Date post: | 07-Aug-2015 |
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Health & Medicine |
Upload: | stanley-medical-college-department-of-medicine |
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ECG OF THE WEEKECG OF THE WEEKPROF .Dr .G.ELANGOVAN’S UNIT PROF .Dr .G.ELANGOVAN’S UNIT
D.SUBBURAJD.SUBBURAJ
FINDINGS IN THIS ECG
Rate -200/minRegular rhythmInverted P waves –II,III,AvfQRSD-126 msLeft axis deviationLBBB patternWide complex tachycardiaST, T depression I, aVL
DD FOR WCT• Ventricular tachycardia• SVT with–Aberrant interventricular conduction–Pre excitation–Abnormal base line QRS–Ventricular pacing
VT / SVT WITH ABERRANCY• QRSD>160ms• AV dissociation• Regular R-R • Extreme axis• R on T phenomenon• Fusion, capture beats• Concordance in precordial
leads
• 120-160ms• Conducted P waves• Regular /irregular • Normal except in WPW• Absent • Absent • Abent
Arrythmias in pre excitation
• Regular – mostly AVRT• Wide complex tachycardia
-orthodromic AVRT with aberrancy -antidromic AVRT -atrial arrythmia with antegrade conduction
• Irregular –atrial arrythmias
AVRT
• MC- orthodromic (90%)• Antidromic (5%)• Due to anomalous pathway• PAC -blocked in aberrant pathway-conducted
in AV node-activates ventricle-reenter in to atria through aberrant pathway –retrograde P waves