Acupuncture in severe, stable angina pectoris: a randomized trial.

Area of Science:

• Integrative Medicine
• Cardiology
• Pain Management

Background:

• Stable angina pectoris resistant to medical treatment presents a clinical challenge.
• Current treatment options for refractory angina are limited.
• Exploring complementary therapies like acupuncture is warranted.

Purpose of the Study:

• To evaluate the efficacy of acupuncture in improving cardiac work capacity in patients with refractory angina pectoris.
• To compare active acupuncture with sham acupuncture in a randomized controlled trial.

Main Methods:

• A single-blind randomized controlled trial involving 26 patients with stable angina pectoris.
• Patients were randomized to receive either active acupuncture or sham acupuncture.
• Outcomes measured included anginal attack rate, nitroglycerin consumption, and exercise tests (assessing pressure-rate-product).

Main Results:

• Active acupuncture significantly increased cardiac work capacity, measured by difference in pressure-rate-product (dPRP) and maximal PRP during exercise (p < 0.001).
• No significant differences were observed in anginal attack rate or nitroglycerin consumption between groups.
• Sham acupuncture demonstrated no significant effect, and no adverse effects were reported.

Conclusions:

• Acupuncture may be an effective complementary therapy for improving cardiac work capacity in patients with angina pectoris refractory to conventional medical treatment.
• Further research is needed to elucidate the mechanisms and long-term effects of acupuncture in this patient population.