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Review ARTICLE Provisionally accepted The full-text will be published soon. Notify me

Front. Pharmacol. | doi: 10.3389/fphar.2019.01109

The Hyperactivity-Impulsivity-Irritiability-Disinhibition-Aggression-Agitation Domain in Alzheimer’s disease: Current management and future directions

 RACHEL M. KESZYCKI1, Daniel W. Fisher1 and  Hongxin Dong1*
  • 1Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, United States

Behavioral and psychological symptoms of dementia (BPSD) afflict the vast majority of patients with dementia, especially those with Alzheimer’s Disease (AD). In clinical settings, patients with BPSD most often do not present with just one symptom. Rather, clusters of symptoms commonly co-occur and can thus be grouped into behavioral domains that may ultimately be the result of disruptions in overarching neural circuits. One major BPSD domain routinely identified across patients with AD is the Hyperactivity-Impulsivity-Irritiability-Disinhibition-Aggression-Agitation (HIDA) Domain. The HIDA Domain represents one of the most difficult set of symptoms to manage in AD and accounts for much of the burden for caregivers and hospital staff. Although many studies recommend non-pharmacological treatments for HIDA Domain symptoms as first-line, they demonstrate little consensus as to what these treatments should be and are often difficult to implement clinically. Certain symptoms within the HIDA Domain also do not respond adequately to these treatments, putting patients at risk and necessitating adjunct pharmacological intervention. In this review, we summarize the current literature regarding non-pharmacological and pharmacological interventions for the HIDA Domain and provide suggestions for improving treatment. As epigenetic changes due to aging and AD both cause dysfunction in drug-targeted receptors, we propose that HIDA Domain treatments could be enhanced by adjunct strategies that modify these epigenetic alterations and thus increase efficacy and reduce side effects. To improve the implementation of non-pharmacological approaches in clinical settings, we suggest that issues regarding inadequate resources and guidance for implementation should be addressed. Finally, we propose that increased monitoring of symptom and treatment progression via novel sensor technology and the “DICE” (Describe, Investigate, Create, and Evaluate) approach may enhance both pharmacological and non-pharmacological interventions for the HIDA Domain.

Keywords: Behavioral and psychological symptoms (BPSD), Dementia, Alzheimer' disease, Non-pharmacological treatment, Pharmacological intervention

Received: 28 May 2019; Accepted: 29 Aug 2019.

Copyright: © 2019 KESZYCKI, Fisher and Dong. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dr. Hongxin Dong, Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, United States, h-dong@northwestern.edu