This episode covers Chapter 79 of Rosen’s Emergency Medicine.
All those funny squigly marks on the ECG confusing you? Us too. Here is some knowledge to help you out.
- What is the blood supply of the following parts of the conduction system: SA node, AV node
- What are the three pathophysiologic mechanisms for dysrhythmias?
- What causes & how does AV nodal reentry tachycardia occur?
- List the classes of antidysrhythmics. Describe their mechanism of action and usual uses, as well as an example of each.
- How does digoxin work as an antidysrhythmic? When is it used?
- List underlying etiologies of sick sinus syndrome.
- What are three ECG presentations of sick sinus syndrome?
- Define 1° heart block. List three causes.
- Differentiate between the two types of 2° heart block with respect to etiology, ECG appearance and management.
- What is ‘high grade’ heart block? How is it managed?
- Describe the difference between AV dissociation & 3° AV block.
- Compare PAC’s to PVC’s.
- Give a differential diagnosis of irregularly irregular tachycardia.
- Define pre-excitation and list the 3 ECG features of classic WPW
- Explain the concept of antidromic and orthodromic conduction with respect to WPW. Which pts with WPW should not receive AV node blockers? Why?
- List 10 causes of PVC and VT
- How do you differentiate b/n SVT with aberrant conduction & ventricular tachycardia?
- List 10 causes of atrial fibrillation.
- Describe the management of AFIB, including a discussion about the CHADS2 score and long term stroke risk.
- What is Brugada syndrome? What is the management?
- List 8 side effects of Amiodarone.
- Describe features that favor VT over SVT.
- Describe the Brugada approach to the Dx of VT
- List Causes of acquired pause-dependent QT prolongation causing Torsades & List causes of adrenergic dependent TdP
- Describe the treatment of pause dependent TdP
- Define PSVT and describe management
- What’s Ashman’s phenomenon?