Background: This study aimed to investigate the influence of abdominal aortic calcification on the distal extent, blood supply, and mid-term outcomes of acute aortic dissection (AAD).
Methods: This single-centre retrospective study was conducted from August 2014 to May 2021. The aortic calcification index was used to evaluate abdominal aortic calcification. The standardized method provided by the Society for Vascular Surgery was used to evaluate the distal extent of AAD. Patients were divided into 3 groups as per the degree of calcification: no calcification (NC), low calcification (LC), and high calcification (HC).
Results: In a cohort of 723 patients, abdominal aortic calcification was present in 424 (58.6%) patients. The prevalence of coronary heart disease increased with the degree of calcification (NC versus LC versus HC: 8.4% vs. 9.5% vs. 19.3%, P < 0.001). The aortic calcification index of the distal extent at zone 9 was higher than that of the distal extent exceeding zone 9 (P = 0.001). The proportions of the NC, LC, and HC groups with distal extents exceeding zone 9 were 65.9% vs. 56.2% vs. 37.7%, P < 0.001. In a multivariate logistics analysis, the calcification grade was a protective factor of distal extents exceeding zone 9 (P < 0.001, odds ratio [OR] = 0.592). Hypertension (P = 0.019, OR = 1.559) and D-dimer (P < 0.001, OR = 1.045) were risk factors. There was a higher proportion of branch-vessels on the abdominal aorta supplied by the true lumen in the calcification group (NC versus LC versus HC: 27.8% vs. 43.8% vs. 51.1%, P < 0.001). There were no significant differences in the mid-term outcomes among the groups.
Conclusions: Abdominal aortic calcification could limit the distal extent in patients with AAD and increase the proportion of branch-vessels on the abdominal aorta supplied by the true lumen.
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http://dx.doi.org/10.1016/j.avsg.2022.05.006 | DOI Listing |
Catheter Cardiovasc Interv
December 2024
Department of Surgery, University of North Dakota School of Medicine and Health Sciences, Grand Forks, North Dakota, United States.
Background: Despite advancements in valve implantation devices, vascular access complications (VAC) remain a significant cause of morbidity and mortality for those undergoing transcatheter aortic valve replacement (TAVR). We describe pre-operative imaging analysis of the aortoiliac and femoral arterial beds using the TransAtlantic intersociety consensus (TASC) score, ilio-femoral tortuosity, and procedural characteristics to identify anatomic risk factors predictive of VAC in TAVR.
Methods: Consecutive patients undergoing TAVR from 2012 to 2022 at a single North Dakota hospital were retrospectively reviewed.
Int J Surg
December 2024
Department of Emergency Medicine, Qilu Hospital of Shandong University, Jinan, China.
Background: Interleaflet haemorrhage (IH) plays a well-recognized detrimental role in calcified aortic valve disease (CAVD). However, IH-induced fibro-osteogenic responses in valvular interstitial cells (VICs) appear to be triggered under specific pathological conditions. Iron deficiency (ID), a common co-morbidity in CAVD, may influence these responses.
View Article and Find Full Text PDFJ Cardiovasc Dev Dis
November 2024
Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ 85054, USA.
Bioprosthetic aortic valve degeneration (BAVD) is a significant clinical concern following both transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR). The increasing use of bioprosthetic valves in aortic valve replacement in younger patients and the subsequent rise in cases of BAVD are acknowledged in this review which aims to provide a comprehensive overview of the incidence, diagnosis, predictors, and management of BAVD. Based on a thorough review of the existing literature, this article provides an updated overview of the biological mechanisms underlying valve degeneration, including calcification, structural deterioration, and inflammatory processes and addresses the various risk factors contributing to BAVD, such as patient demographics, comorbidities, and procedural variables.
View Article and Find Full Text PDFBackground: Aortic valve stenosis (AVS) is a progressive disease characterized by fibrosis, inflammation, calcification, and stiffening of the aortic valve leaflets, leading to disrupted blood flow. If untreated, AVS can progress to heart failure and death within 2 to 5 years. Uncovering the molecular mechanisms behind AVS is key for developing effective noninvasive therapies.
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