Effect of Hemoglobin and Blood Glucose Levels on CT Perfusion Ischemic Core Estimation: A Post Hoc Analysis of the ESCAPE-NA1 Trial.


Journal

Neurology
ISSN: 1526-632X
Titre abrégé: Neurology
Pays: United States
ID NLM: 0401060

Informations de publication

Date de publication:
26 Nov 2024
Historique:
medline: 22 10 2024
pubmed: 21 10 2024
entrez: 21 10 2024
Statut: ppublish

Résumé

CT perfusion (CTP) maps can estimate the ischemic core in acute ischemic stroke based on distinctive cerebral blood flow thresholds. However, metabolic factors beyond perfusion influence the tissue tolerance to ischemia and the infarct growth rate. Underestimating the ischemic core volume (ICV) might result in overestimating the salvageable cerebral tissue and, consequently, overestimating the potential clinical benefits of reperfusion therapies. We aim to evaluate whether baseline hemoglobin and blood glucose levels influence the accuracy of baseline CTP ICV estimations. Large vessel occlusion stroke patients investigated with baseline CTP undergoing thrombectomy with near-complete reperfusion and without parenchymal hemorrhage from the ESCAPE-NA1 trial were included. Patients were subdivided into anemic (hemoglobin <130 g/L for men and <120 g/L for women) and nonanemic groups, and hyperglycemic (blood glucose level >7 mmol/L) and normoglycemic groups. Ischemic core underestimated volume (ICuV) was calculated: final infarct volume minus CTP-based ICV. The primary outcome was the presence of "perfusion scotoma" defined as ICuV ≥10 mL. Presence of "perfusion scotoma" and median ICuV were compared between anemic vs nonanemic and hyperglycemic vs normoglycemic patients using nonparametric tests and multivariable binary logistic regression with adjustment for baseline variables. One hundred sixty-two of 1,105 (15%) patients were included (median age 70.5 [interquartile range (IQR) 61-80.4], 50.6% women). The median ICuV was 7.26 mL (IQR 0-25.63). Seventy-eight (48%) patients demonstrated perfusion scotoma. Forty-two (25.7%) patients were anemic, and 65 (40.1%) were hyperglycemic. In univariable analysis, the hyperglycemic group had a higher prevalence of perfusion scotoma (65% [n = 40] vs 39% [n = 38], In our study, CTP-based ischemic core underestimation was common and associated with higher baseline blood glucose levels. Individual metabolic factors beyond perfusion that critically influence the infarct growth rate should be considered when interpreting baseline CTP estimations of ischemic core.

Sections du résumé

BACKGROUND AND OBJECTIVES OBJECTIVE
CT perfusion (CTP) maps can estimate the ischemic core in acute ischemic stroke based on distinctive cerebral blood flow thresholds. However, metabolic factors beyond perfusion influence the tissue tolerance to ischemia and the infarct growth rate. Underestimating the ischemic core volume (ICV) might result in overestimating the salvageable cerebral tissue and, consequently, overestimating the potential clinical benefits of reperfusion therapies. We aim to evaluate whether baseline hemoglobin and blood glucose levels influence the accuracy of baseline CTP ICV estimations.
METHODS METHODS
Large vessel occlusion stroke patients investigated with baseline CTP undergoing thrombectomy with near-complete reperfusion and without parenchymal hemorrhage from the ESCAPE-NA1 trial were included. Patients were subdivided into anemic (hemoglobin <130 g/L for men and <120 g/L for women) and nonanemic groups, and hyperglycemic (blood glucose level >7 mmol/L) and normoglycemic groups. Ischemic core underestimated volume (ICuV) was calculated: final infarct volume minus CTP-based ICV. The primary outcome was the presence of "perfusion scotoma" defined as ICuV ≥10 mL. Presence of "perfusion scotoma" and median ICuV were compared between anemic vs nonanemic and hyperglycemic vs normoglycemic patients using nonparametric tests and multivariable binary logistic regression with adjustment for baseline variables.
RESULTS RESULTS
One hundred sixty-two of 1,105 (15%) patients were included (median age 70.5 [interquartile range (IQR) 61-80.4], 50.6% women). The median ICuV was 7.26 mL (IQR 0-25.63). Seventy-eight (48%) patients demonstrated perfusion scotoma. Forty-two (25.7%) patients were anemic, and 65 (40.1%) were hyperglycemic. In univariable analysis, the hyperglycemic group had a higher prevalence of perfusion scotoma (65% [n = 40] vs 39% [n = 38],
DISCUSSION CONCLUSIONS
In our study, CTP-based ischemic core underestimation was common and associated with higher baseline blood glucose levels. Individual metabolic factors beyond perfusion that critically influence the infarct growth rate should be considered when interpreting baseline CTP estimations of ischemic core.

Identifiants

pubmed: 39432874
doi: 10.1212/WNL.0000000000209939
doi:

Substances chimiques

Blood Glucose 0
Hemoglobins 0

Types de publication

Journal Article Randomized Controlled Trial

Langues

eng

Sous-ensembles de citation

IM

Pagination

e209939

Auteurs

Umberto Pensato (U)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

Salome Bosshart (S)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

Alexander Stebner (A)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

Axel Rohr (A)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

Timothy J Kleinig (TJ)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

Rishi Gupta (R)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

Götz Thomalla (G)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

Ji Hoe Heo (JH)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

Mayank Goyal (M)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

Andrew M Demchuk (AM)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

Michael D Hill (MD)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

Johanna M Ospel (JM)

From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.
From the IRCCS Humanitas Research Hospital (U.P.); Department of Biomedical Sciences (U.P.), Humanitas University, Milan, Italy; Calgary Stroke Program (U.P., S.B., A.S., A.M.D., M.D.H.), Departments of Clinical Neurosciences and Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada; Institute of Radiology (A.S.), Cantonal Hospital Münsterlingen, Switzerland; University of British Columbia (A.R.), Vancouver, Canada; Royal Adelaide Hospital (T.J.K.), Adelaide, Australia; Wellstar Health Systems (R.G.), Kennestone Hospital, Marietta, GA; Department of Neurology (G.T.) and Department of Neuroradiology (G.T.), University Medical Center Hamburg-Eppendorf, Germany; University College of Medicine (J.H.H.), Seoul, South Korea; and Department of Radiology (M.G., M.D.H., J.M.O.), Cumming School of Medicine, University of Calgary, Alberta, Canada.

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