Trends in Clinical Research on Ultrasound-Guided Acupuncture: A Scoping Review

Abstract

Acupuncture is widely used to reduce pain and improve function in various conditions. Despite ongoing research in ultrasound-guided acupuncture, evidence supporting efficacy remains inconclusive. This study aimed to examine Korean and international research trends, clinical efficacy, and safety of ultrasound-guided acupuncture by performing a scoping review of clinical research on ultrasound-guided acupuncture. Literature searches were conducted across 11 databases, including all clinical studies published before April 2024, without restrictions on condition/disease or type of study. Of the 2,644 identified articles, 25 studies were selected for review, mostly involving patients with musculoskeletal pain, and post-stroke sequelae. Interventions included ultrasound-guided acupuncture, warming acupuncture, dry needling, and electroacupuncture. The effectiveness of ultrasound-guided acupuncture was evaluated using pain, functional disability, and effective rate as outcome measures, and most studies reported significant improvements. This study is the first scoping review to report on trends, clinical efficacy, and safety of ultrasound-guided acupuncture. While it demonstrates potential for treating musculoskeletal disorders, post-stroke sequelae, spinal injuries, and other conditions/diseases, research on its application remains limited to specific conditions/diseases. Furthermore, substantial variations were observed in types of acupuncture, application areas, and treatment frequencies. Future research should focus on high-quality randomized controlled trials with standardized ultrasound frequencies for specific conditions/diseases.