Results 241 to 250 of about 887,704 (273)

A Case of Tandem Lesions in the Extracranial Internal Carotid Artery

Archives of Surgery, 1983
The tortuous internal carotid artery is occasionally encountered during carotid endarterectomy. While much has been written about the hemodynamic problems associated with the tortuous vessel, a second atherosclerotic plaque in the kinked portion of the artery has not been reported previously, to our knowledge.
D, Mukherjee, T, Inahara
openaire   +2 more sources

Management and Treatment of Tandem Carotid Lesions

Annals of Vascular Surgery
Tandem lesions of the proximal aortic branch vessels and carotid bifurcation are uncommon. While management strategies vary, a hybrid approach of carotid endarterectomy with retrograde common carotid artery (CCA) or innominate artery (IA) stenting has become a mainstay of treatment. The purpose of this article was to provide a review of the literature,
Akila, Pai, Krystina N, Choinski, Christopher J, Smolock   +2 more
openaire   +2 more sources

Tandem Lesions of the Internal Carotid Arteries and Their Management

1979
The significance of the combination of two or more vascular lesions (stenoses and occlusions) causing disturbances in the cerebral circulation has long been understood. Therefore, it is not surprising that, in one fifth of the patients with internal carotid occlusion a severe stenosis can be found in the contralateral internal carotid artery.
F T, Mérei, M, Bodosi, G, Gács
openaire   +2 more sources

Endarterectomy Combined with Retrograde Stenting for Tandem Lesions of the Carotid Artery

Acta Chirurgica Belgica, 2011
Due to its location in the chest wall, surgical treatment of lesions at the origin of the brachiocephalic trunk or common carotid artery (CCA) is unattractive. Complete endovascular treatment of lesions at the origin of the common carotid artery or brachiochephalic trunk combined with high-grade lesions at the carotid bifurcation carries a high risk ...
Vermeulen, T., Hendriks, J.M.H., Baeten, M., Lauwers, P., Van Schil, P.   +4 more
openaire   +3 more sources

[Endovascular treatment in cerebral artery tandem lesions].

Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences, 2016
To evaluate the effectiveness and safety of endovascular treatment in solving symptomatic cerebral artery tandem lesions.From June 2012 to February 2014, 12 cases (24 lesions) with symptomatic cerebral artery tandem lesions were accepted for the endovascular treatment.
Jin-tao, Han, Xuan, Li, Qing-yuan, He, Hai-yan, Zhao, Shan, Ye, Guo-xiang, Dong, Jing-yuan, Luan, Chang-ming, Wang   +7 more
openaire   +2 more sources

A randomized pilot study of patients with tandem carotid lesions undergoing thrombectomy

Journal of Neuroradiology, 2020
The optimal management of patients with tandem lesions (TL), or cervical internal carotid artery (c-ICA) steno-occlusive pathology and ipsilateral intracranial occlusion, who are undergoing endovascular thrombectomy (EVT) remains unknown. We sought to establish the feasibility of a trial designed to address this question.The Endovascular Acute Stroke ...
Alain Weill, Yan Deschaintre, Alexandre Poppe   +2 more
exaly   +3 more sources

Tandem Lesions and Other Products in X-Irradiated DNA Oligomers

Radiation Research, 1998
Free radicals interact with DNA bases to produce secondary radicals. The secondary radicals are reactive species and tend to interact with neighboring bases, resulting in DNA lesions with two adjacent modified bases. In this study the DNA oligomers d(CpApTpG) and d(CpGpTpA) were exposed to free radicals generated in anoxic aqueous solution by X ...
H C, Box, E E, Budzinski, J B, Dawidzik, J C, Wallace, H, Iijima   +4 more
openaire   +2 more sources

Carotid Artery Tandem Lesions Frequency and Consequences for Endarterectomy

Rivista di Neuroradiologia, 1998
We determined the frequency of tandem carotid lesions within the carotid siphon, common carotid artery and proximal intracerebral arteries as well as incidental intracranial saccular aneurysms. We also determined the consequence of a tandem lesion on the surgeon's decision-making process when a hemodynamically significant stenosis or aneurysm was ...
P.A. Rouleau, J. Huston, J. Gilbertson, R.D. Brown, F.B. Meyer, T.C. Bower   +5 more
openaire   +1 more source

Tandem Lesions Are the Major Products Resulting from a Pyrimidine Nucleobase Radical

Journal of the American Chemical Society, 2003
Nucleobase radicals (e.g., 1) are the major family of reactive intermediates formed when DNA is exposed to gamma-radiolysis. Independent generation of 1 in chemically synthesized oligonucleotides reveals that formation of this nucleobase radical under aerobic conditions results in the formation of tandem lesions approximately 65% of the time.
Marc M Greenberg, Marc M Greenberg*
exaly   +3 more sources

Theoretical study of the tandem cross-linkage lesion in DNA

Chemical Physics Letters, 2006
Abstract The intramolecular radical cross-link reactions of 8,5′-cyclo-purines and 6,5′-cyclo-pyrimidines have been studied using the DFT B3LYP formalism with 6-31+G(d,p) and 6-311++G(d,p) basis sets, and including CPCM bulk solvation effects. In aqueous solution, the largest free energy barrier is 11.1 kcal/mol for dT  → 6,5′-cycloT and the ...
Ru bo Zhang, Leif A. Eriksson
openaire   +1 more source