ecg: narrow complex tachycardia
TRANSCRIPT
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ECG OF THE WEEK
By: Dr. Swathi Prof Dr. Gowrishankar’s unit
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CASE 1•A 55 yr old male came with history of
palpitations for 1 day no h/o HTN/DM/CAD Pt was hemodynamically stable and systemic examn was unremarkable His ecg was taken…
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ECG 1
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CASE 2•A 60yr old male presented with
palpitations lasting for 3hrs h/o similar episodes twice in the past
which terminated spontaneously with restNo h/o HTN/DM/CAD
On examination: PR-130/min CVS/ RS-WNL
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ECG 2
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INTERPRETATION ECG 1•P wave rate-320/sec•QRS rate- 150/sec, R-R interval- irregular•QRS axis- normal•QRS duration-80 ms•Flutter ‘F’ waves seen in lead II, III ,aVF &
V1.
V1 F waves
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NARROW COMPLEX TACHYCARDIA
ATRIAL FLUTTER WITH VARIABLE
BLOCK
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After inj verapamil 10mg…
‘F’ waves
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ECG 2•Rate-172/min•QRS duration- 100ms•Pseudo r’ seen in lead V1 & pseudo S seen
in inferior leads•Occasional bizarre QRS complexes seen•RP interval- 280ms•PR interval- 60ms
Pseudo r’
V1
II
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NARROW COMPLEX TACHYCARDIA
AVNRT With phasic aberrant ventricular
conduction
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After inj adenosine 6mg…
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After reversion……
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APPROACH TO NARROW COMPLEX
TACHYCARDIAS
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