Difference between revisions of "Pulmonary Embolism, Thrombosis and Infarction"
Jump to navigation
Jump to search
| Line 12: | Line 12: | ||
***May develop [[Pneumonia Overview|suppurative pneumonia]] -> [[Pulmonary Abscesses|pulmonary abscesses]], [[Arteritis|arteritis]], [[Thrombosis|thrombosis]] | ***May develop [[Pneumonia Overview|suppurative pneumonia]] -> [[Pulmonary Abscesses|pulmonary abscesses]], [[Arteritis|arteritis]], [[Thrombosis|thrombosis]] | ||
*Pulmonary infarcts usually occur when there is embolisation or thrombosis during general circulatory collapse or passive congestion of heart failure | *Pulmonary infarcts usually occur when there is embolisation or thrombosis during general circulatory collapse or passive congestion of heart failure | ||
| − | *Pulmonary thromboembolism is a sequel to in cattle to large emboli from liver abscesses close to the vena cava | + | *[[Pulmonary Thromboembolism|Pulmonary thromboembolism]] is a sequel to in cattle to large emboli from liver abscesses close to the vena cava |
**Death may ocur due to massive haemorrhaging into lung tissue | **Death may ocur due to massive haemorrhaging into lung tissue | ||
*Parasites (e.g. [[Respiratory Parasitic Infections - Pathology#Dirofilaria immitis|''Dirofilaria immitis'']], [[Respiratory Parasitic Infections - Pathology#Angiostrongylus vasorum|''Angiostrongylus vasorum'']]) may be responsible | *Parasites (e.g. [[Respiratory Parasitic Infections - Pathology#Dirofilaria immitis|''Dirofilaria immitis'']], [[Respiratory Parasitic Infections - Pathology#Angiostrongylus vasorum|''Angiostrongylus vasorum'']]) may be responsible | ||
Latest revision as of 14:44, 26 October 2011
- Lungs are strategically situated to catch emboli carried in venous blood
- Because the lung is supplied by both pulmonary and bronchial arteries and has extensive collateral channels, infarction usually does not follow embolism or thrombosis unless pulmonary circulation is already compromised
- In animals, greatest risk comes from:
- Tumor emboli
- From e.g.: osteosarcoma and haemangiosarcoma in dogs, uterine carcinoma in cattle
- Septic emboli
- From bacterial endocarditis, jugular thrombophlebitis, hepatic abscesses etc.
- May cause unexpected death if in large numbers
- May develop suppurative pneumonia -> pulmonary abscesses, arteritis, thrombosis
- Tumor emboli
- Pulmonary infarcts usually occur when there is embolisation or thrombosis during general circulatory collapse or passive congestion of heart failure
- Pulmonary thromboembolism is a sequel to in cattle to large emboli from liver abscesses close to the vena cava
- Death may ocur due to massive haemorrhaging into lung tissue
- Parasites (e.g. Dirofilaria immitis, Angiostrongylus vasorum) may be responsible
- Long-term intravenous catheterisation may cuse thrombi pieces breaking off and lodging in pulmonary vessels