Table 3 Subgroup analysis of conservative treatment group
From: Treatment strategy for spontaneous coronary artery dissection based on anatomical characteristics
Conservative treatment (n = 36) | High-risk (n = 9) | Low-risk (n = 27) | p value | |
|---|---|---|---|---|
Clinical data | ||||
Age | 56.28 ± 13.98 | 48.11 ± 8.98 | 59.00 ± 14.41 | 0.041 |
Gender | ||||
Female | 20 (55.6) | 4 (44.4) | 16 (59.3) | 0.439 |
Male | 16 (44.4) | 5 (55.6) | 11 (40.7) | |
Coronary risk factor | ||||
Hypertension | 19 (52.8) | 4 (44.4) | 15 (55.5) | 0.563 |
Hyperlipidemia | 6 (16.7) | 2 (22.2) | 4 (14.8) | 0.606 |
Diabetes mellitus | 7 (19.4) | 2 (22.2) | 5 (18.5) | 0.808 |
Smoking | 11 (30.6) | 3 (33.3) | 8 (29.6) | 0.886 |
Clinical presentation | ||||
NSTEMI | 8 (22.2) | 1 (11.1) | 7 (25.9) | 0.213 |
STEMI | 8 (22.2) | 3 (33.3) | 5 (18.5) | |
UA | 19 (52.8) | 4 (44.4) | 15 (55.5) | |
SA | 1 (2.8) | 1 (11.1) | 0 (0) | |
Laboratory data | ||||
cTnT (ng/ml) | 0.22 ± 0.53 | 0.52 ± 0.99 | 0.12 ± 0.20 | 0.050 |
CK-MB (U/L) | 20.42 ± 20.11 | 33.11 ± 36.88 | 16.19 ± 7.19 | 0.027 |
NT-proBNP (pg/ml) | 565.69 ± 646.55 | 515.02 ± 326.75 | 582.59 ± 727.12 | 0.790 |
D-dimer (mg/L) | 0.80 ± 1.39 | 0.25 ± 0.14 | 0.96 ± 1.55 | 0.238 |
EF (%) | 57 ± 9.75 | 53.78 ± 9.67 | 58.16 ± 9.71 | 0.254 |
Angiographic findings | ||||
Culprit vessel | ||||
LAD | 16 (44.4) | 2 (22.2) | 14 (51.9) | 0.034 |
LCX | 5 (13.9) | 0 (0) | 5 (18.5) | |
RCA | 15 (41.7) | 7 (77.7) | 8 (29.6) | |
LM | 0 (0) | 0 (0) | 0 (0) | |
Affected segment | ||||
Proximal | 9 (25.0) | / | / | / |
Middle | 19 (52.8) | / | / | / |
Distal | 8 (22.2) | / | / | / |
Saw classification | ||||
Type 1 | 20 (55.6) | 5 (55.5) | 15 (55.5) | 0.181 |
Type 2 | 13 (36.1) | 2 (22.2) | 11 (40.7) | |
Type 3 | 3 (8.3) | 2 (22.2) | 1 (3.7) | |
Coronary analysis | ||||
Stenosis (%) | 58.53 ± 23.81 | 54.44 ± 27.09 | 57.22 ± 23.14 | 0.767 |
Length (mm) | 43.89 ± 27.15 | 37.22 ± 32.32 | 46.11 ± 25.51 | 0.403 |
Initial TIMI flow | ||||
0 | 2 (5.6) | 0 (0) | 2 (7.4) | 0.401 |
1 | 0 (0) | 0 (0) | 0 (0) | |
2 | 0 (0) | 0 (0) | 0 (0) | |
3 | 34 (94.4) | 9 (100) | 25 (92.6) | |
Atherosclerosis | 13 (36.1) | 5 (55.6) | 8 (29.6) | 0.161 |
Thrombus | 2 (5.6) | 1 (11.1) | 1 (3.7) | 0.401 |
Follow-up | ||||
1 year MACE | 5 (13.9) | 2 (22.2) | 3 (11.1) | 0.404 |
UA | 3 (8.3) | 0 (0) | 3 (11.1) | |
Heart failure | 2 (5.6) | 2 (22.2) | 0 (0) | |
Cardiac death | 0 (0) | 0 (0) | 0 (0) | |