The proportion of cardiovascular deaths attributable to sudden cardiac death (SCD) is on the rise. Herein lies the rationale for developing risk stratification strategies to predict who will benefit from prophylactic implantable cardioverter-defibrillator (ICD) implantation. Current guidelines recommend prophylactic ICD therapy in patients with reduced left ventricular ejection fraction (LVEF)....

Introduction: Dual-energy X-ray absorptiometry (DXA) can measure bone mineral density (BMD) around joint arthroplasties. DXA has never been used in total wrist arthroplasties (TWA). We investigated (1) whether BMD differs between 2 TWAs implanted the same cadaver forearm, (2) effect of forearm rotation and extension on measured TWA a cadaver, (3) precision patients. Methodology: One ROI distal ...

Results Patients with abnormal TWA (65%) compared with normal TWA (35%) tests were older (60 13 years vs. 57 12 years), were more frequently in NYHA functional class III (22% vs. 19%), and had a modestly lower LVEF (29 7% vs. 31 7%). Primary end point rates in patients with abnormal and normal TWA tests were 6.5% (95% confidence interval [CI] 4.5% to 9.4%) and 1.6% (95% CI 0.6% to 4.4%), respec...

ABSTRACT We present an analysis of spectropolarimetric observations the low-mass weak-line T Tauri stars TWA 25 and 7. The large-scale surface magnetic fields have been reconstructed for both using technique Zeeman Doppler imaging. Our maps reveal predominantly toroidal non-axisymmetric stars. These reinforce wide range that recovered, particularly in pre-main sequence stopped accreting from (n...

Estimation and Assessment of Substance Exposure (EASE) is an artificial intelligence program developed by UK's Health and Safety Executive to assess exposure. EASE computes estimated airborne concentrations based on a substance's vapor pressure and the types of controls in the work area. Though EASE is intended only to make broad predictions of exposure from occupational environments, some occu...

Exposure to methyl methacrylate (MMA), total dust and health symptoms were investigated in 20 dental laboratories located in Tehran, Iran. Time-weighted average (TWA) of MMA and peak concentrations were determined, using XAD-2 tubes followed by GC-FID analysis. Total dusts were evaluated gravimetrically. Health symptoms were asked using a questionnaire. TWA for technicians with direct and indir...

In this study we investigated the effect of recent and chronic lead exposure, and its interaction with ergonomic stressors, on peripheral nerve function. In a cross-sectional design, we used retrospective exposure data on 74 primary lead smelter workers. We measured blood and bone lead levels and, from historical records, calculated lead dose metrics reflecting cumulative lead exposure: working...

PURPOSE To determine the accuracy of smart devices (iPods) to measure intermittent noise and integrate a noise dose in the workplace. MATERIALS AND METHODS In experiment 1, four iPods were each paired with a Larson Davis Spark dosimeter and exposed to randomly fluctuating pink noise in a reverberant sound chamber. Descriptive statistics and the mean difference between the iPod and its paired ...

AIM To determine average personal exposure to nitrous oxide for anaesthesiologists and nurses working in operating rooms (ORs) and intensive care units (ICU) in Clinical Hospital in Shtip, ENT University Clinic in Skopje and General Hospital in Kochani. METHODS To determine TWA exposure nitrous oxide concentration was continuously measured over 8 hours shift within breathing zone of the subje...

A 23 year old woman with idiopathic long QT syndrome had repeated syncopal attacks associated with torsades de pointes. T wave alternans (TWA) was recorded and the QT interval was abnormally prolonged during treadmill exercise test. Monophasic action potential (MAP) alternans also appeared after an abrupt shortening of the cycle length in electrophysiological study. After intravenous administra...