Table 2

Adverse events *


Months 0–12 post-
procedure
Months 13–24 post-
procedure




SCS
PMR
SCS
PMR

Disease-related




     Unstable angina
16 (10)
16 (7)
7 (5)
12 (4)
     Myocardial infarction
4 (3)
1 (1)
1 (1)
1 (1)
     Loss of pain relief/angina worse
5 (5)
3 (2)
3 (3)
8 (6)
Total disease related
25 (18)
20 (10)
11 (9)
21 (11)
SCS related: Infection of SCS system
0
NA
0
2 (2)
          Undesirable change in stimulation
7 (5)
NA
5 (5)
2 (1)
          Pain at neurostimulator site
5 (3)
NA
0
0
          Neurostimulator migration
2 (2)
NA
1 (1)
0
          Lead migration
1 (1)
NA
0
0
PMR related: Femoral pseudoaneurysm
0
1 (1)
0
0
          Groin haematoma
1 (1)
2 (2)
0
0
Other
4 (3)
7 (7)
7 (5)
4 (4)
Total
45 (17)
30 (15)
24 (18)
29 (12)
Total excluding SCS/PMR related
29 (14)
27 (14)
18 (12)
25 (11)
Severity




Mild
2 (2)
2 (2)
0
0
Moderate
5 (5)
0
0
3 (2)
Severe**
38 (15)
28 (15)
24 (18)
26 (11)
Total
45 (17)
30 (15)
24 (18)
29 (12)

*Data are number of events (number of patients), NA means Not Applicable.

**Severe included events which: required hospital admission and/or surgery, prolonged hospital stay, or were life-threatening or fatal.

Dyer et al. Trials 2008 9:40   doi:10.1186/1745-6215-9-40