[Systematic Review and Meta-Analysis of Non-Invasive Acupoint Therapy as an Approach to Urinary Itching Control in...

Uremic pruritus, one of the most painful symptoms experienced by patients receiving dialysis, seriously affects patient quality of life and health, causes physical and mental damage, and increases hospitalization and mortality rates. Multi-modal therapies with evidence-based healthcare are needed to provide patients receiving dialysis with more convenient and feasible medical resources.

Relevant domestic and international research on the effectiveness and methods of non-invasive acupoint therapy in improving uremic pruritus in dialysis patients was reviewed. Discussing related knowledge can facilitate the evidence-based use of non-invasive acupoint therapy in clinical practice by clinical medical personnel.

Based on the PRISMA (preferred reporting items for systematic reviews and meta-analyses) systematic literature review and integrated analysis method, a keyword search of related articles published before September 2023 was conducted in the following databases: PubMed, Cochrane Library, Embase, Web of Science, Airiti Library, Taiwan Master and Doctoral Dissertation System, Chinese Journal Full-text Database and Wanfang Data Knowledge Service Platform. In 2019, the second version of the Risk of Bias Tool for Randomized Controlled Trials was used to evaluate research quality, after which RevMan 5.4 and Stata 14.0 suite software were used for meta-analysis.

Nine of the 112 articles selected, including 10 sets of data and 597 participants, were included in the meta-analysis. The results indicate non-invasive acupoint therapy significantly reduces the degree of uremic pruritus (synthetic effect size = -1.30, 95% confidence interval [-1.67, -0.93], p < .00001). Because the heterogeneity test I² = 76%, showed a high degree of heterogeneity, a subgroup analysis was performed, showing that acupoint massage combined with traditional Chinese medicine fumigation and washing, a general simple itching assessment scale, and the Chinese region achieved better effect sizes.

Non-invasive acupoint therapy is easy to implement, inexpensive, non-invasive, and associated with few side effects. The authors hope these findings may increase the awareness and understanding of patients with dialysis regarding the practical operation techniques of itching acupoints. According to the results of this systematic review and meta-analysis, massage of the lung and endocrine acupoints at ST-6, SP-10, and LI-11 as well as the relevant points on the ear may be most effective in achieving urinary itching relief. Also, acupoint massage combined with traditional Chinese medicine fumigation, ST-6 far-infrared irradiation, or LI11 transcutaneous acupoint electrical stimulation can further relieve uremic pruritus in this patient population. Based on the results, acupoint massage combined with traditional Chinese medicine fumigation and washing is a complementary method of treatment for uremic pruritus that may be recommended to patients in the future.