Table 2.
Thirty-day mortality according to aVR ST level, infarct location, and the presence of right bundle branch block
| Lead aVR ST level |
Trend P-value | ||||
|---|---|---|---|---|---|
| ≤0 mm | 0.5 mm | 1 mm | ≥1.5 mm | ||
| All patients | |||||
| Anterior AMI (n = 7664) | 12.4% | 10.6% | 12.5% | 23.5% | 0.0188 |
| Number of patients | 5795 | 1090 | 566 | 213 | |
| Inferior AMI (n = 8161) | 6.3% | 8.9% | 13.0% | 22.3% | <0.0001 |
| Number of patients | 7201 | 595 | 253 | 112 | |
| Normal conduction (without RBBB) | |||||
| Anterior AMI (n = 7299) | 11.4% | 10.3% | 11.5% | 23.5% | 0.0046 |
| number of patients | 5485 | 1067 | 547 | 200 | |
| Inferior AMI (n = 8016) | 6.3% | 8.3% | 13.2% | 22.5% | <0.0001 |
| Number of patients | 7075 | 579 | 251 | 111 | |
| With RBBB | |||||
| Anterior AMI (n = 365)a | 31.0% | 26.1% | (34.4%) | 0.8399 | |
| Number of patients | 310 | 23 | 19 | 13 | |
| Inferior AMI (n = 145)a | 9.5% | (26.3%) | 0.0339 | ||
| Number of patients | 126 | 16 | 2 | 1 | |
AMI, acute myocardial infarction.
aPercentages in brackets are those for the combined groups when patient numbers were small.