Depression Clinical and Research Program, Massachusetts General Hospital, Boston, Massachusetts, USA
Brain Imaging Center, McLean Hospital, Harvard Medical School, Boston, Massachusetts, USA
Department of Radiology, Sung Kyun Kwan University, Seoul, Korea
Depression Clinical and Research Program, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
Correspondence: Dr Dan V. Iosifescu, Massachusetts General Hospital, 50 Staniford Street, suite 401, Boston, Massachusetts 02114, USA.Tel: +1 617 724 7741; fax: +1 617 724 3028; e-mail: diosifescu{at}partners.org
Declaration of interest None. Funding detailed in Acknowledgements.
Background An increased incidence of brain white-matter hyperintensities has been described in major depressive disorder, butthe impact of such hyperintensities on treatment outcome is still controversial.
Aims To investigate the relationship of brain white-matter hyperintensities with cardiovascular risk factors and with treatment outcome in younger people with major depressive disorder.
Method We assessed brain white-matter hyperintensities and cardiovascular risk factors in 84 people with major depressive disorder prior to initiating antidepressant treatment. We also assessed hyperintensities in 35 matched controls.
Results We found no significant difference in the prevalence of white-matter hyperintensities between the depression and the control groups. Left-hemisphere subcortical hyperintensities correlated with lower rates of treatment response. We found no correlation between global hyperintensity measures and clinical outcome. Brain white-matter hyperintensities correlated with hypertension and age and withtotal cardiovascular risk score.
Conclusions Subcortical white-matter hyperintensities in the left hemisphere (but notin other brain areas) maybe associated with poor response to antidepressant treatment in major depression.
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