exocrine pancreatic insufficiency Flashcards
what is it characterised by
reduced secretion of pancreatic enzymes into the duodenum
main clinical manifestations
maldigestion and malnutrition, associated with low circulating levels of micronutrients, fat soluble vitamins and lipoproteins
GI symptoms e.g diarrhoea, abdominal cramps, steatorrhea (excessive amounts of fat in poo - they look looser, smellier and paler, like clay)
what is steatorrhea
excessive amounts of fat in poo
looser, smellier and paler like clay
exocrine pancreatic insufficiency can result from …
○ Chronic pancreatitis
○ Cystic fibrosis
○ Obstructive pancreatic tumours
○ Celiac disease
○ Zollinger-Ellison syndrome
○ GI or pancreatic surgical resection
mainstay of treatment
pancreatic enzyme replacement therapy with pancreatin
Pancreatin contains three main groups of digestive enzymes
Lipase - digests fats
Amylase - digests carbs
Protease - digests proteins
pancreatin needs to be taken with
meals and snacks
Fibrosing colonopathy has been reported in pt with CF taking high dose pancreatic enzyme replacement therapy (in excess of 10,000 units/kg/day of lipase). What are some possible risk factors for this?
in children, boys at higher risk than girls
more severe CF
concomitant use of laxatives
peak age for developing fibrosing colonopathy = 2-8 yrs
what to do if a patient on pancreatin develops new abdominal symptoms, or change in existing abdominal symptoms
review pt to exclude possibility of colonic damage
in patients who continue to experience abdominal symptoms despite high doses of pancreatin, consider a trial of the following drug type, based on limited evidence that acid suppression may improve effectiveness of pancreatin
acid suppressing drugs e.g. PPIs, H2RA
what needs to be routinely assessed? - hint vitamins
Levels of fat soluble vitamins and micronutrients (e.g. zinc and selenium) should be routinely assessed and supplementations advised wherever necessary
Non drug treatment
- dietary advice
- distribute food intake between 3 main meals a day, and 2-3 snacks
- avoid food difficult to digest
- avoid alcohol completely
true or false - pt should stop drinking alcohol completely
true
are reduced fat diets recommended?
no
avoid food that is difficult to digest e.g.
high fibre food
legumes (peas, beans, lentils)
Medium chain triglycerides (MCT) which are directly absorbed by the intestinal mucosa, were thought to be useful in some patients. However, evidence has shown that …
MCT enriched preparations offer no advantage over a normal balanced diet
why is pancreatin given
- Supplements of pancreatic are given to compensate for reduced or absent exocrine secretion
- They assist the digestion of starch, fat, protein
How should pancreatin be taken
- Dose to be taken with meals or snacks
- Doses should be swallowed whole or contents taken with water, or mixed with acidic fluid or soft food then swallowed immediately without chewing
Avoid retaining pancreatin in mouth because..
Can irritate peri oral skin and buccal mucosa if retained in mouth
Excessive doses of pancreatin can cause…
perianal irritation
Interaction with this uncommonly used anti diabetic drug
Acarbose - Pancreatin predicted to decrease effects of acarbose, avoid
Common side effects of pancreatin
Abdominal distension, constipation, nausea, vomiting
Why does pancreatin need to be taken with food, or immediately before or after food?
Pancreatin is inactivated by gastric acid therefore manufacturer advises they are best taken with food, or immediately before or after food
Can you have pancreatin with a hot meal
Avoid excessive heat if preparations are mixed with liquids or foods - pancreatin is inactivated by heat
When pancreatin is mixed with liquid or food, how long can it be kept for
Manufacture advises the resulting mixture should not be kept for more than one hour when it is mixed with liquid or food and any leftover food or liquid that contains pancreatic and should be discarded
True or false - EC preps deliver higher enzyme concentration in the duodenum
true as long as the capsule contents is swallowed whole, no chewing
How to take gastro-resistant granules
Mixed with slightly acidic soft food or liquid such as apple juice, and then swallow immediately without chewing
Capsules containing EC granules can be opened and the granules administered in the same why
Ensure pt taking higher strength pancreatic preparations are always adequately..
hydrated