Thank You

I wish I had the time to thank every person who has touched our lives!

There have been many friends, family members, neighbors, church members and even strangers who have showed great empathy, kindness and generosity towards us as we've learned about the boys' condition, not to mention throughout our entire lives.

We are humbled by the thoughtfulness of others and to know so many good people in the world.

We wish all the best to you and your families.

Eli in the Kindergarten Community Helpers Parade

 Each year in October, our Elementary school holds a parade where the kindergartners dress up as a community helper and march through the school in a parade.  Eli's teacher, Mrs. Beck, was thinking that Mrs. Bowles would just push Eli in his stroller, but Mrs. Bowles (Eli's Para-pro aide) told her that Eli could do it! I'm so glad she had faith in him, because I was expecting to find him being pushed down the sidewalk and it was so nice to see him walking! Here is a video of Eli in the Parade. It isn't easy for him to push his walker that far, but he makes it to the end with lots of help and cheers from everyone. Great job Eli!!

Appeal decision

Quick Update: Jeanine Utz with the Syner-G program at University of MN tried to put through Zavesca initially, it was denied. They sent in an appeal a few weeks ago. We just received a letter yesterday denying that appeal.

It said, "The reason for denial of your appeal was: Per physician review, current plan criteria only allow coverage of Zavesca for those who are 18 years of age or older with a diagnosis of type 1 Gaucher disease. M. Moore, MD. 11-7-14"

Seems obvious right? We already know that Zavesca is meant for Gaucher disease, that is why this is a clinical trial, to see if it will help, along with the ketogenic diet, for patients with lysosomal disorders.

I got an email today from Jeanine, she told me they would appeal a second time. I believe CVS has 14 days to respond to the appeals, so we'll wait and see what happens. I'm not sure if the insurance will cover it.

Hospice and Seizures

I decided that if I'm going to share, I might as well share. It isn't easy for us, but I'm laying it all out there. When I am searching for stories about other kids' situations and struggles with Gm1, I want to know every detail. So maybe sharing our experiences can educate or help others who are searching for information about this disease.

Hospice 

Dr. Cochran, Eli and Evan's pediatrician told us that she would contact Hospice for us, just so we could meet with them and learn about the program. Dr. Cochran used to be the director for the hospice program here in Tucson, so she knows her stuff and has experience helping many children with terminal illnesses.  

So because of this referral, Denise Freedman RN came over to visit with us earlier this week. She is the head nurse for the children's hospice program. She recommended that we sign up right now and not wait until something bad happens before calling and signing up. She's had many years of experience working with children in this situation and also through Bone Marrow transplants.  In her experience she has seen a number of family say they don't think they need hospice yet and often shortly after she'll get an urgent call, saying they need to sign up right away. She prefers to begin care before they are really bad off and try to treat  illness the best they can and just help along the way. 

She explained that hospice is not just something you get when the children are about to die and you've given up. It is for the support, comfort and aid of the entire family. The program here offers a team of professionals and connections to many resources available in the area; including a medical social worker, a primary registered nurse  who visits the home twice a week, the option to call at any time night or day if there is an emergency, volunteers, a bereavement specialist, and a home health aid, someone who can help with the personal care of the patient.   

I wasn't sure if Eli would qualify at this time, but she said because he has Gm1 and is at risk for aspirating, he would. So after discussing it, Brad and I met with her and signed the paperwork. We signed Evan up as well, so she can check out the both of them during her visits.  

My main concerns at this time are keeping our family relationships strong and close, rather than strained because of the situation, Laya's emotional state and attention,  watching out for seizures and choking with Eli,  and Evan's growing number of falls and hits/cuts to the head. 

Our pediatrician suggested that hospice has volunteers that could come and help Laya with her homework and be a friend to her. Denise said she would begin to set that up. That would help tremendously since Laya has been pushing me away a bit and acting out somewhat. It would be nice to have help with her. Homework has been an issue with her. 

Denise gave me some thickening agent for Eli's liquids that I am now putting into his water or juice I give him, and she will be able to continue to supply it for us. 

She will also begin working to get Evan some services such as a bit of respite care for him and a soft helmet to protect his head when he falls. He is a very busy guy, especially when I am unable to give him my undivided attention. Respite has been great for Eli, but I'm not able to get much done, since I still have Evan with me. He has a short attention span and needs a lot of watching.   

I am so grateful for the hospice program, and even though Eli will likely be with us for a while still, we will have the ability to keep him comfortable and give him the best care, medicine and resources that we have available. It is very comforting to know that I have a personal RN (an amazingly knowledgeable and experienced one at that) who will be checking Eli and Evan twice a week. I hope to learn and glean from their knowledge. It is also comforting to know that I will get help with Evan soon too, and hopefully we can figure out ways to improve his behavior. It is also great to know that Laya will get some attention as well. I wish that all cities had programs like this for their dying children. I feel so grateful.   The Church has also been so supportive and loving and I am grateful that we have that. There are so many families in the ward, as well as fantastic neighbors who I could call for help at any time, and they would answer that call with enthusiasm.
 I hope that I keep a grateful attitude and serve others throughout these upcoming years. There are many who are suffering in different ways and I hope I can have enough love and energy in me to help them out as well.  We all need each other.  

First noticeable seizures 

Eli's nose has been stuffed up and it has worried me a little bit, since I'm not sure how coordinated he is at breathing out of his mouth only at night. So a few nights ago I tried using a Nasal wash that our allergist had recommended for us and the kids. It seemed mildly successful since some gunk did come out, but all the water just rushed down the back of his throat and seemed to really bother him. He cried for a minute after that. I brought him out to the couch with me instead of putting him back into his bed, to keep him upright for a few minutes so he wouldn't choke on the water. He was very tired and lay on me, exhausted. 

Yesterday morning, while Evan was still in bed and Laya already at school, he still seemed to be really congested, so I decided to try the nasal wash again. He was in the bath tub at the time. So I tilted his head to the side and pushed the water through his nostril. Some gunk came out, but again no water came out the other side of his nostril, he was too stuffed up for it to pass all the way through. Immediately I knew something was wrong. He stopped breathing and just sat there, staring off. It was like Eli was gone for a few seconds. It was a really scary thing to see. I began shaking him, hitting his back. I was so confused, he was acting like he couldn't breathe, but he wouldn't choke or respond or anything. I felt terrible that I had done this to him and very scared. Very slowly, he began to move a little bit and somewhat respond. He still didn't cough or anything. I pulled him out of the bath tub and wrapped him up. He seemed to be breathing fine again, but still didn't seem quite himself.  

Nicolle, Eli's Habilitation person, came right after that. I told her what happened and she mentioned that he did seem a little off to her as well. Once Eli was dressed and ready, she sat down with him at the table to feed him breakfast as I took care of Evan. After a little while of feeding him, he just stopped again. He had a blank expression  and his face was turning blue. I ran over to him and yelled at him, and patted his back. After a few seconds of being in his face, he started to cry. He was really upset, scared and confused. Nicolle was crying as well. I just held him close and tried to comfort him, it took longer than usual. Nicolle mentioned afterwards that he clenched his fist right before it happened, which I hadn't seen.  

Nicolle suggested I call the Hospice nurse we had met with. She confirmed with me that it sounded like a seizure that might have been triggered by the body-shocking event of the nasal wash. She told me that he is not coordinated enough for unexpected water coming down the nasal passages and mentioned some other treatments for his congestion. I felt so bad that I had done that too him and am never using one of those with a child again!! She saw him the next day, and said she could tell his nasal passages were very congested, but his lungs sound clear.  

As she was checking Eli out, she did notice him slow down or stair off briefly as few times. I told her that he does that all the time. She thinks those are probably a type of absence seizure. He's probably been having mild ones for quite some time now and I didn't realize it.  

The whole event was very scary for me. I didn't like to see Eli like that. It was like he was just gone for a little bit and acting so strange. Today I felt a strengthening and renewed hope. I just need to hold on and be strong for my family.  

Eli looking cute before church one day. 

Evan likes to play with Eli's helmet, I have actually been putting a small bike helmet on him the past few days, it protected his head from a fall just yesterday!

Mom and Dad and sister Ashley (with little Henry) came to visit. We went to the Phoenix temple open house together. 

Eli came home from school with this cute hat during Dr. Seuss day at school. 

As soon as Laya saw Eli's hat, she got to work on her own. She just had to add the whiskers. 

Not the best Halloween we've had when it comes to costumes, but Eli had fun pushing his walker around the cul-de-sac. I didn't even get a picture of Evan in his cute Cow costume that both Laya and Eli have worn for previous years. I planned on putting it back on him after washing all the candy stain off of it to take a pic of him, but I haven't done it yet! The outfit is clean now, I just need to remember to do it!

 Laya came up with this costume the day before Halloween. At the beginning of the day Laya had a pillow under her shirt with a black belt and a homemade white beard. This is what she looked like at the end of the day! More like an elf than Santa. By the way, have you ever seen anyone dress up as Santa for Halloween? She's quite the individual. 

Evan has found Laya's baby a few times lately and likes to rock it in his arms. It's the cutest thing. He is so good at saying "cheese" as well. The best part about the baby is the pacifier. Evan LOVES pacies. He likes trying to put it in the baby's mouth, with a little help from Mommy.

Transplant Decision

We found out that Laya is not a carrier of GM1 (Yay!) and she is a perfect match for Evan. Knowing this, it did make the decision a little harder. But, we have decided not to go with a Bone Marrow transplant for Evan.

Please note: I am not a scientist or doctor! The following is what I I've learned based on info from the doctors and case studies on the internet. We had to learn as much as we could about a whole different field, that's why it was hard to make the decision, we didn't feel we knew enough about it. 

We have a few main reasons for not doing the transplant

1. We couldn't find any real evidence that doing a BMT would change the course of GM1. No guarantees, it would have been a gamble. We were initially hopeful about it, because of the success Bone Marrow transplants have had with Hurler's patients (MPS type I, a very similar diseases to ours has been able to maintain IQ over time!). But we also knew it didn't have much success, if any, with Tay Sachs disease, (GM2 Gangliosidosis). The studies we've found haven't changed the course of the disease and sometimes make the disease progress quicker. One article we found explained that GM1 Gangliosidosis works much more similarly to GM2 Gangliosidosis in the way it destroys brain cells.  MPS I seems to kill brain cells in a more round about way. (At least that's how I understand it) Once we came to that conclusion, we immediately decided not to do a BMT. We knew going into it, that everything would have to align perfectly for us to go through with a transplant. 
2. It would have been very hard on Evan. He is at the height of his life right now. He is able to play, climb, get into everything :) and live a pretty normal life. As the course of the disease takes him, he will lose skills from here on out. It would not have been fun and he would have regressed quicker through the process and possibly would not be able to gain those skills back even if the transplant was "successful." 
3. 10% chance he would die from the process or from complications by it. 
4. Another 10% chance the transplant would not be successful and he would have do get another transplant. (At least I believe that's what they told me)

Note: If Evan had Hurler Syndrome, we probably would have done a Bone Marrow transplant, since Laya was such a perfect donor for him and he has not had much mental regression (if any) from the disease. There would be a strong hope of prolonging much better mental stability and learning ability. 

Clinical Trial offers some hope for us: 

We are hoping to be involved (Evan and Eli) in the clinical trial called Syner-G using the drug Zavesca along with the Ketogenic diet. There is the theoretical possibility that it will slow down the progression of the disease and possibly halt it for a time. None of that has been proven yet, so up to this point, it is still all speculative. 

Jeanine Utz at UMN has been working with our insurance. First they tried to just put the drug through, it didn't work and they wanted a prior authorization. The insurance then denied the prior-auth, so now the team is working on an appeal. She said they would have the appeal done by 10/28/14. So we'll see what happens. She indicated that this was completely normal and frankly it usually happens this way. We shall wait and see. 

As we were trying to decide about transplant, I looked around the internet to find some data on some of these BMTs. Here are some links we found. 

My conclusion: Overall success of BMT in Hurler Syndrome - MPS I

http://www.nature.com/bmt/journal/v31/n12/full/1704105a.html 

http://www.raredr.com/articles/cord-blood-vs-bone-marrow-transplant-hurlers-syndrome

http://www.ncbi.nlm.nih.gov/pubmed/9672523

http://www.sciencedaily.com/releases/2013/11/131106084257.htm

http://asheducationbook.hematologylibrary.org/content/2011/1/285.full.pdf

BMT in Hunter syndrome - MPS II My conclusion: it hasn't shown much success Neurologically

http://www.ncbi.nlm.nih.gov/pubmed/19167723

http://www.ojrd.com/content/6/1/72
http://www.nature.com/bmt/journal/v25/n10/full/1702398a.html

http://pediatrics.aappublications.org/content/124/6/e1228.full

Tay Sachs, GM2 - Doesn't seem to change the course of the disease, may prolong life a bit if successful. 

Tay Sachs Disease: BMT and Enzyme Secretion

NTSAD Tay Sachs research

http://pediatrics.aappublications.org/content/128/5/e1233.full.pdf

http://019221f.netsolhost.com/cbt.shtml

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC508774/

Little Bone Marrow success in Tay-Sachs, Sandhoff and GM-1

http://www.ntsad.org/index.php/technology-approaches/bone-marrow-transplant

Three kids journey with TaySachs and BMT: This story can really freak you out if you are considering a transplant. I think the story is spun a certain direction, but the events are accurate. 

Part One

Part Two

Part Three

Part Four

http://www.cleveland.com/taysachs/  - Overview of the story

Article from a parent of Dakota http://019221f.netsolhost.com/dakota.shtml

Dakota at age 8 with her parents  - (Dakota lived to age 15, she died spring 2014, I believe.) http://www.godtube.com/watch/?v=KGLLWNNX

Animal Model

O'Brien et al. (1990) performed allogeneic bone marrow transplantation early in life in a case of canine GM1-gangliosidosis. Despite successful engraftment, no benefit was found.  Substrate reduction therapy. Platt FM1, Jeyakumar M. Author information Abstract The therapeutic options for lysosomal storage diseases (LSDs) have expanded greatly over the past decade, although for many disorders there is still no effective treatment. Given that the majority of LSDs involve pathological changes in both the brain and peripheral tissues, effective treatment of central nervous system (CNS) and peripheral manifestations still remains a considerable technical challenge. Type 1 Gaucher disease has two approved treatment modalities - enzyme replacement therapy (ERT) and substrate reduction therapy (SRT) - which have unique, independent and potentially complementary mechanisms of action. The availability of these two therapies has greatly increased the options for the effective clinical management of type 1 Gaucher disease. ERT involves the intravenous administration of fully functional enzyme that is taken up by cells and delivered to the lysosome, where it can compensate for the underlying enzyme deficiency. SRT uses an orally available, small molecule drug that inhibits the first committed step in glycosphingolipid biosynthesis. The aim is to reduce the rate of biosynthesis of glycosphingolipids to offset the catabolic defect, restoring the balance between the rate of biosynthesis and the rate of catabolism. SRT also has the potential to treat LSDs with CNS pathology, as the drug in clinical use (miglustat, Zavesca; Actelion Pharmaceuticals Ltd, Allschwil, Switzerland) crosses the blood-brain barrier. In this review, the current status of SRT for the treatment of Gaucher disease and other LSDs will be discussed, based upon preclinical and clinical studies. CONCLUSION: SRT is an oral alternative treatment option for patients with type 1 Gaucher disease unwilling or unable to receive ERT. With the recent reports of clinical improvement/stabilization of CNS manifestations following SRT in patients with Niemann-Pick disease type C, miglustat may also have a role to play in the management of patients with glycosphingolipid storage in the brain. Furthermore, as SRT synergises with other therapeutic modalities, it may also prove to be a key component of combination therapies in the future. Status at Minoryx Through its proprietary technological platform (SEE-Tx), Minoryx has identified a novel series of non-competitive pharmacological chaperones which are able to stabilize GLB1 and restore its enzymatic activity. These compounds are binding on a novel site identified through SEE-Tx and contrary to pharmacological chaperones targeting the active site, they do not inhibit GLB1. Also, Minoryx has established collaborations with many of the academic groups leading research on this field. Currently the project is at lead optimization and a development candidate is expected in the following months. Such compound would be a first-in-class drug for the treatment of GM1-glangliosidosis and/or Morquio B diseases.

Exhaustive list of GM1 Symptoms

 I tried to make this list as comprehensive with regards to possible symptoms as I could. I combined any of the information I have been able to find. 

Eli and Evan Leishman were diagnosed with GM1 Gangliosidosis Type II in August 2014

There is no established cure at this point, although treatment and study is being developed to possibly slow or arrest the progression of the disease.  

What is GM1 gangliosidosis? A type of Lysosomal Storage Disorder which also falls under the categories of Genetic Brain Disorders, Inborn Errors of Metabolism and Metabolic Disorder  

It is a beta-galactosidase-1 (GLB1) enzyme deficiency.  GM1 Gangliosidosis is an inherited disorder that progressively destroys nerve cells (neurons) in the brain and spinal cord. It is an inherited disease in which one or more enzymes in the lysosomes are defective. Lysosomes are cell's recycling centers, where proteins, fats and other molecules are broken down into their basic building blocks, which are then reused to make new molecules. Lysosomal storage diseases occur when lysosomes lack the enzymes they need to perform their recycling tasks, leading to abnormal accumulation of the molecules the lysosome is supposed to break down. 

Eli and Evan have been diagnosed with GM1 type 2, the late-infantile or juvenile type. There are 3 types of GM1 presented below, but the features can overlap significantly. Some believe GM1 to be a continuous disease spectrum instead of three distinct types. 

Symptoms of GM1 

*I starred the symptoms I've seen in my own children.

Neurologic findings  

*developmental delay, arrest and regression 

*Exaggerated startle reaction to loud noises. 

*Tonic-Clonic Seizure - generalized seizure that affects the entire brain.  

*Dementia – a loss of brain function that affects memory, thinking, language, judgment and behavior.  

*Speech delay then speech disturbance and speech loss (Type I - Infantile Types usually don't develop speech at all)

*profound intellectual disability 

*Severe psychomotor retardation -involves a slowing-down of thought and a reduction of physical movements in an individual. 

Muscular System (Often Neurologic in source)

Joint contractures - stiffness or constriction in the joints that restricts normal movement. It develops when your normally pliable connective tissues become less flexible. 

*Generalized Hypotonia (low muscle tone) initially, developing into spasticity.   

*Spasticity is stiff or rigid muscles. It may also be called unusual tightness or increased muscle tone. Reflexes (for example, a knee-jerk reflex) are stronger or exaggerated. The condition can interfere with walking, movement, or speech. 

*Muscle Weakness 

Hyperreflexia – Is defined as overactive or over-responsive reflexes. Examples of this can include twitching or spastic tendencies.

Generalized dystonia – painful muscle contractions resulting in uncontrollable distortions. It causes twisting and repetitive movements or abnormal postures.  

*Ataxia – a balance disorder, consisting of lack of voluntary coordination of  muscle movements. (Type I infantile cases are usually unable to develop the ability to sit or walk in the first place)

*Decerebrate rigidity (decerebrate response, extensor posturing) - it describes the involuntary extension of the upper extremeties in response to external stimuli. In decerebrate posturing, the head is arched back, the arms are extended by the sides, and the legs are extended.[6] A hallmark of decerebrate posturing is extended elbows.[12] The arms and legs are extended and rotated internally. 

*Growth Retardation 

Ophthalmologic findings

*Clouding of the clear outer covering of the eye (the cornea)

Loss of vision as the light sensing tissue at the back of the eye (the retina) gradually deteriorates  

cherry-red spot - about %50 develop it 

*Strabismus - Strabismus is a disorder in which the two eyes do not line up in the same direction, and therefore do not look at the same object at the same time. (Eli has had three eye surgeries to correct this, before his diagnosis)

Optic atrophy - the optic nerve, which carries impulses from the eye to the brain begins to waste away or deteriorate 

Retinal hemorrhage is a disorder of the eye in which bleeding occurs into the light sensitive tissue on the back wall of the eye. 

Blindness 

*Nystagmus is a term to describe fast, uncontrollable movements of the eyes. 

Dysmorphic features

(These features display in some infantile cases, but are usually not present with juvenile or adult)
Frontal bossing - a prominent, protruding forehead.

Depressed nasal bridge and broad nasal tip 

Large low-set ears  

Long philtrum - the skin between the nose and mouth 

Course skin, thick skin 

Gingival hypertrophy  - enlarged gums 

Macroglossia – unusually large tongue 

Hirsutism – excessive amounts of hair, broad hands and feet 

Brachydactyly - shortness of the fingers and toes. 

Facial Edema - or facial swelling  

Cardiovascular findings

Dilated and/or hypertrophic cardiomyopathy -  is a condition in which the heart becomes weakened and enlarged and cannot pump blood efficiently.  (common in Infantile Cases)

Atrial tachycardia is a type of atrial arrhythmia (faster heart rate) 

Skeletal abnormalities

*Lumbar Gibbus deformity is a form of structural kyphosis, where one or more adjacent vertebrae become wedged, producing a hump outward curviture in the lumbar region. (Eli's kyphosis in his lumbar spine was noticed by his mother a few months before he turned 3. He was prescribed a stiff body brace to wear 23 hours per day. He wore that for more than a year)

Dorso Lumbar Kyphoscoliosis - describes an abnormal curvature of the spine in both a coronal and sagittal plane. It is a combination of kyphosis and scoliosis. 

Digestive, Lymphatic and Respiratory System

Poor appetite, poor sucking in infants 

Hepatosplenomegaly (HSM) - enlarged liver and spleen 

Inguinal hernia – protrusion of abdominal cavity contents through the inguinal canal 
Umbilical Hernia - An umbilical hernia is an outward bulging (protrusion) of the abdominal lining or part of the abdominal organ(s) through the area around the belly button. 

*Swallowing disturbance,*spitting/throwing up and thicker mucous production (Started with spitting up after meals probably at least twice a day and coughing while drinking water or eating. At the beginning Eli was sent home multiple times from school because of throwing up, but he never turned out to be sick. (age 5) Then he had trouble swallowing water and would spit out at least half of the water out of the corner of his mouth while drinking. Got a feeding tube at age 6. As of 1/20/18 Eli's swallowing disturbance is including terrible choking episodes, even though he is tube fed only at this point (age 8). He has choking episodes from choking on spit up or thick saliva or secretions.)

Recurrent bronchopneumonia -  is the acute inflammation of the walls of the bronchioles.  

Reproductive System 

Swelling of the scrotum 

Other Rare symptoms

Angiokeratoma corporis diffusum (reported infrequently) also called Fabry disease 

Hydrops fetalis (has been reported) - is a serious condition in which abnormal amounts of fluid build up in two or more body areas of a fetus or newborn. 

*Prominent dermal melanocytosis (Mongolian spots) (Has been reported) - Mongolian  spots are flat, blue, or blue-gray skin markings near the buttocks that appear at birth or shortly thereafter. (I've seen mongolian spots on Evan's body much more than Eli's) 

Prognosis/Life Expectancy for GM1 Gangliosidosis

Prognosis will vary based on how aggressively parents choose to uphold life, but most sources say the following:

Type I Infantile Form

Type I is the most common form of the disease and usually becomes apparent by 6 months and can have most, if not all, of the symptoms listed above. 
Life Expectancy - Individuals with GM1 gangliosidosis Type I usually do not survive past early childhood, often succumbing during the second year of life because of infection and cardiopulmonary failure. 

*Type II Late infantile and juvenile forms

Age of Onset - Some sources I've found say age of onset for late-infantile is around 18 months of age and the age of onset for juvenile closer to 5 years. Other sources combine the two forms, late-infantile/juvenile form as having onset between 7 months and 3 years. Another source I've found completely takes out the juvenile type and describes the late infantile as having an onset typically between ages 1 and 3 years with the adult striking between ages 3 and 30. 

Symptoms -  

Type II can have all the same symptoms as Type I, but at a later onset (and with slower progression), with the exception of dysmorphic features, cherry red spots and enlarged organs which are not usually found with late-infantile and juvenile children. Common neurological symptoms include ataxia, seizures, dementia, and difficulties with speech.
Life Expectancy - Type II progresses more slowly than type I, but still causes a shortened life expectancy. People with the late infantile form typically survive into mid-childhood, (around 6-12 years) while those with the juvenile form may live into early adulthood. 

Type III or Adult onset

The third type of GM1 Gangliosidosis is known as the adult or chronic form, and it represents the mildest end of the disease spectrum. The age at which symptoms first appear varies in GM1 Gangliosidosis type III, onset generally during childhood or adolescence and by cerebellar dysfunction. 

Symptoms: The characteristic features of this type include involuntary tensing of various muscles (dystonia), abnormalities of the spinal bones (vertebrae), slowly progressive dementia, dysathria, dystonia, corneal clouding in some patients, short stature, mild vertebral anomalies and ataxia. Eye movements are normal. Angiokeratomas may develop on the lower part of the trunk of the body. Most patients have a normal size liver and spleen.  

Life expectancy varies among people with GM1 gangliosidosis type III, but a shortened life expectancy is likely.

Complications

Aspiration pneumonia - patients with G M1 gangliosidosis are at risk for aspiration pneumonia and recurrent respiratory infections resulting from neurologic compromise. 
Congestive heart failure may result secondary to cardiomyopathy.
Atlantoaxial instability Atlantoaxial instability (AAI) is characterized by excessive movement at the junction between the atlas (C1) and axis (C2) as a result of either a bony or ligamentous abnormality. Neurologic symptoms occur when the spinal cord is involved. This can develop because of abnormally shaped cervical vertebrae. If this occurs, patients should be monitored, and they eventually should undergo surgical stabilization to avoid the risk of spinal cord injury.