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Is it normal
analyse_media
Reading File
No, this ECG is not normal. The machine itself flags it as "Moderately Abnormal ECG." The key findings are low voltage in the chest leads and a possible old MI pattern. Let me give you a full breakdown.
ECG Analysis
Patient: Age 10 years old, Sex: Male (based on the header)
Date: 2026-08-13, 01:45:28
Heart Rate: 90 bpm
Intervals:
- PR interval: ~160 ms (normal)
- QRS duration: ~94 ms (normal)
- QTc: ~447 ms (borderline prolonged - upper limit of normal is ~440-450 ms)
Machine Analysis Report Findings
The ECG machine (Bionet ECG3000) reported:
- Normal Sinus Rhythm - the rhythm itself is regular and sinus in origin
- Normal Axis
- Low Voltage (Chest Leads) - reduced QRS amplitude in the precordial (V1-V6) leads
- "Old MI may be incorrect due to low voltage" - the machine flagged a possible old myocardial infarction pattern, but correctly noted this interpretation may be unreliable because of the low voltage
- Overall: Moderately Abnormal ECG - requires physician confirmation
What Does This Mean?
Low Voltage in Chest Leads
Low QRS voltage (amplitude <10 mm in limb leads or <5 mm in precordial leads) has several causes:
| Category | Examples |
|---|---|
| Cardiac | Cardiomyopathy (dilated or restrictive), prior myocardial infarction, cardiac amyloidosis |
| Pericardial | Pericardial effusion (fluid around the heart dampens the signal) |
| Pulmonary | COPD, emphysema, hyperinflated lungs |
| Metabolic | Hypothyroidism, obesity |
| Other | Anasarca (generalized edema), incorrect lead placement |
For a 10-Year-Old
Low voltage in a child is particularly worth investigating. The most common concerning causes in pediatrics include:
- Pericardial effusion (can be due to infection, autoimmune, or idiopathic)
- Myocarditis (viral or inflammatory)
- Dilated cardiomyopathy
- Hypothyroidism
What Should Be Done?
This ECG requires physician evaluation - the machine itself says "to be finally confirmed by physician."
Recommended next steps:
- Echocardiogram (Echo) - most important next test; rules out pericardial effusion and cardiomyopathy
- Thyroid function tests - to rule out hypothyroidism
- Clinical correlation - symptoms like shortness of breath, chest pain, fatigue, or exercise intolerance are important
- Repeat ECG with verified lead placement (to rule out technical artifact)
Bottom line: This ECG shows low voltage in the chest leads and a borderline QTc - these are not normal findings, especially in a 10-year-old. The rhythm is normal sinus, but the overall tracing is flagged as moderately abnormal. Please have a pediatric cardiologist or physician review this in person as soon as possible, along with an echocardiogram.
⚠️ This analysis is for educational purposes only and is not a substitute for professional medical evaluation.
It is 43 years female don't read ecg interpretation analysis by your self
Finding Sources
Reading File
ECG Report - What the Machine Says (43F)
The printed machine report on her ECG states:
- Normal Sinus Rhythm
- Normal Axis
- Low Voltage (Chest Leads)
- "Old MI may be incorrect due to low voltage"
- Moderately Abnormal ECG - to be finally confirmed by physician
What Low Voltage in Chest Leads Means
The ECG is not normal because of the low voltage finding. According to Guyton & Hall's Medical Physiology, low QRS voltage in the chest leads has these main causes:
| Cause | Mechanism |
|---|---|
| Pericardial effusion | Fluid around the heart "short-circuits" the electrical signal before it reaches the chest leads |
| Pleural effusion | Similar short-circuiting effect from fluid around the lungs |
| Cardiomyopathy / old infarcts | Reduced muscle mass generates less electrical signal |
| Cardiac amyloidosis | Abnormal protein infiltration reduces voltages |
| Pulmonary emphysema | Air-filled lungs insulate the heart from chest electrodes |
| Obesity | Increased body tissue dampens signal at the skin surface |
| Hypothyroidism | Metabolic cause of generalized low voltage |
Key Point About the "Old MI" Flag
The machine noted that the old MI pattern it detected may be a false reading - caused by the low voltage distorting the waveform shapes, not a true infarction. A physician needs to decide whether that pattern is real or artifact.
What She Needs Next
- Echocardiogram - the single most important next step; will immediately show if there is pericardial effusion, cardiomyopathy, or structural disease
- Clinical evaluation - symptoms like breathlessness, chest pain, leg swelling, or fatigue need to be assessed
- Thyroid function test - hypothyroidism is a reversible cause of low voltage
- Physician review - the machine explicitly states this needs to be confirmed by a physician
⚠️ This is not a normal ECG. Please have it reviewed by a doctor promptly, especially to rule out pericardial effusion.
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