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February 2010 EKG Case A 55 year old man presents to the ED after a syncopal episode. What does the EKG show? Rate: variable from 50-100 Rhythm: second degree AV block type II Axis: left PR: constant PR with dropped QRS every 3rd beat ST: T inversion in I, AVL, QRS: 0.08-0.12 EKG Diagnosis: second degree AV block Mobitz II Clinical Diagnosis: syncope secondary to 2nd degree heart block What is the definitive treatment for this finding? Pacemaker
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