ECG Interpretation - ISMATH, Female, 29 Years | 31-05-2026

Technical Adequacy

• Two strips recorded 41 seconds apart (01:00:13 PM and 01:00:54 PM) - both showing similar morphology, confirming reproducibility.
• Standard calibration (10 mm/mV), standard paper speed (25 mm/s). Quality is adequate, minor baseline wander present.

Rate & Rhythm

• Heart rate: 86-87 bpm (machine-reported) - consistent with normal sinus rate
• Rhythm: Regular sinus rhythm. P waves are upright in leads I, II, and aVF; inverted in aVR - classic sinus node activation
• P-P and R-R intervals appear uniform - no evidence of arrhythmia

Intervals (estimated at 25 mm/s)

P Wave Analysis

• Upright and normal morphology in I, II, aVF
• No notching in lead II to suggest left atrial abnormality
• No peaked/tall P waves in II/V1 to suggest right atrial overload
• Conclusion: Normal P waves

QRS Complex Analysis

• No pathological Q waves identified in inferior (II, III, aVF) or lateral leads (I, aVL, V4-V6)
• Normal R-wave progression in precordial leads: small r in V1, progressive increase through V3-V5, tall R in V5-V6
• No bundle branch block - QRS is narrow
• No delta waves (ruling out pre-excitation/WPW)
• QRS voltage: Visually, R in aVF/III appears tall; no clear voltage criteria for LVH met on visual inspection, though formal measurement needed
• Conclusion: Normal QRS morphology

ST Segment & T Wave Analysis

• Leads V1-V3: The ST segment appears to have a concave-upward (saddleback/coved) morphology with early takeoff from the J-point, raising the possibility of early repolarization pattern - a common benign finding in young females, especially in the precordial leads
• Leads II, III, aVF (inferior): ST segments appear isoelectric with upright T waves - no inferior ST elevation or depression
• Leads I, aVL: T waves appear flat/low-amplitude in aVL - which can be normal
• V4-V6: T waves upright, no ST depression
• aVR: ST appears reciprocally negative (normal)
• No horizontal or downsloping ST depression in any lead to suggest ischemia
• No definitive ST elevation consistent with STEMI pattern (no hyperacute T waves, no reciprocal changes)

Notable Findings Summary

1. Sinus rhythm at 86-87 bpm - normal rate
2. Normal axis, normal PR, narrow QRS - no conduction abnormality
3. Early repolarization variant - J-point elevation with concave ST morphology in anterior precordial leads (V2-V4), a well-recognized benign variant in young individuals. In the context of a 29-year-old female with no symptoms reported on the strip, this is the most likely interpretation.
4. T-wave morphology in precordial leads shows upright, peaked T waves - consistent with early repolarization physiology
5. No ischemic changes: No ST depression, no hyperacute T waves, no pathological Q waves, no reciprocal changes
6. No conduction disease: No BBB, no AV block, no pre-excitation
7. No arrhythmia: Regular rhythm throughout both strips

Differential for the Precordial ST Pattern

Clinical Recommendation (for your consideration)

• Most likely benign ECG in a 29-year-old female
• If the clinical context is routine/screening with no symptoms: reassure and document as normal variant with early repolarization pattern
• If chest pain, syncope, palpitations, or family history of sudden cardiac death is present: consider Holter, echocardiogram, and exercise stress test to formally exclude structural heart disease or Brugada phenocopy
• Serial ECG correlation and clinical correlation are always appropriate

This interpretation is based on visual analysis of the provided ECG image. Formal computerized measurement and clinical correlation are required for definitive diagnosis. The machine's automated interpretation was not visible in the image.