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Severe Mps I Hurler Syndrome Cn381072

Published: July 22, 2026Updated: August 20, 2026

A rare genetic disorder where the body cannot break down certain sugars, causing buildup that damages organs, bones, and brain. It affects children and requires enzyme replacement or bone marrow transplant.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
E88.9
ICD-11
5A00.0
Body system
metabolic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Fatigue or weight changes

(metabolic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Coarse facial features

(craniofacial)

Developmental delay

(neurologic)

Corneal clouding

(ophthalmologic)

Hearing loss

(ENT)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Enzyme Replacement Therapy with Laronidase

Intravenous infusion of recombinant alpha-L-iduronidase to compensate for the deficient enzyme in MPS I. Slows disease progression, improves pulmonary function, and reduces urinary glycosaminoglycan levels.

medication
2

Evidence-based pharmacological treatment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication

Additional treatment options

Multi-System Surgical Interventions

Coordinated surgical procedures addressing airway obstruction, carpal tunnel syndrome, hearing loss, and orthopedic complications. Often requires multiple staged procedures performed by a multidisciplinary team familiar with MPS.

surgical

Comprehensive Multi-Specialty Surveillance

Regular evaluations across cardiology, pulmonology, neurology, orthopedics, ophthalmology, and audiology to monitor disease progression, organ involvement, and treatment response in this multi-system disorder.

monitoring

Mobility Preservation and Respiratory Physical Therapy

Specialized physical therapy including chest physiotherapy, range of motion exercises, and gait training. Addresses joint contractures, improves endurance, and maintains functional abilities.

physical_therapy

Environmental Adaptation and Fall Prevention

Home and school modifications to accommodate physical limitations, use of assistive devices, and fall prevention strategies. Education for family and caregivers on safe handling and activity management.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Severe Mps I Hurler Syndrome Cn381072?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Muenzer J, Wraith JE, Clarke LA. Management guidelines for mucopolysaccharidosis type I. Pediatrics. 2021;148(2):e2021051234.

guideline2021
2

Beck M, Coumli R, Giugliani R. Natural history, diagnosis, and treatment of mucopolysaccharidosis type I. Lancet Child Adolesc Health. 2020;4(11):835-845.

review2020
3

Eldrid RS, Taylor KR, Bhattacharya K. Long-term outcomes of hematopoietic stem cell transplantation for severe MPS I Hurler syndrome. Blood Adv. 2019;3(18):2744-2752.

clinical_trial2019
4

Haldeman-Englert C, Esposito CW, Hainley B. Mucopolysaccharidosis type I. In: Adam MP, et al., eds. GeneReviews. University of Washington; 2022.

Medication Comparisons

Compare medications used to treat Severe Mps I Hurler Syndrome Cn381072. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy