Abstract
Background
Acupuncture is effective in functional constipation (FC) treatment, but the central mechanism has not been well investigated. This trial will combine functional magnetic resonance imaging (fMRI) and positron emission tomography-computed tomography (PET-CT) to investigate the potential central mechanism of acupuncture treatment for FC.
Methods
This is a multimodal neuroimaging randomized controlled trial. In total, 140 FC patients will be randomly allocated into four groups: the verum acupuncture group; the sham acupuncture group; the PEG 4000 group; and the waiting-list group. This trial will include a two-week baseline period and a two-week treatment period. Patients will receive 10 sessions of acupuncture, sham acupuncture, PEG 4000, or no intervention during the treatment period. The stool diary, Cleveland Constipation Score (CCS), Patient Assessment of Constipation Symptom (PAC-SYM), and Patient Assessment of Constipation Quality of Life Questionnaire (PAC-QoL) will be used to assess the clinical efficacy of different interventions. The MRI and PET-CT scans will be performed to detect cerebral functional changes in 15 patients in each group at baseline and at the end of treatment/waiting. Multimodal imaging data will be associated with clinical data to investigate possible correlation between brain activity changes elicited by different interventions and symptoms improvement.
Discussion
We hypothesize that acupuncture can treat FC through normalizing the pathological alteration of the cerebral activity. The results of this trial will allow us to re-testify the therapeutic effects of acupuncture treating for FC and to investigate the potential central mechanism of acupuncture treatment for FC from direct (cerebral glucose metabolism) and indirect (contrast of oxyhemoglobin and deoxyhemoglobin) approaches.
Trial registration
Chinese Clinical Trial Registry, ChiCTR1800016658. Registered on 14 June 2018.
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Details
1 Acupuncture and Tuina School/The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China (GRID:grid.411304.3) (ISNI:0000 0001 0376 205X)
2 Acupuncture and Tuina School/The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China (GRID:grid.411304.3) (ISNI:0000 0001 0376 205X); Chengdu University of Traditional Chinese Medicine, Acupuncture-Brain Research Center, Chengdu, China (GRID:grid.411304.3) (ISNI:0000 0001 0376 205X)
3 Chengdu University of Traditional Chinese Medicine, Acupuncture-Brain Research Center, Chengdu, China (GRID:grid.411304.3) (ISNI:0000 0001 0376 205X); Chengdu University of Traditional Chinese Medicine, School of Administration, Chengdu, China (GRID:grid.411304.3) (ISNI:0000 0001 0376 205X)