Microvascular cerebral blood flow response to intrathecal nicardipine is associated with delayed cerebral ischemia

One of the common complications of non-traumatic subarachnoid hemorrhage (SAH) is delayed cerebral ischemia (DCI). Intrathecal (IT) administration of nicardipine, a calcium channel blocker (CCB), upon detection of large-artery cerebral vasospasm holds promise as a treatment that reduces the incidenc...

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Main Authors: Eashani Sathialingam, Kyle R. Cowdrick, Amanda Y. Liew, Zhou Fang, Seung Yup Lee, Courtney E. McCracken, Feras Akbik, Owen B. Samuels, Prem Kandiah, Ofer Sadan, Erin M. Buckley
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-03-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2023.1052232/full
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author Eashani Sathialingam
Kyle R. Cowdrick
Amanda Y. Liew
Zhou Fang
Seung Yup Lee
Seung Yup Lee
Courtney E. McCracken
Feras Akbik
Owen B. Samuels
Prem Kandiah
Ofer Sadan
Erin M. Buckley
Erin M. Buckley
Erin M. Buckley
author_facet Eashani Sathialingam
Kyle R. Cowdrick
Amanda Y. Liew
Zhou Fang
Seung Yup Lee
Seung Yup Lee
Courtney E. McCracken
Feras Akbik
Owen B. Samuels
Prem Kandiah
Ofer Sadan
Erin M. Buckley
Erin M. Buckley
Erin M. Buckley
author_sort Eashani Sathialingam
collection DOAJ
description One of the common complications of non-traumatic subarachnoid hemorrhage (SAH) is delayed cerebral ischemia (DCI). Intrathecal (IT) administration of nicardipine, a calcium channel blocker (CCB), upon detection of large-artery cerebral vasospasm holds promise as a treatment that reduces the incidence of DCI. In this observational study, we prospectively employed a non-invasive optical modality called diffuse correlation spectroscopy (DCS) to quantify the acute microvascular cerebral blood flow (CBF) response to IT nicardipine (up to 90 min) in 20 patients with medium-high grade non-traumatic SAH. On average, CBF increased significantly with time post-administration. However, the CBF response was heterogeneous across subjects. A latent class mixture model was able to classify 19 out of 20 patients into two distinct classes of CBF response: patients in Class 1 (n = 6) showed no significant change in CBF, while patients in Class 2 (n = 13) showed a pronounced increase in CBF in response to nicardipine. The incidence of DCI was 5 out of 6 in Class 1 and 1 out of 13 in Class 2 (p < 0.001). These results suggest that the acute (<90 min) DCS-measured CBF response to IT nicardipine is associated with intermediate-term (up to 3 weeks) development of DCI.
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spelling doaj.art-e564a3507447443fa4b083e4347ab4502023-03-17T05:50:32ZengFrontiers Media S.A.Frontiers in Neurology1664-22952023-03-011410.3389/fneur.2023.10522321052232Microvascular cerebral blood flow response to intrathecal nicardipine is associated with delayed cerebral ischemiaEashani Sathialingam0Kyle R. Cowdrick1Amanda Y. Liew2Zhou Fang3Seung Yup Lee4Seung Yup Lee5Courtney E. McCracken6Feras Akbik7Owen B. Samuels8Prem Kandiah9Ofer Sadan10Erin M. Buckley11Erin M. Buckley12Erin M. Buckley13Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Emory University, Atlanta, GA, United StatesWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Emory University, Atlanta, GA, United StatesWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Emory University, Atlanta, GA, United StatesWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Emory University, Atlanta, GA, United StatesWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Emory University, Atlanta, GA, United StatesDepartment of Electrical and Computer Engineering, Kennesaw State University, Marietta, GA, United StatesCenter for Research and Evaluation, Kaiser Permanente Georgia, Atlanta, GA, United StatesDivision of Neurocritical Care, Department of Neurology and Neurosurgery, Emory University School of Medicine, Atlanta, GA, United StatesDivision of Neurocritical Care, Department of Neurology and Neurosurgery, Emory University School of Medicine, Atlanta, GA, United StatesDivision of Neurocritical Care, Department of Neurology and Neurosurgery, Emory University School of Medicine, Atlanta, GA, United StatesDivision of Neurocritical Care, Department of Neurology and Neurosurgery, Emory University School of Medicine, Atlanta, GA, United StatesWallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Emory University, Atlanta, GA, United StatesDepartment of Pediatrics, School of Medicine, Emory University, Atlanta, GA, United StatesChildren's Research Scholar, Children's Healthcare of Atlanta, Atlanta, GA, United StatesOne of the common complications of non-traumatic subarachnoid hemorrhage (SAH) is delayed cerebral ischemia (DCI). Intrathecal (IT) administration of nicardipine, a calcium channel blocker (CCB), upon detection of large-artery cerebral vasospasm holds promise as a treatment that reduces the incidence of DCI. In this observational study, we prospectively employed a non-invasive optical modality called diffuse correlation spectroscopy (DCS) to quantify the acute microvascular cerebral blood flow (CBF) response to IT nicardipine (up to 90 min) in 20 patients with medium-high grade non-traumatic SAH. On average, CBF increased significantly with time post-administration. However, the CBF response was heterogeneous across subjects. A latent class mixture model was able to classify 19 out of 20 patients into two distinct classes of CBF response: patients in Class 1 (n = 6) showed no significant change in CBF, while patients in Class 2 (n = 13) showed a pronounced increase in CBF in response to nicardipine. The incidence of DCI was 5 out of 6 in Class 1 and 1 out of 13 in Class 2 (p < 0.001). These results suggest that the acute (<90 min) DCS-measured CBF response to IT nicardipine is associated with intermediate-term (up to 3 weeks) development of DCI.https://www.frontiersin.org/articles/10.3389/fneur.2023.1052232/fullvasospasmdiffuse correlation spectroscopynicardipineblood flowsubarachnoid hemorrhage
spellingShingle Eashani Sathialingam
Kyle R. Cowdrick
Amanda Y. Liew
Zhou Fang
Seung Yup Lee
Seung Yup Lee
Courtney E. McCracken
Feras Akbik
Owen B. Samuels
Prem Kandiah
Ofer Sadan
Erin M. Buckley
Erin M. Buckley
Erin M. Buckley
Microvascular cerebral blood flow response to intrathecal nicardipine is associated with delayed cerebral ischemia
Frontiers in Neurology
vasospasm
diffuse correlation spectroscopy
nicardipine
blood flow
subarachnoid hemorrhage
title Microvascular cerebral blood flow response to intrathecal nicardipine is associated with delayed cerebral ischemia
title_full Microvascular cerebral blood flow response to intrathecal nicardipine is associated with delayed cerebral ischemia
title_fullStr Microvascular cerebral blood flow response to intrathecal nicardipine is associated with delayed cerebral ischemia
title_full_unstemmed Microvascular cerebral blood flow response to intrathecal nicardipine is associated with delayed cerebral ischemia
title_short Microvascular cerebral blood flow response to intrathecal nicardipine is associated with delayed cerebral ischemia
title_sort microvascular cerebral blood flow response to intrathecal nicardipine is associated with delayed cerebral ischemia
topic vasospasm
diffuse correlation spectroscopy
nicardipine
blood flow
subarachnoid hemorrhage
url https://www.frontiersin.org/articles/10.3389/fneur.2023.1052232/full
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