lessons learned from the U-500R clinical trial by Hood et al, current standards of practice, and the authors' clinical expertise...
April 1, 2017: Diabetes Educator
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