ECG Interpretation

• Speed: 25 mm/s
• Gain: 10 mm/mV (standard)
• Filter: H50 D 35 Hz
• Machine measurements: P=38ms / QRS=386ms / QT=412ms / QTc=? / Axis readings: 1.74 / 1.10 / 2.85 mV (RV5/SV1 amp)
• Labeled: "Unconfirmed Report" - not yet reviewed by physician

Step-by-Step Analysis

• P waves are visible and appear to precede each QRS complex
• The rhythm appears regular
• Consistent with normal sinus rhythm

• Lead I: positive QRS
• Lead aVF: positive QRS
• This places the axis in the normal quadrant (0 to +90 degrees)

• P waves appear present and upright in leads I and II
• Duration appears normal

• Appears within normal limits (~120-200 ms) - hard to measure precisely at this resolution

• The QRS complexes appear widened - the machine reads QRS = 386 ms - this is markedly prolonged (normal <120 ms)
• Wait - re-reading the header carefully: the numbers listed are P/QRS/T axis and amplitudes, not necessarily durations. The values 386/412 appear to be in the QT/QTc section. Let me re-examine:
  • The header reads: P: 38 ms | QRS: 24 ms? / 9 ms? | 1.74 / 1.10 / 2.85 mV
  • The 386 and 412 values likely represent QT = 386 ms and QTc = 412 ms

• Leads V4-V6: Large, tall R waves
• Leads V1-V3: Deep S waves
• aVL: Prominent R wave
• RV5/SV1 amplitude = 2.85 mV (28.5 mm) - noted in the header

• The machine reports RV5 amp 1.74 mV + SV1 amp 1.10 mV = 2.84 mV (28.4 mm) - just below the classic threshold, but the combined value of 2.85 mV noted may represent voltage approaching the criterion.

• In the lateral leads (V5, V6, I, aVL): there appear to be ST depression and T wave inversion - the classic "strain pattern"
• This is consistent with LV strain / LVH with repolarization abnormality

• QT ~386 ms, QTc ~412 ms - normal (QTc <440 ms in males, <460 ms in females)

Summary / Impression

Primary Interpretation: Left Ventricular Hypertrophy (LVH) with Strain Pattern

1. Increased precordial voltage (RV5+SV1 approaching/meeting voltage criteria)
2. ST depression and T-wave inversion in lateral leads (I, aVL, V5, V6)
3. The machine's own amplitude measurements (RV5/SV1 = 1.74/1.10 mV, combined 2.85 mV)

• Hypertension (most common cause)
• Aortic stenosis
• Hypertrophic cardiomyopathy
• Aortic regurgitation

Important Disclaimer: This is an automated ECG analysis for educational purposes. The tracing is marked "Unconfirmed Report - Reviewed by: (blank)" on the ECG itself. A qualified physician or cardiologist must review the original tracing before any clinical decisions are made. If this patient has symptoms (chest pain, dyspnea, syncope, palpitations), urgent clinical evaluation is required.