Impact of Adjunctive VNS on Drug Load, Depression Severity, and Number of Neuromodulatory Maintenance Treatments

Vagus nerve stimulation (VNS) is a long-term adjunctive treatment option in patients with difficult-to-treat depression (DTD). A total of <i>n</i> = 20 patients (mean age 52.6 years) were included in the multicenter, prospective, observational, naturalistic RESTORE-LIFE study and were tr...

Full description

Bibliographic Details
Main Authors: Erhan Kavakbasi, Helen Bauermeister, Lars Lemcke, Bernhard T. Baune
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/14/2/159
_version_ 1797298748886351872
author Erhan Kavakbasi
Helen Bauermeister
Lars Lemcke
Bernhard T. Baune
author_facet Erhan Kavakbasi
Helen Bauermeister
Lars Lemcke
Bernhard T. Baune
author_sort Erhan Kavakbasi
collection DOAJ
description Vagus nerve stimulation (VNS) is a long-term adjunctive treatment option in patients with difficult-to-treat depression (DTD). A total of <i>n</i> = 20 patients (mean age 52.6 years) were included in the multicenter, prospective, observational, naturalistic RESTORE-LIFE study and were treated with adjunctive VNS as an add-on to treatment as usual. Exploratory and secondary outcome parameters from a single center were investigated for this present analysis. The overall mean drug load slightly decreased from 4.5 at baseline to 4.4 at 12 months (Z = −0.534, <i>p</i> = 0.594). The drug load was lower in previous electroconvulsive therapy (ECT) responders than in non-responders. There was a reduction in the mean number of hospitalizations per month after VNS implantation (Z = 1.975, <i>p</i> = 0.048) and a significant decrease in the mean Montgomery Åsberg Depression Rating Scale (MADRS) score from 27.3 at baseline to 15.3 at 12 months (T = 4.230, degree of freedom (df) = 19, <i>p</i> = 0.001). A history of ECT response at baseline was associated with greater improvement in the MADRS score after 12 months of VNS (F = 8.171, <i>p</i> = 0.013). The number of neuromodulatory maintenance treatments decreased during the follow-up period. In summary, there was an alleviation in the burden of illness among DTD patients treated with VNS.
first_indexed 2024-03-07T22:39:30Z
format Article
id doaj.art-3cf1cb05d0e6403db9e4d3bbf86e6d8d
institution Directory Open Access Journal
issn 2076-3425
language English
last_indexed 2024-03-07T22:39:30Z
publishDate 2024-02-01
publisher MDPI AG
record_format Article
series Brain Sciences
spelling doaj.art-3cf1cb05d0e6403db9e4d3bbf86e6d8d2024-02-23T15:09:45ZengMDPI AGBrain Sciences2076-34252024-02-0114215910.3390/brainsci14020159Impact of Adjunctive VNS on Drug Load, Depression Severity, and Number of Neuromodulatory Maintenance TreatmentsErhan Kavakbasi0Helen Bauermeister1Lars Lemcke2Bernhard T. Baune3Department of Psychiatry, University Hospital Münster, University of Münster, 48149 Münster, GermanyDepartment of Psychiatry, University Hospital Münster, University of Münster, 48149 Münster, GermanyDepartment of Neurosurgery, University Hospital Münster, University of Münster, 48149 Münster, GermanyDepartment of Psychiatry, University Hospital Münster, University of Münster, 48149 Münster, GermanyVagus nerve stimulation (VNS) is a long-term adjunctive treatment option in patients with difficult-to-treat depression (DTD). A total of <i>n</i> = 20 patients (mean age 52.6 years) were included in the multicenter, prospective, observational, naturalistic RESTORE-LIFE study and were treated with adjunctive VNS as an add-on to treatment as usual. Exploratory and secondary outcome parameters from a single center were investigated for this present analysis. The overall mean drug load slightly decreased from 4.5 at baseline to 4.4 at 12 months (Z = −0.534, <i>p</i> = 0.594). The drug load was lower in previous electroconvulsive therapy (ECT) responders than in non-responders. There was a reduction in the mean number of hospitalizations per month after VNS implantation (Z = 1.975, <i>p</i> = 0.048) and a significant decrease in the mean Montgomery Åsberg Depression Rating Scale (MADRS) score from 27.3 at baseline to 15.3 at 12 months (T = 4.230, degree of freedom (df) = 19, <i>p</i> = 0.001). A history of ECT response at baseline was associated with greater improvement in the MADRS score after 12 months of VNS (F = 8.171, <i>p</i> = 0.013). The number of neuromodulatory maintenance treatments decreased during the follow-up period. In summary, there was an alleviation in the burden of illness among DTD patients treated with VNS.https://www.mdpi.com/2076-3425/14/2/159difficult-to-treat depressiontreatment-resistant depressionesketaminevagus nerve stimulationelectroconvulsive therapymedication load
spellingShingle Erhan Kavakbasi
Helen Bauermeister
Lars Lemcke
Bernhard T. Baune
Impact of Adjunctive VNS on Drug Load, Depression Severity, and Number of Neuromodulatory Maintenance Treatments
Brain Sciences
difficult-to-treat depression
treatment-resistant depression
esketamine
vagus nerve stimulation
electroconvulsive therapy
medication load
title Impact of Adjunctive VNS on Drug Load, Depression Severity, and Number of Neuromodulatory Maintenance Treatments
title_full Impact of Adjunctive VNS on Drug Load, Depression Severity, and Number of Neuromodulatory Maintenance Treatments
title_fullStr Impact of Adjunctive VNS on Drug Load, Depression Severity, and Number of Neuromodulatory Maintenance Treatments
title_full_unstemmed Impact of Adjunctive VNS on Drug Load, Depression Severity, and Number of Neuromodulatory Maintenance Treatments
title_short Impact of Adjunctive VNS on Drug Load, Depression Severity, and Number of Neuromodulatory Maintenance Treatments
title_sort impact of adjunctive vns on drug load depression severity and number of neuromodulatory maintenance treatments
topic difficult-to-treat depression
treatment-resistant depression
esketamine
vagus nerve stimulation
electroconvulsive therapy
medication load
url https://www.mdpi.com/2076-3425/14/2/159
work_keys_str_mv AT erhankavakbasi impactofadjunctivevnsondrugloaddepressionseverityandnumberofneuromodulatorymaintenancetreatments
AT helenbauermeister impactofadjunctivevnsondrugloaddepressionseverityandnumberofneuromodulatorymaintenancetreatments
AT larslemcke impactofadjunctivevnsondrugloaddepressionseverityandnumberofneuromodulatorymaintenancetreatments
AT bernhardtbaune impactofadjunctivevnsondrugloaddepressionseverityandnumberofneuromodulatorymaintenancetreatments