| Autor: |
Clara Gregori-Pla, Rickson C. Mesquita, Christopher G. Favilla, David R. Busch, Igor Blanco, Peyman Zirak, Lisa Kobayashi Frisk, Stella Avtzi, Federica Maruccia, Giacomo Giacalone, Gianluca Cotta, Pol Camps-Renom, Michael T. Mullen, Joan Martí-Fàbregas, Luís Prats-Sánchez, Alejandro Martínez-Domeño, Scott E. Kasner, Joel H. Greenberg, Chao Zhou, Brian L. Edlow, Mary E. Putt, John A. Detre, Arjun G. Yodh, Turgut Durduran, Raquel Delgado-Mederos |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
BMC Neurology, Vol 21, Iss 1, Pp 1-12 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1471-2377 |
| DOI: |
10.1186/s12883-021-02179-8 |
| Popis: |
Abstract Background The cortical microvascular cerebral blood flow response (CBF) to different changes in head-of-bed (HOB) position has been shown to be altered in acute ischemic stroke (AIS) by diffuse correlation spectroscopy (DCS) technique. However, the relationship between these relative ΔCBF changes and associated systemic blood pressure changes has not been studied, even though blood pressure is a major driver of cerebral blood flow. Methods Transcranial DCS data from four studies measuring bilateral frontal microvascular cerebral blood flow in healthy controls (n = 15), patients with asymptomatic severe internal carotid artery stenosis (ICA, n = 27), and patients with acute ischemic stroke (AIS, n = 72) were aggregated. DCS-measured CBF was measured in response to a short head-of-bed (HOB) position manipulation protocol (supine/elevated/supine, 5 min at each position). In a sub-group (AIS, n = 26; ICA, n = 14; control, n = 15), mean arterial pressure (MAP) was measured dynamically during the protocol. Results After elevated positioning, DCS CBF returned to baseline supine values in controls (p = 0.890) but not in patients with AIS (9.6% [6.0,13.3], mean 95% CI, p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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