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Article type: Review Article
Authors: Femminella, Grazia Danielaa | Rengo, Giuseppeb; * | Komici, Klaraa | Iacotucci, Paolaa | Petraglia, Lauraa | Pagano, Gennaroa | de Lucia, Claudioa | Canonico, Vincenzoa | Bonaduce, Domenicoa | Leosco, Darioa | Ferrara, Nicolaa; b
Affiliations: [a] Department of Translational Medical Sciences, Federico II University of Naples, Naples, Italy | [b] Salvatore Maugeri Foundation, IRCCS, Scientific Institute of Telese, Telese Terme (BN), Italy
Correspondence: [*] Correspondence to: Giuseppe Rengo, MD, PhD, Salvatore Maugeri Foundation, IRCCS - Scientific Institute of Telese Terme, Via Bagni Vecchi, 1 - 82037 – Telese Terme (BN), Italy. Tel.: +39 0817463677; Fax: +39 0817462339; E-mail: giuseppe.rengo@unina.it.
Abstract: Autonomic dysfunction is very common in patients with dementia, and its presence might also help in differential diagnosis among dementia subtypes. Various central nervous system structures affected in Alzheimer's disease are also implicated in autonomic nervous system regulation, and it has been hypothesized that the deficit in central cholinergic function observed in Alzheimer's disease could likely lead to autonomic dysfunction. Several feasible tests can be used in clinical practice for the assessment of parasympathetic and sympathetic functions, especially in terms of cardiovascular autonomic modulation. In this review, we describe the different tests available and the evidence from the literature which indicate a definite presence of autonomic dysfunction in dementia at various degrees. Importantly, the recognition of dysautonomia, besides possibly being an early marker of dementia, would help prevent the disabling complications which increase the risk of morbidity, institutionalization, and mortality in these individuals.
Keywords: Alzheimer's disease, autonomic nervous system, baroreflex, functional recovery, orthostatic hypotension
DOI: 10.3233/JAD-140513
Journal: Journal of Alzheimer's Disease, vol. 42, no. 2, pp. 369-377, 2014
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