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Aberrant anatomical variation of the vertebral artery (VA) from an internal carotid artery (ICA) is considered a rare finding. The incidence of this phenomenon can lead to patients suffering from posterior circulation neurological deficit if the ICA becomes significantly diseased. VA atypical anatomical origin is considered one of the rare pathologies, not only precipitating neurovascular incidents but equally leading to severe difficulty in VA dissection and surgical exposure, especially in carotid artery procedures.
View Article and Find Full Text PDFSyncope Induced by Dynamic Head and Shoulder Motion in the Setting of Left Subclavian Stenosis.
Neurologist
January 2025
Department of Neurology.
Introduction: Dynamic vertebral artery insufficiency is a rare vascular phenomenon characterized by insufficient flow of the posterior cerebral circulation induced by dynamic motion of the head. Prior case reports have been limited to vertebral artery occlusion by cervical osteophytes or other structural impingements.
Case Report: In this case report, we discuss the unusual case of a 61-year-old female with a history of vertigo, diplopia, nystagmus, and left subclavian stenosis admitted to the hospital for syncope elicited by a left head turn and left shoulder raise.
Background: When inserting central venous catheters, inadvertent injury of major vessels is a rare yet critical complication. Direct surgery is sometimes overly invasive. This report describes a subclavian artery injury caused by inadvertent cannulation of a dialysis catheter, successfully treated with a covered stent.
View Article and Find Full Text PDFInstitution of cardiopulmonary bypass in an awake patient for resection of isolated intrathoracic right subclavian artery aneurysm causing near total compression of the trachea.
Indian J Thorac Cardiovasc Surg
February 2025
Department of Cardiovascular & Thoracic Surgery, Seth GS Medical College & KEM Hospital, Mumbai, Maharashtra India.
The subclavian artery's intrathoracic segment is a rare peripheral artery aneurysm site. Common causes are atherosclerosis, trauma, vasculitis, and infection. Subclavian artery aneurysms have a higher propensity for rupture, thrombosis, embolization, and compression of surrounding structures, thus necessitating urgent surgical care.
View Article and Find Full Text PDFHemodynamic Evaluation of Intra-Aortic Dual-Balloon Pump Based on Fluid-Structure Interaction.
Int J Numer Method Biomed Eng
January 2025
Department of Cardiology, First Medical Center, General Hospital of Chinese people's Liberation Army, Beijing, China.
The intra-aortic balloon pump (IABP) is a widely-used mechanical circulatory support device that enhances hemodynamics in patients with heart conditions. Although the IABP is a common clinical tool, its effectiveness in enhancing outcomes for patients with acute myocardial infarction and cardiogenic shock remains disputed. This study aimed to assess the effectiveness of intra-aortic dual-balloon pump (IADBP) and its impact on aortic hemodynamics compared with an IABP.
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