The Role of Color Duplex Scanning in Diagnosing Diseases of the Aortic Arch Branches and Carotid Arteries

2010 ◽  
pp. 59-66
Author(s):  
Clifford T. Araki ◽  
Bruce L. Mintz ◽  
Robert W. Hobson
Keyword(s):  
Aortic Arch ◽  
Carotid Arteries ◽  
Duplex Scanning

The Role of Color Duplex Scanning in Diagnosing Diseases of the Aortic Arch Branches and Carotid Arteries

2012 ◽  
pp. 111-121
Author(s):  
Aravinda Nanjundappa ◽  
Gianluca Rigatelli ◽  
Clifford T. Araki ◽  
Ali F. AbuRahma
Keyword(s):  
Aortic Arch ◽  
Carotid Arteries ◽  
Duplex Scanning

scholarly journals Synchronous Carotid Bifurcation Endarterectomy and Retrograde Kissing Stenting of the Innominate and Left Common Carotid Artery in a Patient with a Bovine Aortic Arch

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Alessandro Robaldo ◽  
Guido Carignano ◽  
Alberto Balderi ◽  
Claudio Novali
Keyword(s):  
Carotid Artery ◽  
Aortic Arch ◽  
Common Carotid Artery ◽  
Carotid Arteries ◽  
High Risk Patient ◽  
Carotid Bifurcation ◽  
Left Common Carotid Artery ◽  
The Right ◽  
Bovine Aortic Arch ◽  
Common Carotid Arteries

Management of the symptomatic multiple stenosis of supra-aortic vessels (MSSVs) in a “bovine” aortic arch (BAA) configuration is infrequently reported. The optimal treatment choice remains debatable. A successful hybrid treatment for a proximal critical stenosis of the innominate and left common carotid artery was performed in a high-risk patient with a tandem symptomatic lesion in the right carotid bifurcation and a concentric vulnerable plaque in the bovine trunk. This case supports the feasibility, safety, and efficacy of a combined carotid bifurcation endarterectomy and retrograde kissing stenting of common carotid arteries with cerebral protection after evaluation of radiological, anatomical, and clinical parameters.

scholarly journals Influence of Lactate Accumulation on Calcium Content of Ischemic and Postischemic Brain

1989 ◽  
Vol 9 (5) ◽  
pp. 640-645 ◽  
Author(s):  
V. MacMillan
Keyword(s):  
Carotid Arteries ◽  
Calcium Content ◽  
Treated Group ◽  
Sampling Time ◽  
Early Event ◽  
Lactate Accumulation ◽  
Vertebral Arteries ◽  
Eeg Abnormalities ◽  
Tissue Calcium

In this study, the cerebral hemisphere content of calcium as well as selected parameters of oxidative metabolism and electrophysiological function were assessed in normoglycemic and hyperglycemic rats that were exposed to ischemia produced by electrocautery of the vertebral arteries and reversible occlusion of the carotid arteries. In hyperglycemic animals, 0.5 h of ischemia was associated with large accumulations of lactate (27 mmol/kg), whereas normoglycemic animals showed lesser lactate accumulation (17 mmol/kg). At this sampling time (0.5 h of ischemia), both groups of ischemic animals showed tissue calcium contents that were unchanged from preischemic control levels. In normoglycemic animals, release of the carotid clamps and recirculation for 1.5–24 h was associated with normalization of lactate, ATP and phosphocreatine, clinical behavior, and EEC During this 24 h of recirculation, cerebral calcium levels showed no changes. Hyperglycemic ischemic animals recirculated for 1.5–24 h showed a persistent lactic acidosis, depressed ATP and phosphocreatine, gross EEG abnormalities, seizures, and a high mortality rate. Again, during this 24 h period, cerebral calcium content showed no changes from preischemic control or from the matched saline-treated group. These data suggest that significant accumulation of calcium in brain tissue is not an early event in ischemic-hyperglycemic brain damage, and thus does not provide support for a role of calcium in the production of this form of ischemic damage.

Role of iPLA2 and store-operated channels in agonist-induced Ca2+ influx and constriction in cerebral, mesenteric, and carotid arteries

2008 ◽  
Vol 294 (3) ◽  
pp. H1183-H1187 ◽  
Author(s):  
Kristen M. Park ◽  
Mario Trucillo ◽  
Nicolas Serban ◽  
Richard A. Cohen ◽  
Victoria M. Bolotina
Keyword(s):  
Carotid Arteries ◽  
Cerebral Arteries ◽  
Present Evidence ◽  
Voltage Gated ◽  
Functional Inhibition ◽  
Intracellular Ca ◽  
Dependent Pathway ◽  
Secondary Activation

Store-operated channels (SOC) and store-operated Ca2+ entry are known to play a major role in agonist-induced constriction of smooth muscle cells (SMC) in conduit vessels. In microvessels the role of SOC remains uncertain, in as much as voltage-gated L-type Ca2+ (CaL2+) channels are thought to be fully responsible for agonist-induced Ca2+ influx and vasoconstriction. We present evidence that SOC and their activation via a Ca2+-independent phospholipase A2 (iPLA2)-mediated pathway play a crucial role in agonist-induced constriction of cerebral, mesenteric, and carotid arteries. Intracellular Ca2+ in SMC and intraluminal diameter were measured simultaneously in intact pressurized vessels in vitro. We demonstrated that 1) Ca2+ and contractile responses to phenylephrine (PE) in cerebral and carotid arteries were equally abolished by nimodipine (a CaL2+ inhibitor) and 2-aminoethyl diphenylborinate (an inhibitor of SOC), suggesting that SOC and CaL2+ channels may be involved in agonist-induced constriction of cerebral arteries, and 2) functional inhibition of iPLA2β totally inhibited PE-induced Ca2+ influx and constriction in cerebral, mesenteric, and carotid arteries, whereas K+-induced Ca2+ influx and vasoconstriction mediated by CaL2+ channels were not affected. Thus iPLA2-dependent activation of SOC is crucial for agonist-induced Ca2+ influx and vasoconstriction in cerebral, mesenteric, and carotid arteries. We propose that, on PE-induced depletion of Ca2+ stores, nonselective SOC are activated via an iPLA2-dependent pathway and may produce a depolarization of SMC, which could trigger a secondary activation of CaL2+ channels and lead to Ca2+ entry and vasoconstriction.

The Role of Duplex Scanning in Decision Making for Patients with Claudication

1999 ◽  
Vol 13 (6) ◽  
pp. 606-612 ◽  
Author(s):  
Ganesh Ramaswami ◽  
Aghiad Al-Kutoubi ◽  
Andrew N. Nicolaides ◽  
Surinder Dhanjil ◽  
Lionello D. Coen ◽  
...  
Keyword(s):  
Decision Making ◽  
Duplex Scanning

scholarly journals 796-1 Non Surgical Revascularization in Carotid Arteries: Role of Percutaneous Transluminal Angioplasty

1995 ◽  
Vol 25 (2) ◽  
pp. 380A
Author(s):  
Alfredo E. Rodríguez ◽  
Mario Fernández ◽  
Eduardo Mele ◽  
Ernesto Peyregne ◽  
Néstor A. Pérez Baliño
Keyword(s):  
Percutaneous Transluminal Angioplasty ◽  
Carotid Arteries ◽  
Transluminal Angioplasty ◽  
Surgical Revascularization ◽  
Percutaneous Transluminal

scholarly journals Multi-detector computed tomography (MDCT) as a diagnostic tool in assessment of thoracic aortic anomalies in pediatric patients

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Dawlat Nader Eltatawy ◽  
Fatma Anas Elsharawy ◽  
Aly Aly Elbarbary ◽  
Raghda Ghonimy Elsheikh ◽  
Manal Ezzat Badawy
Keyword(s):  
Computed Tomography ◽  
Aortic Arch ◽  
Pediatric Patients ◽  
Interrupted Aortic Arch ◽  
Diagnostic Tools ◽  
Non Invasive ◽  
Branching Patterns ◽  
Anatomic Variants ◽  
Multi Detector Computed Tomography

Abstract Background A wide variety of congenital thoracic aortic variants and pathological anomalies could be assessed recently in diagnostic and interventional radiology. Multi-detector computed tomography (MDCT) is one of the most important non-invasive diagnostic tools for their detection. The aim of the study was to evaluate role of MDCT scanning for diagnosis of thoracic aortic anatomic variants and diseases in pediatric patients. Results Thirty patients (15 male and 15 female), mean age (8.49 ± 20.29 months) were diagnosed with different thoracic aortic anomalies by MDCT then confirmed by surgical results. MDCT was more sensitive than echocardiography in detection of hypo plastic arch, vascular rings, interrupted aortic arch anomalies, and aortic coarctation. Both MDCT and echocardiography showed 100% sensitivity in their detection of TGA, TOF, and PDA. MDCT detected 6 cases of right-sided aortic arch while echo missed 2 cases. Different aortic arch branching patterns and coronary origin were better demonstrated by MDCT. Conclusion 320-Multi-detector computed tomography is a reliable tool for optimal detection of thoracic aortic anomalies and preoperative planning.

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