Tag: ECG
Acute Pericarditis
Warning:
• Any pericarditis may be complicated by tamponade.
• Viral acute pericarditis may recur in the short term.
• Link to aspirin or anti-inflammatory oral gastric...
Stable Angina
Warning:
• Angina is only one manifestation of coronary insufficiency (which may itself be the cause of ischemic heart failure, myocardial infarction, arrhythmia supraventricular and...
Electrocardiogram – ECG
Speed = 25mm / sec => 1cm = 0.4 sec (x-axis)
Amplitude of 1 cm / mV => 1cm = 1mV (ordinate)
Normal values:
P wave ->...
Pericarditis ECG
Developments in 4 stages:
Stage I:
Subepicardial injury: ST segment elevation in upper concavity, early, fleeting, not including the T wave, positive.
Stage II (2nd week):
ST return...
Myocardial Infarction ECG
* The non-Q wave infarction: IDM Nontransmural, has no Q-wave Contains intense as ST depression or T wave ischemia (sustainable). With increase in cardiac...
Electrolyte Disorders ECG
Dyskaliémies:
Hypokalemia (<3.5 meq / l):
* Increased wave U (nonspecific sign)
* Flattening and negativity of the T wave (T + U draws a lying S)
*...
Digitalis ECG
- Also called cardiac glycosides
- Digitalis are in fact only small positive inotropic with some peripheral vascular effects.
- At the level of myocardial cell,...
Drug Actions ECG
1- cardiac drugs:
A- Digitalis (impregnation):
* PR Elongation
* ST cup Aspect
* Flattening or negativity of the T wave
* A moderately increased amplitude U
* QT shortening
B-...
Atrioventricular block ECG
AVB I:
It results in a prolongation of the PR interval (> 0.20 sec)
AVB II:
- Mobitz 1: Luciani-Wenckebach rate (progressive enlargement of the space PR...
ECG branch block
1- complete left bundle branch block:
- The electrical impulses will go from right to left
- QRS> 0.12 s (incomplete block -> 0.10 to 0.12)
-...
