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Acupuncture versus propranolol in migraine prophylaxis: an indirect treatment comparison meta-analysis
Yao-Yao Chen1, Juan Li2, Min Chen3
1School of Acupuncture and Tuina, The Third Teaching Hospital/Institute of Acupuncture and Homeostasis Regulation, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Wenjiang District, Chengdu, 61000, China.
Background:
Propranolol is recommended as first-line treatment for preventing migraine attacks; acupuncture has not been compared with propranolol in a head-to-head trial.
Objective:
To compare acupuncture with propranolol using indirect treatment comparison meta-analysis.
Method:
We searched MEDLINE, EMBASE, and Cochrane Central Register of Controlled Trials (CENTRAL). Randomized controlled trials comparing acupuncture or propranolol with sham acupuncture, placebo, waiting-list control or usual care were included. We extracted information from the included trials using a standardized extraction form. The primary outcome was migraine episodes. The secondary outcomes included migraine days, migraine frequency, and adverse events.
Results:
We included 19 RCTs (n = 3656) after screening 1078 articles. The analysis showed that acupuncture had a significant advantage over propranolol in reducing migraine episodes over a 4-week period (SMD - 0.74, 95% CI - 1.04 to - 0.44). Acupuncture also had a significant advantage over waiting-list control in decreasing migraine frequency (SMD - 1.57, 95% CI - 2.08 to - 1.06). Acupuncture caused fewer adverse events than propranolol (RR 0.82, 95% CI 0.11-5.94).
Conclusions:
Acupuncture had a better effect than propranolol in reducing migraine episodes in indirect comparison. The result should be confirmed in subsequent head-to-head studies. Registration: PROSPERO CRD42018108585.
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