Catheter-directed embolization is a well-established interventional radiology technique used to treat arterial hemorrhage in a variety of areas in the body. Although embolization has been used for over 20 years to treat trauma victims with massive bleeding and to control hemorrhage after childbirth instead of emergency hysterectomy, the investigation of glue as an embolic agent is new. Embolization is particularly useful because in massive bleeding often there is so much blood coming at the surgeon that it is impossible for the surgeon to see the bleeding site from the outside in order to repair it. Since the interventional technique uses X-rays to visualize the inside of the vessel, the hemorrhage does not interfere with visualization and the interventional radiologist can pinpoint the location of the injury for embolization. In this minimally invasive treatment, a tiny nick is made in the skin and, using imaging, the interventional radiologist guides a catheter through the artery then releases clotting agents – coils or particles-- into the blood vessels. This slows the blood flow and stops the hemorrhage from the inside out. Most often coils or small particles are used as the embolic agent. These are effective in most cases, but there are times when these forms of embolization may not be technically possible. In this study, embolization with the glue, NBCA, successfully stopped arterial bleeding even when previous coil or particle embolization had failed. NBCA was useful in a large number of anatomic locations alone or in combination with other embolic agents, particularly microcoils.
N-butyl cyanoacrylate (NBCA) is a permanent liquid embolic material and tissue adhesive that is approved by the U.S. Food and Drug Administration for use in cerebral arteriovenous malformations. This article summarizes the initial experience with NBCA glue embolization in 16 patients with acute arterial hemorrhage. NBCA embolization was successful in 75 percent of the patients and failed in 12.5 percent in this study at the Los Angeles County and University of Southern California Medical Center.
About Transcatheter Embolization, Choice of Agent, and Possible Role for NBCA
New High-Performance Center Translational Medical Engineering
26.04.2017 | Fraunhofer ITEM
A promising target for kidney fibrosis
21.04.2017 | Brigham and Women's Hospital
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
26.04.2017 | Materials Sciences
26.04.2017 | Agricultural and Forestry Science
26.04.2017 | Physics and Astronomy