A controlled Valsalva Maneuver causes neither Diffusion-Positive Hippocampal Lesions nor Clinical Symptoms after Transient Global Amnesia.
Eur Neurol
; 82(4-6): 113-115, 2019.
Article
en En
| MEDLINE
| ID: mdl-31846963
ABSTRACT
Valsalva maneuver (VM) precedes frequently transient global amnesia (TGA) and up to 84% of the patients with TGA present hippocampal diffusion-weighted imaging-positive (DWI+) lesions on brain magnetic resonance imaging (MRI). We studied 20 patients with TGA and hippocampal DWI+ lesions. Median age (range) of the patients was 67 (57-80) years and 55% were women. TGA had been preceded by a VM-associated activity in 14 patients (70%), and brain MRI had been performed at a median (range) of 47.5 (42-79) h after TGA. These patients underwent a second MRI after a controlled-induced VM at least 3 months after TGA. This MRI was performed at a median (range) of 46.8 (41-138) h after the controlled-induced VM. None of the patients who reproduced TGA symptoms presented new DWI+ lesions on the second MRI. In patients with a previous episode of TGA, VM cannot elicit TGA in isolation and the interplay of other simultaneous factors is needed.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Maniobra de Valsalva
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Amnesia Global Transitoria
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Hipocampo
Tipo de estudio:
Diagnostic_studies
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Etiology_studies
Límite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Eur Neurol
Año:
2019
Tipo del documento:
Article