LAD_VERY_PROX
Technical documentation
Massive anteroseptal infarction (very proximal LAD, pre-S1/pre-D1)
Occlusion prior to the origin of the 1st septal (S1) and 1st diagonal (D1). Massive anteroseptal infarction with high risk of bifascicular block (RBBB + LAFB) and shock. ST elevation in V1-V4, I, aVL, and aVR with marked reciprocal depression in III > II.
Also known as: Massive anteroseptal infarction (very proximal LAD, pre-S1/pre-D1) · DA muy proximal · LAD muy proximal · infarto anterior extenso · infarto anteroseptal masivo · oclusion proximal de la descendente anterior · very proximal LAD occlusion · massive anteroseptal STEMI · pre-S1 LAD occlusion
What parameters does the model use?
The following values are applied by the simulation engine to this entity. They govern activation kinematics in the 3D model and the real-time synthesis of the 12-lead electrocardiogram.
What parameters does the model use?
| Parameter | Model value |
|---|---|
| Involved artery | LAD |
| ST elevation in | V1, V2, V3, V4, I, aVL, aVR |
| Reciprocal depression in | II, III, aVF |
| AHA 17-segment model | 1, 2, 7, 8, 9, 13, 14, 16, 17 |
| Occlusion severity | Total |
Which leads should be evaluated?
The catalog marks as primary diagnostic leads V1, V2, V3, V4, I, aVL, aVR. ST elevation in V1, V2, V3, V4, I, aVL, aVR; reciprocal ST depression in II, III, aVF.
In the simulator, these leads are highlighted on the 12-channel tracing and corresponding vectors are rendered on the 3D model, displaying electrical changes and anatomical origin simultaneously.
Frequently asked clinical questions
How is Massive anteroseptal infarction (very proximal LAD, pre-S1/pre-D1) identified on the 12-lead ECG?
Occlusion prior to the origin of the 1st septal (S1) and 1st diagonal (D1). Massive anteroseptal infarction with high risk of bifascicular block (RBBB + LAFB) and shock. ST elevation in V1-V4, I, aVL, and aVR with marked reciprocal depression in III > II. The characteristic diagnostic waveforms are generated in real time across the simulated 12-lead tracing.
Which leads are critical for diagnostic confirmation?
The primary diagnostic leads are V1, V2, V3, V4, I, aVL, aVR. ST elevation in V1, V2, V3, V4, I, aVL, aVR; reciprocal ST depression in II, III, aVF. In the simulator, these channels highlight the correlation with anatomical vectors.
What is the underlying electrophysiological or anatomical mechanism?
It represents transmural ischemia secondary to occlusion in the territory of the LAD.
How can this condition be explored in the 3D simulator?
MioAtlas offers direct deep-link reproducibility with preconfigured parameters, allowing full 3D cardiac rotation and lead vector inspection.
How do you open this configuration?
The simulator encodes its full state in the query string, providing a stable and reproducible URL:
https://mioatlas.com/simulador/en/?syn=SCACEST&ter=LAD_VERY_PROX
Related entities
Other entities in the same category within the catalog:
Sources and bibliographic references
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Wagner GS, Macfarlane P, Wellens H, et al. (2009). "AHA/ACCF/HRS recommendations for the standardization and interpretation of the electrocardiogram: Part VI: Acute ischemia/infarction". Circulation.
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Cerqueira MD, Weissman NJ, Dilsizian V, et al. (2002). "Standardized myocardial segmentation and nomenclature for tomographic imaging of the heart". Circulation.
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Thygesen K, Alpert JS, Jaffe AS, et al. (2019). "Fourth Universal Definition of Myocardial Infarction (2018)". Eur Heart J.