cardiology emergency-medicine
Lead aVR Sign for Left Main / Proximal LAD Occlusion
ST elevation in lead aVR (especially ≥1 mm) with diffuse ST depression in ≥6 leads is a high-risk ECG pattern suggesting left main coronary artery or proximal LAD occlusion. Associated with high mortality.
References
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
- Fridericia Corrected QT Interval (QTcF) · ECG Interpretation
- Modified Sgarbossa's Criteria (Smith Modification) for MI in LBBB · ECG Interpretation
- Brugada Phenocopy Score · ECG Interpretation
- Wellens Syndrome ECG Pattern · ECG Interpretation
- de Winter ECG Pattern for Proximal LAD Occlusion · ECG Interpretation
Drugs
- Palivizumab · RSV Prophylaxis — Monthly Monoclonal Antibody (High-Risk Infants)
- Labetalol (IV — Hypertensive Emergency) · Combined Alpha-1 and Beta-Adrenergic Blocker
- Hydroxocobalamin (High-Dose — Cyanide Antidote) · Cyanide Antidote (Vitamin B12 Precursor at High Dose)
- Alteplase (STEMI Thrombolysis) · Thrombolytic / STEMI
- Streptokinase (STEMI Thrombolysis) · Thrombolytic / STEMI
- Labetalol (IV — Hypertensive Emergency) · Combined alpha and beta blocker
Pathways
- Acute Heart Failure · ESC 2021 Heart Failure Guidelines; NICE NG106
- NSTEMI / Unstable Angina · ESC 2020 NSTEMI Guidelines; NICE NG185
- New-Onset Atrial Fibrillation · ESC 2020 AF Guidelines; NICE NG196
- Hypertensive Emergency · ESC/ESH 2018 Hypertension Guidelines; NICE NG136
- Bradycardia Management · Resuscitation Council UK ABCDE; ESC 2021 Pacing Guidelines
- Ventricular Tachycardia / Fibrillation · Resuscitation Council UK ACLS; ESC 2022 Ventricular Arrhythmia Guidelines
Decision support only — verify against MDCalc, NICE, or your local guideline before clinical use.