Smartphone pupillometry predicts ischemic penumbra in acute ischemic stroke.

Autor: Maxin AJ; Department of Neurological Surgery, University of Washington, Seattle, WA, USA; School of Medicine, Creighton University, Omaha, NE, USA. Electronic address: AnthonyMaxin@creighton.edu., Gulek BG; Department of Neurological Surgery, University of Washington, Seattle, WA, USA. Electronic address: gulekb@uw.edu., Litz H; School of Medicine, Creighton University, Omaha, NE, USA. Electronic address: HunterLitz@creighton.edu., Brandt Z; School of Medicine, Creighton University, Omaha, NE, USA. Electronic address: ZacharyBrandt@creighton.edu., Winston GM; Department of Neurological Surgery, Weill Cornell Medicine, New York, NY, USA. Electronic address: gmw2002@nyp.org., McGrath LB; Department of Neurological Surgery, Weill Cornell Medicine, New York, NY, USA. Electronic address: lbm9009@med.cornell.edu., Abecassis IJ; Department of Neurosurgery, University of Louisville, Louisville, KY, USA. Electronic address: jabes87@gmail.com., Levitt MR; Department of Neurological Surgery, University of Washington, Seattle, WA, USA; Departments of Radiology, Mechanical Engineering, and Stroke & Applied Neuroscience Center, University of Washington, Seattle, WA, USA. Electronic address: mlevitt@uw.edu.
Jazyk: angličtina
Zdroj: Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association [J Stroke Cerebrovasc Dis] 2024 Nov 17; Vol. 34 (1), pp. 108143. Date of Electronic Publication: 2024 Nov 17.
DOI: 10.1016/j.jstrokecerebrovasdis.2024.108143
Abstrakt: Background: Recent advances in time-sensitive treatment methods for large vessel occlusion (LVO), including medical and mechanical thrombectomy, have increased the importance of rapid recognition of acute ischemic stroke. The pupillary light reflex (PLR) is a biomarker for neurological status. We studied a portable smartphone-based quantitative pupillometry application that has been developed to quantify PLR metrics without requiring external hardware or extensive training to operate. We hypothesized that the PLR curve morphological metrics produced by the smartphone pupillometer could be used to predict the National Institutes of Health Stroke Scale (NIHSS) and CT Perfusion (CTP) core to penumbra volume ratio.
Materials and Methods: The PLR in patients with LVO in the emergency department of a comprehensive stroke center was recorded using a smartphone quantitative pupillometry application. Subjects with LVO were enrolled prior to thrombectomy or medical intervention. Collected data included volumetric measures of ischemic core and penumbra from CTP and presenting NIHSS. PLR curve morphological parameters were analyzed to determine their correlation with NIHSS or CTP core infarct to penumbra volume ratio (with a lower ratio indicating less core infarct relative to penumbra). This ratio was used instead of the mismatch ratio to account for patients without ischemic core. Initial alpha was set at 0.05, and a post-hoc Bonferroni correction was used to arrive at a corrected alpha of 0.004.
Results: Twenty-two patients with acute ischemic stroke from LVO were recruited, of whom 59 % were female and 21/22 (96 %) had anterior circulation occlusion. The median (± standard deviation) NIHSS was 20.5 ± 9, median ASPECTS was 9 ± 2, and mean CTP core to penumbra volume ratio was 1.02 ± 1.71. Before post-hoc Bonferroni correction, a significant negative correlation was seen between MAX (r = -0.49, p = 0.04), CHANGE (r = -0.74, p < 0.001), and MCV (r = -0.5, p = 0.04) and the core infarct to penumbra volume ratio on CTP. In addition, before post-hoc Bonferroni correction, a significant negative correlation was seen between CHANGE (r = -0.43, p = 0.04) and MCV (r = -0.58, p = 0.005), and the NIHSS. A significant negative correlation between the core infarct to penumbra volume ratio on CTP for CHANGE (p < 0.001) was observed after post-hoc Bonferroni correction.
Conclusions: Quantitative smartphone pupillometry metrics may predict cerebral ischemia and ischemic penumbra in acute ischemic stroke patients with large vessel occlusion prior to intervention.
Competing Interests: Declaration of competing interest AJM: Equity interest in Apertur. ZB: None. HL: None. BGG: None. GMW: None. LBM: Co-founder with equity interest in Apertur. MRL: Consultant for Apertur, Medtronic, Aeaean Advisers, Metis Innovative, Stereotaxis; Equity interest in Apertur, Proprio, Stroke Diagnostics, Synchron, Hyperion Surgical, Fluid Biomed; Editorial board of Journal of NeuroInterventional Surgery; Data safety monitoring board for Arsenal Medical. IJA: Grants: CNS Foundation, Medtronic, Microvention, Penumbra; Equity: Remedy Robotics, Von Medical, Hyperion; Consultant: Remedy Robotics, Rapid Medical, Balt, Imperative Care.
(Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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