The deceleration capacity - a new measure of heart rate variability evaluated in patients with schizophrenia and antipsychotic treatment.
Eur Psychiatry
; 28(2): 81-6, 2013 Feb.
Article
em En
| MEDLINE
| ID: mdl-21920708
ABSTRACT
BACKGROUND:
Schizophrenia is associated with increased cardiac mortality. A disturbed autonomic modulation of heart rate (HR) has been described in patients with schizophrenia in whom antipsychotic medication may represent an additional cardiac risk. The novel measure deceleration capacity (DC) of heart rate predicts cardiac mortality in patients with cardiovascular illnesses. The aim of the present paper was to calculate DC in patients with schizophrenia and to compare this measure with established parameters of heart rate variability (HRV).METHODS:
HRV and DC were calculated in 24-hour electrocardiogram (ECG) recordings of 20 unmedicated, 40 medicated patients with schizophrenia and 40 controls. As activity has a major influence on HRV, 4-hour periods of "sleep-" and "wake-" ECG were evaluated as additional parameters. Actigraphy was used to ensure comparable levels of activity in patients and controls.RESULTS:
The DC as well as the other established HRV measures were not significantly different comparing unmedicated patients with schizophrenia to healthy controls. However, medicated patients showed a significant reduction of DC calculated from ECG recordings during 4 hour over night periods.CONCLUSION:
Calculation of DC might contribute to a better monitoring and identification of an increased risk of cardiac mortality in patients with schizophrenia undergoing antipsychotic treatment.
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
6_ODS3_enfermedades_notrasmisibles
Base de dados:
MEDLINE
Assunto principal:
Esquizofrenia
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Sistema Nervoso Autônomo
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Antipsicóticos
/
Coração
/
Frequência Cardíaca
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Eur Psychiatry
Ano de publicação:
2013
Tipo de documento:
Article