Ischemic ST depression maximal in V1-V4 (vs. V5-V6), even if less than 0.1 millivolt, is specific for Occlusion Myocardial Infarction (vs. subendocardial non-occlusive ischemia)

Conclusion: Among high-risk ACS patients, the specificity for OMI of suspected ischemic STDmaxV1-4 was 97%. STEMI criteria missed half of OMIs detected by STDmaxV1-4. These data support that any ischemic STD maximal in V1-V4 in ACS is due to OMI until proven otherwise.

Source: Dr. Smith's ECG Blog - June 27, 2021 Category: Cardiology Authors: Steve Smith Source Type: blogs