According to the 2020 Dutch guideline on chest pain (AP) without obstructive coronary artery disease, 70% of female and 30% of male patients undergoing a coronary angiogram (CAG), have no obstructive coronary artery disease.In the majority of patients the complaints are based on vascular dysfunction, including epicardial vascular spasms. For patients who are refractory to drug treatment, spinal cord stimulation (SCS) can be a treatment option. SCS is used for the treatment of refractory neuropathic and ischaemic pain. In recent studies the use of SCS is proven for refractory angina pectoris, but the group with refractory vasospastic angina pectoris (rVSA) predominantly seen in women with invalidating impairment of quality of life, is overlooked, as no evidence of obstruction is found at CAG. With this pilot study the investigators hypothesize that SCS is effective in reducing the number and intensity of angina attacks, reducing nitrate use, reducing inhospital treatment and ER presentations, thereby reducing medical costs, and above all, increasing quality of life.
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Seattle Angina Questionnaire (SAQ)
Timeframe: baseline (before implant) - 1 month after implant - 3 months after implant