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ECG library

Left ventricular hypertrophy

core

A 59-year-old with years of untreated hypertension.

25 mm/s · 10 mm/mV · synthetic tracing
100%
IIIIIIaVRaVLaVFV1V2V3V4V5V6
II (rhythm)
Calipers:2000 ms50.0 small boxes30 bpm if R-RDrag the orange markers. One small box = 40 ms.

Key findings

  • Voltage criteria
  • Lateral strain pattern

Learning points

  • Voltage criteria are specific but insensitive; a normal-voltage ECG excludes little.
  • Strain-pattern T inversion mimics ischemia; compare with old tracings before diagnosing an event.

Connected