ECG Case 093

This ECG is from a 12 day old boy.

ECG Case 093b LITFL Top 100 EKG

Describe and interpret this ECG

ECG ANSWER and INTERPRETATION

NOTE:

Rate:

  • ~310
  • As 50 mm/s Rate = number of big squares between R-R complex divided into 600 (or)
  • As 50 mm/s Rate = number of small squares between R-R complex divided into 3000

Rhythm:

  • Regular
  • Nil P Waves Visible

Axis:

  • RAD (105 deg)

Intervals:

  • PR – Nil p waves visible
  • QRS – Narrow (40ms)
  • QT – 140ms

Additional/Segment:

  • Incomplete precordial Leads Limit Interpretation

Interpretation:

  • Narrow Complex Tachycardia / SVT

Causes

  • ~50% of Paediatric SVTs have no underlying heart disease
  • Can be secondary to fever & drugs
  • ~25% of Paediatric SVTs have congenital heart disease
  • ~25% of Paediatric SVTs have WPW

Below is an ECG taken on the same patient at standard calibration (25mm/s)


FURTHER READING

TOP 150 ECG SERIES



Emergency Medicine Specialist MBChB FRCEM FACEM. Medical Education, Cardiology and Web Based Resources | @jjlarkin78 | LinkedIn |

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