Angelmum

Moderator
Rare diseases are long-standing, life threatening, progressively disabling conditions that affect a small percentage of population (1 in 2,500 individuals) and require multi-disciplinary care. One rare disease may affect only a handful of patients in one demographic (eg. In the EU) and another might affect as many as 50,000 in other region (eg. Asia).


80% of rare diseases have identified genetic origins whilst others are the result of infections (bacterial or viral), allergies and environmental causes, or are degenerative and proliferative. The 6000 to 8000 rare diseases are characterised by a broad diversity of disorders and symptoms that vary not only from disease to disease but also from patient to patient suffering from the same disease.


Relatively common symptoms can hide underlying rare diseases leading to misdiagnosis and delaying treatment. Quintessentially disabling, the patient's quality of life is affected by the lack or loss of autonomy due to the chronic, progressive, degenerative and frequently life-threatening aspects of the disease. The fact that there are often no existing effective cures adds to the high level of pain and suffering endured by patients and their families.

Which are the Rare Genetic diagnosed in Singapore?
My daughter was diagnosed with
Angelman Syndrome, a deletion of chromosome 15. This medical term will remain as long as my girl lives. Angelman syndrome affects an estimated 1 in 12,000 to 20,000 people.

AS is a neurodevelopmental genetic disorder characterized by global developmental delays, speech impairment, disorders of balance or movement and frequent laughter, resulting from a defect in the maternally inherited copy of chromosome 15q11-13.

My child is attending Rainbow Centre, Yishun Park School - Programme for Pupils with Multiple Disabilities (PPMD). She does not receive any mainstream education or customize curriculum such as reading, writing, basic literacy and numeracy skills. PPMD students have an Individualised Education Plan (IEP), which covers Communication Skills, Cognitive Skills, Social Skills, Fine Motor Skills, Gross Motor Skills and Adaptive Daily Living Skills.

Note that it is inappropriate to use my girl’s Chronological age to predict her Biological or Mental age. Person with Global Developmental Delays such as AS, is late or may not reach major milestones. Individuals with Angelman Syndrome will require life-long care.


Most of the special needs families faced the lack of scientific knowledge and quality information on the disease (It is uncommon so Doctors are unable to give a lot of help so you have to find the relevant support and information yourself), which often result in a delay in diagnosis. Early intervention is important at young age. When a child grows older, it is harder to intervene. Early detection and treatment can help prevent intellectual and physical disabilities as well as life-threatening illnesses.

My child's Angelman 'peers' were able to mumble 'mummy' or 'water 'but due to lack of speech therapy in Rainbow Centre and earlier intervention, my daughter's development is sadly, the lousiest, including her cognitive and fine motor skills. Rainbow Centre Yishun kept giving excuses and denied my child adequate therapy and learning opportunities... compared to her classmates. When she was 'kicked out' of EIPIC, I couldn't see any visible improvement. I know having a special needs child is not something easy to accept (every parent wants a normal child, who would gladly embrace an abnormal child instantly) but I'd like to stress that getting an early diagnosis and intervention will benefit your child. Don't 'rob her/his chance' to do better or be treated.

Also the need for appropriate quality health care engenders inequalities and difficulties in access to affordable treatment and care. This often results in heavy financial burdens on patients, families and/or parents. Govt is unable to offer adequate support. Monetary support is usually based on household income, eg the combined income shouldn't exceed S$1800 per month (low income).

Due to the broad diversity of disorders and relatively common symptoms which can hide underlying rare diseases, initial misdiagnosis is common. In addition symptoms differ not only from disease to disease but also from patient to patient suffering from the same disease. I know of a child who was diagnosed as ADHD but after aged 8 years old, in Rainbow Centre, Margaret Drive he was re-diagnosed as an Autistic child.

A good, attentive doctor who is willing to go beyond is likely to do some web search and see whether what you've described fit a certain rare genetic disorder. He may order tests but in my case, KK Hospital refused to order any lab test because I've no family history. Tellling my gynaes, I had a foetus with no heart beat is common to them so they see no reason I had to be worried and requested for detailed tests. Telling the paediaticians my girl couldn't sit, wobbly at six months old is common to them. A delay in intervention or treatment for certain patient is no big deal to them.

It is a chore to run lots of 'unnecessary tests. Being a C class patient, I was probably viewed as wasting govt subsidy. There's no point to zoom into. Doctors' decision for not conducting detailed tests have resulted in a live-long 'burden'... a special needs child requiring life-long care and support. Hospital and doctors have no liabilities to bear. You foot all the medical and living costs, shouldered whatever nots, stress and weird stares as well as hurtful remarks ...not Hospital or our PAP govt. Parents are fully responsible for what 'their factory have produced'.



There is no systematic approach to analysing the cost-effectiveness of new technologies, treatments and services for rare diseases as a collective group.... of course, affordable.


Some other rare genetic in Spore: Click
 
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Angelmum

Moderator
Rare Genetic -

15q deletions​
A chromosome 15q deletion is a rare genetic condition in which there is a missing copy of part of the genetic material that makes up one of the body’s 46 chromosomes. Like most other chromosome disorders, this increases the risk of birth defects, developmental delay and learning difficulties. However, the problems that can develop depend very much on what genetic material is missing.

15q deletions are caused by a mistake that occurs when the parents’ sperm or egg cells are formed. When egg and sperm cells are formed, the two members of each pair of chromosomes normally line up together and then break and recombine to create new chromosomes that contain different combinations of the genes transmitted by the grandparents to the parents of the child.
Children can be from all parts of the world and from all types of background have 15q deletions. No environmental, dietary or lifestyle factors are known to cause them. So there is nothing that either parent did before or during pregnancy that caused the deletion and equally nothing could have been done to prevent it.

If the deletion has arisen on the chromosome 15 that came from the father, the child will have Prader-Willi syndrome, characterised by overweight, overeating, small genitalia in boys and men, low muscle tone and dysfunction of the central nervous system. If the deletion has arisen on the chromosome 15 that came from the mother, the child will have Angelman syndrome, characterised by developmental delay, speech delay or no speech, a movement and balance disorder, an excitable personality and inappropriately happy disposition.

Where the deletion was smaller, some babies have apparently fed well and even breastfed and one child is described with an ‘immense appetite’. However, most babies have fed slowly, been unable to cope with breastfeeding but managed better with a bottle. All babies with a larger deletion are described as having feeding difficulties but with persistence these have resolved, generally without the need for long term tube feeding. Gastro oesophageal reflux (GORD, GERD), where the stomach contents return up the food passage, may occur.Children are generally sociable and affectionate and families find very great reward in their child being able to communicate his feelings towards them. As babies there seems to be a tendency to be passive and inert but by the preschool years a more ositive aspect generally emerges. Children usually do not understand safety constraints and need fulltime supervision.
 

Angelmum

Moderator
Re: Rare Genetic - Pompe disease

Chloe fell ill, with temperature that was erratic over the next week or so. Parents brought her to several doctors during this period. Eventually, they went back to her pediatrician at Gleneagles Hospital, who referred them to KK Children’s Emergency.

Upon registration, six to seven doctors attended to Chloe immediately. Mummy and daddy wondered why the commotion when it was just bronchitis. Chloe was hooked up to several machines, including a respirator. Doctors said she had breathing difficulty when she appeared all normal and rosy to parents. An X-ray was done and they discovered that her heart is enlarged! Further investigation was done via a cardio scan. The screening showed that her heart muscles had thickened. One specialist came in after another. No one could arrive at a conclusion about her condition.

Two weeks after admission and under intensive care, on 2nd July 2010, Chloe was confirmed to be suffering from a very rare genetic condition – Pompe Disease (which weakens her overall muscles, including that of the heart). Parents had been presented with hard facts about Chloe’s current condition and her bleak chance of living a quality life. The only treatment (not cure) – enzyme replacement, is proven to help with improving the heart condition and the overall muscular function. However, the patient may suffer from the side effects or develop anti-bodies against the infused enzyme. Doctors are not sure if she will react to the enzyme at all. Even if she does, when that happen and or how well the treatment can help her. The cardiologist even commented that it is a matter of time that she passes on due to the weak and progressive heart condition. Worse still, she may need respirators and feeding aid, even if parents manage to keep her alive. In addition, patients with such condition tend to have a short(er) live span. To add on to all these is the hefty medical cost of about $200,000 to $300,000 per year (and increasing as she grows older and requires higher dosage). This will be a life long treatment if we wish to keep her alive.



Due to late diagnosis and treatment, Pompe disease has affected Chloe’s skeletal muscles causing her to be in the state of hypotonia. Thus, Chloe required more medical support and intervention as compared to other children. In term of her medical needs, apart from the expensive enzyme replacement therapy, she requires other interventions in order to have quality of life.


If parents take a holistic approach in having first world healthcare, they will need to address the cost of medical equipment and post hospitalisation treatment. It is shocked to find out that the same equipment (eg. ventilator and nasal mask) cost only 50% from what they are paying locally.


Respiratory care:

From left to right
Ventilator @ S$9.600.00, Cough assist @ S$6,100.00, Suction pump @ S$400.00,
Oximeter @ S$3,000.00, Humidifier for Bipap @ S$480.00, Oxygen concentrator @ S$1,500.00

Oxygen cylinder @ S$350.00 (S$35.00 per refill), nasal mask @ S$250.00 (replace in 9months), BV filter @ S$5.00 (replace weekly), glove @ S$6.00/box, Suction connecting tube @ S$2.00 (replace weekly), suction catheter @ S$0.50 (replace daily), inhaler chamber @ S$45.00, disposable O2 sensor @ S$25.00 (replace when necessary), ventilator tubing @ S$16.00 (replace when necessary)
Feeding care:

Feeding button @S$140.00 (replace in 9-12months), feeding tube @ S$25.00 (replace in 3months), syringe @ S$1.50 (replace weekly), button pad @ S$7.00, gauze @ S$0.50/pack, sterile water @ S$0.40/each, stoma powder @ S$ 12.00


Medications and therapies:
Long term medicines for Chloe consists of the following:
Myozyme, Domperidone, Captopril, Zyrtec , Flixotide inhaler, Salbutamol inhaler and Fluimucil.
The cost of the medications added up to more than $18,000 a month.
Parents are glad that the cost of the main drug, Myozyme, is currently been taken care by several sponsors. However, there is no permanent solution as to how this treatment will be reimbursed.

There are equipment that they have at home for her to do her routine too.

Cuddlebug @ S$4,800.00, supine stander @ S$3,600.00, trunk support suit @ S$380.00, AFO S$480.00, hand splint @ S$130.00, medicine ball ($N/A)
Every week Chloe attends different therapies starting with speech & language therapy, occupational therapy, physio therapy to swallowing clinic. All the therapies added up to several thousand dollars a year.

In order to keep cost low, parents are traveling over to Malaysia to purchase items like formula milk, diaper, baby wipe,bottle cleanser, laundry detergent etc. All in all, they could save up to 20%-30% as compared to buying from local supermarkets.

As parents, we can only give our child what we have and can afford. We are ready to give all. Parents are willing to give up their car, apartment and all the possession but even all these will not be enough to pay for her life long treatment. No ordinary working class parents will be able to afford the medical fees. As the condition is very rare, no organization nor government body provides funding of any kind in Singapore. Parents hope there is a CSR (Corporate Social Responsibility) program to help all families living with special needs children.
 

Angelmum

Moderator
Menkes syndrome

Menkes syndrome is a disorder that affects copper levels in the body. It is characterized by sparse, kinky hair; failure to gain weight and grow at the expected rate (failure to thrive); and deterioration of the nervous system. Additional signs and symptoms include weak muscle tone (hypotonia), sagging facial features, seizures, developmental delay, and intellectual disability. Children with Menkes syndrome typically begin to develop symptoms during infancy and often do not live past age 3. Early treatment with copper may improve the prognosis in some affected individuals. In rare cases, symptoms begin later in childhood. It is characterized by wedge-shaped calcium deposits in a bone at the base of the skull (the occipital bone), coarse hair, and loose skin and joints.


The incidence of Menkes syndrome and occipital horn syndrome is estimated to be 1 in 100,000 newborns.

Copper is necessary for many cellular functions, but it is toxic when present in excessive amounts. Mutations in the ATP7A gene result in poor distribution of copper to the body's cells. Copper accumulates in some tissues, such as the small intestine and kidneys, while the brain and other tissues have unusually low levels of copper. The decreased supply of copper can reduce the activity of numerous copper-containing enzymes that are necessary for the structure and function of bone, skin, hair, blood vessels, and the nervous system.

The defect makes it hard for the body to distribute copper in food from the intestines into the bloodstream for use in other areas. As a result, the brain and other parts of the body do not get enough copper. Copper can build up in the small intestine and kidneys, but low copper levels in other areas can affect the structure of bone, skin, hair, and blood vessels, and interfere with nerve function.

Menkes syndrome is inherited, which means it runs in families. The gene is on the X-chromosome, so if a mother carries the defective gene, each of her sons has a 50% chance of developing the disease and 50% of her daughters will be a carrier.

Hi all, I am new here. Will be posting more about what my son is suffering from. Its called Menkes Syndrome.
 

Angelmum

Moderator
Cornelia de Lange Syndrome

Cornelia de Lange Syndrome (CdLS) is a genetic disorder present from birth, but not always diagnosed at birth. It causes a range of physical, cognitive and medical challenges and affects both genders equally. It is often termed as Bushy Syndrome and is also known as Amsterdam dwarfism. It is a genetic disorder that can lead to severe developmental anomalies. It affects the physical and intellectual development of a child. It is estimated at 1 in 10,000 to 30,000.


Following are the features and characteristics that help in spotting this disorder:

  • Low birth weight (usually under 2.5 kilograms)
  • Delayed growth and small stature
  • Developmental delay
  • Limb differences (missing limbs or portions of limbs)
  • Small head size (microcephaly)
  • Thick eyebrows, which typically meet at midline (synophrys)
  • Long eyelashes
  • Short upturned nose and thin downturned lips
  • Long philtrum
  • Excessive body hair
  • Small hands and feet
  • Small widely spaced teeth
  • Low-set ears
  • Hearing impairments
  • Vision abnormalities (e.g., ptosis, nystagmus, high myopia, hypertropia)
  • Partial joining of the second and third toes
  • Incurved 5th fingers (clinodactyly)
  • Gastroesophageal reflux
  • Seizures
  • Heart defects
  • Cleft palate
  • Feeding problems
  • Hypoplastic genitalia
Children with this syndrome are often found to have long eyelashes, bushy eyebrows and synophrys (joined eyebrows). Body hair can be excessive and affected individuals are often shorter than their immediate family members. CdLS can give rise to its own array of complexities. Children with CdLS often suffer from gastrointestinal tract difficulties, particularly gastroesophageal reflux. Vomiting, intermittent poor appetite, constipation, diarrhea or gaseous distention are known to be a regularity in cases where the GE tract problems are acute. Symptoms may range from mild to severe.

CdLS may include behavior problems, including self-stimulation, aggression, self-injury or strong preference to a structured routine. Many children with CdLS exhibit autistic-like behaviors. Behavior problems in CdLS are not inevitable. Many behavior issues associated with CdLS are reactive (i.e., something happens within the person's body or environment to bring on the behavior) and cyclical (comes and goes). Often, an underlying medical issue causes a change in behavior. Once the medical issue is treated, the behavior diminishes.

My hubby found this forum and asked me to have a look. I did and I was hocked. Like many of the parents here, I am a mother of a unique child.

My 3rd child Taeyon was born premature at 35 weeks. He was born in Dubai UAE as our family has been living here for the past 4.5 years.

Taeyon spend his first month in the ICU as he weighs only 1.48kg at birth. Not only does he has upper limbs abnormalities (max. 2 fingers on each arm and the left arm cannot be straighten), he also has bilateral cleft palate and gaps in his heart. He was eventually diagnosed with Cornelia de Lange Syndrome (CdLS) which is rare affecting approx.

There were many questions in our minds. Why didn’t the amnio test indicate this? Why didn’t the gynae detect his deformed hands during the numerous detailed scans? So many ‘Why?’ but there were no good answers. There were few useful resources we found on the internet and we learned that CdLS happens due to a mutation of genes and it could happen to anyone.
 

Angelmum

Moderator
Trisomy 18 / Edwards syndrome

Trisomy 18, also known as Edwards syndrome, is a genetic disorder caused by the presence of all or part of an extra 18th chromosome. Unlike Down syndrome (the most common Trisomy 21), which also is caused by a chromosomal defect, the developmental issues caused by Trisomy 18 are associated with medical complications that are more potentially life-threatening in the early months and years of life. 50% of babies who are carried to term will be stillborn, with baby boys having higher stillbirth rate than baby girls.

Trisomy 18 is a somewhat a common syndrome, not rare. It is three times more common in girls than boys. It occurs in around one in 6,000 live births.

A trisomy occurs when a baby has three #18 chromosomes instead of the normal two. This is something that happens at conception. And although many parents worry about this, it is important to know that parents have done nothing before or during pregnancy to cause this disorder in their child.


Types of Trisomy 18:
- Full Trisomy 18:
The most common type of Trisomy 18 (occurring in about 95% of all cases) is full Trisomy. With full Trisomy, the extra chromosome occurs in every cell in the baby's body. This type of trisomy is not hereditary. It is not due to anything the parents did or did not do—either before or during pregnancy.


- Partial Trisomy 18:
Partial trisomies are very rare. They occur when only part of an extra chromosome is present. Some partial Trisomy 18 syndromes may be caused by hereditary factors. Very rarely, a piece of chromosome 18 becomes attached to another chromosome before or after conception. Affected people have two copies of chromosome 18, plus a "partial" piece of extra material from chromosome 18.


- Mosaic Trisomy 18:
Mosaic trisomy is also very rare. It occurs when the extra chromosome is present in some (but not all) of the cells of the body. Like full Trisomy 18, mosaic Trisomy is not inherited and is a random occurrence that takes place during cell division.


Typical characteristics include:

  • Heart defects:
    • VSD (Ventricular Septal Defect): a hole between the lower chambers
    • ASD (Atrial Septal Defect): a hole between the upper chambers
    • Coarctation of the aorta: a narrowing of the exit vessel from the heart
  • Kidney problems
  • Part of the intestinal tract is outside the stomach (omphalocele)
  • The esophagus doesn’t connect to the stomach (esophageal artesia)
  • Excess amniotic fluid (polyhydramnios)
  • Clenched hands
  • Pocket of fluid on the brain (choroid plexus cysts)
  • Rocker bottom feet
  • Delayed growth
  • Small jaw (mycrognathia)
  • Small head (microcephaly)
  • Low-set ears
  • Strawberry-shaped head
  • Severe developmental delays
  • Umbilical or inguinal hernia

Would like to share my journey too and introduce everyone to Vera, the baby with Trisomy 18...at Love and a Leap of Faith

Vera has GDD and lots and lots of other medical issues.
 
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