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Think Fast, Treat Faster – A Case of a Treatable Rapidly Progressive Dementia

Published online by Cambridge University Press:  23 March 2020

V. Espirito Santo*
Affiliation:
Centro Hospitalar Trás-os-Montes e Alto Douro, Serviço de Neurologia, Vila Real, Portugal
A.R. Figueiredo
Affiliation:
Centro Hospitalar Trás-os-Montes e Alto Douro, Serviço de Psiquiatria, Vila Real, Portugal
R. Almendra
Affiliation:
Centro Hospitalar Trás-os-Montes e Alto Douro, Serviço de Neurologia, Vila Real, Portugal
A. Almeida
Affiliation:
Centro Hospitalar Trás-os-Montes e Alto Douro, Serviço de Neurologia, Neuropsicologia,, Vila Real, Portugal
P. Guimaraes
Affiliation:
Centro Hospitalar Trás-os-Montes e Alto Douro, Serviço de Neurologia, Vila Real, Portugal
A.G. Velon
Affiliation:
Centro Hospitalar Trás-os-Montes e Alto Douro, Serviço de Neurologia, Vila Real, Portugal
*
*Corresponding author.

Abstract

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Introduction

Rapidly progressive dementias (RPD) are conditions that develop over days, weeks or months, which could be treatable if diagnosed in the acute phase.

Clinical case

A 62-year-old man with personal history of type 2 diabetes, started complaining of fronto-temporal headache, nausea and sub-febrile temperature. He went to his family doctor who prescribed ciprofloxacin 500 mg bid. Later on, he had difficulty to sleep and referred complex visual hallucinations. His family noted involuntary movements of the left upper limb and that he became more clumsy needing help for daily life activities. He went to our hospital one week later. He was apyretic and hemodynamically stable. On neurological examination, he had executive and visuospecial dysfunction, left limbs bradykinesia and ipsilateral limb ataxia. Involuntary movements of his left upper limb resembled alien limb phenomena. Complete blood count, complete metabolic panel, iron, folic acid, vitamin B12, anti-neuronal antibodies were normal. HIV, hepatitis B and C serologies were negative. Cerebrospinal fluid study showed 4 cells (100% mononuclear), normal glucose and protein levels, negative bacteriological exam but positive Herpes Simplex-1 Virus (HSV) DNA. Brain CT and MRI showed signs of ischemic microangiopathic leukoencephalopathy. He started treatment with acyclovir 30 mg/kg/d IV and quetiapine 100 mg id. His symptoms improved but he remained with a mild mnesic cognitive deficit and bradykinesia that stayed stable 3 years later.

Conclusion

This case exemplifies atypical HSV-1 encephalitis, one cause of RPD, that an early recognition is essential to reduce its associated morbidity.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Type
EV753
Copyright
Copyright © European Psychiatric Association 2016
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