L7: Arrhythmia - Pt 4

Question 1

Introduction to electric Pathway in the Heart

Answer 1

Question 2

Classification of bradyarrhythmia

Answer 2

• SAN Dysfunction
• AVN Dysfunction
• Intraventricular Conduction disturbanc

Question 3

Natural Pacemakers in Heart

Answer 3

• SAN is the principal pacemaker of the heart with normal pacing rate at 60-100 BPM
• AVN → 40-60 BPM
• Ventricular myocytes → 20-40 BPM

Question 4

Etiology of Sinus Bradycardia

Answer 4

Question 5

Etiology of Sinus Bradycardia

• Physiological

Answer 5

sleep & atheletes

Question 6

Etiology of Sinus Bradycardia

• Pathological

Answer 6

Question 7

CP of Sinus Bradycardia

Answer 7

• Fatigability
• Syncope
• Hemodynamic instability

Question 8

INVx for Sinus Bradycardia

Answer 8

Question 9

TTT of Sinus Bradycardia

Answer 9

Question 10

Etiology of Sick Sinus Syndrome

Answer 10

Question 11

Incidence of Sick Sinus Syndrome

Answer 11

common in elderly

Question 12

Subtypes of Sick Sinus Syndrome

Answer 12

Question 13

CP of Sick Sinus Syndrome

Answer 13

Question 14

INVx for Sick Sinus Syndrome

Answer 14

Question 15

TTT of Sick Sinus Syndrome

Answer 15

Question 16

Def of TachyBrady Syndrome

Answer 16

Question 17

Cause of TachyBrady Syndrome

Answer 17

Fibrosis that affect SAN affect also atrial tissue

Question 18

Def of Chronotropic Incompetence

Answer 18

Failure of physiological increase of heart rate in response to sympathetic stimulation (during exercise)

Question 19

Etiology of AVN Dysfunction

Answer 19

Question 20

Dx of Chronotropic Incompetence

Answer 20

exercise ECG

Question 21

Def of AVN Dysfunction

Answer 21

Abnormalities inámpulse transmission to the ventricles due to diseased AVN

Question 22

CP of AVN Dysfunction

Answer 22

Question 23

INVx for AVN Dysfunction

Answer 23

Question 24

Management of AVN Dysfunction

Answer 24

Question 25

Classification of **AVN Dysfunction**

Answer 25

Question 26

ECG in **1st Degree HB**

Answer 26

Question 27

CP of **1st Degree HB**

Answer 27

usually asymptomatic, but may present with HF symptoms

Question 28

TTT of **1st Degree HB**

Answer 28

don't require TTT

Question 29

Types of **2nd Degree HB**

Question 30

ECG in **Mobitz I 2nd Degree HB**

Answer 30

Question 31

Rhythm in **Mobitz I 2nd Degree HB**

Answer 31

Question 32

ECG in **Mobitz II 2nd Degree HB**

Answer 32

Question 33

Rhythm in **Mobitz II 2nd Degree HB**

Answer 33

Question 34

CP of **Mobitz II 2nd Degree HB**

Answer 34

usually symptomatic and more dangerous than Mobitz

Question 35

Def of **3rd Degree HB**

Answer 35

- complete dissociation between atrium and ventricles - NO AV conduction

Question 36

CP of **3rd Degree HB**

Answer 36

Usually symptomatic

Question 37

TTT of **3rd Degree HB**

Answer 37

require permanent pacing after exclusion of reversible causes

Question 38

Pathophysiology of **3rd Degree HB**

Answer 38

Question 39

Types of **IVCD**

Answer 39

Question 40

ECG in **IVCD**

Answer 40

Question 41

How the heart can respond to bradycardia?

Answer 41

Question 42

Junctional rhythm with hidden 'P' waves

Answer 42

Question 43

Junctional rhythm with inverted 'P' waves before QRS

Answer 43

Question 44

Junctional rhythm with 'P' waves after QRS

Answer 44

Question 45

Idioventricular Rhythm

Answer 45

Question 46

Def of **Artificial Pacemaker**

Answer 46

Question 47

Types of **Artificial Pacemaker**

Answer 47

Question 48

Indications of **Artificial Pacemaker**

Answer 48

Question 49

Indications of **Artificial Pacemaker** - Temporary

Answer 49

Question 50

Indications of **Artificial Pacemaker** - Permenant

Answer 50