MovDisordV3, France, Analysis, bibRecord, 000382

Cerebral autoregulation is preserved in multiple system atrophy: A transcranial Doppler study

Identifieur interne : 000382 ( France/Analysis ); précédent : 000381; suivant : 000383

Cerebral autoregulation is preserved in multiple system atrophy: A transcranial Doppler study

Auteurs : Anne Pavy-Le Traon [France] ; Richard L. Hughson [Canada] ; Claire Thalamas [France] ; Monique Galitsky [France] ; Nelly Fabre [France] ; Olivier Rascol [France] ; Jean-Michel Senard [France]

Source :

Movement Disorders [ 0885-3185 ] ; 2006-12.

RBID : ISTEX:0527BDD54271E1136D8FEF0B7291E9F06C3A42BD

English descriptors

KwdEn :
- Aged, Blood Flow Velocity (physiology), Blood Pressure (physiology), Cerebrovascular Circulation (physiology), Female, Heart Rate (physiology), Homeostasis (physiology), Humans, Male, Middle Aged, Middle Cerebral Artery (physiopathology), Middle Cerebral Artery (ultrasonography), Multiple System Atrophy (physiopathology), Multiple System Atrophy (ultrasonography), Nonlinear Dynamics, Spectrum Analysis, Supine Position (physiology), Ultrasonography, Doppler, Transcranial, autonomic failure, cerebral autoregulation, cross‐spectral analysis, multiple system atrophy, orthostatic hypotension, transcranial Doppler.
MESH :
- physiology : Blood Flow Velocity, Blood Pressure, Cerebrovascular Circulation, Heart Rate, Homeostasis, Supine Position.
- physiopathology : Middle Cerebral Artery, Multiple System Atrophy.
- ultrasonography : Middle Cerebral Artery, Multiple System Atrophy.
- Aged, Female, Humans, Male, Middle Aged, Nonlinear Dynamics, Spectrum Analysis, Ultrasonography, Doppler, Transcranial.

Abstract

Patients with multiple system atrophy (MSA) present large changes in blood pressure (BP) due to autonomic disturbances. We analyzed how this change may influence dynamic cerebral autoregulation (DCA). Simultaneous recordings of arterial BP (Finapres) and middle cerebral artery (MCA) blood flow velocity (BFV) (transcranial Doppler) were performed in 10 patients with MSA (61 ± 12 yr of age) and 12 healthy volunteers (61 ± 11 yr of age): cerebral BFV response to oscillations in mean BP was studied in the supine position by cross‐spectral analysis of mean BP and mean MCA BFV. The DCA was also studied during the decrease in BP the first seconds when standing up from a sitting position by the assessment of the cerebrovascular resistance index (CR; mean BP/mean MCA BFV ratio). The MCA BFV/BP cross‐spectral analysis showed a phase for the mid‐frequency band (0.07–0.2 Hz) significantly larger in MSA, suggesting more active autoregulation in response to larger changes in BP. Changes in CR reflecting the rate of autoregulation, when standing did not differ between the two groups. These data suggest that dynamic cerebral autoregulation is preserved in MSA. © 2006 Movement Disorder Society

Url:

https://api.istex.fr/document/0527BDD54271E1136D8FEF0B7291E9F06C3A42BD/fulltext/pdf

DOI: 10.1002/mds.21130

Affiliations:

Links to Exploration step

ISTEX:0527BDD54271E1136D8FEF0B7291E9F06C3A42BD

Le document en format XML

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<term>Female</term>
<term>Heart Rate (physiology)</term>
<term>Homeostasis (physiology)</term>
<term>Humans</term>
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<term>Middle Aged</term>
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<term>Ultrasonography, Doppler, Transcranial</term>
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<term>multiple system atrophy</term>
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<term>transcranial Doppler</term>
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<front><div type="abstract" xml:lang="en">Patients with multiple system atrophy (MSA) present large changes in blood pressure (BP) due to autonomic disturbances. We analyzed how this change may influence dynamic cerebral autoregulation (DCA). Simultaneous recordings of arterial BP (Finapres) and middle cerebral artery (MCA) blood flow velocity (BFV) (transcranial Doppler) were performed in 10 patients with MSA (61 ± 12 yr of age) and 12 healthy volunteers (61 ± 11 yr of age): cerebral BFV response to oscillations in mean BP was studied in the supine position by cross‐spectral analysis of mean BP and mean MCA BFV. The DCA was also studied during the decrease in BP the first seconds when standing up from a sitting position by the assessment of the cerebrovascular resistance index (CR; mean BP/mean MCA BFV ratio). The MCA BFV/BP cross‐spectral analysis showed a phase for the mid‐frequency band (0.07–0.2 Hz) significantly larger in MSA, suggesting more active autoregulation in response to larger changes in BP. Changes in CR reflecting the rate of autoregulation, when standing did not differ between the two groups. These data suggest that dynamic cerebral autoregulation is preserved in MSA. © 2006 Movement Disorder Society</div>
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Movement Disorders (revue)

Cerebral autoregulation is preserved in multiple system atrophy: A transcranial Doppler study

Cerebral autoregulation is preserved in multiple system atrophy: A transcranial Doppler study

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

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Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

	Movement Disorders (revue)
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