Abstract
Background and Objectives: Chronic kidney disease (CKD) is present in 20% to 35% of acute ischemic stroke patients
and may increase the risk of poor functional outcome or death. We aimed to determine
whether CKD was associated with worse outcome in stroke patients treated with endovascular
thrombectomy (EVT). Design, Setting, Participants, and Measurements: Consecutive EVT patients were identified from a prospective registry and dichotomized
into patients with and without CKD, defined as an eGFR of less than 60 mL/min/1.73m2. The primary outcome was 3-month mortality following EVT. Secondary outcomes included
symptomatic intracerebral hemorrhage (defined by the Safe Implementation of Thrombolysis
in Stroke-Monitoring Study), early neurological recovery (defined as change in National
Institutes of Health Stroke Scale [NIHSS] score of ≥8 at 24 hours or an NIHSS of 0-1
at 24 hours) and functional independence (defined as a modified Rankin Scale [mRS]
score of 0, 1 or 2) at 3 months. Results: 378 EVT patients (223 men; mean ± SD age 65 ± 15 years) were included. The median
(IQR) admission eGFR was 71 (58-89) mL/min/1.73 m² and 117 (31%) patients had CKD.
Multiple logistic regression adjusted for potential confounders demonstrated that
CKD was a significant predictor of lower rates of functional independence (OR = .54,
95% CI, .31 to .90, P = .02), higher mRS scores (common OR = 1.78, 95% CI, 1.14 to 2.81, P = .01), and increased mortality (OR = 2.19, 95% CI, 1.16 to 4.12, P = .01). There was no association between CKD and early neurological recovery (OR = .92,
95% CI, .55 to 1.49, P = .71) or symptomatic intracerebral hemorrhage (OR = 1.18, 95% CI, .38 to 3.69, P = .77). Conclusions: CKD was a significant predictor of worse functional outcome and mortality in stroke
patients treated with EVT. The presence of CKD should not preclude patients from proceeding
to EVT, but may help with prognostication and improve shared decision-making between
patients, families and physicians.
Key Words
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Article info
Publication history
Published online: February 07, 2020
Accepted:
January 11,
2020
Received in revised form:
January 6,
2020
Received:
November 13,
2019
Footnotes
Funding: The Neurological Foundation of New Zealand funds a Clinical Fellowship for Dr William Diprose.
Identification
DOI: https://doi.org/10.1016/j.jstrokecerebrovasdis.2020.104665
Copyright
© 2020 Elsevier Inc. All rights reserved.
