Search results for "Catheterization"
showing 10 items of 191 documents
Molecular typing of Agrobacterium species isolates from catheter-related bloodstream infections.
2004
AbstractAgrobacteriumisolates from intravenous catheters of three hospitalized patients were initially identified asA. tumefaciens,but inability to produce 3-ketolactose revealed that two of them wereA. vitis.However, rDNA analysis correlated all of the isolates toA. tumefaciens.Pulsed-field gel electrophoresis analysis ascertained the nosocomial transmission of the infection.
Rifampin-impregnated silicone catheters: a potential tool for prevention and treatment of CSF shunt infections.
2003
Background: Infection continues to be one of the major complications of cerebro-spinal fluid shunting procedures. Recent insights in the pathophysiological mechanism of these foreign body infections have elucidated the difficulty of achieving successful treatment without device removal. The development of a rifampin-impregnated silicone catheter yielded excellent results in infection prevention and treatment in vitro as well as in an animal model. Patients and Methods: Here, we describe the application of this device in two patients with a complicated course of shunt infection. Results: In one patient the rifampin-impregnated shunt system was implanted after external drainage to prevent fur…
Purple urine bag syndrome in an elderly subject
2012
strain. Given the absence of bothclinical signs (apart from urinary retention) and inflamma-tory syndrome, no antibiotic therapy was initiated. Six daysafterinsertingtheindwellingcatheter,purplecolorationoftheurine bag and the catheter appeared, with no modifications ofurine color (Fig. 1). Another urine microscopy and culture per-formedlongaftercatheterwithdrawal,showeddisappearanceof the
Surface Modification of Poly(Vinylchloride) for Manufacturing Advanced Catheters
2017
Polymeric materials, due to their excellent physicochemical properties and versatility found applicability in multiples areas, including biomaterials used in tissue regeneration, prosthetics (hip, artificial valves), medical devices, controlled drug delivery systems, etc. Medical devices and their applications are very important in modern medicine and the need to develop new materials with improved properties or to improve the existent materials is increasing every day. Numerous reasearches are activated in this domain in order to obtain materials/surfaces that does not have drawbacks such as structural failure, calcifications, infections or thrombosis. One of the most used material is pol…
Long-term results of conventional myotomy in patients with achalasia: a prospective 20-year analysis.
2006
Myotomy has proved to be an efficient primary therapy in patients with achalasia, especially in younger patients (<40 years of age). The results of laparoscopic myotomy cannot be finally assessed, on account of the shorter postoperative follow-up. Thus, there are considerable data regarding intermediate-term outcomes after laparoscopic myotomy. The aim of our study was a 20-year analysis of the conventional cardiomyotomy as the underlying basis assessing the results of minimal-invasive surgery. Within 20 years (September 1985 through September 2005), 161 operations for achalasia were performed in our clinic. Enrolled in this study were 108 patients with a conventional, transabdominal myotom…
Effects of pneumatic dilation and myotomy on esophageal function and morphology in patients with achalasia.
2005
Only two treatment modalities–pneumatic dilation and Heller myotomy–promise long-term relief from dysphagia and regurgitation in patients with achalasia. The objective of this study was to determine whether both options differ in their effects on esophageal function, morphology, and improvement in symptoms. Eighty-nine patients diagnosed with achalasia between January 1980 and December 2002 at a single center were enrolled in this study. Sixty-four patients underwent pneumatic dilation and 25 Heller myotomy in combination with an anterior semifundoplication (Dor procedure). Clinical evaluation (Eckardt-Score), esophageal manometry, and barium swallow were performed before and within 6 mont…
Impact of Minimally Invasive Surgery in the Spectrum of Current Achalasia Treatment Options
2011
Minimally invasive Heller myotomy has evolved the “gold standard” procedure for achalasia in the spectrum of current treatment options. The laparoscopic technique has proved superior to the thoracoscopic approach due to improved visualization of the esophagogastric junction. Operative controversies most recently include the length of the myotomy, especially of its fundic part, with respect to the balance between postoperative persistent dysphagia and development of gastroesophageal reflux, as well as the type of the added antireflux procedure. Perioperative mortality should approach 0%, and favorable long-term results can be achieved in > 90%.
Subcutaneous Veins Depth Estimation Method Using Monte Carlo Simulations
2015
International audience; Subcutaneous veins localization is basic and important step for any intravenous medication administration. Due to different physiological characteristics, mainly darker skin tone, scars or dehydrated condition of patients, medical staff face difficulty in veins localization. Through near infrared imaging technology the veins can be visualized due to high contrast between veins and skin tissue in this modality. Information on the depth of veins is equally important for proper catheterization or venipuncture procedures. Patients have different veins depth due to the different amount of fat present in the subcutaneous layer. The depth of veins from the skin surface cann…
Adenoviral RB2/p130 gene transfer inhibits smooth muscle cell proliferation and prevents restenosis after angioplasty.
1999
Abstract —Smooth muscle cell (SMC) proliferation that results in neointima formation is implicated in the pathogenesis of atherosclerotic plaques and accounts for the high rates of restenosis that occur after percutaneous transluminal coronary angioplasty, a widespread treatment for coronary artery disease. Endothelial lesions trigger intense proliferative signals to the SMCs of the subintima, stimulating their reentry into the cell cycle from a resting G 0 state, resulting in neointima formation and vascular occlusion. Cellular proliferation is negatively controlled by growth-regulatory or tumor-suppressor genes, or both, such as the retinoblastoma gene family members ( RB/p105, p107, RB2…
Naked DNA delivery to whole pig cardiac tissue by coronary sinus retrograde injection employing non-invasive catheterization.
2010
Background Hydrodynamic injection has demonstrated to be very efficient in the liver of small animals, although this procedure must be translated to the clinical practice in a milder but no less efficient way. The present study evaluates the capacity of non-invasive interventional catheterization as a procedure for naked DNA delivery to the heart in large animals. Methods Two catheters were placed in the coronary sinus: one of them to block blood circulation and the other to retrogradely inject 50 ml of a saline solution of DNA (20 µg/ml) containing the enhanced green fluorescent protein (EGFP) gene, at a flow rate of 5 ml/s. Results The results obtained show that EGFP protein, identified b…