Title: Local hemodynamic
1Local hemodynamic disorders
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2010.09.28
2review
- Thrombosis and thrombus
- Elements in thrombosis
- Morphology and types of thrombi
- Consequence of thrombi
- Influence of thrombi on human body
??(embolism)
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???? (1)?????? (2)???????
(3)????
4Embolism ??
Embolism is the occlusion or obstruction of a
vessel by an abnormal mass (solid, liquid, or
gaseous) transported from a different site by
the circulation. The abnormal mass is embolus)
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thrombi, fatty droplets, gas, Amniotic fluid,
tumor cells
Types of emboli
5Motional pathway of embolus
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4
crosses embolism
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5
Retrograde embolism
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6(No Transcript)
7???? Thromboembolism
pulmonary thromboembolism
95 originate from deep leg vein thrombi above
the knee
deep leg veins
????? Saddle embolism
8pulmonary thromboembolus
Types and consequence
---Depends on size and numbers
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9pulmonary thromboembolus
10Thromboembolism ????
??????? Systemic thromboembolism
- Origin--Valvular vegetation(????????????????)
- --mural thrombus (????????????,??,??
) - Location Lower extremities(75),brain(10),
- intestines, kidneys, spleen
- Consequence infarct
11Thromboembolism ????
??????? Systemic thromboembolism
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12Fat embolism????
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13Fat embolism????
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15Gas embolism ????
?????????????????????????,?????????,??????(gas
embolism) ???????(air embolism) ??????????????????
?????????????,????(decompression sickness)
16(No Transcript)
17Amniotic fluid embolism ????
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18Bacterial embolism????
19Embolism of tumor cell
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27Infarction ??
- Definition An infarct is an area of ischemic
necrosis caused by occlusion of either the
arterial supply or the venous drainage in a
tissue or an organ.
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28Infarction ??
Causes of infarction
- ????????,?? (99)
- Thrombosis, Embolic occlusion
- ??????
- Vessel compressed
- ????
- Spasm of arteria
29??????? Factors that influence the development of
infarction
??????? Occlusion of the arteries
Also depends
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- Nature of the vascular supply
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- Rate of development of occlusion
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- vulnerability to hypoxia
-
- ??????
- Oxygen content of blood
30Morphology of infarct
1????????????????
organ shape type nature of
infarct kidney spleen lung heart
intestine brain
31Morphology of infarct
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32Morphology of infarct
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33Morphology of infarct
?????--?????,????? ?????--?????,???????
2???????
organ shape nature of infarct color of
infarct kidney Spleen lung Heart intestine
brain
????? coagulative necrosis
????? Liquefactive necrosis
34Morphology of infarct
3?????????????
organ shape nature of infarct color of
infarct kidney Spleen lung heart intestine brain
35Types of infarct
- ????? anemic infarct (white infarct )
- arterial occlusion
- in solid tissue spleen, kidney, heart, brain
Infarct of kidney
36Types of infarct
????? anemic infarct (white infarct )
37Types of infarct
????? hemorrhagic infarct (red infarct)
????
- previously congested
- ????
- in loose tissues lung, intestine
- ????
- with dual circulations lung, small intestine
- ????
- with venous occlusions ovarian torsion
- ?????
38Types of infarct
????? hemorrhagic infarct
39Types of infarct
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40Types of infarct
?????? Hemorrhagic infarct of small intestine
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41????? (septic infarct)
??????? infective endocarditis
42Effect and consequence of infarct
Tissue and organ Size, sites With infection
Effects
43Effect and consequence of infarct
Organization?Scarring Liquefaction
Consequence
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