• Mei-Hua Wang, Chiehfeng Chen, Mei-Ling Yeh, and Jaung-Geng Lin.
• School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan.
• Am. J. Chin. Med. 2019 Jan 1; 47 (8): 1659-1674.

AbstractStudies have demonstrated the effect of acupoint-based interventions in relieving the clinical symptoms of asthma. However, the effect of meridian-based interventions in asthma symptom relief is unknown. This systematic review and meta-analysis determined the effect of multiplex meridian interventions in asthma symptom relief. Eight electronic databases were searched for relevant randomized controlled trials (RCTs) that involved patients with asthma, were published before March 2018, used acupoint stimulation interventions targeting acupoints that correspond to meridians, and considered asthma symptom relief as an outcome. In 204 RCTs that were identified and used in a meta-synthesis, meridians were used 521 times, with the bladder meridian being the most frequently used. Furthermore, 23 RCTs were included in the meta-analysis. Egger's and inconsistency tests revealed no significant differences among the studies ( P > 0 . 0 5 ). However, the interventions differed significantly in terms of asthma symptom relief effect, as demonstrated by pairwise (odds ratio [ OR ] = 0 . 2 8 , 95% confidence interval = 0 . 2 1 -0.37) and network ( OR = 0 . 1 8 , 95% credibility interval = 0 . 0 8 -0.41) meta-analyses. Surface under the cumulative ranking (SUCRA) revealed that the bladder-conception vessel-governor vessel-stomach multiplex meridian intervention was more effective than non-meridian interventions in relieving asthma symptoms. Additionally, either bladder-conception vessel-stomach or bladder-conception vessel-governor vessel-kidney multiplex meridians may be selected in interventions. This study suggests that practitioners target multiplex meridians, especially the meridians of the bladder and conception vessel, to effectively relieve asthma symptoms.

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