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Cognitive impairment and posttraumatic stress in breast cancer patients during the first year after diagnosis

by Varinka Voigt

Institution: Ludwig-Maximilians-Universitt
Year: 2017
Posted: 02/01/2018
Record ID: 2153721
Full text PDF: https://edoc.ub.uni-muenchen.de/20844/


Abstract

Cancer patients frequently report symptoms of cognitive impairment and posttraumatic stress. Until recently, it was assumed that cognitive deteriorations in cancer patients are attributable to neurotoxic effects of chemotherapy. However, new research indicates that cognitive impairment cannot be caused by cancer treatment alone most likely also cancer-related posttraumatic stress affects cognition. Elucidating the causes of cognitive dysfunction and posttraumatic stress in cancer patients is crucial for prevention and effective psychological intervention.This cumulative dissertation summarizes two publications of the prospective, longitudinal and controlled COGNICARES-study, which were published in peer-reviewed international journals with current impact factors that rank among the top 80% in the Journal Citation Report. COGNICARES is the first large study that applied an extensive neuropsychological test battery and a validated clinical interview at three assessment times, to measure cognitive functioning and posttraumatic stress in women with mamma carcinoma and in a control group. Prior to the start of any cancer treatment, limited cognitive impairment was found in cancer patients, which was mediated by posttraumatic stress. Only few patients were diagnosed with a full-blown acute or posttraumatic stress disorder (ASD, PTSD) but shortly after the cancer diagnosis, more than 80% of patients experienced symptoms of PTSD, which did not completely resolve during the first year after cancer diagnosis in the majority of patients. Implications of the findings are discussed in the context of the recently published Diagnostic and Statistical Manual of Mental Diseases-V (DSM-V). Krebspatienten klagen hufig ber kognitive Probleme und Symptome einer posttraumatischen Belastungsstrung. Bis vor kurzem wurde die Beeintrchtigung kognitiver Funktionen ausschlielich auf die neurotoxische Wirkung von Chemotherapie zurckgefhrt. Jngste Studien weisen hingegen darauf hin, dass kognitive Strungen bei Krebspatienten nicht ausschlielich durch Chemotherapie verursacht sein knnen vermutlich beeinflusst zustzlich krebsspezifischer, posttraumatischer Stress die kognitiven Fhigkeiten. Die Aufklrung der Ursachen von kognitiver Dysfunktion und posttraumatischem Stress bei Krebspatienten ist relevant fr Prvention und Therapie.Diese kumulative Dissertation fasst zwei Artikel der prospektiven, kontrollierten Lngsschnittstudie COGNICARES zusammen, die in referierten (peer-reviewed) Fachzeitschriften von internationalem Niveau verffentlicht wurden. Die Zeitschriften haben jeweils einen fachspezifischen Impact-Faktor, der dem Journal Citation Report zufolge zu den besten 80% zhlt. COGNICARES ist die erste groangelegte Studie, in der eine umfangreiche neuropsychologische Testbatterie und ein validiertes klinisches Interview zu drei Messzeitpunkten eingesetzt wurden, um kognitive Funktionen und posttraumatischen Stress bei Patientinnen mit Mamakarzinom und bei einer Kontrollgruppe zu untersuchen. Vor Therapiebeginn wurdenAdvisors/Committee Members: Harbeck, Nadia (advisor).

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