• Stochkendahl MJ
• Christensen HW
• Vach W
• Høilund-Carlsen PF
• Haghfelt T
• Hartvigsen J

• Acute Coronary Syndrome
• Chest Pain / therapy
• Comparative Study
• Manipulation, Spinal
• Self Care

Objective: The musculoskeletal system is a common but often overlooked cause of chest pain. The purpose of the present study is to evaluate the relative effectiveness of 2 treatment approaches for acute musculoskeletal chest pain: (1) chiropractic treatment that included spinal manipulation and (2) self-management as an example of minimal intervention.

Methods: In a nonblinded, randomized, controlled trial set at an emergency cardiology department and 4 outpatient chiropractic clinics, 115 consecutive patients with acute chest pain and no clear medical diagnosis at initial presentation were included. After a baseline evaluation, patients with musculoskeletal chest pain were randomized to 4 weeks of chiropractic treatment or self-management, with posttreatment questionnaire follow-up 4 and 12 weeks later. Primary outcome measures were numeric change in pain intensity (11-point box numerical rating scale) and self-perceived change in pain (7-point ordinal scale).

Results: Both groups experienced decreases in pain, self-perceived positive changes, and increases in Medical Outcomes Study Short Form 36-Item Health Survey scores. Observed between-group significant differences were in favor of chiropractic treatment at 4 weeks regarding the primary outcome of self-perceived change in chest pain and at 12 weeks with respect to the primary outcome of numeric change in pain intensity.

Conclusions: To the best of our knowledge, this is the first randomized trial assessing chiropractic treatment vs minimal intervention in patients without acute coronary syndrome but with musculoskeletal chest pain. Results suggest that chiropractic treatment might be useful; but further research in relation to patient selection, standardization of interventions, and identification of potentially active ingredients is needed.

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