Complexes featuring multiple metal centres are of growing interest regarding metal-metal cooperation and its tuneability. Here the synthesis and characterisation of heterobimetallic complexes of a 3d metal (4: Mn, 5: Co) and lanthanum supported by a (1,1,1-tris[(3-methoxysalicylideneamino)methyl]ethane) ligand is reported, as well as discussion of their electronic structure electron paramagnetic resonance (EPR) spectroscopy, electrochemical experiments and computational studies. Competitive binding experiments of the ligand and various metal salts unequivocally demonstrate that in these heterobimetallic complexes the 3d metal (Mn, Co) selectively occupies the κ-NO binding site of the ligand, whilst La occupies the κ-O metal binding site in line with their relative oxophilicities.
View Article and Find Full Text PDFBackground: Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) may improve Systolic Blood Pressure (SBP) in hypovolemic shock. It has, however, not been studied in patients with impending traumatic cardiac arrest (ITCA). We aimed to study the feasibility and clinical outcome of REBOA in patients with ITCA using data from the ABOTrauma Registry.
View Article and Find Full Text PDFBackground: Rectal cancer represents a leading cause of mortality worldwide. Staging defines the local and distant extent of the disease, guides management, and predicts prognosis. Different modalities are available for staging including TRUS (transrectal ultrasound), CT (computed tomography), and MRI (magnetic resonance imaging).
View Article and Find Full Text PDFBoerhaave syndrome refers to a spontaneous perforation of the esophagus that results from severe straining or vomiting. This uncommon situation may lead to serious outcome with chemical mediastinitis, and is associated with high morbidity and mortality. Surgery, although associated with high morbidity and mortality remains the treatment of choice, whereas endoscopic management with stent placement is preserved to treat inoperable patients.
View Article and Find Full Text PDFEur J Trauma Emerg Surg
August 2018
Purpose: Resuscitative endovascular balloon occlusion of the aorta (REBOA) is a technique for temporary stabilization of patients with non-compressible torso hemorrhage. This technique has been increasingly used worldwide during the past decade. Despite the good outcomes of translational studies, clinical studies are divided.
View Article and Find Full Text PDFPurpose: To describe the usage of aortic balloon occlusion (ABO), based on a multidisciplinary approach in severe trauma patients, emphasizing the role of the interventional radiologist in primary trauma care.
Methods: We briefly discuss the relevant literature, the technical aspects of ABO in trauma, and a multidisciplinary approach to the bleeding trauma patient. We describe three severely injured trauma patients for whom ABO was part of initial trauma management.
Scand J Trauma Resusc Emerg Med
September 2009
Combined cervicothoracical vascular traumas are very uncommon, mostly resulting from penetrating injuries. These injuries are accompanied with very high morbidity and mortality rates. In this manuscript we present a case of hemodinamycally unstable trauma patient whose major injury was penetrating trauma of both cervical and mediastinal major vessels.
View Article and Find Full Text PDFAJNR Am J Neuroradiol
May 2001
Background And Purpose: Recent technological advances in MR instrumentation allow acquisition of whole-brain diffusion-weighted MR scans to be obtained with b values greater than 1,000. Our purpose was to determine whether high-b-value diffusion-weighted MR imaging improved contrast and detection of signal changes in acute and chronic brain infarction.
Methods: We prospectively evaluated the MR scans of 30 subjects with a history of possible brain infarction on a 1.
Cardiovasc Intervent Radiol
April 1998
To lower the risk of stent migration in a graft-venous anastomosis stenosis following failed percutaneous transluminal angioplasty, two Strecker stents of different caliber were placed in partly overlapping fashion across the stenosis. In contrast to other methods, stent "floating" on the venous side was eliminated by using a stent with a caliber matching the tapering postanastomotic vein and anchoring it to both the venous wall and the second stent. Using this method we believe we accomplished better fixation of the stent placed mostly in the venous side of the anastomosis, thus lowering its risk of migration.
View Article and Find Full Text PDFMed Exp Int J Exp Med
August 1969