Assessing cognitive change and quality of life 12 months after epilepsy surgery - development and application of reliable change indices and standardized regression-based change norms for a neuropsychological test battery in the german language

  • Objective: The establishment of patient-centered measures capable of empirically determining meaningful cognitive change after surgery can significantly improve the medical care of epilepsy patients. Thus, this study aimed to develop reliable change indices (RCIs) and standardized regression-based (SRB) change norms for a comprehensive neuropsychological test battery in the German language. Methods: Forty-seven consecutive patients with temporal lobe epilepsy underwent neuropsychological assessments, both before and 12 months after surgery. Practice-effect-adjusted RCIs and SRB change norms for each test score were computed. To assess their usefulness, the presented methods were applied to a clinical sample, and binary logistic regression analyses were conducted to model the odds of achieving improvement in quality of life (QOL) after surgery. Results: The determined RCIs at 90% confidence intervals and the SRB equations for each test score included in the test battery are provided. Cohen’s kappa analyses revealed a moderate mean agreement between the two measures, varying from slight to almost perfect agreement across test scores. Using these measures, a negative association between improvement in QOL and decline in verbal memory functions after surgery was detected (adjusted odds ratio = 0.09, p = 0.006). Significance: To the best of our knowledge, this study is the first to develop RCIs and SRB change norms necessary for the objective determination of neuropsychological change in a comprehensive test battery in the German language, facilitating the individual monitoring of improvement and decline in each patients’ cognitive functioning and psychosocial situations after epilepsy surgery. The application of the described measures revealed a strong negative association between improvement in QOL and decline in verbal memory functions after surgery.

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Metadaten
Author:Nadine Caroline ConradiORCiDGND, Marion Behrens, Anke Maria HermsenGND, Tabitha Kannemann, Nina Merkel, Annika Schuster, Thomas Michael FreimanORCiDGND, Adam StrzelczykORCiDGND, Felix RosenowORCiDGND
URN:urn:nbn:de:hebis:30:3-571899
DOI:https://doi.org/10.3389/fpsyg.2020.582836
ISSN:1664-1078
Parent Title (English):Frontiers in psychology
Publisher:Frontiers Media
Place of publication:Lausanne
Document Type:Article
Language:English
Date of Publication (online):2020/10/15
Date of first Publication:2020/10/15
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2020/12/09
Tag:cognitive decline; improvement in quality of life; longitudinal follow-up after epilepsy surgery; minimal clinically important difference; reliable change index; standardized regression-based change norms
Volume:11
Issue:Art. 582836
HeBIS-PPN:477655289
Institutes:Medizin / Medizin
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0