Reading File
analyse_media
Here is a full systematic interpretation of this 12-lead ECG:
ECG Report - Duraibaba, 50/Male | 19 Jul 2026, 09:37 AM
Recorded Parameters (from printout)
| Parameter | Value |
|---|---|
| Heart Rate (AR/VR) | 84 bpm |
| PR Interval | 150 ms (normal) |
| QRS Duration | 82 ms (narrow, normal) |
| QT Interval | 364 ms |
| QTc (Bazett) | 431 ms (upper limit of normal; borderline) |
| Paper speed | 25 mm/s |
| Axis (P-R-T) | 61° / -5° / 14° |
Systematic Analysis
1. Rate & Rhythm
- Rate: 84 bpm - normal
- Rhythm: Normal Sinus Rhythm - P waves are upright in leads I, II, aVF; inverted in aVR; every P wave is followed by a QRS with a constant PR interval
2. Axis
- QRS axis: approximately -5°
- The machine calculates -5°, which is within normal range (normal: -30° to +90°)
- However, the morphology pattern (qR in I/aVL, rS in II/III/aVF with deeper S in III than II) raises suspicion for Left Axis Deviation (LAD) - this should be correlated clinically
3. P Waves
- Normal morphology, upright in I, II, V4-V6; inverted in aVR
- Normal duration and amplitude
- No evidence of atrial enlargement
4. PR Interval - 150 ms
- Normal (normal: 120-200 ms)
- No first-degree AV block
5. QRS Complex
- Duration 82 ms - narrow, no bundle branch block
- Lead I and aVL: qR pattern (small q followed by tall R wave)
- Leads II, III, aVF: rS pattern (small r, deep S)
- Precordial leads (V1-V6): Normal R-wave progression; transition occurs around V3-V4
6. ST Segments
- No ST elevation or depression in any lead
- ST segments are isoelectric
7. T Waves
- T waves appear upright and concordant in lateral (I, aVL, V4-V6) and inferior leads
- No T-wave inversion
8. QTc - 431 ms
- Borderline prolonged (normal < 440 ms in men by most guidelines, < 450 ms by others)
- Not definitively prolonged, but worth monitoring, especially if patient is on QT-prolonging drugs
Interpretation
Normal Sinus Rhythm at 84 bpm. No acute ischemic changes. No conduction abnormality. QTc borderline at 431 ms.
The most notable finding is the limb lead axis pattern - the rS morphology in inferior leads (II, III, aVF) combined with qR in lead I and aVL is consistent with a possible left anterior fascicular block (LAFB) / hemi-block pattern, though the machine-calculated axis of -5° does not meet strict LAD criteria (which requires axis more negative than -30°). If the true axis is more leftward than calculated, LAFB should be considered.
Clinical Correlation Needed
- LAFB - reassess axis on clinical grounds if symptoms are present
- QTc 431 ms - review medication list for QT-prolonging drugs (antiarrhythmics, antiemetics, antipsychotics, fluoroquinolones, azithromycin, etc.)
- No evidence of: ACS, LVH, RVH, bundle branch block, pre-excitation, atrial enlargement
Note: This ECG analysis is for clinical support only and must be interpreted in the context of the patient's history, symptoms, and other investigations by a qualified clinician.
Is this normal ecg
Based on my detailed analysis of this ECG, here is a direct answer:
Is This ECG Normal?
Mostly normal, but not completely normal.
Here's a quick summary of what is normal vs. what needs attention:
✅ Normal Findings
| Feature | Finding |
|---|---|
| Heart rate | 84 bpm - normal |
| Rhythm | Normal Sinus Rhythm |
| PR interval | 150 ms - normal |
| QRS duration | 82 ms - narrow, normal |
| ST segments | No elevation or depression |
| T waves | Normal, no inversion |
| R-wave progression | Normal in chest leads |
| No ischemia | No heart attack pattern |
| No BBB | No bundle branch block |
⚠️ Abnormal / Borderline Findings
1. Left Axis Deviation (LAD) pattern
- Leads I and aVL show a qR pattern (tall R wave)
- Leads II, III, aVF show rS pattern (deep S waves)
- This suggests the electrical axis is shifted to the left
- This can indicate Left Anterior Fascicular Block (LAFB) - a minor conduction defect in the left side of the heart
- LAFB is not dangerous by itself, but it is not a normal finding
2. Borderline QTc - 431 ms
- The QTc is at the upper limit of normal
- Should be monitored, especially if on any medications
Bottom Line
This ECG is not completely normal - it shows a left axis deviation pattern, possibly Left Anterior Fascicular Block (LAFB). There are no signs of a heart attack, arrhythmia, or dangerous abnormality, but this patient should be evaluated by a cardiologist to:
- Confirm whether LAFB is present
- Check for any underlying structural heart disease
- Review medication list for QT-prolonging drugs
- Consider an echocardiogram if clinically warranted
This is not a substitute for evaluation by a qualified physician.
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