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ECG Analysis
Patient info (from header): Age: 0 years, Sex: Female, Heart Rate: 109 bpm, 6-channel + 1 rhythm report. Hospital: SHAARAVE HOSP.
Systematic Analysis
1. Rate
- 109 bpm (stated on the printout) - Tachycardia
2. Rhythm
- Regular rhythm with narrow QRS complexes
- P waves are visible preceding each QRS
3. P Waves
- P waves are present in lead II - appear upright
- P waves in aVR are inverted (normal)
- This confirms a supraventricular origin
4. PR Interval
- Appears normal (~120-200 ms range) - no obvious prolongation or shortening visible
5. QRS Complex
- Narrow QRS in all leads - duration appears normal (<120 ms)
- No bundle branch block pattern
6. Axis
- Lead I: positive QRS
- Lead II: positive QRS
- aVF: positive QRS
- Normal axis
7. ST Segments & T Waves
- In the right precordial leads (V1-V3): there are tall, peaked T waves
- In leads V1-V2: there appear to be ST changes - possible early repolarization pattern
- No obvious ST elevation or depression in limb leads
8. Notable Findings
- Tall R wave in V1 - possible right ventricular hypertrophy (RVH) or posterior MI pattern
- The QRS in V1 appears predominantly positive (R > S), which in a pediatric patient can be normal, but should be correlated with age norms
- Sinus tachycardia is the most prominent rhythm finding
Summary of ECG Abnormalities
| Abnormality | Finding |
|---|---|
| Rate | Sinus tachycardia at 109 bpm |
| Rhythm | Regular sinus rhythm, rate elevated |
| Right precordial leads | Tall R in V1, suggestive of RVH or RBBB pattern - needs correlation |
| T waves | Peaked T waves visible in precordial leads |
| ST segments | Possible mild ST changes in right precordial leads |
Clinical Interpretation
Primary Abnormality: Sinus Tachycardia (109 bpm)
Given this is labeled as age "0 years" (neonate/infant), the upper limit of normal heart rate can be up to ~160 bpm at rest in newborns, so 109 bpm may actually be low-normal for a neonate but elevated for an older child or adult.
Additional concerns:
- The morphology in V1 with a tall R wave needs correlation with the patient's exact age - in neonates, a right-dominant pattern (tall R in V1) is physiologically normal due to right ventricular dominance at birth
- If this is an older child, right ventricular hypertrophy (due to pulmonary hypertension, congenital heart disease) should be considered
- T-wave inversions in right precordial leads would be expected in older children; tall upright T waves in V1 in a neonate can suggest RV strain
Bottom line:
- Sinus tachycardia is the definitive abnormality
- The right precordial pattern (tall R in V1) warrants clinical correlation with age, oxygen saturation, and echocardiography to rule out congenital heart disease or pulmonary hypertension
- No evidence of heart block, wide complex tachycardia, or acute ischemic changes
⚠️ This ECG interpretation is for educational purposes. Always correlate with clinical findings, patient age norms, and obtain expert cardiology review for patient management.
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