Introduction
ECG
Capacitive electrodes
Methods
System
Anterior MI | Inferior MI | LBBB, lateral MI | |
---|---|---|---|
Number of patients | 19 | 23 | 7 |
Male/female | 13/6 | 12/11 | 5/2 |
Age (years) | 69.7 ± 13.6 | 63.3 ± 15.6 | 60.3 ± 13.4 |
BMI (kg/m2) | 27.4 ± 3.8 | 28.3 ± 3.7 | 24.5 ± 3.0 |
Time from begin of chest pain to arrival in PCI clinic (min) | 306.2 ± 250.2 | 198.6 ± 139.1 | 191.1 ± 203.3 |
TIMI risk score | 5.0 ± 2.1 | 4.0 ± 2.7 | 3.9 ± 2.4 |
TIMI flow before PCI | 0.4 ± 1.0 | 0.7 ± 1.1 | 2.1 ± 1.5 |
TIMI flow after PCI | 2.7 ± 0.7 | 2.7 ± 0.9 | 3.0 ± 0.0 |
Killip Score | 1.3 ± 0.8 | 1.8 ± 1.3 | 1.4 ± 1.1 |
Number of patients smoking (%) | 5 (26.3%) | 5 (21.7%) | 4 (57.1%) |
Number of patients with hypertension (%) | 13 (68.4%) | 11 (47.8%) | 3 (42.9%) |
Number of patients with diabetes (%) | 1 (5.3%) | 6 (26.1%) | 1 (14.3%) |
Number of patients with positive medical history of family (%) | 2 (10.5%) | 5 (21.7%) | 1 (14.3%) |
Number of patients with hyperlipoproteinaemia (%) | 3 (15.7%) | 2 (8.7%) | 2 (28.6%) |
Extraction
Statistics
Results
ECGs of acute anterior STEMI
All leads |
P value |
r² | kECG (mV) mean ± SD | cECG (mV) mean ± SD |
---|---|---|---|---|
I ST-elevation | <0.0001 | 0.3867 | 0.027 ± 0.058 | 0.083 ± 0.143 |
I T-wave | <0.0001 | 0.3573 | 0.141 ± 0.141 | 0.243 ± 0.228 |
I R-spike | <0.0001 | 0.3569 | 0.672 ± 0.354 | 0.817 ± 0.759 |
II ST-elevation | 0.1076 | 0.05416 | 0.092 ± 0.111 | 0.119 ± 0.149 |
II T-wave | 0.2548 | 0.02750 | 0.306 ± 0.248 | 0.362 ± 0.261 |
II R-spike | <0.0001 | 0.4286 | 0.660 ± 0.459 | 0.645 ± 0.656 |
III ST-elevation | 0.0078 | 0.1413 | 0.121 ± 0.145 | 0.107 ± 0.173 |
III T-wave | 0.0007 | 0.2190 | 0.280 ± 0.302 | 0.258 ± 0.298 |
III R-spike | 0.6510 | 0.004390 | 0.418 ± 0.434 | 0.318 ± 0.368 |
aVL ST-elevation | 0.0004 | 0.2469 | 0.029 ± 0.073 | 0.062 ± 0.128 |
aVL T-wave | 0.0098 | 0.1421 | 0.083 ± 0.136 | 0.134 ± 0.168 |
aVL R-spike | 0.0212 | 0.1124 | 0.503 ± 0.377 | 0.627 ± 0.564 |
aVF ST-elevation | 0.9223 | 0.0002188 | 0.099 ± 0.119 | 0.099 ± 0.152 |
aVF T-wave | 0.0254 | 0.1085 | 0.297 ± 0.280 | 0.306 ± 0.261 |
aVF R-spike | 0.0034 | 0.1787 | 0.477 ± 0.431 | 0.419 ± 0.415 |
V1 ST-elevation | 0.8813 | 0.0005120 | 0.075 ± 0.085 | 0.043 ± 0.143 |
V1 T-wave | 0.3986 | 0.01624 | 0.164 ± 0.163 | 0.056 ± 0.147 |
V1 R-spike | 0.3088 | 0.02353 | 0.153 ± 0.146 | 0.293 ± 0.237 |
V2 ST-elevation | <0.0001 | 0.5505 | 0.167 ± 0.218 | 0.094 ± 0.110 |
V2 T-wave | <0.0001 | 0.4350 | 0.441 ± 0.345 | 0.194 ± 0.182 |
V2 R-spike | <0.0001 | 0.3724 | 0.304 ± 0.285 | 0.105 ± 0.119 |
V3 ST-elevation | <0.0001 | 0.6255 | 0.166 ± 0.180 | 0.099 ± 0.141 |
V3 T-wave | <0.0001 | 0.4262 | 0.576 ± 0.349 | 0.269 ± 0.206 |
V3 R-spike | 0.0002 | 0.2682 | 0.457 ± 0.473 | 0.346 ± 0.375 |
Anterior leads |
P value |
r² | kECG (mV) mean ± SD | cECG (mV) mean ± SD |
---|---|---|---|---|
I ST-elevation | 0.0028 | 0.4171 | 0.042 ± 0.071 | 0.174 ± 0.182 |
I T-wave | 0.0007 | 0.5005 | 0.179 ± 0.191 | 0.335 ± 0.267 |
I R-spike | <0.0001 | 0.7611 | 0.750 ± 0.356 | 0.581 ± 0.627 |
aVL ST-elevation | 0.0006 | 0.5052 | 0.061 ± 0.098 | 0.101 ± 0.135 |
aVL T-wave | 0.0150 | 0.3008 | 0.142 ± 0.179 | 0.170 ± 0.195 |
aVL R-spike | 0.0021 | 0.4370 | 0.682 ± 0.312 | 0.604 ± 0.649 |
V1 ST-elevation | 0.7940 | 0.004121 | 0.124 ± 0.084 | 0.013 ± 0.038 |
V1 T-wave | 0.8640 | 0.001775 | 0.182 ± 0.154 | 0.042 ± 0.102 |
V1 R-spike | 0.2061 | 0.09228 | 0.108 ± 0.146 | 0.327 ± 0.257 |
V2 ST-elevation | 0.0001 | 0.5841 | 0.345 ± 0.231 | 0.157 ± 0.124 |
V2 T-wave | 0.0007 | 0.5027 | 0.603 ± 0.413 | 0.261 ± 0.192 |
V2 R-spike | 0.0189 | 0.2836 | 0.158 ± 0.195 | 0.054 ± 0.083 |
V3 ST-elevation | 0.0004 | 0.5285 | 0.305 ± 0.186 | 0.198 ± 0.169 |
V3 T-wave | 0.0073 | 0.3532 | 0.750 ± 0.416 | 0.369 ± 0.237 |
V3 R-spike | 0.0121 | 0.3171 | 0.271 ± 0.454 | 0.190 ± 0.250 |
ECGs of acute inferior STEMI
Inferior leads |
P value |
r² | kECG (mV) mean ± SD | cECG (mV) mean ± SD |
---|---|---|---|---|
II ST-elevation | 0.3844 | 0.03622 | 0.179 ± 0.109 | 0.049 ± 0.087 |
II T-wave | 0.1003 | 0.1233 | 0.422 ± 0.293 | 0.296 ± 0.228 |
II R-spike | 0.0123 | 0.2632 | 0.857 ± 0.457 | 0.876 ± 0.632 |
III ST-elevation | 0.0014 | 0.3909 | 0.231 ± 0.133 | 0.108 ± 0.117 |
III T-wave | 0.0113 | 0.2688 | 0.426 ± 0.348 | 0.256 ± 0.278 |
III R-spike | 0.6084 | 0.01272 | 0.657 ± 0.466 | 0.364 ± 0.325 |
aVF ST-elevation | 0.1598 | 0.1012 | 0.182 ± 0.115 | 0.056 ± 0.088 |
aVF T-wave | 0.0066 | 0.3282 | 0.439 ± 0.329 | 0.260 ± 0.238 |
aVF R-spike | 0.4656 | 0.02835 | 0.701 ± 0.438 | 0.550 ± 0.429 |
ECGs of inferior STEMI with additional electrode
Inferior leads |
P value |
r² | kECG (mV) mean ± SD | cECG (mV) mean ± SD |
---|---|---|---|---|
II ST-elevation | 0.0358 | 0.4898 | 0.089 ± 0.065 | 0.107 ± 0.136 |
II T-wave | 0.0088 | 0.6489 | 0.300 ± 0.238 | 0.176 ± 0.253 |
II R-spike | 0.0076 | 0.6621 | 0.717 ± 0.438 | 1.125 ± 0.978 |
III ST-elevation | 0.0197 | 0.5641 | 0.117 ± 0.075 | 0.197 ± 0.221 |
III T-wave | 0.0452 | 0.4583 | 0.300 ± 0.217 | 0.213 ± 0.356 |
III R-spike | 0.1684 | 0.2521 | 0.378 ± 0.258 | 0.780 ± 0.657 |
aVF ST-elevation | 0.0018 | 0.8254 | 0.113 ± 0.058 | 0.152 ± 0.175 |
aVF T-wave | 0.0151 | 0.6542 | 0.256 ± 0.226 | 0.220 ± 0.289 |
aVF R-spike | 0.1229 | 0.3493 | 0.544 ± 0.353 | 0.906 ± 0.626 |