BACKGROUND AND PURPOSE Several authorities have recently advocated carotid stenting for recurrent carotid stenosis because of the perception that redo surgery has a higher complication rate than primary carotid endarterectomy (CEA). This study compares the early and late results of reoperations versus primary CEA. METHODS All reoperations for recurrent carotid stenosis performed during a rece...

BACKGROUND pulmonary insufficiency after transannular patch repair of tetralogy of Fallot is associated with a poorer outcome. OBJECTIVE to compare the results of 2 techniques of transannular patch repair. METHODS 93 patients with tetralogy of Fallot and hypoplasia of the right ventricular outflow tract underwent repair between 1990 and 2004 by 2 different techniques. Their ages ranged from...

INTRODUCTION Inferior pancreatico-duodenal artery (IPDA) aneurysms are very rare and commonly associated with coeliac axis stenosis or occlusion due to atherosclerosis, thrombosis or median arcuate ligament syndrome. We present a case of a surgical repair of an IPDA aneurysm with the use of a supra-coeliac aorto-hepatic bypass with a polytetrafluoroethylene (PTFE) graft, following a failed init...

We present a simple, efficient, and high-throughput methodology for the fabrication of ordered nanoporous polymeric surfaces with areas in the range of cm(2). The procedure is based on a two-stage replication of a master nanostructured pattern. The process starts with the preparation of an ordered array of poly(tetrafluoroethylene) (PTFE) free-standing nanopillars by wetting self-ordered porous...

Table 1. Types of materials used in pelvic organ prolapse repair (5,7,8,9). A. Biologics: 1Autologous fascia: Rectus fascia, fascia lata, vaginal mucosa, skin graft 2Heterologous: i) Allogenic: CadavaericDura matter, Rectus sheath, Fascia lata, Dermis, ii) Xenogenic: Porcine dermis, small intestine submucosa, bovine pericardium, fetal bovine dermis. B. Synthetics: 1Absorbable: Polyglycolic acid...

in the past 30 years, electroless nickel (en) plating has grown to such proportions that these coatingsand their applications are now found underground, in outer space, and in a myriad of areas inbetween. moreover, in order to further improve the mechanical and tribological properties of thenickel-phosphorous (ni-p) coatings, ni-p/ptfe composite coatings can be obtained, which provideseven grea...

The anatomy of the urethral sphincter in both sexes has not been undisputed since it was first described more than 160 years ago. Although 18th and 19th century explanations of the urethral sphincter were most precise and thorough, contemporary textbooks lack details and include inaccuracies and ambiguous statements or illustrations [1,2]. There is currently a need to examine how much we know, ...

For application in structural health monitoring, a folded patch antenna has been previously designed as a wireless sensor that monitors strain and crack in metallic structures. Resonance frequency of the RFID patch antenna is closely related with its dimension. To measure stress concentration in a base structure, the sensor is bonded to the structure like a traditional strain gage. When the ant...