The emergency department (ED) is the setting where acute musculoskeletal pain crises concentrate their greatest burden: spine, neck, and extremity injuries, frequently treated with opioids, anti-inflammatories, and muscle relaxants that carry their own risks — dependence, sedation, gastrointestinal effects. A pragmatic clinical trial published in Pain Medicine in December 2025 substantially expands the evidence base for acupuncture as a non-pharmacologic alternative in this setting. With 2,781 patients screened and 599 randomized in a high-complexity university emergency department, the study documents that acupuncture — both auricular and peripheral — reduces acute musculoskeletal pain significantly more than usual care, with benefits extending to stress, anxiety, and sleep.
The study was led by Dr. Stephanie A. Eucker and published in Pain Medicine (PMID: 41325194; DOI: 10.1093/pm/pnaf165). It is a pragmatic design — that is, conducted under real-world clinical care conditions, not in a controlled research environment — which confers high external validity: results reflect what would be expected in routine clinical implementation. The eligible population included adults with acute musculoskeletal pain (≤7 days of duration) affecting the neck, spine, or extremities, treated in a university-institution emergency service.
PRAGMATIC TRIAL DATA ON ED ACUPUNCTURE (PAIN MEDICINE, DEC 2025)
Design and Interventions
The 599 patients were allocated to two groups: usual care alone (n=189) or acupuncture added to usual care (n=410). The acupuncture protocol included immediate evaluation and treatment by a licensed acupuncturist in the ED itself, followed by ambulatory sessions twice weekly for one month. Two types of acupuncture were used: auricular acupuncture (points on the ear, a technique derived from Battlefield Acupuncture, widely used by the U.S. Armed Forces) and conventional peripheral acupuncture with body points selected according to the location of the pain. Both modalities were compared with usual care, which included prescribed analgesics, physical guidance, and standard ED referrals.
Results: Pain, Anxiety, and Sleep
With both groups matched at baseline (mean pain 7.1/10 in both), one-month evaluation showed pain of 3.8 in the control group versus 3.2 in the acupuncture group — a difference that, although numerically modest, is clinically meaningful when one considers that it occurs in addition to standard treatment, not in substitution. The additional reduction of 1.6 points for auricular acupuncture and 1.2 points for peripheral acupuncture represented genuine clinical improvement above expected regression to the mean. Patients in the acupuncture group also reported additional improvements in stress, anxiety, and sleep quality — outcomes frequently overlooked in conventional management of acute pain in the urgent care setting, but with direct impact on functional recovery and the prevention of pain chronification.
The most robust finding emerged in subgroup analysis: the 121 patients who completed six or more sessions of acupuncture (20.2% of the total sample) showed significantly larger pain reductions than the rest. This exploratory analysis suggests — although the finding is exploratory and requires confirmation in prospective studies — that acupuncture efficacy in the ED does not depend exclusively on the single emergency session, but raises the hypothesis that efficacy is potentiated with continuity of ambulatory treatment. The largest obstacle to session adherence was practical: 43.4% of patients (n=178) were unable to attend the continuity clinic owing to time and financial constraints.
Frequently Asked Questions
Yes. The trial used acupuncture as an adjunct to usual care — patients in the acupuncture group also received the analgesics prescribed by the ED. No adverse interactions were reported. Auricular and peripheral acupuncture have an established safety profile: the adverse events recorded were minimal (no data on serious events in the study). The acupuncture + analgesic combination may, in practice, allow lower doses of medication for the same level of pain control.
The trial included neck, spine, and extremity pain of up to 7 days’ duration. Data are not stratified by location, but previous studies and clinical practice suggest that acute low back pain, neck pain, and ankle or knee sprains respond well to auricular acupuncture in an urgent care protocol. Injuries that require structural treatment (fractures, complete tendon ruptures) need orthopedic management as the priority — acupuncture is an adjunct, not a substitute for structural diagnosis and treatment.
Auricular acupuncture — applied at points on the ear — has unique logistical advantages for the ED: it does not require special patient positioning, can be applied in minutes with the patient seated, does not interfere with assessment and procedures in other areas of the body, and allows semi-permanent needles to be left in place for days. The analgesic mechanism is mediated primarily by stimulation of the auricular vagus nerve (auricular branch of the Xth cranial nerve), which activates descending inhibitory pain circuits. The study also used conventional peripheral acupuncture, with comparable efficacy, for cases in which the physician preferred the body-point approach.
Founded in 1989 by physicians trained at the University of São Paulo (USP) and specialized in China, CEIMEC is a Brazilian national reference in the teaching and practice of medical acupuncture. With more than 3,000 physicians trained over 35 years, it collaborates with HC-FMUSP and is recognized by the Brazilian Medical College of Acupuncture (CMBA/AMB).