Dokument: Kognitive Funktionseinschränkungen bei SARS-CoV-2-positiven Personen in häuslicher Isolation und die Korrelation mit depressiven Symptomen und Fatigue

Titel:Kognitive Funktionseinschränkungen bei SARS-CoV-2-positiven Personen in häuslicher Isolation und die Korrelation mit depressiven Symptomen und Fatigue
Weiterer Titel:Cognitive Impairment in SARS-CoV-2-Positive Individuals During Home Isolation and Its Correlation with Depressive Symptoms and Fatigue
URL für Lesezeichen:https://docserv.uni-duesseldorf.de/servlets/DocumentServlet?id=73953
URN (NBN):urn:nbn:de:hbz:061-20260831-124642-7
Kollektion:Dissertationen
Sprache:Deutsch
Dokumententyp:Wissenschaftliche Abschlussarbeiten » Dissertation
Medientyp:Text
Autor: Seifert, Henning [Autor]
Dateien:
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Dateien vom 15.07.2026 / geändert 15.07.2026
Beitragende: Albrecht, Philipp [Gutachter]
Feldt, Torsten [Gutachter]
Stichwörter:SARS-CoV 2 ,kognitive Einschränkungen,COVID-19,MoCA,BFI,BDI-FS
Dewey Dezimal-Klassifikation:600 Technik, Medizin, angewandte Wissenschaften » 610 Medizin und Gesundheit
Beschreibungen:Die häufigsten Allgemeinsymptome von COVID-19 umfassen Fieber, Husten, Schnupfen, Dyspnoe und Fatigue. Zusätzlich wurde von neurologischen Symptomen wie Geruchs- und Geschmacksverlust sowie kognitiven Einschränkungen berichtet. Die Mehrheit der mit SARS-CoV-2 infizierten Personen zeigte lediglich milde respiratorische Symptome, die ambulant behandelt werden konnten. Dennoch klagten auch Betroffene mit mildem Verlauf wiederholt über kognitive Beeinträchtigungen.
Im Rahmen dieser Studie wurde untersucht, ob es bei SARS-CoV-2-positiven Personen während der akuten Erkrankung sowie vier bis sechs Wochen später zu kognitiven Einschränkungen kommt. Zudem wurde geprüft, ob depressive Symptome oder Fatigue die kognitive Leistung beeinflussen. Die Ergebnisse wurden mit denen einer SARS-CoV-2-negativen Kontrollgruppe verglichen. 241 Teilnehmende wurden mittels CLICKDOC©-Videotelefonie zweimal im Abstand von vier bis sechs Wochen getestet. Zum Einsatz kamen das Montreal Cognitive Assessment (MoCA), das Beck Depression Inventory-Fast Screen sowie das Brief Fatigue Inventory.
In der akuten Krankheitsphase zeigten sich keine signifikanten Unterschiede in der Kognition zwischen den Gruppen. Nach vier bis sechs Wochen wurde in beiden Gruppen eine kognitive Verbesserung beobachtet, wobei die SARS-CoV-2-negativen Teilnehmenden bessere Leistungen erzielten. Zu beiden Testzeitpunkten lagen die MoCA-Werte im Durchschnitt über dem klinischen Cut-off für kognitive Beeinträchtigung.
Depressive Symptome unterschieden sich zwischen den Gruppen zu keinem Zeitpunkt signifikant. Bei SARS-CoV-2-positiven Personen mit depressiver Symptomatik in der Akutphase zeigten sich jedoch Hinweise auf eine kognitive Beeinträchtigung. Eine stärkere Fatigue wurde bei SARS-CoV-2-positiven Teilnehmenden zu beiden Zeitpunkten festgestellt, ohne signifikanten Einfluss auf die kognitive Leistung.
Durch die Ergebnisse wird nahegelegt, dass kognitive und affektive Symptome auch bei mildem COVID-19 klinisch relevant sein können und in zukünftigen Forschungs- und Versorgungskonzepten systematisch berücksichtigt werden sollten.

Common systemic manifestations of COVID-19 include fever, cough, rhinorrhea, dyspnea, and fatigue. Neurological sequelae such as anosmia, ageusia, and cognitive dysfunction have also been documented. While most individuals with SARS-CoV-2 infection present with mild respiratory symptoms manageable in an outpatient setting, persistent cognitive complaints are frequently reported even after mild disease courses.
This study investigated the presence of cognitive impairment in SARS-CoV-2–positive individuals during the acute phase and at a follow-up assessment four to six weeks later. Secondary objectives included evaluating the impact of depressive symptoms and fatigue on cognitive performance. A SARS-CoV-2–negative cohort served as the control group.
A total of 241 participants underwent two assessments, four to six weeks apart, via CLICKDOC© videoconferencing. The cognitive domain was evaluated using the Montreal Cognitive Assessment (MoCA), depressive symptoms via the Beck Depression Inventory–Fast Screen, and fatigue using the Brief Fatigue Inventory.
During the acute phase, no statistically significant differences in cognitive performance were observed between groups. At follow-up, both cohorts demonstrated improvement; however, the SARS-CoV-2–negative group achieved higher MoCA scores. At both time points, mean MoCA scores were above the clinical threshold for cognitive impairment.
Depressive symptomatology did not differ significantly between groups at any assessment. Nevertheless, SARS-CoV-2–positive participants presenting with depressive symptoms during the acute phase exhibited trends toward cognitive impairment. Fatigue severity was consistently higher in the SARS-CoV-2–positive cohort at both time points, without significant correlation with cognitive performance.
These findings indicate that even mild COVID-19 may be associated with clinically relevant cognitive and affective disturbances, warranting systematic consideration in future research protocols and post-infection care strategies.
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Dateien geändert am:31.08.2026
Promotionsantrag am:26.10.2025
Datum der Promotion:09.07.2026
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