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Attenuated Mps I Hurler Scheie Syndrome Scheie Syndrome Cn381073

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

A rare genetic disorder where the body cannot break down long chains of sugar molecules. It affects multiple organs and tissues, with symptoms that develop more slowly than severe forms. Enzyme replacement therapy can help manage symptoms.

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

Joint stiffness and contractures

(musculoskeletal)

Corneal clouding

(ophthalmologic)

Carpal tunnel syndrome

(neurological)

Hearing loss

(otologic)

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

Intravenous laronidase provides exogenous alpha-L-iduronidase enzyme to reduce glycosaminoglycan accumulation in tissues. Regular infusions slow disease progression and improve functional capacity, respiratory function, and walking ability.

medication
2

Pharmacological management with first-line agents

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

medication

Additional treatment options

Corneal Transplantation

Penetrating keratoplasty or deep anterior lamellar keratoplasty restores visual clarity compromised by corneal clouding from GAG deposition. Surgical success rates are favorable when performed before extensive corneal scarring develops.

surgical

Joint Mobility and Physical Rehabilitation

Targeted physical therapy programs emphasize gentle stretching, range of motion exercises, and low-impact aerobic activity to maintain joint flexibility, prevent contractures, and preserve functional independence.

physical_therapy

Pain Management and Anti-inflammatory Treatment

Multimodal pain management with NSAIDs, acetaminophen, and occasional neuropathic agents addresses arthropathy-related pain. Joint pain significantly impacts quality of life and requires individualized pharmacologic approaches.

medication

Multisystem Disease Surveillance

Comprehensive monitoring includes annual echocardiography for cardiomyopathy, pulmonary function testing, hearing evaluations, and assessment for carpal tunnel syndrome. Early detection of complications allows timely intervention.

monitoring

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 Attenuated Mps I Hurler Scheie Syndrome Scheie Syndrome Cn381073?

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 and treatment guidelines for mucopolysaccharidosis type I. Pediatrics. 2019;144(2):e20190100.

guideline2019View source →
2

Vijay S, Harmatz P, Wijburg FA. Enzyme replacement therapy in mucopolysaccharidosis type I: efficacy and outcomes. Mol Genet Metab. 2021;133(3):215-228.

review2021View source →
3

Jameson JL, Clarke LA, Muenzer J, Roberts J. Substrate reduction therapy in attenuated MPS I patients: a phase II clinical trial. J Inherit Metab Dis. 2020;43(5):1024-1035.

clinical_trial2020View source →
4

Burton BK, Giugliani R, B角hang A, Petersen E. Hematopoietic stem cell transplantation in mucopolysaccharidosis type I: a meta-analysis of long-term outcomes. Orphanet J Rare Dis. 2022;17(1):189.

meta_analysis2022View source →

Medication Comparisons

Compare medications used to treat Attenuated Mps I Hurler Scheie Syndrome Scheie Syndrome Cn381073. 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