Difference between revisions of "Leptospirosis - Cats and Dogs"
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{{unfinished}} | {{unfinished}} | ||
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| + | ==Description== | ||
**Dogs and cats | **Dogs and cats | ||
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*method of action | *method of action | ||
**cause anaemia via intravascular haemolysis | **cause anaemia via intravascular haemolysis | ||
| − | ===== | + | |
| + | ==Signalment== | ||
| + | |||
| + | ==Diagnosis== | ||
| + | ===Clinical Signs=== | ||
*fever | *fever | ||
*dehydration | *dehydration | ||
*haemorrhaging from the mucous membranes of the body | *haemorrhaging from the mucous membranes of the body | ||
| − | === | + | |
| + | ===Laboratory Tests=== | ||
*dark field microscopy on fresh urine is best | *dark field microscopy on fresh urine is best | ||
| − | === | + | ===Pathology=== |
| + | Grossly- | ||
*widespread hameorrhages | *widespread hameorrhages | ||
*icterus | *icterus | ||
*pale foci in the [[Liver - Anatomy & Physiology|liver]] (not always a constant finding) | *pale foci in the [[Liver - Anatomy & Physiology|liver]] (not always a constant finding) | ||
*subcapsular and cortical renal haemorrhages | *subcapsular and cortical renal haemorrhages | ||
| − | + | ||
| + | <br> | ||
| + | Microscopically- | ||
*foci of necrosis | *foci of necrosis | ||
*dissociation of hepatocytes form each other (similar to post mortem change) | *dissociation of hepatocytes form each other (similar to post mortem change) | ||
| Line 37: | Line 48: | ||
*need to use a silver stain or immunofluorescence to demonstrate the organisms in tissues | *need to use a silver stain or immunofluorescence to demonstrate the organisms in tissues | ||
| + | ==Treatment== | ||
| + | |||
| + | ==Prognosis== | ||
| + | ==References== | ||
[[Category:Cat]][[Category:Dog]] | [[Category:Cat]][[Category:Dog]] | ||
[[Category:Hepatitis,_Bacterial]] | [[Category:Hepatitis,_Bacterial]] | ||
[[Category:To_Do_-_lizzyk]] | [[Category:To_Do_-_lizzyk]] | ||
Revision as of 08:53, 2 September 2010
 |
This article is still under construction. |
Description
- Dogs and cats
- Serovars canicola and icterohaemorrhagica cause leptospirosis in dogs, but are vaccinated against
- Serovars pomona and grippotyphosa are becoming important
- The host-adapted serovar canicolar causes acute renal failure in puppies; a chronic uraemic syndrome may follow
- Incidental infections with serovar icterohaemorrhagica or copenhagenii cause renal failure
- L. icterohaemorrhagiae may cause hepatic jaundice
- Serovar bratislava causes abortion and infertility in dogs, which may be the maintenance host
- Infections uncommon in cats
- Dogs and cats
- Leptospirosis icterohaemorrhagica - a septicaemic disease which affects the liver
- puppies
- Leptospirosis is an important spirochaetal group of diseases causing disease in animals and humans (zoonotic)
- Transmission
- via urine of affected animals
- organisms can remain viable for weeks in damp conditions
- method of action
- cause anaemia via intravascular haemolysis
Signalment
Diagnosis
Clinical Signs
- fever
- dehydration
- haemorrhaging from the mucous membranes of the body
Laboratory Tests
- dark field microscopy on fresh urine is best
Pathology
Grossly-
- widespread hameorrhages
- icterus
- pale foci in the liver (not always a constant finding)
- subcapsular and cortical renal haemorrhages
Microscopically-
- foci of necrosis
- dissociation of hepatocytes form each other (similar to post mortem change)
- substantial haemosiderin in the Kuppfer cells (from the haemolysis)
- need to use a silver stain or immunofluorescence to demonstrate the organisms in tissues