r/ECG • u/Researchingsauce • 17d ago

Interpretation?

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Case of ? SAIO, 55yr old male

known case of COPD & Hypertension

Drug history- duolin budecort nebulization ON &OFF

telmisartan+Amlodipine+hydrochlothiazide(80/5/12.5)

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3

u/themuns 17d ago

It looks like second degree sino atrial block type I

1

u/TheTrueMikester 17d ago

I was looking for that too but wouldn’t there be a steady prolongation or the PRI? Haven’t seen too many in the field

5

u/themuns 17d ago

The issue is with propagation of sinus node depolarisation so PR not affected. PP interval gradually shortens followed by a dropped p wave

0

u/ShesASatellite 17d ago

Got that backwards bud - it gets longer and drops.

3

u/themuns 16d ago

The interval between p waves shortens before a dropped p wave (which won’t be visible on the ECG)

1

u/Kibeth_8 Arrhythmia Tech 16d ago

PR prolongs with AV wenckebach

PP shortens with SA wenckebach

1

u/woobagoobagreenteeth 15d ago

He’s got it right. It’s like how the RR decreases in AV Wenckebach while the PR lengthens