Acupuncture Analgesia in Patients with Postoperative Neck Pain: A Protocol for Systematic Review and Meta-Analysis

Table 1

Search strategy used in PubMed database.

Number	Search terms
1	MeSH descriptor: [neck dissection] explode all trees
2	(Tonsillectom^∗):ab,ti, kw or (thyroidectom^∗):ab,ti, kw or (parathyroidectom^∗):ab,ti,kw
3	1 or 2
4	MeSH descriptor: [pain, postoperative] explode all trees
5	(Postsurgical pain):ab,ti, kw or (postoperative pain)ab,ti, kw or (perioperative period):ab,ti,kw
6	4 or 5
7	MeSH descriptor: [hyperalgesia] explode all trees
8	(Hyperalg^∗):ab,ti, kw or (hyperalgesic sensation^∗):ab,ti, kw or (secondary hyperalg^∗):ab,ti, kw or (hyperalgesia^∗, thermal):ab,ti, kw or (primary hyperalgia^∗):ab,ti, kw or (mechanical hyperalg^∗):ab,ti, kw or (allodynia, thermal):ab,ti, kw or (allodynia^∗):ab,ti, kw or (tactile allodynia):ab,ti, kw or (mechanical allodynia):ab,ti,kw
9	7 or 8
10	6 or 9
11	MeSH descriptor: [acupuncture therapy] explode all trees
12	(Acupuncture treatment^∗):ab.ti.kw or (pharmacoacupuncture treatment):ab,ti, kw or (pharmacoacupuncture Therapy):ab,ti, kw or (acupotom^∗):ab,ti,kw
13	11 or 12
14	MeSH descriptor: [acupuncture, ear] explode all trees
15	(Ear acupuncture^∗):ab,ti, kw or (auricular acupuncture^∗):ab,ti,kw
16	14 or 15
17	MeSH descriptor: [electroacupuncture] explode all trees
18	13 or 16 or 17
19	3 and 10 and 18