http://stroke.ahajournals.org/content/early/2015/08/13/STROKEAHA.115.010200.abstract?sid=70c1375f-6280-4c34-aa5b-28f4ef2bbd54
- Marije R. Benedictus, MSc,
- Anaïs Hochart, MD,
- Costanza Rossi, MD, PhD,
- Gregoire Boulouis, MD,
- Hilde Hénon, MD, PhD,
- Wiesje M. van der Flier, PhD and
- Charlotte Cordonnier, MD, PhD
+ Author Affiliations
- Correspondence to Charlotte Cordonnier, MD, PhD, Department of Neurology, Stroke Unit, Hopital Roger Salengro, INSERM U 1171, CHRU, University of Lille, Lille, France. E-mail charlotte.cordonnier@chru-lille.fr
Abstract
Background and Purpose—Stroke
and dementia are closely related, but no prospective study ever focused
on poststroke cognitive decline in patients
with intracerebral hemorrhage (ICH). We aimed
to determine prognostic factors for cognitive decline in patients with
ICH.
Methods—We
prospectively included 167 consecutive ICH survivors without preexisting
dementia from the Prognosis of Intra-Cerebral
Hemorrhage (PITCH) cohort. Median follow-up
was 4 years (interquartile range, 2.3–5.4). We explored factors
associated with
cognitive decline using linear mixed models.
Cognitive decline was determined based on repeated mini-mental state
examination.
We investigated each prognostic factor
separately in univariate models. Next, we constructed clinical and
radiological multivariable
models. In a sensitivity analysis, we
excluded patients with preexisting cognitive impairment.
Results—Median age
was 64 (interquartile range, 53–75) years, 69 (41%) patients were women,
and median mini-mental state examination
at 6 months was 27 (interquartile range,
23–29). Overall, 37% of the patients declined during follow-up. Factors
associated
with cognitive decline in univariate analyses
were previous stroke or transient ischemic attack, preexisting
cognitive impairment,
microbleed presence, severity of white matter
hyperintensities, and severity of cortical atrophy. In multivariable
analyses,
previous stroke or transient ischemic attack
(β [SE], −0.55 [0.23]; P<0.05), preexisting cognitive impairment (β [SE], −0.56 [0.25]; P<0.01), and severity of cortical atrophy (β [SE], −0.50 [0.19]; P<0.01) remained independent prognostic factors. In patients without preexisting cognitive impairment (n=139), severity of
cortical atrophy (β [SE], −0.38 [0.17]; P<0.05) was the only prognostic factor for future cognitive decline.
Conclusions—Prognostic
factors for cognitive decline after ICH are already present when ICH
occurs, suggesting a process of ongoing cognitive
impairment instead of new-onset decline
induced by the ICH itself.
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