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| Date post: | 01-Jul-2015 |
| Category: |
Education |
| Upload: | hossein-khorrami |
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Electrocardiogram
By H.Khorrami Ph.D.
http://khorrami1962.spaces.live.com
CARDIAC CYCLE
Atr
ial S
ysto
le
Mitral Closes
Iso
volu
mic
co
ntr
act.
Aortic opens
S1
Rap
id E
ject
ion
Red
uce
d E
ject
ion
Iso
volu
mic
Rel
ax.
Aortic closes
Rap
id V
entr
icu
lar
Filli
ng
Mitral opens
S2
Red
uce
d V
entr
icu
lar
Fi
llin
g Atr
ial S
ysto
le
LEFT VENTRICULAR PRESSURE/VOLUME P/V LOOP
LEFT
VEN
TRIC
ULA
R P
RES
SUR
E (m
mH
g)
LEFT VENTRICULAR VOLUME (ml)
A B C
D
E F
100 150 50 0
120
40
80
PRESSURE/VOLUME RELATIONSHIPS UNDER DIFFERENT CONDITIONS
PRELOAD AFTERLOAD CONTRACTILITY
