Published online Oct 26, 2019. doi: 10.12998/wjcc.v7.i20.3296
Peer-review started: April 30, 2019
First decision: September 9, 2019
Revised: September 19, 2019
Accepted: September 25, 2019
Article in press: September 25, 2019
Published online: October 26, 2019
Processing time: 179 Days and 12.5 Hours
The de Winter electrocardiography (ECG) pattern is a sign that implies proximal left anterior descending coronary artery occlusion in patients with chest pain. The previous view was that the de Winter ECG pattern is static.
A 65-year-old man presented with sudden chest pain at rest associated with diaphoresis for 55 min. The first ECG showed only T-wave inversion in III and aVF leads. Another ECG was performed at the 100th minute, showing upsloping ST segments depressed with tall and symmetrical T waves in the precordial leads; the J point was raised by 0.1 mV at the aVR lead. The patient was referred to our catheterization laboratory. A third ECG showed ST segment elevation by 0.2 mV in the I and aVL leads. The patient underwent emergency coronary angiography, which revealed complete proximal left anterior descending coronary (LAD) occlusion. The second patient presented with a 1-h history of sudden-onset, severe, substernal crushing chest pain. The first ECG showed ST-segment elevation (0.1–1.7 mV) in I, aVL, and precordial leads. The patient was referred to the catheterization laboratory. On arrival, his symptoms alleviated, and ECG showed that the ST-segments had significantly fallen back. The third ECG showed a typical de Winter pattern. Coronary angiography revealed 99% stenosis of the middle LAD.
The de Winter ECG pattern is transient and dynamic, and it reflects proximal or mid-LAD subtotal occlusion rather than total occlusion.
Core tip: The de Winter electrocardiography pattern is a sign that implies proximal left anterior descending coronary artery occlusion in patients with chest pain. The classic thinking of the de Winter pattern is that it represents a static situation. Our cases demonstrate that de Winter and ST-segment elevation myocardial infarction represent a dynamic spectrum that may evolve in either direction, i.e., toward coronary vessel occlusion or toward thrombolysis.