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. 2021 May 18;13(1):e12189.
doi: 10.1002/dad2.12189. eCollection 2021.

Clinico-pathological comparison of patients with autopsy-confirmed Alzheimer's disease, dementia with Lewy bodies, and mixed pathology

Atri Chatterjee  1 , Veronica Hirsch-Reinshagen  2 , Syed Ali Moussavi  1 , Blake Ducharme  1 , Ian R Mackenzie  2 , Ging-Yuek Robin Hsiung  1
Affiliations

Clinico-pathological comparison of patients with autopsy-confirmed Alzheimer's disease, dementia with Lewy bodies, and mixed pathology

Atri Chatterjee et al. Alzheimers Dement (Amst). .

Abstract

Introduction: Patients with Alzheimer's disease (AD) and dementia with Lewy bodies (DLB) frequently demonstrate coexistent AD neuropathological change (ADNC) and Lewy body pathology (LBP) at autopsy. We investigated the effects of ADNC and LBP on the clinical presentation of these patients.

Methods: We retrospectively compared clinical and pathological features of patients with different severity of ADNC and LBP. We also compared the burden of medullary LBP between patients with and without autonomic dysfunction.

Results: Compared to pure ADNC, patients with AD/LBP have higher prevalence of DLB symptoms. Autonomic dysfunction strongly predicted the presence of LBP in patients with clinically diagnosed AD, but was not associated with increased LBP burden in the medulla. Severity of ADNC, but not LBP, was associated with cerebral atrophy.

Discussion: Clinical presentation of patients with AD/LBP differs from patients with pure ADNC or LBP. Autonomic dysfunction is a useful marker of otherwise unsuspected LBP.

Keywords: Alzheimer's disease; Lewy body disease; autonomic dysfunction; dementia with Lewy bodies; mixed dementia.

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Conflict of interest statement

The authors declare no conflicts of interest.

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