RESULTS: At implantation, 48(5%) patients were underweight, 596(67%) normal weight, 164(18%) obese and 88 (10%) extremely obese. BMI extremes were associated with differences in creatinine, albumin, age, central venous pressure and etiology. BMI was not associated with survival in the univariate analysis (p = 0.83) or in adjusted models (extremely obese: hazard

ratio [HR] 1.29, p = 0.231; obese: HR 0.94, p = 0.723; underweight: HR 1.23, p = 0.452). Underweight patients were more likely selleck to have bleeding events (p < 0.001), whereas extremely obese patients had higher rates of device-related infection (p = 0.041) and rehospitalization (p = 0.014).

CONCLUSIONS: Overall survival in patients receiving CF LVAD is similar across BMI categories. Carefully selected patients at both extremes of BMI have good mid-term survival after LVAD and should be considered for LVAD implantation relative to overall risk profile. J Heart

Lung Transplant 2012;31:167-72 (C) 2012 International Society for Heart and Lung Transplantation. All rights reserved.”
“We report compression-compression fatigue simulations on model metallic-glass nanowires up to a 4% maximum compressive strain and 100 cycles using the molecular dynamics method. The GSK525762A distribution and irreversibility of the fatigue-induced deformations are characterized by the local shear strain and rise of the system temperature, respectively. Furthermore, the system potential energy, structural signatures

in terms of icosahedral centers, and radial distribution functions are obtained to identify structural transformations during cyclic loading. No noticeable changes on the aforementioned isotropic structural signatures have been found during fatigue tests. Based on a binary view of the constituting local structures (stable clusters and floppy clusters) in metallic glasses, we attribute the irreversible deformation to inter-conversion of CH5183284 Angiogenesis inhibitor those floppy clusters, which leads to a constant composition of stable and floppy clusters. Finally, uniaxial compression tests were carried out on the cyclically loaded samples. The mechanical behaviors of fatigue-tested samples are rather similar to the original sample. Upon cyclic loading, unlike macroscopic samples, a metallic-glass nanowire is free of permanent structural damage, and therefore does not exhibit deteriorated mechanical behaviors. The excellent fatigue-resistance behavior of a metallic-glass nanowire might be related to its defect-free structure (no stress concentrators). It appears that defects may play a central role in fatigue damages in experimental metallic-glass systems. (C) 2011 American Institute of Physics. [doi:10.1063/1.3610443]“
“Objective. The aim of this study was to compare the radiographic dimensional changes of sinus graft height above and between placed implants, and evaluate the factors effecting these changes with 2 different grafting materials and both combination.

Study design.