Post-LVAD implantation anti-coagulation therapy consisted of warfarin, aspirin and dipyridamole.
RESULTS: Thirty-two of the 172 patients (19%) had GI bleeding after 63 +/-
62 (range 8 to 241) days of HMII support. Ten patients had GI bleeding from an AVM; these included 3 patients who had 2 bleeding episodes and 2 patients who had 5 episodes each. Sixteen patients had upper GI bleeding (10 hemorrhagic AZD6244 supplier gastritis, 4 gastric AVM, 2 Mallory-Weiss syndrome), 15 had lower GI bleeding (6 diverticulosis, 6 jejunal AVM, 1 drive-line erosion of the colon, 1 sigmoid polyp, 1 ischemic colitis) and 1 had upper and lower GI bleeding (1 colocutaneous and gastrocutaneous fistula). All GI bleeding episodes were successfully managed medically.
CONCLUSIONS: Arteriovenous malformations can cause GI bleeding in patients with continuous-flow LVADs. In all cases in this series, GI bleeding was successfully managed without the need for surgical intervention. J Heart Lung Transplant 2011;30:849-53 (C) 2011 International β-Nicotinamide Society for Heart and Lung Transplantation. All rights reserved.”
“It is very important to
control the elemental composition and bonding structure at the gate electrode/gate dielectrics interface in metal-oxide-semiconductor transistor devices because this determines the threshold voltage of the gate electrode. In this study, we investigated the structure at the interface between the antimony (Sb)-doped nickel-fully-silicide gate electrode and SiO2 dielectrics by employing high-spatial resolution techniques such as energy dispersive x-ray spectroscopy and electron energy-loss spectroscopy using a scanning transmission electron microscope. In one region, we found a thin nickel layer at the NiSi/SiO2 interface originating
from the migration of native oxide at the face of the poly-silicon. In another region, a Sb pileup was detected at the NiSi/SiO2 interface where the Ni L-3-edge spectrum showed Ni-Sb bonding, then it was suggested that Sb atoms exist at the bottom of NiSi, substituting for Si atoms in NiSi. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3561370]“
“PURPOSE: To assess the risk for and circumstances of serious complications during peribulbar and retrobulbar anesthesia.
SETTING: University Nutlin-3a in vivo eye departments, Freiburg and Wurzburg, Germany, and Skopje, Macedonia.
METHODS: This retrospective analysis comprised patients who received secondary care for complications of inadvertent globe perforation during peribulbar or retrobulbar injections over a 17-year period.
RESULTS: The review identified 9 inadvertent globe perforations that led to a variety of complications, ranging from subretinal hemorrhage to a globe rupture. Two cases were minor (subretinal hemorrhage with spontaneous resorption and retinal break requiring photocoagulation). All other cases required 1 or more vitrectomies to resolve intraocular hemorrhage and retinal detachment. Most cases still had significant functional impairment after treatment.