ACR Appropriateness Criteria ® Abdominal Aortic Aneurysm Follow-up (Without Repair)

Abdominal aortic aneurysm (AAA) is defined as aneurysmal dilation of the abdominal aorta to 3 cm or greater. A high degree of morbidity and mortality is associated with AAA rupture, and imaging surveillance plays an essential role in mitigating the risk of rupture. Aneurysm size and growth rate are factors associated with the risk of rupture, thus surveillance imaging studies must be accurate and reproducible to characterize aneurysm size. Ultrasound, CT angiography, and MR angiography provide an accurate and reproducible assessment of size, while radiographs and aortography provide limited evaluation.
Source: Journal of the American College of Radiology : JACR - Category: Radiology Authors: Tags: Appropriate use criteria Source Type: research

Related Links:

Low muscle mass is common in patients with abdominal aortic aneurysm (AAA) and is associated with reduced post-operative survival,1 frailty, and acute and chronic disease. AAA is due to connective tissue abnormalities influenced by enzymatic activity. Matrix metalloproteinases, which are implicated in this process, have also been shown to affect muscle development.2 It is unclear, however, if low muscle mass is related to the anatomy and evolution of AAA. It was hypothesised that low muscle mass, measured by total psoas area (TPA), is associated with certain features of aneurysmal disease in the abdominal aorta, which may ...
Source: European Journal of Vascular and Endovascular Surgery - Category: Surgery Authors: Tags: Research letter Source Type: research
To evaluate the 30 day mortality of elective open complex abdominal aortic aneurysm (cAAA) repair and identify factors associated with death.
Source: European Journal of Vascular and Endovascular Surgery - Category: Surgery Authors: Source Type: research
CONCLUSIONS: TSP1 contributes to aneurysm pathogenesis, at least in part, by suppressing TIMP1 expression, which subsequently enables inflammatory macrophages to infiltrate vascular tissues. PMID: 33028100 [PubMed - as supplied by publisher]
Source: Arteriosclerosis, Thrombosis and Vascular Biology - Category: Cardiology Authors: Tags: Arterioscler Thromb Vasc Biol Source Type: research
A 66-year-old man with a history of non–small cell lung cancer treated with nivolumab underwent contrast-enhanced CT and FDG PET/CT. No recurrence was demonstrated; however, soft-tissue thickening that showed delayed contrast enhancement and FDG uptake was detected around an abdominal aortic aneurysm. After discontinuation of nivolumab, the periaortic lesion disappeared within 2 months, indicating nivolumab-induced periaortitis. Immune checkpoint inhibitors such as nivolumab can cause vasculitis and periaortitis, a potentially fatal condition, as immune-related adverse events. The underlying aortic aneurysm may have ...
Source: Clinical Nuclear Medicine - Category: Nuclear Medicine Tags: Interesting Images Source Type: research
Source: CardioVascular and Interventional Radiology - Category: Radiology Source Type: research
Vascular smooth muscle cells (VSMCs), located in the media of artery, play key roles in maintaining the normal vascular physiological functions. Abnormality in VSMCs is implicated in vascular diseases (VDs), including atherosclerosis, abdominal aortic aneurysm (AAA), aortic dissection, and hypertension by regulating the process of inflammation, phenotypic switching, and extracellular matrix degradation. Sirtuins (SIRTs), a family of proteins containing seven members (from SIRT1 to SIRT7) in mammals, function as NAD+-dependent histone deacetylases and ADP-ribosyltransferases. In recent decades, great attention has been paid...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
We aimed at comprehensively evaluate the independent association of diabetes and its duration with incident abdominal aortic aneurysm (AAA) and aortic diameter.
Source: Atherosclerosis - Category: Cardiology Authors: Source Type: research
Endovascular abdominal aortic aneurysm repair (EVAR) is preferred to open surgical repair (OSR) for the treatment of abdominal aortic aneurysm (AAA) in high-risk patients. We sought to compare perioperative and long-term outcomes for EVAR in patients designated as unfit for OSR using a large national dataset.
Source: Journal of Vascular Surgery - Category: Surgery Authors: Source Type: research
In conclusion, this study suggested macrophages pyroptosis are involved in AAA and inhibition or knockout of β5i decreased macrophage pyroptosis via IκB/NFκB pathway. PMID: 33019975 [PubMed - as supplied by publisher]
Source: Biochemical and Biophysical Research communications - Category: Biochemistry Authors: Tags: Biochem Biophys Res Commun Source Type: research
Semin intervent Radiol 2020; 37: 339-345 DOI: 10.1055/s-0040-1714728Endovascular aneurysm repair (EVAR) is a common, safe, and effective method of treating abdominal aortic aneurysms. Traditionally treated via surgical cutdown over the common femoral arteries, many recent studies demonstrate percutaneous access techniques to avoid the surgical cutdown. Developing familiarity with these percutaneous techniques, including risks, complications, adjuncts, and alternative accesses, can help improve the outcomes and availability of EVAR. As these techniques become increasingly common, it is not unlikely that they can be practice...
Source: Seminars in Interventional Radiology - Category: Radiology Authors: Tags: Review Article Source Type: research
More News: Abdominal Aneurysm Repair | Abdominal Aortic Aneurysm | Angiography | Aortic Aneurysm | Gastroschisis Repair | Radiography | Radiology | Study | Ultrasound