12-lead ECG recorded 30 seconds later…
DESCRIPTION:
- Ventricular rate 69 (variable; range 38 – 77) bpm
- Sinus rhythm with 2nd degree AV block type I (Mobitz I, Wenckebach)
- Progressive prolongation of the PR interval culminating in a non-conducted P wave
- Large P:QRS grouping; likely to be at least 11:10 or greater!
- Right QRS axis deviation (97°)
- Normal QRS duration 84 ms
- Generalised concave ST elevation in the precordial (V2-6) and limb leads (I, II, III, aVF), with prominent, slightly asymmetrical T waves that are concordant with the main vector of the QRS complexes consistent with early repolarisation phenomenon
- Normal QTc 398 ms and absolute QT interval well below the QT interval nomogram line
INTERPRETATION:
Sinus rhythm with highly variable 2nd degree Mobitz I atrioventricular block (Wenckebach phenomenon)
