Abstract
BACKGROUND: Late life depression is associated with volumetric reductions of gray matter and increased prevalence of subcortical white matter lesions. Previous studies have shown a poorer treatment outcome in those with more severe structural brain abnormalities. In this study, quantitative and semi-quantitative magnetic resonance imaging (MRI) measures were studied in relation to response to a 12-week controlled antidepressant monotherapy trial.
METHODS: MRI (1.5 T) brain scans of 42 elderly inpatients with major depression, of which 23 were non-responder to a controlled 12-week antidepressant monotherapy trial, were acquired. In addition, clinical outcome was assessed after a one year period. Measures were volumes of global cerebral and subcortical structures.
RESULTS: After controlling for confounding, no differences were found between non-responders and responders after 12 weeks and after one year in volumes of cerebral gray and white matter, orbitofrontal cortex, hippocampus and white matter lesions.
CONCLUSIONS: Structural brain measures associated with late life depression may not be related to short-term treatment response.
| Original language | English |
|---|---|
| Pages (from-to) | 468-474 |
| Number of pages | 7 |
| Journal | International Journal of Geriatric Psychiatry |
| Volume | 22 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2007 |
Keywords
- Activities of Daily Living
- Aged
- Aged, 80 and over
- Antidepressive Agents, Second-Generation
- Antidepressive Agents, Tricyclic
- Brain
- Cyclohexanols
- Depressive Disorder, Major
- Dose-Response Relationship, Drug
- Double-Blind Method
- Female
- Follow-Up Studies
- Humans
- Image Processing, Computer-Assisted
- Leukoaraiosis
- Magnetic Resonance Imaging
- Male
- Middle Aged
- Nerve Fibers, Myelinated
- Nortriptyline
- Venlafaxine Hydrochloride
- Comparative Study
- Journal Article
- Randomized Controlled Trial