Self-rated cognitive functions following chemotherapy in patients with breast cancer: A 6-month prospective study

Ryosuke Kitahata, Shinichiro Nakajima, Hiroyuki Uchida, Tetsu Hayashida, Maiko Takahashi, Shintaro Nio, Jinichi Hirano, Maki Nagaoka, Takefumi Suzuki, Hiromitsu Jinno, Yuko Kitagawa, Masaru Mimura

研究成果: Article査読

5 被引用数 (Scopus)


Purpose: The purpose of the study was to evaluate subjective (self-rated), family-rated, and objective (researcher-rated) cognitive functions in patients with breast cancer after chemotherapy. Method: We conducted a prospective study to trace self-rated cognitive functions in 30 patients with breast cancer at the completion of chemotherapy (T0) and 6 months later (T1). Subjective cognitive functions were assessed with Cognitive Failures Questionnaire (CFQ), Dysexecutive Questionnaire (DEX-S), and Everyday Memory Checklist (EMC-S) for attention, executive function, and episodic memory, respectively. Their family members also completed DEX-I and EMC-I for executive function and episodic memory, respectively. We also examined objective cognitive functions. Self-rated cognitive functions were compared with the normative data. They were compared between T0 and T1. We calculated correlation coefficients between self-rated and other cognitive functions. Results: At T0, 6 (20.0%) and 2 (6.7%) participants showed higher DEX-S and EMC-S scores than the normative data, respectively, while no participant had abnormal CFQ scores. At T1, DEX-S and EMC-S scores were normalized in 3 (50.0%) and 2 (100.0%) participants, respectively. No participant showed increases in CFQ scores. No changes were found in objective cognitive functions from T0 to T1. DEX-S and DEX-I or EMC-S and EMC-I scores were correlated at both T0 and T1, which did not survive multiple corrections. There was no association between subjective and objective cognitive functions. Conclusion: Impairments in subjective cognition may be transient after chemotherapy in patients with breast cancer. Furthermore, patients and their families appear to share similar prospects on their cognitive functions.

ジャーナルNeuropsychiatric Disease and Treatment
出版ステータスPublished - 2017 10月 3

ASJC Scopus subject areas

  • 精神医学および精神衛生
  • 生物学的精神医学


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