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Understanding the Electrocardiogram In Health & Disease
10.0.0 The Electrocardiogram in the Emergency Department-Introduction
10.3.0 Palpitations (frame 31)

10.3.2 (33)

This ECG is from the same patient. It was recorded a few minute later during gentle carotid sinus massage and now there is variable AV block. Note that the flutter waves are much easier to identify when there is 3:1 and 4:1AV block than when there is 2:1 block. The use of carotid sinus massage to increase AV block is an important diagnostic and therapeutic maneuver in patients with rapid supraventricular tachycardias.

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10.3.1 (32)
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10.3.3 (34)

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Introduction to First Edition
1.0.0 Generation of the ECG
2.0.0 The Normal Electrocardiogram
3.0.0 Inter and intra-ventricular Conduction Disturbances
4.0.0 Ventricular Hypertrophy
5.0.0 ELECTROLYTE ABNORMALITIES, DRUG EFFECTS AND THE LONG QT SYNDROMES
6.0.0 Ischemia and Infarction - Introduction (frame i and ii)
7.0.0 Tachycardias- Introduction
8.0.0 The Bradycardias frame i-introduction
9.0.0 The ECG of Heart Murmurs-introduction
10.0.0 The Electrocardiogram in the Emergency Department-Introduction

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