There is no doubt that the transformation of a cardiac catheter into a conductance catheter that allows reliable and accurate assessment of lumen cross-sectional area (CSA) will provide a powerful diagnostic and treatment tool for the invasive cardiologist. The objective of this study was to develop a method based on the impedance catheter that allows accurate and reproducible measurements of C...

Mortality and morbidity are significantly higher among patients with dialysis catheters, which has been associated with chronic activation of the immune system. We hypothesized that bacteria colonizing the catheter lumen trigger an inflammatory response. We aimed to evaluate the inflammatory profile of hemodialysis patients before and after locking catheters with an antimicrobial lock solution....

This study evaluated the incidence and risk factors of bloodstream infection (BSI) among patients with a double-lumen central venous catheter (CVC) for hemodialysis (HD) and identified the microorganisms isolated from the bloodstream. A follow-up included all patients (n=156) who underwent hemodialysis by double-lumen CVC at the Federal University of São Paulo-UNIFESP, Brazil, over a one-year p...

The current trend in using percutaneous devices in contemporary medicine and the increased dependence on advanced treatments with technologically improved delivery systems will produce a sustained growth in the number of patients undergoing procedures where a skin-implant interface will be present [1-3,12]. Increasingly, these bio interfaces will also become long-term or permanent interfaces. T...

Aortic dissection (AD) is a life-threatening cardiovascular disease with high mortality rate. The accurate and generalized 3-D reconstruction of AD from CT-angiography can effectively assist clinical procedures surgery plans, however, clinically unavaliable due to the lacking efficient tools. In this study, we presented novel multi-stage segmentation framework for type B extract true lumen (TL)...

A 37 year old female diagnosed as a case of acute myeloid leukemia (AML) underwent allogenic stem cell transplant. A 12.5 French triple lumen Hickman's catheter was inserted via right internal jugular vein under fluoroscopic guidance. Post insertion X-ray confirmed desired position of the catheter tip (Fig. 1). Two days post insertion she developed mild pain in the nape of neck which increased ...

minimize the risk of barotrauma, the following precautions are recommended. multiple distal side holes also may decrease the pressure delivered at the distal end, minimize the catheter whip, and center the catheter within the trachea during jet ventilation.3 1. The patient must be adequately preoxygenated and hyperventilated by the original endotracheal tube using 100% oxygen. 2. An exchange ca...

A novel electrochemically controlled release method for nitric oxide (NO) (based on electrochemical reduction of nitrite ions) is combined with an amperometric oxygen sensor within a dual lumen catheter configuration for the continuous in vivo sensing of the partial pressure of oxygen (PO2) in blood. The on-demand electrochemical NO generation/release method is shown to be fully compatible with...