Complication Rate after Carotid Endarterectomy Comparing Patch Angioplasty and Primary Closure.

Background: Carotid endarterectomy (CEA) reduces the risk for stroke in patients with internal carotid artery stenosis. The optimal surgical technique remains subject of debate. Literature suggests patch angioplasty reduces complication risk.

Poroelastic theory applied to the adsorption-induced deformation of vitreous silica.

When vitreous silica is submitted to high pressures under a helium atmosphere, the change in volume observed is much smaller than expected from its elastic properties. It results from helium penetration into the interstitial free volume of the glass network. We present here the results of concurrent spectroscopic experiments using either helium or neon and molecular simulations relating the amount of gas adsorbed to the strain of the network.

Vitreous silica distends in helium gas: acoustic versus static compressibilities.

Sound velocities of vitreous silica are measured under He compression in the pressure range of 0-6 GPa by Brillouin light scattering. It is found that the well-known anomalous maximum in the pressure dependence of the compressibility is suppressed by He incorporation into the silica network. This shows that the elastic anomaly relates to the collapse of the largest interstitial voids in the structure.

Mini-laparoscopic versus conventional laparoscopic cholecystectomy: a randomized controlled trial.

Background: Several studies have reported faster recoveries, lower pain scores, and superior cosmetic results after mini-laparoscopic cholecystectomy (MLC). The purpose of this study was to perform a randomized controlled trial, comparing MLC with conventional laparoscopic cholecystectomy (LC).

Subjects And Methods: Forty-one patients with symptomatic cholecystolithiasis were randomized between the two groups: 23 having undergone LC and 18 MLC.