Predictors of cognitive changes in patients with schizophrenia undergoing electroconvulsive therapy
Introduction: Previous studies on the effects of electroconvulsive therapy (ECT) on cognition in schizophrenia have been inconclusive. This study aimed to identify factors that may predict cognitive improvement or deterioration in patients with schizophrenia after-ECT. Materials & methods: Pa...
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/169715 |
| _version_ | 1811693749550448640 |
|---|---|
| author | Rajagopalan, Arvind Lim, Kenny Wai Kwong Tan, Xiao Wei Martin, Donel Lee, Jimmy Tor, Phern-Chern |
| author2 | Lee Kong Chian School of Medicine (LKCMedicine) |
| author_facet | Lee Kong Chian School of Medicine (LKCMedicine) Rajagopalan, Arvind Lim, Kenny Wai Kwong Tan, Xiao Wei Martin, Donel Lee, Jimmy Tor, Phern-Chern |
| author_sort | Rajagopalan, Arvind |
| collection | NTU |
| description | Introduction:
Previous studies on the effects of electroconvulsive therapy (ECT) on cognition in schizophrenia have been inconclusive. This study aimed to identify factors that may predict cognitive improvement or deterioration in patients with schizophrenia after-ECT.
Materials & methods:
Patients with schizophrenia or schizoaffective disorder with predominantly positive psychotic symptoms, who were treated with ECT at the Institute of Mental Health (IMH), Singapore, between January 2016 and January 2018, were assessed. Montreal Cognitive Assessment (MoCA), Brief Psychiatric Rating Scale (BPRS) and Global Assessment of Function (GAF) were performed before and after ECT. Patients with clinically significant improvement, deterioration or no change in MoCA scores were compared on demographics, concurrent clinical treatment and ECT parameters.
Results:
Of the 125 patients analysed, 57 (45.6%), 36 (28.8%) and 32 (25.6%) showed improvements, deterioration and no change in cognition respectively. Age and voluntary admission predicted MoCA deterioration. Lower pre-ECT MoCA and female sex predicted MoCA improvement. Patients showed improvements in GAF, BPRS and BPRS subscale scores on average, except for the MoCA deterioration group, who did not show statistically significant improvement in negative symptom scores. Sensitivity analysis showed that nearly half the patients (48.3%) who were initially unable to complete MoCA pre-ECT were able to complete MoCA post-ECT.
Conclusions:
The majority of patients with schizophrenia demonstrate improved cognition with ECT. Patients with poor cognition pre-ECT are more likely to see improvement post-ECT. Advanced age may be a risk factor for cognitive deterioration. Finally, improvements in cognition may be associated with improvements in negative symptoms. |
| first_indexed | 2024-10-01T06:56:38Z |
| format | Journal Article |
| id | ntu-10356/169715 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:56:38Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1697152023-08-06T15:38:12Z Predictors of cognitive changes in patients with schizophrenia undergoing electroconvulsive therapy Rajagopalan, Arvind Lim, Kenny Wai Kwong Tan, Xiao Wei Martin, Donel Lee, Jimmy Tor, Phern-Chern Lee Kong Chian School of Medicine (LKCMedicine) Institute of Mental Health, Singapore Science::Medicine Brief Psychiatric Rating Scale Electroconvulsive Therapy Introduction: Previous studies on the effects of electroconvulsive therapy (ECT) on cognition in schizophrenia have been inconclusive. This study aimed to identify factors that may predict cognitive improvement or deterioration in patients with schizophrenia after-ECT. Materials & methods: Patients with schizophrenia or schizoaffective disorder with predominantly positive psychotic symptoms, who were treated with ECT at the Institute of Mental Health (IMH), Singapore, between January 2016 and January 2018, were assessed. Montreal Cognitive Assessment (MoCA), Brief Psychiatric Rating Scale (BPRS) and Global Assessment of Function (GAF) were performed before and after ECT. Patients with clinically significant improvement, deterioration or no change in MoCA scores were compared on demographics, concurrent clinical treatment and ECT parameters. Results: Of the 125 patients analysed, 57 (45.6%), 36 (28.8%) and 32 (25.6%) showed improvements, deterioration and no change in cognition respectively. Age and voluntary admission predicted MoCA deterioration. Lower pre-ECT MoCA and female sex predicted MoCA improvement. Patients showed improvements in GAF, BPRS and BPRS subscale scores on average, except for the MoCA deterioration group, who did not show statistically significant improvement in negative symptom scores. Sensitivity analysis showed that nearly half the patients (48.3%) who were initially unable to complete MoCA pre-ECT were able to complete MoCA post-ECT. Conclusions: The majority of patients with schizophrenia demonstrate improved cognition with ECT. Patients with poor cognition pre-ECT are more likely to see improvement post-ECT. Advanced age may be a risk factor for cognitive deterioration. Finally, improvements in cognition may be associated with improvements in negative symptoms. Published version 2023-08-01T02:14:30Z 2023-08-01T02:14:30Z 2023 Journal Article Rajagopalan, A., Lim, K. W. K., Tan, X. W., Martin, D., Lee, J. & Tor, P. (2023). Predictors of cognitive changes in patients with schizophrenia undergoing electroconvulsive therapy. PloS One, 18(5), e0284579-. https://dx.doi.org/10.1371/journal.pone.0284579 1932-6203 https://hdl.handle.net/10356/169715 10.1371/journal.pone.0284579 37159469 2-s2.0-85159567305 5 18 e0284579 en PloS one © 2023 Rajagopalan et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. application/pdf |
| spellingShingle | Science::Medicine Brief Psychiatric Rating Scale Electroconvulsive Therapy Rajagopalan, Arvind Lim, Kenny Wai Kwong Tan, Xiao Wei Martin, Donel Lee, Jimmy Tor, Phern-Chern Predictors of cognitive changes in patients with schizophrenia undergoing electroconvulsive therapy |
| title | Predictors of cognitive changes in patients with schizophrenia undergoing electroconvulsive therapy |
| title_full | Predictors of cognitive changes in patients with schizophrenia undergoing electroconvulsive therapy |
| title_fullStr | Predictors of cognitive changes in patients with schizophrenia undergoing electroconvulsive therapy |
| title_full_unstemmed | Predictors of cognitive changes in patients with schizophrenia undergoing electroconvulsive therapy |
| title_short | Predictors of cognitive changes in patients with schizophrenia undergoing electroconvulsive therapy |
| title_sort | predictors of cognitive changes in patients with schizophrenia undergoing electroconvulsive therapy |
| topic | Science::Medicine Brief Psychiatric Rating Scale Electroconvulsive Therapy |
| url | https://hdl.handle.net/10356/169715 |
| work_keys_str_mv | AT rajagopalanarvind predictorsofcognitivechangesinpatientswithschizophreniaundergoingelectroconvulsivetherapy AT limkennywaikwong predictorsofcognitivechangesinpatientswithschizophreniaundergoingelectroconvulsivetherapy AT tanxiaowei predictorsofcognitivechangesinpatientswithschizophreniaundergoingelectroconvulsivetherapy AT martindonel predictorsofcognitivechangesinpatientswithschizophreniaundergoingelectroconvulsivetherapy AT leejimmy predictorsofcognitivechangesinpatientswithschizophreniaundergoingelectroconvulsivetherapy AT torphernchern predictorsofcognitivechangesinpatientswithschizophreniaundergoingelectroconvulsivetherapy |