Difference between revisions of "Central Nervous System - Vascular Pathology"

Revision as of 11:06, 18 August 2008

Not uncommon in geriatric cats.
- Hypertension is defined as a systolic pressure greater than 175mmHg.
The systemic hypertension may be:
- Primary
- Secondary to:
  - Hyperthyroidism
  - Chronic renal failure
  - Diabetes mellitus
  - Acromegaly
  - Chronic severe anaemia
  - Hyperadrenocorticism
  - Hyperaldosternism
  - Phaeochromocytoma.
For this reason, cats presenting with forebrain disease should first have their blood pressure checked.
- If raised, this should be treated before further investigation takes place.

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+* Vascular pathology if the CNS is less common in animals than in humans.
+* Pathologies include:
+** Thrombosis
+** Infarction
+** Haemorrhage
+* These can occur:
+** Spontaneously
+** Secondary to drug therapy
+** E.g. L-asparaginase or anti-coagulants.
+** With thrombocytopaenia or other bleeding disorders
+** With trauma
+** With hypertension
+** With atherosclerosis from hypothyroidism
+** With infection
+*** I.e. septic emboli.
+* MRI and CT may detect haemorrhage and infaction.
+==Hypertension Related Brain Haemorrhage==
+* Not uncommon in geriatric cats.
+** Hypertension is defined as a systolic pressure greater than 175mmHg.
+* The systemic hypertension may be:
+** Primary
+** Secondary to:
+*** Hyperthyroidism
+*** Chronic renal failure
+*** [[DM|Diabetes mellitus]]
+*** Acromegaly
+*** Chronic severe anaemia
+*** Hyperadrenocorticism
+*** Hyperaldosternism
+*** Phaeochromocytoma.
+* For this reason, cats presenting with forebrain disease should first have their blood pressure checked.
+** If raised, this should be treated before further investigation takes place.