Elektro Cardio Graphy
How voltage is generated?
Nodes and conduction system
Cardiac Impulse Generation
and Conduction
Wave P – atrial depolarisation
QRS Complex – ventricular
Depolarisation
Wave T – ventricular repolarisation
Einthoven’s triangle
Vector loop
video
Electric heart axis
Infarction:
ST segment
elevation
Atrial Flutter
Ventricular Fibrilation
Ventricular arrest
Infarction of Myokard
• coronary vessels blocked
• limited oxygen supply
• necrosis are irreversible
In the picture, we can see a
transversal cross-section of the
heart (right and left ventricles are
visible). The ventricular
myocardium is affected by
infarction. Extensive tissue
necrosis appears as lighter areas
in the muscle. This is an
extensive anterior scar; the entire
wall is affected.
IM accute
IM chronic
Experiment
Normal record, note:
Pulse rate
Arrythmia?
Extrasystols?
Shape and length of QRS complex
Length of PQ interval
Electrical axis