Valsalva maneuver procedures in the diagnosis of right-to-left shunt by contrast-enhanced transcranial doppler using agitated saline solution with blood as a contrast agent Manobra de Valsalva no diagnóstico de embolia paradoxal pelo doppler transcraniano contrastado com o uso de solução salina agitada associada a sangue como meio de contraste

Valsalva maneuver procedures in the diagnosis of right-to-left shunt by contrast-enhanced transcranial doppler using agitated saline solution with blood as a contrast agent Manobra de Valsalva no diagnóstico de embolia paradoxal pelo doppler transcraniano contrastado com o uso de solução salina agitada associada a sangue como meio de contraste

OBJECTIVE: To compare two different timings for the performance of the Valsalva maneuver (VM) using an infusion of agitated saline solution with blood as contrast agent (CA) to right-to-left shunt (RLS) screening. METHOD: 42 patients were submitted to a standardized contrast-enhanced transcranial do...

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Bibliographic Details
Main Authors: Marcos Christiano Lange, Viviane Flumignan Zétola, Elcio Juliato Piovesan, Lineu César Werneck
Format: Article
Language:English
Published: Thieme Revinter Publicações 2010-06-01
Series:Arquivos de Neuro-Psiquiatria
Subjects:
meios de contraste
embolia paradoxical
microbolhas
doppler transcraniano
ultra-som
manobra de Valsalva
contrast media
paradoxical embolism
microbubbles
transcranial doppler
ultrasonography
Valsalva maneuver
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2010000300016
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