Effect of valproic acid on dementia onset in patients with bipolar disorder.
J Affect Disord
; 201: 131-6, 2016 Sep 01.
Article
en En
| MEDLINE
| ID: mdl-27208500
ABSTRACT
BACKGROUND:
Valproic acid (VPA) is widely used for treating patients with bipolar disorder; however, it has adverse effects on cognitive function. This study investigated the effect of VPA on the risk of dementia in patients with bipolar disorder.METHODS:
We analyzed data from Taiwan's Longitudinal Health Insurance Database 2010. Patients with bipolar disorder who were prescribed VPA for 28 days or at least once per month for 3 consecutive months after the index date were classified as the VPA-treated group, whereas those who did not receive VPA were classified as the VPA-untreated group. Both groups were tracked until the end of 2013 or until loss to follow-up to identify new-onset dementia events. Multivariable Cox proportional hazards models were used to estimate the hazard ratio (HR) of subsequent dementia associated with VPA treatment after adjustment for confounding variables.RESULTS:
The study comprised 5158 patients with bipolar disorder. The multivariable-adjusted HR for newly diagnosed dementia was 1.73 (95% confidence interval [CI], 1.24-2.41, P=0.001) for the VPA-treated group compared with the VPA-untreated group after adjustment for potential confounders. The VPA-treated group had a higher risk than did the VPA-untreated group after propensity score adjustment (HR=1.95, 95% CI=1.42-2.67, P<0.001).LIMITATION:
Certain variables that may affect the incidence of dementia were unavailable in the claims database and thus could not be considered.CONCLUSION:
Treating bipolar disorder with VPA increases the risk of dementia by 73-95%.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Trastorno Bipolar
/
Ácido Valproico
/
Demencia
/
Anticonvulsivantes
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
País/Región como asunto:
Asia
Idioma:
En
Revista:
J Affect Disord
Año:
2016
Tipo del documento:
Article
País de afiliación:
Taiwán