As parents, we rely on routine tests to tell us our children are healthy. For Melanie and her husband, Ryan, in Vancouver, British Columbia, it took a routine eye doctor’s appointment to uncover a startling truth about their 12-year-old son, Masen, an energetic hockey player.

Masen’s diagnosis at age eight, after initial concerns a few months prior, was a rare metabolic disorder: Homocystinuria (HCU). Their journey is a powerful reminder of parental intuition, the importance of specialist care, and the enduring strength found in community.

What is Homocystinuria (HCU)? 🧬

HCU is an extremely rare genetic metabolic condition. Here’s what you need to know:

•  The Cause: HCU is a genetic disorder where the body cannot properly process protein from food.
• The Impact: This inability raises homocysteine levels. When these levels are high, they can cause a host of serious problems, affecting the eyes (which is how Masen was diagnosed), bones, brain, and leading to risks of blood clots, deep vein thrombosis, and strokes.
• The Missed Diagnosis: While HCU is tested for at birth during the newborn heel prick screening, the current test is only about 50% effective.
  
   

Melanie shared that the moment of the diagnosis felt like everything was about to change. The family was initially terrified, choosing to lean on each other during the testing phase, not sharing the fear with their loved ones until they had answers.

The Treatment: Diet, Formula, and Resilience

Masen’s condition is treatable, but it requires a significant lifestyle change.

• The Low-Protein Diet: Masen must adhere to a very low-protein diet for the rest of his life.
   
• Metabolic Formula: Because an extremely low-protein diet is unhealthy, Masen must drink a special metabolic formula multiple times a day. Melanie admits that while they are grateful for the formula, it unfortunately “tastes terrible”.
   
• Building Resilience: When talking to eight-year-old Masen about the changes, Melanie and Ryan focused on what they were doing to keep him strong and healthy. To encourage him, Melanie would mix her own “green strength” drink to mirror him taking his formula.
   
• A Hard Lesson: Melanie initially ate protein (like prawns/shrimp) in secret, but she eventually realized that she and Ryan needed to sit and eat normally in front of him. This difficult act of “sitting with him in that discomfort” was crucial for building his resilience as he grows older and is around others eating all types of food.
  
   

Masen’s Journey to See Clearly

The condition first showed up in Masen’s eyes, and without treatment from birth, he faced complications.

• Eye Complications: HCU causes the eyes’ lenses to shake. This can lead to the lenses detaching, which is a dangerous emergency.
   
• Double Surgery: To prevent this, Masen underwent two separate surgeries—one for each eye—just two weeks apart. Melanie admitted this was a scary and painful experience for him.
  
   
• New Vision: Today, Masen is doing well. He wears special contact lenses every day that make him “see wonderfully,” a significant relief, as he no longer has to worry about the risk of lens detachment.

Finding Strength in Community and Advocacy

Melanie was determined to find other families facing HCU.

• Connecting Online: She quickly found and joined HCU Network America on Facebook and Instagram.
   
• Conferences: The family has attended multiple conferences hosted by HCU Network America and CanPKU Plus in Canada. For Masen, who doesn’t enjoy the presentations, the real joy is the socialization part of meeting other kids with similar metabolic disorders.
  
   
• Driving Change: Melanie is now an advocate, sharing their story to spread awareness and push for improvements in the newborn screening test. She noted that some provinces in Canada still aren’t testing for HCU at all.
  
   

Resources to Learn More

• HCU Network America: @hcunetwork_America on Instagram.
   
• CanPKU Plus: @canadian.pku on Instagram, which covers HCU and allied metabolic disorders.

Meet the host: 

Katie Taylor is the co-founder and CEO of Child Life On Call, a digital platform designed to provide parents, kids, and the care team with access to child life services tools and resources. She is a certified child life specialist with over 13 years of experience working in various pediatric healthcare settings. Katie is the author of the children’s book, and has presented on the topics of child life and entrepreneurship, psychosocial care in the hospital, and supporting caregivers in the NICU setting both nationally and internationally. She is also the host of the Child Life On Call Podcast which features interviews with parents discussing their experiences throughout their child’s medical journey. The podcast emphasizes the crucial role of child life services in enabling caregivers both at and beyond the bedside.

Instagram.com/childlifeoncall

The Child Life On Call Podcast is for informational and educational purposes only. The content shared in each episode, including stories, discussions, and interviews, is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay seeking it because of something you heard on this podcast. The views and opinions expressed by guests on the Child Life On Call Podcast are their own and do not necessarily reflect those of Child Life On Call. Child Life On Call does not endorse any specific medical treatments, procedures, or opinions shared in the podcast. If you or your child are experiencing a medical emergency, call 911 or seek immediate medical attention. By listening to this podcast, you acknowledge that Child Life On Call and its affiliates are not responsible for any decisions made based on the information provided.

Facebook.com/childlifeoncall

linkedin.com/in/kfdonovan