geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Temporal changes of aortic neck morphology in abdominal aortic aneurysms


, : Temporal changes of aortic neck morphology in abdominal aortic aneurysms. Journal of Vascular Surgery 51(5): 1111-1115

This study characterized temporal changes in the infrarenal aortic aneurysm neck in patients with small, untreated abdominal aortic aneurysms (AAA). Patients with infrarenal AAA who had contrast-enhanced computed tomography (CT) scans separated by >6 months were identified and their images reviewed. Infrarenal neck diameter and length were measured along with aneurysm diameter. Comparisons between the interval CT scans were made and analysis of factors affecting neck changes performed. Sixty patients met inclusion criteria with an imaging interval of 3.8 years (median, 3.4 years; range, 0.75-9.6 years). During the interval, there was an increase in proximal and distal neck diameters of 1.1 mm (SD, 2.2) (0.28 mm/y) and 1.0 mm (SD, 3.0) (0.26 mm/y), respectively. During the same interval, the neck length decreased by 4 mm (SD, 11) (1 mm/y). A neck length of <15 mm was present in 10 patients (17%) at the initial imaging. Four of the remaining 50 patients experienced an interval decrease in neck length to <15 mm, all of whom had initial lengths of 15 to 20 mm. Medications had no association with changes in neck morphology; however, diabetes correlated with a slower rate of neck shortening (P = .001). The natural history of the aneurysm neck is one of expansion and shortening that will not affect most patients under surveillance. Patients with marginal neck lengths (range, 15-20 mm) at the initial imaging are more likely to experience loss of neck length that may negatively affect endovascular suitability.

US$19.90

PMID: 20223622

DOI: 10.1016/j.jvs.2009.12.044


Other references

Rahuel, C.; London, J.; d'Auriol, L.; Mattei, M.G.; Tournamille, C.; Skrzynia, C.; Lebouc, Y.; Galibert, F.; Cartron, J.P., 1988: Characterization of cDNA clones for human glycophorin A. Use for gene localization and for analysis of normal of glycophorin-A-deficient (Finnish type) genomic DNA. Glycophorin A is the major membrane sialoglycoprotein of human erythrocytes and represents a typical example of a transmembrane glycoprotein. The functional role of this cell-surface component is not known but it represents a receptor for viruses,...

Li, X-li.; Jiang, S-hua.; Zhang, H-feng.; Wang, Z-zhen.; Huang, J., 2005: Association of cardiovascular risk factors and small arterial elasticity. Objective To investigate the major cardiovascular risk factors affecting small arterial elasticity and the effect of combined multiple risk factors on it. Methods Arterial elasticity indexes ( C,large artery and C-2-small artery) were measured wit...

Salisbury, A.E., 1952: Burnham Beeches, Bucks, 22 September, 1951. Journal of Conchology London, 23: 283

Trumpy, J.H., 1967: Subarachnoid hemorrhage and pregnancy. Tidsskrift for den Norske Laegeforening 87(20): 1681-1682

Piskur, Jure, 2001: Origin of the duplicated regions in the yeast genomes. The genome of Saccharomyces cerevisiae contains several duplicated regions. The recent sequencing results of several yeast species suggest that the duplicated regions found in the modern Saccharomyces species are probably the result of a single gr...

de Lange, J.J., 1965: The writing of an industrial psychological record. Nederlands Tijdschrift Voor de Psychologie en Haar Grensgebieden 20(8): 497-509

Tiefert, R., 2006: A cornucopia of creativity. School foodservice and nutrition 60(7): 56-58

Anonymous, 1954: OPHTHALMIC injuries and diseases in general practice. Medical Times 82(1): 6-19

Bailey Edward B.; McCallien William J., 1952: Ballantrae igneous problems; historical review. "A sketch is given of the growth of knowledge and interpretation regarding Ordovician igneous rocks at Ballantrae, Ayrshire. . . . New ideas are introduced as follows: the Ballantrae serpentine appears to be a submarine lava; the Bennane Head...

Thomas, K.; Stalder, K.; Suedhof, H., 1959: Excretion of aliphatic dicarboxylic acids in the urine in various pathological states, especially of the liver and kidneys. Arzneimittel-Forschung 9: 725-727