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Title: Thyroid gland and cerebella lesions: New risk factors for sudden cardiac death in schizophrenia?
Authors: Scorza, Fulvio A. [UNIFESP]
Cavalheiro, Esper A. [UNIFESP]
Albuquerque, Marly de
Albuquerque, Juliana de
Cysneiros, Roberta M.
Terra, Vera C.
Arida, Ricardo M. [UNIFESP]
Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Univ Presbiteriana Mackenzie
Issue Date: 1-Feb-2011
Publisher: Churchill Livingstone
Citation: Medical Hypotheses. Edinburgh: Churchill Livingstone, v. 76, n. 2, p. 251-253, 2011.
Abstract: People with schizophrenia show a two to threefold increased risk to die prematurely than those without schizophrenia. Patients' life style, suicide, premature development of cardiovascular disease, high prevalence of metabolic syndrome and sudden cardiac death are well-known causes of the excess mortality. the exact pathophysiological cause of sudden death in schizophrenia is unknown, but it is likely that cardiac arrhythmia and respiratory abnormalities play potential role. Some antipsychotics may be associated with cardiovascular adverse events (e.g., QT interval prolongation) and lesions in specific brain regions, such as cerebella may be associated with respiratory abnormalities, suggesting that metabolic and brain dysfunction could lead to sudden cardiac death in patients with schizophrenia. However, exact knowledge regarding the association of these findings and schizophrenia is lacking. As subclinical hyperthyroidism has been linked with increased risk of cardiovascular disease and cerebella progressive atrophy has been observed in patients with schizophrenia, we propose in this paper that subclinical thyroid dysfunction and cerebella volume loss could be considered as new risk factor for sudden cardiac death in schizophrenia. (C) 2010 Elsevier B.V. All rights reserved.
ISSN: 0306-9877
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