EKG Conference Review for IM boards - Dr. Stultzdrstultz.com/Presentations/2006 05 24 EKG...
Transcript of EKG Conference Review for IM boards - Dr. Stultzdrstultz.com/Presentations/2006 05 24 EKG...
![Page 1: EKG Conference Review for IM boards - Dr. Stultzdrstultz.com/Presentations/2006 05 24 EKG Conference.pdf · 2006-06-16 · Review for IM boards David Stultz, MD Cardiology Fellow,](https://reader031.fdocuments.in/reader031/viewer/2022011817/5e7c4aef6b7096095f0c9590/html5/thumbnails/1.jpg)
© 2003-2006, David Stultz, MD
EKG ConferenceReview for IM boards
David Stultz, MDCardiology Fellow, PGY 6
May 24, 2006
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© 2003-2006, David Stultz, MD
Case #1
• Patient presents with syncope
• Does this EKG warrant a pacemaker?
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© 2003-2006, David Stultz, MD
3rd degree heart block
Pacemaker indicated!
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© 2003-2006, David Stultz, MD
1st degree AVB
LBBB
No pacer indicated
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© 2003-2006, David Stultz, MD 2nd degree type 1 (Wenkebach) AV block
RBBB
LAFB
No pacer
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© 2003-2006, David Stultz, MD
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© 2003-2006, David Stultz, MD Atrial flutter with variable conduction
Left anterior fascicular block
Right bundle branch block
No pacer
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© 2003-2006, David Stultz, MD
Atrial tachycardia with 2:1 conduction
No pacer
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© 2003-2006, David Stultz, MD
3rd degree AV block
Pacemaker indicated!
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© 2003-2006, David Stultz, MD
MAT – Multifocal Atrial Tachycardia
LVH
No pacer
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© 2003-2006, David Stultz, MD
Sinus rhythm
2nd degree type 1 AVB (Wenkebach)
No pacer
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© 2003-2006, David Stultz, MD
Atrial fibrillation, lateral ST-T depression
No pacer
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© 2003-2006, David Stultz, MD
Sinus rhythm, 2:1 AV block, RBBBProbably pacer
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© 2003-2006, David Stultz, MD
Sinus Rhythm3:2 AV block (2nd degree, Wenkebach)PVCLVHNo pacer
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© 2003-2006, David Stultz, MD
Summary of Heart Blocks
• 1st degree AVB – PR>200ms – no pacer• 2nd degree AVB
– Mobitz 1 (Wenkebach) – no pacer– Mobitz 2 – pacemaker
• 3rd degree AVB – pacemaker• Bundle branch blocks do not get a
pacemaker– Isolated RBBB, LBBB, LAFB, LPFB– “Bifascicular” and “Trifascicular” blocks
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© 2003-2006, David Stultz, MD
Chest pain syndromes
• Patient presents with chest pain– For reference, pt had a ‘normal’ EKG 3 weeks ago
• Does this EKG showA. Diagnosis of ST elevation MI – rush to cath labB. Diagnosis of unstable angina/NSTEMI – admit for
cath within 48 hoursC. Etiology of chest pain other than ACSD. No specific findings for chest pain – admit/observe
patient
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© 2003-2006, David Stultz, MD
Sinus rhythm3:1 AV blockAcute inferior injury? Anteroseptal Q’s with injurySTEMI – cath lab
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© 2003-2006, David Stultz, MD
Right Sided EKG
>=1mm ST Elevation in V4 = RV infarction
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© 2003-2006, David Stultz, MD
100% mid RCApatent LAD, Cx
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© 2003-2006, David Stultz, MD
Next EKG
Anterolateral injury patternSTEMI – cath lab
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© 2003-2006, David Stultz, MD
Posterior injury (STEMI)Vs Anterior ischemiaFavors urgent cath lab90% RCA, 90% Cx
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© 2003-2006, David Stultz, MD
Old inferior infarctNo specific findingsAdmit/observe
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© 2003-2006, David Stultz, MD
Old anterior infarctNo specific findingsAdmit/observe
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© 2003-2006, David Stultz, MD
Old inferior infarctAnterolateral ST depressionNSTEMI/UA – admit for cath in next 48h
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© 2003-2006, David Stultz, MD
Left Bundle Branch BlockNew (or presumed New) LBBB with chest pain is STEMI!STEMI – urgent to cath lab
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© 2003-2006, David Stultz, MD
Right Bundle branch block with secondary t wave inversionsRight Axis deviationS1, Q3, T3 patternSuspicious for pulmonary embolism
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© 2003-2006, David Stultz, MD
Sinus bradycardiaRBBB with secondary ST-T changesLAFBLVH1mm ST elevation in V3 onlyNo diagnostic findings of ACSAdmit/observe
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© 2003-2006, David Stultz, MD
PR depression in lead IIPericarditis
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© 2003-2006, David Stultz, MD
Summary of Chest Pain EKG’s• STEMI
– ST elevation of 1mm or more in 2 or more anatomical leads• “convex pattern
– R in lead V1 with flat ST depression V1-V3 = posterior infarction– New left bundle branch block with chest pain
• NSTEMI/UA– ST depression– T wave inversions– T wave flattening
• Pericarditis – diffuse ST elevation with PR depression (esp in lead II)
• Pulmonary embolism – suspect with RBBB and Right Axis
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© 2003-2006, David Stultz, MD
Other high yield EKG’s
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© 2003-2006, David Stultz, MD
35 yo Asymptomatic female
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© 2003-2006, David Stultz, MD
What is your next step in workup?(Boards perspective)
A. Electrophysiologic (EP) study +/- ablationB. Cardiac catheterizationC. Holter moniterD. Tilt TableE. Nothing/reassurance
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© 2003-2006, David Stultz, MD
Atrial FibrillationWPW – wide complex, irregular tachycardiaTreatment??
17 year old with palpitations
Procainamide
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© 2003-2006, David Stultz, MD
49 yo with DM, HTN, ESRD/HD with 2 hours nausea
Hyperkalemia (K+ 9.0)
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© 2003-2006, David Stultz, MD
Polymorphic VTTorsades de Pointes