Multiple Aneurysm Formation as a Complication of Interventive Angiography

Radiology ◽  
1978 ◽  
Vol 126 (1) ◽  
pp. 91-92 ◽  
Author(s):  
Raymond Balsys ◽  
Robert Cross
Keyword(s):  
Multiple Aneurysm ◽  
Aneurysm Formation

scholarly journals Multiple Aneurysm Formation in a Young Man

1963 ◽  
Vol 158 (6) ◽  
pp. 1043-1046 ◽  
Author(s):  
WALTER J. HENRY
Keyword(s):  
Multiple Aneurysm ◽  
Aneurysm Formation

Relationships between vertebral artery diameter and dissecting aneurysm formation

2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S148-S148
Author(s):  
Yoko Yokoyama ◽  
Shigeru Fujimoto ◽  
Kazunori Toyoda ◽  
Tooru Inoue ◽  
Juro Jinnouchi ◽  
...  
Keyword(s):  
Vertebral Artery ◽  
Dissecting Aneurysm ◽  
Aneurysm Formation

Proximal Aortic Aneurysm Formation - No, it's not all about the Matrixmetalloproteinases!

2015 ◽  
Vol 63 (S 01) ◽  
Author(s):  
J. Haunschild ◽  
S. Steinbach ◽  
S. Lehmann ◽  
M. Misfeld ◽  
S. von Salisch ◽  
...  
Keyword(s):  
Aortic Aneurysm ◽  
Aneurysm Formation

Operated Coarctation: Early Onset of Restenoses Following GoreTex-Plasties, Late Aneurysm Formation after Dacron Patches. 45 Years´ Experience with 496 Patients

2015 ◽  
Vol 63 (S 03) ◽  
Author(s):  
D. Bobylev ◽  
D. Böthig ◽  
A. Ostermann ◽  
H. Bertram ◽  
M. Westhoff-Bleck ◽  
...  
Keyword(s):  
Early Onset ◽  
Aneurysm Formation

Computed Tomography Angiography (CTA) Evaluation of Spontaneous Subarachnoid Hemorrhage

2020 ◽  
Vol 6 (2) ◽  
pp. 78-81
Author(s):  
Md Tauhidul Islam Chowdhury ◽  
Mohammad Shah Jahirul Hoque Chowdhury ◽  
Mohammad Sadekur Rahman Sarkar ◽  
KM Ahasan Ahmed ◽  
Md Nazmul Kabir ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Subarachnoid Hemorrhage ◽  
Computed Tomography Angiography ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Multiple Aneurysm ◽  
Traumatic Subarachnoid Hemorrhage ◽  
One Year ◽  
Spontaneous Subarachnoid Hemorrhage

Background: In evaluation of non-traumatic subarachnoid hemorrhage CT angiography (CTA) has 97-98% sensitivity and near 100% specificity. Objective: This study was conducted to evaluate the CTA findings of CT positive non traumatic subarachnoid hemorrhage. Methodology: This is an observational cross sectional study performed in Neurology department of National Institute of Neurosciences and Hospital, Dhaka over one year period (January 2019 to December 2019). Total 87 CT positive subarachnoid hemorrhage cases were purposively included in this study. All CT positive patients underwent CTA of Cerebral vessels for further evaluation. The angiography were evaluated by competent neuro-radiologists blinded about the study. Result: Among 87 patients, 40.2% were male and 59.8% were female. The average age was 53.33±11.1 years. Among the studied patient the source of bleeding was found 78.16% aneurysmal and 21.84% non-aneurysmal. 85.30% patients had single aneurysm and 14.70% had multiple aneurysm. The highest number of patient had Acom aneurysm (41.17%) followed by MCA (22.05%), ICA (13.23%), ACA (7.35%) and vertebral artery (1.14%) in order of frequency. Among the multiple aneurysm group most of the patients had combination of Acom, MCA and ICA aneurysm. Conclusion: From this study, we can conclude that CTA can be used as the primary diagnostic tool in evaluation of spontaneous SAH. Journal of National Institute of Neurosciences Bangladesh, 2020;6(2): 78-81

Aneurysm Formation of Cervical Aortic Arch Combined with Subaortic Left Innominate Vein: Case Report

2004 ◽  
Vol 50 (1) ◽  
pp. 27
Author(s):  
Young Min Han ◽  
Ja Hong Gu ◽  
Gong Yong Jin ◽  
Hyo Sung Kwak ◽  
Gyung Ho Chung ◽  
...  
Keyword(s):  
Case Report ◽  
Aortic Arch ◽  
Innominate Vein ◽  
Aneurysm Formation ◽  
Left Innominate Vein

Epigenetic Profiling Identifies Novel Genes for Ascending Aortic Aneurysm Formation with Bicuspid Aortic Valves

2015 ◽  
Vol 18 (4) ◽  
pp. 134 ◽  
Author(s):  
Asad A Shah
Keyword(s):  
Gene Expression ◽  
Aortic Aneurysm ◽  
Methylation Status ◽  
Aortic Aneurysms ◽  
Aortic Valves ◽  
Ascending Aortic Aneurysm ◽  
Novel Genes ◽  
Aneurysm Formation ◽  
Aortic Replacement ◽  
Bicuspid Aortic Valves

<p><strong>Background:  </strong>Bicuspid aortic valves predispose to ascending aortic aneurysms, but the mechanisms underlying this aortopathy remain incompletely characterized.  We sought to identify epigenetic pathways predisposing to aneurysm formation in bicuspid patients.</p><p><strong>Methods:  </strong>Ascending aortic aneurysm tissue samples were collected at the time of aortic replacement in subjects with bicuspid and trileaflet aortic valves.  Genome-wide DNA methylation status was determined on DNA from tissue using the Illumina 450K methylation chip, and gene expression was profiled on the same samples using Illumina Whole-Genome DASL arrays.  Gene methylation and expression were compared between bicuspid and trileaflet individuals using an unadjusted Wilcoxon rank sum test.  </p><p><strong>Results:  </strong>Twenty-seven probes in 9 genes showed significant differential methylation and expression (P&lt;5.5x10<sup>-4</sup>).  The top gene was protein tyrosine phosphatase, non-receptor type 22 (<em>PTPN22</em>), which was hypermethylated (delta beta range: +15.4 to +16.0%) and underexpressed (log 2 gene expression intensity: bicuspid 5.1 vs. trileaflet 7.9, P=2x10<sup>-5</sup>) in bicuspid patients, as compared to tricuspid patients.  Numerous genes involved in cardiovascular development were also differentially methylated, but not differentially expressed, including <em>ACTA2</em> (4 probes, delta beta range:  -10.0 to -22.9%), which when mutated causes the syndrome of familial thoracic aortic aneurysms and dissections</p><p><strong>Conclusions:  </strong>Using an integrated, unbiased genomic approach, we have identified novel genes associated with ascending aortic aneurysms in patients with bicuspid aortic valves, modulated through epigenetic mechanisms.  The top gene was <em>PTPN22</em>, which is involved in T-cell receptor signaling and associated with various immune disorders.  These differences highlight novel potential mechanisms of aneurysm development in the bicuspid population.</p>

The Progression of an Infundibulum to Aneurysm Formation and Rupture: Case Report and Literature Review

Neurosurgery ◽  
1998 ◽  
Vol 43 (6) ◽  
pp. 1445-1448 ◽  
Author(s):  
Laurence A.G. Marshman ◽  
Peter J. Ward ◽  
Paul H. Walter ◽  
Robert S. Dossetor
Keyword(s):  
Case Report ◽  
Literature Review ◽  
Aneurysm Formation

scholarly journals Wall shear stress gradient is independently associated with middle cerebral artery aneurysm development: a case-control CFD patient-specific study based on 77 patients

BMC Neurology ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mikołaj Zimny ◽  
Edyta Kawlewska ◽  
Anna Hebda ◽  
Wojciech Wolański ◽  
Piotr Ładziński ◽  
...  
Keyword(s):  
Shear Stress ◽  
Wall Shear Stress ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Case Control ◽  
Independent Effect ◽  
Patient Specific ◽  
Aneurysm Formation ◽  
Wall Shear ◽  
Mca Aneurysm

Abstract Background Previously published computational fluid dynamics (CFD) studies regarding intracranial aneurysm (IA) formation present conflicting results. Our study analysed the involvement of the combination of high wall shear stress (WSS) and a positive WSS gradient (WSSG) in IA formation. Methods We designed a case-control study with a selection of 38 patients with an unruptured middle cerebral artery (MCA) aneurysm and 39 non-aneurysmal controls to determine the involvement of WSS, oscillatory shear index (OSI), the WSSG and its absolute value (absWSSG) in aneurysm formation based on patient-specific CFD simulations using velocity profiles obtained from transcranial colour-coded sonography. Results Among the analysed parameters, only the WSSG had significantly higher values compared to the controls (11.05 vs − 14.76 [Pa/mm], P = 0.020). The WSS, absWSSG and OSI values were not significantly different between the analysed groups. Logistic regression analysis identified WSS and WSSG as significant co-predictors for MCA aneurysm formation, but only the WSSG turned out to be a significant independent prognosticator (OR: 1.009; 95% CI: 1.001–1.017; P = 0.025). Significantly more patients (23/38) in the case group had haemodynamic regions of high WSS combined with a positive WSSG near the bifurcation apex, while in the control group, high WSS was usually accompanied by a negative WSSG (14/39). From the analysis of the ROC curve for WSSG, the area under the curve (AUC) was 0.654, with the optimal cut-off value −0.37 Pa/mm. The largest AUC was recognised for combined WSS and WSSG (AUC = 0.671). Our data confirmed that aneurysms tend to form near the bifurcation apices in regions of high WSS values accompanied by positive WSSG. Conclusions The development of IAs is determined by an independent effect of haemodynamic factors. High WSS impacts MCA aneurysm formation, while a positive WSSG mainly promotes this process.

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