From: A study to assess changes in myocardial perfusion after treatment with spinal cord stimulation and percutaneous myocardial laser revascularisation; data from a randomised trial
CCS class at 1 year
PMR (n = 28)
SCS (n = 28)
1
1 (4%)
6 (21%)
2
12 (43%)
13 (46%)
3
7 (25%)
4 (14%)
4
8 (29%)
5 (18%)