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; Definition
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==Introduction==
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[[Exocrine Pancreatic Insufficiency| Exocrine Pancreatic Insufficiency]] is a rare disease in cats but can occur following [[Pancreatitis - Cat|chronic pancreatitis]].  
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==Description==
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A rare disease in cats but can occur following [[Pancreatitis, Chronic Interstitial|chronic pancreatitis]].  
   
==Diagnosis==
 
==Diagnosis==
 
===History===
 
===History===
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===Clinical signs===
 
===Clinical signs===
Weight loss and muscle wastage are usually seen in assosiation with EPI. Diarrhoea and steatorrhoea are also common. Hair coat is often in a poor condition and Cats presenting with EPI may also have concurrent Diabetes mellitus.
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Weight loss and muscle wastage are usually seen in assosiation with EPI. Diarrhoea and steatorrhoea are also common. Cats may present with a wet, greasy looking body coat particularly around the perineal area, this may be a result of fatty soiling or secondary to cobalamin deficiency.
    
===Laboratory Tests===
 
===Laboratory Tests===
 
Routine hamatology and biochemistry are often unremarkable in cats with EPI.
 
Routine hamatology and biochemistry are often unremarkable in cats with EPI.
Serum concentrations of cobalamin are often decreased. Serum folate concentrations may also be decreased due to concurrent inflammatory bowel disease or intestinal lymphoma.
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Serum concentrations of cobalamin are often decreased. Serum folate concentrations may also be decreased due to concurrent [[Inflammatory Bowel Disease|Inflammatory bowel disease]] or intestinal lymphoma.
The most sensitive and specific test for the diagnosis of EPI is the '''TLI''' serum assay. The values are greatly reduced as compared to normal animals. Values '''<2µg/l''' in dogs are considered diagnostic. This test must be carried out after withdrawing food for several hours.
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The most sensitive and specific test for the diagnosis of feline EPI is the feline [[Exocrine Pancreatic Insufficiency|trypsin-like immunoreactivity]] assay ('''fTLI'''). The values are greatly reduced as compared to normal animals. Values '''<8µg/l''' in cats are considered diagnostic. This test must be carried out after withdrawing food for several hours. Unfortunatley the fTLI assay is only available from specialist laboratories, other tests are available but are often inconvenient and expensive.
 
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Due to the pathophysiology of the disease, cats with EPI may also have concurrent [[Diabetes Mellitus|diabetes mellitus]].
 
===Other===
 
===Other===
Atrophy of the pancreas seen via exploratory laparotomy or laparoscopy
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Atrophy of the pancreas seen via exploratory laparotomy or laparoscopy.
    
==Treatment==
 
==Treatment==
 
===Enzyme replacement===
 
===Enzyme replacement===
Pancreatic enzyme replacement, raw pancreas (10-20g/feed is generally more effective than dried enzyme replacment and can be stored frozen for at least three months.  
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Pancreatic enzyme replacement, raw pancreas (10-20g/feed is generally more effective than dried enzyme replacment and can be stored frozen for at least three months).
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Clinical signs often resolve within four to five days.
    
===Dietary modification===
 
===Dietary modification===
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===Vitamin supplementation===
 
===Vitamin supplementation===
Levels of vitamin B12 (cobalamin) and vitamin E (tocopherol) are often found to be low and hence should be supplemented. Similarly Cobalamin supplementation is often required.
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In cats Cobalamin absorption depends on adequate secretion of intrinsic factor, in cats 99% of intrinsic factor is released from the exocrine pancreas and subsequently cats with EPI are frequently cobalamin deficient. Cats diagnosed with EPI should be supplemented every two weeks to maintain normal serum cobalamin levels. Long term monitoring of serum cobalamin is advised. Similarly cats with EPI may also have subnormal Vitamin E levels which should be measured and corrected. A Vitamin K responsive coagulopathy has been reported in cats and hence it is sensible to examine the vitamin K status of cats with EPI.  
 
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===Antibiotic therapy===
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Dogs with EPI often have Small Intestinal Bacterial Overgrowth (SIBO). This can be treated with oral oxytetracycline, tylosin or metronidazole.
      
===Glucocorticoid therapy===
 
===Glucocorticoid therapy===
Oral prednisolone may be useful in animals that do not respond to the above treatment.  
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Oral prednisolone may be useful in animals that do not respond to the above treatment. This is normally only required for a short period.
 
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Cats that do not respond well to the treatment listed above may have small intestinal disease causing malabsorption despite adequate pancreatic enzyme replacement. These cases usually require further investigation of the small intestine.
 
==Prognosis==
 
==Prognosis==
 
EPI is generally irreversible and hence life-long treatment is needed. The prognosis is generally good as long the owner is aware of the longevity of the disease and the cost involved with treating it.
 
EPI is generally irreversible and hence life-long treatment is needed. The prognosis is generally good as long the owner is aware of the longevity of the disease and the cost involved with treating it.
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==Signalment==
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==Diagnosis==
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{{Learning
==Clinical Signs==
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|literature search = [http://www.cabdirect.org/search.html?q=title%3A%28%22Exocrine+Pancreatic+Insufficiency%22%29+AND+od%3A%28cats%29 Exocrine pancreatic insufficieny in cats publications]
==Laboratory tests==
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==Radiography==
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==References==
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Hall, E.J, Simpson, J.W. and Williams, D.A. (2005) '''BSAVA Manual of Canine and Feline Gastroenterology (2nd Edition)''' ''BSAVA''
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Ettinger, S.J, Feldman, E.C. (2005) '''Textbook of Veterinary Internal Medicine''' (6th edition, volume 2)
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Sturgess, K. (2003) '''Notes on Feline Internal Medicine''' Blackwell Publishing.
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Tams, T.R. (2003) '''Handbook of Small Animal Gastroenterology''' (2nd edition) Saunders.
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{{review}}
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[[Category:Expert_Review]]
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[[Category:Pancreatic Diseases - Cat]]