Numerous prospective, randomized control studies have shown have shown that spinal cord stimulation has anti-ischemic effects, including exercise testing, EKG monitoring, and coronary blood flow measurements. Studies have also shown a reduction in the number of anginal attacks, and also an improvement in exercise tolerance. Patients have, most importantly, described a better quality of life with spinal cord stimulation.

Reference

De Jongste MJL, Hautvast RW, Hillege HL, Lie KI. Efficacy of spinal cord stimulation as adjuvant therapy for intractable angina pectoris: a prospective, randomized clinical study. Working Group on Neurocardiology. J Am Coll Cardiol 1994;23:1592-7.