analyse_media
ECG Interpretation - Pre-operative ECG (Noorbagh, Female, 13-07-2026)
Patient Details
- Patient: Noorbagh, Female
- Date: 13-07-2026, 05:26:14 PM
- Context: Pre-operative screening ECG
- Settings: 25 mm/s paper speed, 10 mm/mV, AC50 filter
Findings
| Parameter | Result |
|---|---|
| Rhythm | Normal Sinus Rhythm |
| Rate | 93 bpm (machine confirmed) |
| Axis | Normal (~+60° to +75°) |
| PR Interval | ~140 ms (normal: 120-200 ms) |
| QRS Duration | ~80-90 ms (normal: <120 ms) |
| QTc | Within normal limits (<450 ms for female) |
Detailed Analysis
Rhythm & Rate: Regular R-R intervals with upright P waves preceding every QRS in leads I, II, aVF, and inverted in aVR - consistent with normal sinus rhythm at 93 bpm.
P Waves: Normal morphology, amplitude <2.5 mm, duration <0.12 s. No evidence of atrial enlargement (no P mitrale or P pulmonale).
QRS Complexes: Normal duration with no bundle branch block pattern. R-wave progression is normal across precordial leads with transition at V3-V4. No voltage criteria for left or right ventricular hypertrophy.
ST Segments: Isoelectric in all 12 leads. No ST elevation (no STEMI pattern) and no ST depression (no subendocardial ischemia).
T Waves: Normal - upright in leads with upright QRS (I, II, V3-V6), inverted in aVR. No pathological inversions or hyperacute changes.
Conclusion
Normal 12-lead ECG.
This pre-operative ECG shows no acute abnormalities, no conduction defects, no ischemic changes, and no arrhythmias. From a cardiac electrical standpoint, there are no ECG-based contraindications to proceeding with surgery.
Clinical note: ECG interpretation should always be correlated with the patient's clinical history, symptoms, and physical examination. This does not substitute for formal medical review by the treating physician or anaesthesiologist.
IMG_8178.png
??
analyse_media
⚠️ URGENT ECG - This is NOT Normal
This ECG is strikingly different from the previous one and shows signs of an acute cardiac emergency.
Systematic Interpretation
| Parameter | Finding |
|---|---|
| Rhythm | Sinus rhythm |
| Rate | ~60-65 bpm |
| Axis | Normal (+60° to +90°) |
| PR Interval | ~160 ms (normal) |
| QRS Duration | Normal (<100 ms) |
Critical Findings
1. Hyperacute T Waves (V2, V3, V4)
Massive, tall, symmetric, broad-based T waves in V2-V4 - the T wave amplitude is disproportionately larger than the QRS complexes. This is a hallmark of the very early (hyperacute) phase of myocardial infarction.
2. ST Elevation (V2, V3, V4)
Mild-to-moderate ST elevation at the J-point in V2-V4, consistent with an anterior STEMI pattern.
3. Pathological Q Waves / QS pattern (V1-V3)
Deep QS or rS complexes indicating loss of anterior septal forces - suggesting established or evolving myocardial necrosis in the anteroseptal territory.
4. Reciprocal Changes
Subtle ST depression and T-wave flattening in inferior leads (II, III, aVF) - these mirror changes further support the anterior injury pattern.
Interpretation
🚨 Acute Anteroseptal STEMI - Hyperacute Phase
Culprit vessel: Left Anterior Descending (LAD) artery - likely proximal occlusion given the extent of V2-V4 involvement.
Immediate Action Required
- Call for emergency help immediately - activate the cardiac catheterization lab
- 12-lead ECG confirmation + continuous monitoring
- Aspirin 300 mg + P2Y12 inhibitor (e.g. ticagrelor/clopidogrel) loading
- Anticoagulation (heparin/enoxaparin)
- Primary PCI (percutaneous coronary intervention) within 90 minutes of first medical contact - this is the target for STEMI reperfusion
- IV access, oxygen if SpO₂ <90%, analgesia, continuous BP monitoring
This ECG requires immediate physician review and emergency cardiology activation. Do not delay.
Compared to the previous ECG (Noorbagh, pre-op): That ECG was entirely normal. This second ECG shows acute ischemic changes that represent a medical emergency and is a completely different clinical picture.
Dosage of these drugs for initial treatment?
Reading File
Finding Sources
Finding Sources
Finding Sources
Reading File
Reading File
Here are the initial STEMI drug dosages, sourced directly from The Washington Manual of Medical Therapeutics and Rosen's Emergency Medicine:
Acute STEMI - Initial Drug Dosages
1. Antiplatelet Therapy (DAPT - Dual Antiplatelet Therapy)
| Drug | Loading Dose | Maintenance Dose | Notes |
|---|---|---|---|
| Aspirin (ASA) | 162-325 mg (chewed/crushed, non-enteric coated) | 75-100 mg/day | Give immediately; chewing ensures rapid absorption |
| Ticagrelor (preferred) | 180 mg PO | 90 mg twice daily | ASA dose should not exceed 100 mg/day when used with ticagrelor; mortality benefit over clopidogrel |
| Clopidogrel (alternative) | 600 mg PO | 75 mg/day | Use if ticagrelor unavailable or contraindicated; caution in elderly |
| Prasugrel (PCI only) | 60 mg PO | 10 mg/day | Do NOT use if age >75 yr, weight <60 kg, or history of stroke/TIA |
2. Anticoagulation
| Drug | Dose | Notes |
|---|---|---|
| Unfractionated Heparin (UFH) (standard) | 60 units/kg IV bolus (max 4,000 units), then 12 units/kg/h | Most widely used; easily reversed; monitor aPTT |
| Enoxaparin (LMWH) | 30 mg IV bolus, then 1 mg/kg SC q12h | Age >75 yr: no bolus, give 0.75 mg/kg SC; reduce dose if creatinine >2 mg/dL |
| Bivalirudin (PCI only) | 0.75 mg/kg IV bolus, then 1.75 mg/kg/h | Preferred if HIT history; not studied with thrombolytics |
| Fondaparinux | 2.5 mg IV bolus, then 2.5 mg SC daily | Only if thrombolysis (not PCI - increases catheter thrombosis risk) |
3. Other Initial Drugs
| Drug | Dose | Notes |
|---|---|---|
| Nitroglycerin | 0.4 mg SL q5 min x3, then 10-200 mcg/min IV | Do NOT give if hypotensive, or if patient took phosphodiesterase inhibitor in last 24-48 hrs |
| Morphine | 2-4 mg IV q5-15 min | Use cautiously - associated with worse outcomes in some ACS data |
| Oxygen | If SpO₂ <90% | Avoid routine oxygen in normoxic patients |
| Beta-blocker (e.g. metoprolol) | 25-50 mg PO within 24 hrs | Contraindicated if bradycardia, hypotension, heart block, or acute HF |
Quick Priority Order at First Contact
- Aspirin 300 mg - chew immediately
- Ticagrelor 180 mg (or clopidogrel 600 mg) - load immediately
- UFH IV bolus - before/during PCI
- Activate cath lab for primary PCI
Note: Drug choices and doses may need adjustment based on patient weight, renal function, age, bleeding risk, and whether PCI or thrombolysis is the reperfusion strategy. These are standard adult doses per current guidelines. Always confirm with the treating cardiologist.
- The Washington Manual of Medical Therapeutics, Table 4-17 | Rosen's Emergency Medicine
This is a shared conversation. Sign in to Orris to start your own chat.