Chinese Acupuncture for Chemobrain in Elderly Cancer Patients

Elderly cancer patients would suffer cognitive impairment due to chemotherapy, and a series of neurocognitive symptoms, known as "chemobrain". Chinese acupuncture plus herbal decoctions is an emerging therapeutic option for chemotherapy induced cognitive impairment in elderly cancer patients, despite limited supporting evidence. By evaluating this novel Chinese medicine mode in elderly cancer patients at our institution, the investigators aim to contribute to the existing knowledge in this area while establishing a basis for further research. The investigators will perform a study of all cases of "chemobrain" related elderly cancer patients treated with Chinese acupuncture from 2023 to 2025. The investigators would enroll 168 elderly cancer patients with clinically confirmed chemobrain; those for Chinese acupuncture will be treated with electroacupuncture (2 sessions per week over 8 weeks) ; the others will be received conventional drug therapy, or palliative-intent therapy. The Montreal Cognitive Assessment (MoCA) will be served as the primary outcome. Digit span test will be the secondary outcome for attentional function and working memory. The quality of life and multiple functional assessments will also be evaluated.