Early and late onset depression in late life: a prospective study on clinical and structural brain characteristics and response to electroconvulsive therapy
Abstract:The clinical profile of late life depression is frequently associated with cognitive impairment, aging-related brain changes and somatic comorbidity. This two-site naturalistic longitudinal study aimed to explore differences in clinical and brain characteristics and response to electroconvulsive therapy (ECT) in early (EOD) versus late onset (LOD) late life depression (respectively onset < and ≥ 55 years). Methods Between January 2011 and December 2013, 110 patients aged 55 years and older with ECT treated uni… Show more
“…This leads to the hypothesis that WML may not be involved in the pathophysiology of severe LOD. Moreover, little differences were found between EOD and LOD in our cohort with severe LLD 20 indicating that age-at-onset may be an irrelevant specifier in severe depression.…”
Section: Discussionmentioning
confidence: 57%
“…These results are similar to our current findings and findings in our previous report, showing high ECT response rates in patients with severe LLD, high apathy scores, and WMH. 20…”
Section: Discussionmentioning
confidence: 99%
“…Patients were recruited for the Mood Disorders in Elderly treated with Electro-Convulsive Therapy (MODECT) study 20 from 2 tertiary psychiatric hospitals (GGZ inGeest, Amsterdam, the Netherlands and University Psychiatric Center, KU Leuven, Belgium) after being diagnosed with unipolar severe depression according to the DSM-IV-TR criteria. 21 The patients were aged 55 years or older.…”
Section: Methodsmentioning
confidence: 99%
“…18 However, electroconvulsive therapy (ECT) is equally effective in severely depressed patients with and without WMH. 19,20…”
Objective: Apathy symptoms are defined as a lack of interest and motivation. Patients with late-life depression (LLD) also suffer from lack of interest and motivation and previous studies have linked apathy to vascular white matter hyperintensities (WMH) of the brain in depressed and nondepressed patients. The aim of this study was to investigate the relationship between apathy symptoms, depressive symptoms, and WMH in LLD. We hypothesize that late-onset depression (LOD; first episode of depression after 55 years of age) is associated with WMH and apathy symptoms. Methods: Apathy scores were collected for 87 inpatients diagnosed with LLD. Eighty patients underwent brain magnetic resonance imaging. Associations between depressive and apathy symptoms and WMH were analyzed using linear regression. Results: All 3 subdomains of the 10-item Montgomery–Åsberg Depression Rating Scale correlated significantly with the apathy scale score (all P < .05). In the total sample, apathy nor depressive symptoms were related to specific WMH. In LOD only, periventricular WMH were associated with depression severity (β = 5.21, P = .04), while WMH in the left infratentorial region were associated with apathy symptoms (β coefficient = 5.89, P = .03). Conclusion: Apathy and depressive symptoms are highly overlapping in the current cohort of older patients with severe LLD, leading to the hypothesis that apathy symptoms are part of depressive symptoms in the symptom profile of older patients with severe LLD. Neither apathy nor depressive symptoms were related to WMH, suggesting that radiological markers of cerebrovascular disease, such as WMH, may not be useful in predicting these symptoms in severe LLD.
“…This leads to the hypothesis that WML may not be involved in the pathophysiology of severe LOD. Moreover, little differences were found between EOD and LOD in our cohort with severe LLD 20 indicating that age-at-onset may be an irrelevant specifier in severe depression.…”
Section: Discussionmentioning
confidence: 57%
“…These results are similar to our current findings and findings in our previous report, showing high ECT response rates in patients with severe LLD, high apathy scores, and WMH. 20…”
Section: Discussionmentioning
confidence: 99%
“…Patients were recruited for the Mood Disorders in Elderly treated with Electro-Convulsive Therapy (MODECT) study 20 from 2 tertiary psychiatric hospitals (GGZ inGeest, Amsterdam, the Netherlands and University Psychiatric Center, KU Leuven, Belgium) after being diagnosed with unipolar severe depression according to the DSM-IV-TR criteria. 21 The patients were aged 55 years or older.…”
Section: Methodsmentioning
confidence: 99%
“…18 However, electroconvulsive therapy (ECT) is equally effective in severely depressed patients with and without WMH. 19,20…”
Objective: Apathy symptoms are defined as a lack of interest and motivation. Patients with late-life depression (LLD) also suffer from lack of interest and motivation and previous studies have linked apathy to vascular white matter hyperintensities (WMH) of the brain in depressed and nondepressed patients. The aim of this study was to investigate the relationship between apathy symptoms, depressive symptoms, and WMH in LLD. We hypothesize that late-onset depression (LOD; first episode of depression after 55 years of age) is associated with WMH and apathy symptoms. Methods: Apathy scores were collected for 87 inpatients diagnosed with LLD. Eighty patients underwent brain magnetic resonance imaging. Associations between depressive and apathy symptoms and WMH were analyzed using linear regression. Results: All 3 subdomains of the 10-item Montgomery–Åsberg Depression Rating Scale correlated significantly with the apathy scale score (all P < .05). In the total sample, apathy nor depressive symptoms were related to specific WMH. In LOD only, periventricular WMH were associated with depression severity (β = 5.21, P = .04), while WMH in the left infratentorial region were associated with apathy symptoms (β coefficient = 5.89, P = .03). Conclusion: Apathy and depressive symptoms are highly overlapping in the current cohort of older patients with severe LLD, leading to the hypothesis that apathy symptoms are part of depressive symptoms in the symptom profile of older patients with severe LLD. Neither apathy nor depressive symptoms were related to WMH, suggesting that radiological markers of cerebrovascular disease, such as WMH, may not be useful in predicting these symptoms in severe LLD.
“…5 Research investigating age of depression onset as a predictor of treatment response has also reported contradictory results. 12 For example, several studies have found that early onset depression is associated with poorer treatment response, 13 slower remission, 14 and higher rates of recurrence 15,16 compared to late-onset depression.…”
Self-reported resilience may predict greater responsivity to antidepressant medication in older adults with MDD. Future research should investigate the potential for resilience training-and in particular, interventions designed to increase accommodative coping-to promote sustained remission of geriatric depression.
There is ongoing concern about the impact of electroconvulsive therapy (ECT) on cognition in patients with late-life depression (LLD), especially in patients for whom pretreatment Mini-Mental State Exam (MMSE) scores are low. Our aim was to examine the evolution of cognitive effects of ECT, using the MMSE in a large group of patients with LLD. Methods: One hundred nine patients aged 55 years and older with unipolar depression, referred for ECT, were included in our study. The MMSE was assessed before, during, immediately after, and 6 months after ECT. Results: MMSE scores improved significantly during the course of ECT and remained stable during the 6-month period after ending ECT for the total group. In the group of patients with a low MMSE score (< 24) at baseline, the MMSE score improved significantly during ECT, whereas in the group of patients with a normal MMSE score (≥24) at baseline, the score did not change significantly during ECT. In both groups, MMSE scores still increased slightly after ECT was discontinued. Conclusion: ECT does not cause deleterious cognitive effects, as measured with the MMSE, during and for 6 months after the ECT course in patients with LLD. In the event of a baseline cognitive impairment, MMSE scores tend to improve significantly during and for 6 months after the ECT course. The presence of pretreatment cognitive impairment should not lead clinicians to withhold ECT in older patients with severe depression.
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