Page 197 - Color Atlas Of Pathophysiology (S Silbernagl Et Al, Thieme 2000)

A. Normal Stimulus Formation with Normal Transmission

S C R
Atrium
Sinus
C
Lead II 1 s f= 87/min Distance from sinus node AV node S Ventricles R I
1 Normal sinus rhythm R

Excitation of Cardiac Rhythm
S= Spread of (after Trautwein)
excitation P Q S T
Lead II 1 s f= 140/min C= Complete
excitation
2 Sinus tachycardia R= Repolarization 0 0.1 0.2 0.3 0.4 s
B. Ectopic Origin of Stimulus (1–5) and Abnormal Conduction (5) Abnormalities
Sinus Retrograde Sinus
ES excitation
of atrium and
R R R ES R R sinus node
Plate 7.6
Lead II
1 Nodal (AV) extrasystole Negative P
with postextrasystolic pause T
QRS
Sinus Sinus
ES ES
Isolated ventricular
excitation

Lead II 1s
2 Interposed ventricular extrasystole QRS P QRS T

ES ES
3 Ventricular tachycardia
after extrasystole f= 100/min f= 205/min
Lead I Ventricular tachycardia

4 Ventricular fibrillation
Lead II
R R R R R R
5 Complete AV block
with idioventricular rhythm P P (P) P P P P P P (partly after Riecker)
Lead II 187
1s P= 75/min R= 45/min

Silbernagl/Lang, Color Atlas of Pathophysiology © 2000 Thieme
All rights reserved. Usage subject to terms and conditions of license.