Partial aortic obstruction improves cerebral perfusion and clinical symptoms in patients with symptomatic vasospasm

Authors: Lylyk, Pedro; Vila, José; Miranda, Carlos; Ferrario, Angel; Romero, Ricardo; Cohen, José

Source: Neurological Research, Volume 27, Supplement 1, October 2005 , pp. 129-135(7)

Publisher: Maney Publishing

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Abstract:

Objective: Stroke studies in animals showed that aortic obstruction increases cerebral blood flow (CBF) and reduces infarct size. In this study we evaluate the safety and efficacy of a device providing partial and transitory aortic obstruction.

Methods: We report the results in 24 selected patients with symptomatic vasospasm by aneurysmal subarachnoid hemorrhage treated by partial and transitory aortic obstruction with a novel device (NeuroFlo?, CoAxia, MN). Aneurysms were secured by coils prior to the procedure. We studied the adverse effects related to the aorta-obstructing device, and changes in CBF and neurological outcome.

Results: Mean flow velocity increased in both middle cerebral arteries over 15%, and the score in the National Institute of Health Stroke Scale decreased ?2 point in 20 patients (83%). During the procedure, three patients developed symptoms that were controlled. At 30 days follow-up, three patients had 6 points (unrelated death), three had 3 points, six had 1 point, and 12 had 0 points, in the modified Rankin scale.

Discussion: Partial aortic obstruction was safe, the cerebral blood flow increased without inducing significant hypertension and the neurological defects improved in most of the patients. Efficacy with a better level of evidence will be determined by a randomized study.

Keywords: SYMPTOMATIC VASOSPASM; CONTROLLED AORTIC OBSTRUCTION; SUBARACHNOID HEMORRHAGE; VASOSPASM; VASOSPASM TREATMENT

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/016164105X35512

Affiliations: Department of Neurosurgery, Endovascular Neurosurgery and Interventional Neuroradiology, ENERI Clínica Médica Belgrano Buenos Aires, Argentina

Publication date: 2005-10-01

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