How Do I Transition to Adult Care for Morquio Syndrome?

Transitioning from a pediatric care team to adult specialists is a multi-year journey that requires strategic planning, organization, and a shift toward self-advocacy. For young adults with Morquio syndrome (Mucopolysaccharidosis type IV or MPS IV), this transition usually begins in the early to mid-teens ^[1][2]. Moving away from a centralized children’s hospital to a more fragmented adult healthcare system means you and your family must actively build a new multidisciplinary team, securely transfer a lifetime of complex medical records, ensure seamless continuity of enzyme replacement therapies, and prepare new providers to handle the severe anesthesia and cervical spine risks associated with the disease ^[3][4].

The Transition Timeline

Switching to adult care should not happen overnight. Best practices recommend a gradual handover to ensure no gaps in treatment ^[4][5].

• Early to Mid-Teens (Ages 13-15): Begin discussing the transition. The pediatric team can help assess “transition readiness” ^[1][6]. This means practicing fundamental skills:
  • Can you explain your disease in two sentences?
  • Can you name your medications and their dosages?
  • Do you know what to do in an emergency?
• Late Teens (Ages 16-18): Start identifying adult specialists and practicing speaking directly with doctors. Crucially, address the legal and insurance shifts that occur at age 18. Parents lose automatic legal rights to medical information at this age. Prepare legal documents, such as HIPAA release forms and a medical power of attorney or healthcare proxy, if you want your parents to remain involved in your care ^[7].
• Young Adulthood (Ages 18-21+): Execute the formal transfer of care. The young adult takes the lead on health management, with parents stepping into a supportive advisory role.

Building Your Adult Care Team

Adult medicine is generally more segmented than pediatric care. You will need a network of providers capable of managing the progressive complications of Morquio syndrome ^[8]. The core team should include:

• Adult Metabolic Specialist or Geneticist: To oversee the general progression of the disease, manage Enzyme Replacement Therapy (ERT), and coordinate overall care.
• Orthopedic Spine Surgeon: To monitor skeletal complications, particularly in the neck ^[9].
• Cardiologist and Pulmonologist: To track heart valve function and respiratory capacity, which are major long-term areas of concern ^[3].
• Ophthalmologist and Audiologist/ENT: To monitor for sensory issues like corneal clouding and hearing loss, which occur in a significant portion of patients ^[10][11].
• Physical Therapist/Physiatrist: To assist with chronic joint pain, endurance, and prescriptions for wheelchairs or other Durable Medical Equipment (DME).

The Challenge: Finding adult specialists familiar with pediatric-onset rare diseases can be difficult. It is often necessary to leverage patient advocacy groups (such as the National MPS Society) and specialized metabolic clinic directories to locate experienced, willing providers.

Critical Logistics and Records: The “Health Passport”

Transferring records is about distilling a lifetime of medical history into a highly readable format. Create a comprehensive Health Passport that includes baseline sensory reports (vision/hearing) and your current DME prescriptions. Most importantly, it must highlight the critical safety and logistical hurdles for adults with MPS IV:

Anesthesia and Airway Risks

Adult providers must know that routine procedures requiring anesthesia are exceptionally high-risk for Morquio patients ^[3]. Due to altered airway anatomy, anesthesiologists must plan for difficult intubations. Ensure your records clearly state your individualized airway management history, emphasizing protocols that maintain spontaneous breathing and the past successful use of specific tools like videolaryngoscopy (using a camera to place a breathing tube) or awake fiberoptic intubation ^[12].

• Action Item: Create a physical “Anesthesia Emergency Card” for your wallet and store a digital copy in your smartphone’s Medical ID.

Cervical Spine Instability

Patients with MPS IV frequently experience atlantoaxial instability (looseness in the joints at the top of the neck) and are at severe risk for spinal cord compression ^[9][13]. Any new doctor must understand that your neck must be strictly stabilized during surgery, often requiring intraoperative neurophysiological monitoring (IONM) to ensure the spinal cord is not injured while asleep ^[14].

• Action Item: Transfer your baseline cervical spine MRIs (in neutral and flexion/extension, if deemed safe) to your new adult orthopedic team to establish what your baseline spinal cord status looks like.

Maintaining Ongoing Therapies

Transitioning weekly Enzyme Replacement Therapy (ERT) is heavily dependent on insurance logistics. Well before turning 18, work with a social worker or your pharmaceutical company’s case manager to secure adult insurance approvals, establish care at an adult infusion center, or transition to adult home health nursing services.

Empowering the Patient

Ultimately, a successful transition relies on the young adult’s ability to advocate for themselves ^[1]. You will undoubtedly encounter emergency room doctors, nurses, and specialists who have never heard of Morquio syndrome. You must be empowered to say, “I have a rare disease, my neck is unstable, and I am a high-risk anesthesia patient. You need to read my emergency protocol before doing anything.” Rehearsing these conversations ensures you are prepared to protect yourself in the adult healthcare system.