Publications by authors named "Karin Zachrisson"
To investigate contemporary results of percutaneous transluminal renal angioplasty (PTRA). A multicentre retrospective study analysing all patients treated with PTRA for primary symptomatic renal artery stenosis (RAS) between 2010 and 2013 at four tertiary centres. Procedures during the preceding four years were counted to evaluate for change in PTRA frequency.
View Article and Find Full Text PDFBackground: Symptomatic renal artery stenosis (RAS) is mainly treated with pharmacological blood pressure control, sometimes with percutaneous transluminal renal angioplasty (PTRA). It is unclear if PTRA benefits these patients over time.
Purpose: To determine long-term renal function, morbidity, and mortality in patients with symptomatic RAS treated with PTRA, and whether long-term outcomes are associated with angiographic restenosis.
Background Renal artery duplex ultrasound (RADUS) is an established method for diagnosis of renal artery stenosis (RAS), but there is no consensus regarding optimal RADUS criteria. Purpose To define optimal cutoff values for RADUS parameters when screening for RAS using intra-arterial trans-stenotic pressure gradient measurement (PGM) as reference. Material and Methods The renal arteries of 58 consecutive patients evaluated for renovascular hypertension were examined by RADUS and PGM.
View Article and Find Full Text PDFPurpose: To present a new endovascular technique to avoid open surgical arch reconstruction in selected patients with aneurysmal dilatation due to small chronic dissection entries in the aortic arch.
Technique: The true and the false lumen of the aortic arch are catheterized from the femoral arteries. An Amplatzer Vascular Plug II (AVP II) is advanced through the proximal entry from the false lumen side and deployed as a sealing button in the entry hole, with 1 disc in the true lumen and the remaining 2 discs in the false lumen.
Purpose: To present a new combination of imaging techniques that helps reduce the use of iodinated contrast during endovascular aneurysm repair (EVAR) procedures in patients with renal insufficiency.
Technique: Relevant anatomical structures are marked in the preprocedure computed tomography (CT) angiogram. A 3D-3D image fusion between the preprocedure CT and an intraprocedure cone-beam CT is performed in order to overlay anatomical information on live fluoroscopy.
Article Synopsis
- The study compares transcatheter arterial embolization (TAE) and open surgery for treating bleeding duodenal ulcers after unsuccessful endoscopic therapy, showing TAE as a potential alternative with lower mortality in high-risk patients.
- Analysis involved 24 patients who underwent TAE and 50 who had surgery, measuring factors like mortality, complications, and length of hospital stay across both groups.
- Results indicated no significant difference in overall complications, but TAE patients had a lower mortality rate among high-risk individuals while exhibiting a higher re-bleeding rate, suggesting further trials are needed for low-risk assessments.
Objective: To examine the diagnostic value of novel velocimetric colour duplex sonography indices in the screening of renal artery stenosis (RAS).
Methods: We performed a retrospective analysis of all consecutively studied patients at our centre with suspected RAS, and a colour duplex sonography carried out at less than 4 months (mean 34 days) before renal angiography during a 6-year period (2002-2007). A significant RAS was defined as an at least 60% stenosis on angiography or a transstenotic mean arterial pressure gradient of at least 10 mmHg or both.