temple - metabolic support uk€¦ · temple tools enabling metabolic parents learning supported by...
TRANSCRIPT
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BASED ON THE ORIGINAL TEMPLE WRITTEN BY BURGARD AND WENDELVERSION 2, FEBRUARY 2017
TEMPLETools Enabling Metabolic Parents LEarning
ADAPTED BY THE DIETITIANS GROUP
Supported byas a service to metabolic medicine
British Inherited Metabolic Diseases Group MCADD
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TEMPLETools Enabling Metabolic Parents LEarning
Supported byas a service to metabolic medicine
BASED ON THE ORIGINAL TEMPLE WRITTEN BY BURGARD AND WENDELVERSION 2, FEBRUARY 2017
ADAPTED BY THE DIETITIANS GROUP
British Inherited Metabolic Diseases Group
Information for families following a positive newborn screening
MCAD Deficiency
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MCAD Deficiency
Medium Chain Acyl-CoA Dehydrogenase
Supported by as a service to metabolic medicine1
MCADD stands for medium chain acyl-CoA dehydrogenase deficiency
It is an inherited metabolic condition
What is MCADD?
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High levels of medium chain fatty acids and chemicals in the urine
High levels of medium chain fatty acids in the blood
Supported by as a service to metabolic medicine2
What is MCADD?
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Supported by as a service to metabolic medicine3
There are two main food groups that supply the body with energy:
• Carbohydrates (starches and sugars) provide a readily available energy source
• Fats also provide energy. Fat is stored in the body so it can be used as an energy reserve
Which foods supply the body with energy?
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Skin
NORMAL
Fat
Muscle
Supported by as a service to metabolic medicine4
The body uses its own fat stores to provide energy when carbohydrate is depleted.
In MCADD, there are problems breaking down these fat stores to release energy.
MCADD and fat
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YTTA
SDICA
F
Supported by as a service to metabolic medicine5
Body fat stores are broken down into fatty acids.
Breaking down fat stores for energy
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Fatty acids are made up of carbon atoms joined together to form chains of many different lengths.
What are fatty acids?
Supported by as a service to metabolic medicine6
CCCCCCCCCCCCCC
CCCCCCCC
CCCC Short chain
Medium chain
Long chain
C16 CARBON ITEMS
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C
CCC
CCCCC
C
Supported by as a service to metabolic medicine7
Fatty acids and enzymes
Fatty acid chains are then broken down into smaller units by enzymes (which are like chemical scissors). This enables the body to produce energy in a form which it can use.
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C8
C10
C8C10
C10C8C10
C8
Supported by as a service to metabolic medicine8
What happens in MCADD?
In MCADD, the body lacks an enzyme that helps convert fat stores into energy.
This stops the medium chain fats from being used for energy.
There is only a problem when it is necessary to break down fats quickly.
This occurs when there is a shortage of energy supply.
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Supported by as a service to metabolic medicine9
What can go wrong in MCADD?
There can be shortage of energy supply and a build up of harmful chemicals with illness or lack of food.
Symptoms include:
• poor feeding
• excessively sleepy
• rapid breathing
• seizures
• low blood sugar
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What can go wrong in MCADD?
If shortage of energy supply is left untreated, it can lead to coma and brain damage and it may be life threatening.
However, please remember, this can all be prevented with timely and correct management.
Supported by as a service to metabolic medicine10
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Supported by as a service to metabolic medicine11
Metabolic crisis
• A metabolic crisis triggers the MCADD symptoms
• This leads to a lack of energy supply and build up of toxic chemicals
• It is usually precipitated by childhood infections or viruses causing high temperatures, vomiting, and diarrhoea
• Avoidance of a metabolic crisis is essential
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Supported by as a service to metabolic medicine12
MCADD is diagnosed by newborn screening. High levels of medium chain fatty acids and other chemicals are found in the blood.
How is MCADD diagnosed?
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SAFE FASTING TIMES
Age Time
0–4 months 6 hours4–8 months 8 hours8–12 months 10 hoursOver 1 year 12 hours
Supported by as a service to metabolic medicine13
In babies, it is treated by avoiding long periods without feeding, even when well.
The length of time babies can go without feeds is known as the safe fasting time.
The safe fasting time increases with age and it should be normal in older children when well.
How is MCADD treated?
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Breast milk or standard infant formula
A normal, healthy family diet for older babies and children
Regular meals
Supported by as a service to metabolic medicine14
How is MCADD managed day to day?
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Breast milk or standard infant formula
A normal, healthy family diet for older babies and children
Regular meals
Supported by as a service to metabolic medicine14
How is MCADD managed day to day?
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Breast milk or standard infant formula
A normal, healthy family diet for older babies and children
Regular meals
Supported by as a service to metabolic medicine14
How is MCADD managed day to day?
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Supported by as a service to metabolic medicine15
How is MCADD managed during illness?
• During any childhood illness, an emergency regimen is given
• This provides energy and prevents build up of harmful chemicals that cause a metabolic crisis
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Start the emergency regimen. This is made up of glucose polymer
This must be given regularly day and night
Contact your metabolic team for help if your child is unwell
Do not use sugar-free drinks during illness
Supported by as a service to metabolic medicine16
How is MCADD managed during illness?
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Start the emergency regimen. This is made up of glucose polymer
This must be given regularly day and night
Contact your metabolic team for help if your child is unwell
Do not use sugar-free drinks during illness
Supported by as a service to metabolic medicine16
How is MCADD managed during illness?
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Start the emergency regimen. This is made up of glucose polymer
This must be given regularly day and night
Contact your metabolic team for help if your child is unwell
Do not use sugar-free drinks during illness
Supported by as a service to metabolic medicine16
How is MCADD managed during illness?
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Always take full amounts of emergency feeds as prescribed
If symptoms continue and/or you are worried, go immediately to the hospital
Phone your metabolic team
Supported by as a service to metabolic medicine17
Checklist for illness
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Always take full amounts of emergency feeds as prescribed
If symptoms continue and/or you are worried, go immediately to the hospital
Phone your metabolic team
Supported by as a service to metabolic medicine17
Checklist for illness
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Always take full amounts of emergency feeds as prescribed
If symptoms continue and/or you are worried, go immediately to the hospital
Phone your metabolic team
Supported by as a service to metabolic medicine17
Checklist for illness
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It is imperative that emergency feeds are started promptly and there are no delays in management.
Supported by as a service to metabolic medicine18
Key message
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Blood tests to check chemical levels
Height and weight
Developmental checks
Emergency feeds are adjusted with age
Supported by as a service to metabolic medicine19
How is MCADD monitored?
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Blood tests to check chemical levels
Height and weight
Developmental checks
Emergency feeds are adjusted with age
Supported by as a service to metabolic medicine19
How is MCADD monitored?
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Blood tests to check chemical levels
Height and weight
Developmental checks
Emergency feeds are adjusted with age
Supported by as a service to metabolic medicine19
How is MCADD monitored?
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Blood tests to check chemical levels
Height and weight
Developmental checks
Emergency feeds are adjusted with age
Supported by as a service to metabolic medicine19
How is MCADD monitored?
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Humans have chromosomes composed of DNA
Genes are pieces of DNA that carry the genetic instruction. Each chromosome may have several thousand genes
The word mutation means a change or error in the genetic instruction
We inherit particular chromosomes from the egg of the mother and sperm of the father
The genes on those chromosomes carry the instruction that determines characteristics, which are a combination of the parents
Supported by as a service to metabolic medicine20
Chromosomes, genes, mutations
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Humans have chromosomes composed of DNA
Genes are pieces of DNA that carry the genetic instruction. Each chromosome may have several thousand genes
The word mutation means a change or error in the genetic instruction
We inherit particular chromosomes from the egg of the mother and sperm of the father
The genes on those chromosomes carry the instruction that determines characteristics, which are a combination of the parents
Supported by as a service to metabolic medicine
Chromosomes, genes, mutations
20
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Humans have chromosomes composed of DNA
Genes are pieces of DNA that carry the genetic instruction. Each chromosome may have several thousand genes
The word mutation means a change or error in the genetic instruction
We inherit particular chromosomes from the egg of the mother and sperm of the father
The genes on those chromosomes carry the instruction that determines characteristics, which are a combination of the parents
Supported by as a service to metabolic medicine
Chromosomes, genes, mutations
20
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Humans have chromosomes composed of DNA
Genes are pieces of DNA that carry the genetic instruction. Each chromosome may have several thousand genes
The word mutation means a change or error in the genetic instruction
We inherit particular chromosomes from the egg of the mother and sperm of the father
The genes on those chromosomes carry the instruction that determines characteristics, which are a combination of the parents
Supported by as a service to metabolic medicine
Chromosomes, genes, mutations
20
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Humans have chromosomes composed of DNA
Genes are pieces of DNA that carry the genetic instruction. Each chromosome may have several thousand genes
The word mutation means a change or error in the genetic instruction
We inherit particular chromosomes from the egg of the mother and sperm of the father
The genes on those chromosomes carry the instruction that determines characteristics, which are a combination of the parents
Supported by as a service to metabolic medicine
Chromosomes, genes, mutations
20
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MCADD is an inherited condition. There is nothing that could have been done to prevent your baby from having MCADD
Everyone has a pair of genes that make the medium chain acyl-CoA dehydrogenase enzyme. In children with MCADD, neither of these genes works correctly. These children inherit one non-working MCADD gene from each parent
Parents of children with MCADD are carriers of the condition
Carriers do not have MCADD because the other gene of this pair is working correctly
Supported by as a service to metabolic medicine21
Inheritance
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MCADD is an inherited condition. There is nothing that could have been done to prevent your baby from having MCADD
Everyone has a pair of genes that make the medium chain acyl-CoA dehydrogenase enzyme. In children with MCADD, neither of these genes works correctly. These children inherit one non-working MCADD gene from each parent
Parents of children with MCADD are carriers of the condition
Carriers do not have MCADD because the other gene of this pair is working correctly
Supported by as a service to metabolic medicine
Inheritance
21
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MCADD is an inherited condition. There is nothing that could have been done to prevent your baby from having MCADD
Everyone has a pair of genes that make the medium chain acyl-CoA dehydrogenase enzyme. In children with MCADD, neither of these genes works correctly. These children inherit one non-working MCADD gene from each parent
Parents of children with MCADD are carriers of the condition
Carriers do not have MCADD because the other gene of this pair is working correctly
Supported by as a service to metabolic medicine
Inheritance
21
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MCADD is an inherited condition. There is nothing that could have been done to prevent your baby from having MCADD
Everyone has a pair of genes that make the medium chain acyl-CoA dehydrogenase enzyme. In children with MCADD, neither of these genes works correctly. These children inherit one non-working MCADD gene from each parent
Parents of children with MCADD are carriers of the condition
Carriers do not have MCADD because the other gene of this pair is working correctly
Supported by as a service to metabolic medicine
Inheritance
21
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Mother is a carrier of MCADD
Female egg cells
Male sperm cells
Father is a carrier of MCADD
Supported by as a service to metabolic medicine22
Inheritance — Autosomal recessive (carriers of MCADD)
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Child will not be a carrier of MCADD
Child will be a carrier of MCADD
Child will have MCADD
Mother is a carrier of MCADD
Father is a carrier of MCADD
Supported by as a service to metabolic medicine23
Inheritance — Autosomal recessive – possible combinations
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When both parents are carriers, in each
pregnancy the risk to the baby is as follows:
25% chance (1 in 4) of MCADD
50% chance (1 in 2) for the baby to be a
carrier of MCADD
25% chance (1 in 4) for the baby to have
two working genes and neither have MCADD
or be a carrier
Supported by as a service to metabolic medicine24
Future pregnancies
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MCADD is a serious inherited metabolic condition that causes life threatening symptoms if left untreated
Damage can be prevented with timely and appropriate use of emergency drinks during illness and avoiding long periods without eating
When babies and children are well, no special diet is needed
MCADD is easily treated and people should lead normal, healthy and active lives
Supported by as a service to metabolic medicine
Take home messages
25
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MCADD is a serious inherited, metabolic disorder that may cause life threatening symptoms if left untreated
Damage can be prevented with timely and appropriate use of emergency drinks during illness and avoiding long periods without eating
When babies and children are well, no special diet is needed
MCADD is easily treated and people should lead normal, healthy and active lives
Supported by as a service to metabolic medicine
Take home messages
25
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MCADD is a serious inherited, metabolic disorder that may cause life threatening symptoms if left untreated
Damage can be prevented with timely and appropriate use of emergency drinks during illness and avoiding long periods without eating
When babies and children are well, no special diet is needed
MCADD is easily treated and people should lead normal, healthy and active lives
Supported by as a service to metabolic medicine
Take home messages
25
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MCADD is a serious inherited, metabolic disorder that may cause life threatening symptoms if left untreated
Damage can be prevented with timely and appropriate use of emergency drinks during illness and avoiding long periods without eating
When babies and children are well, no special diet is needed
MCADD is easily treated and people should lead normal, healthy and active lives
Supported by as a service to metabolic medicine
Take home messages
25
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Always ensure you have a good supply of your emergency glucose polymer powder and it is in date
Your glucose polymer powder is prescribed by your GP and you obtain it from your pharmacy or home delivery
Medications to control fever should be given as normally recommended – always keep supplies available
Remember to keep contact numbers of your metabolic team to hand
Supported by as a service to metabolic medicine26
Helpful hints
![Page 48: TEMPLE - Metabolic Support UK€¦ · TEMPLE Tools Enabling Metabolic Parents LEarning Supported by as a service to metabolic medicine BASED ON THE ORIGINAL TEMPLE WRITTEN BY BURGARD](https://reader030.vdocument.in/reader030/viewer/2022041105/5f06e4e97e708231d41a436b/html5/thumbnails/48.jpg)
Always ensure you have a good supply of your emergency glucose polymer powder and it is in date
Your glucose polymer powder is prescribed by your GP and you obtain it from your pharmacy or home delivery
Medications to control fever should be given as normally recommended – always keep supplies available
Remember to keep contact numbers of your metabolic team to hand
Supported by as a service to metabolic medicine
Helpful hints
26
![Page 49: TEMPLE - Metabolic Support UK€¦ · TEMPLE Tools Enabling Metabolic Parents LEarning Supported by as a service to metabolic medicine BASED ON THE ORIGINAL TEMPLE WRITTEN BY BURGARD](https://reader030.vdocument.in/reader030/viewer/2022041105/5f06e4e97e708231d41a436b/html5/thumbnails/49.jpg)
Always ensure you have a good supply of your emergency glucose polymer powder and it is in date
Your glucose polymer powder is prescribed by your GP and you obtain it from your pharmacy or home delivery
Medications to control fever should be given as normally recommended – always keep supplies available
Remember to keep contact numbers of your metabolic team to hand
Supported by as a service to metabolic medicine
Helpful hints
26
![Page 50: TEMPLE - Metabolic Support UK€¦ · TEMPLE Tools Enabling Metabolic Parents LEarning Supported by as a service to metabolic medicine BASED ON THE ORIGINAL TEMPLE WRITTEN BY BURGARD](https://reader030.vdocument.in/reader030/viewer/2022041105/5f06e4e97e708231d41a436b/html5/thumbnails/50.jpg)
Always ensure you have a good supply of your emergency glucose polymer powder and it is in date
Your glucose polymer powder is prescribed by your GP and you obtain it from your pharmacy or home delivery
Medications to control fever should be given as normally recommended – always keep supplies available
Remember to keep contact numbers of your metabolic team to hand
Supported by as a service to metabolic medicine
Helpful hints
26
![Page 51: TEMPLE - Metabolic Support UK€¦ · TEMPLE Tools Enabling Metabolic Parents LEarning Supported by as a service to metabolic medicine BASED ON THE ORIGINAL TEMPLE WRITTEN BY BURGARD](https://reader030.vdocument.in/reader030/viewer/2022041105/5f06e4e97e708231d41a436b/html5/thumbnails/51.jpg)
• My dietitians
• My nurses
• My doctors
– Contact details, address, photos
Supported by as a service to metabolic medicine
Who’s who
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British Inherited Metabolic Diseases Group
www.bimdg.org.uk www.nutricia.co.uk www.climb.org.uk