Changes in Esophageal Motility after Acupuncture
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Chinese medicine is widely used in the East with good results for the treatment of many diseases. Acupuncture has been increasingly used and recognized as a complementary medical treatment. Some studies on gastrointestinal motility are available; however, acupuncture effect on esophageal motility is still elusive due to the lack of studies with adequate methodology. This study aims to evaluate acupuncture effect on esophageal motility.
We studied 16 (50% females, mean age 26 years) volunteers. No individual underwent acupuncture sessions previously. All individuals underwent high-resolution manometry. The test was performed in three phases: basal measurements, 20 min after acupuncture stimulation of the gastrointestinal point (ST36), or 20 min after acupuncture stimulation of a sham point (5 cm medial to ST36) (crossover). ST36 or sham points were alternated in order based on randomization. Lower esophageal sphincter (LES) resting and residual pressure, distal latency (DL) ,and distal contractility integral (DCI) were recorded. All tests were reviewed by two experienced investigators blinded to the acupuncture point.
LES resting pressure was significantly reduced after acupuncture (p = 0.015, Wilcoxon signed-rank test). DL was significantly increased after acupuncture (either Sham or ST36) as compared to basal measurement.
Our results showed that acupuncture on the digestive point decreases LES basal pressure. Acupuncture may be an alternative treatment to spastic disorders of the LES.
KeywordsEsophageal motility Acupuncture High resolution manometry Lower esophageal sphincter
FMV: acquisition of data, analysis and interpretation of data, drafting the article, and final approval of the version to be published.
FAMH: conception and design, acquisition of data, analysis and interpretation of data, drafting the article, and final approval of the version to be published.
DHH: conception and design, acquisition of data, and final approval of the version to be published.
MGP: review for intellectual content and final approval of the version to be published.
Compliance with Ethical Standards
The study protocol was approved by the local Ethics Committee, and written informed consent was obtained from each subject.
Conflict of Interest
The authors declare that they have no conflict of interest.
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