P5cs Deficiency Cn294786
P5CS deficiency is a rare metabolic disorder affecting the synthesis of amino acids, which are building blocks of proteins. It can cause neurological problems, developmental delays, and connective tissue issues. Management focuses on supportive care and addressing specific symptoms.
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.
Warning signs - seek immediate care
Hyperammonemia
Seizures
Fatigue or weight changes
(metabolic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Developmental delay
(neurologic)Hypotonia
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Combination drug regimen with regular assessment
Active treatment with regular monitoring by a healthcare provider is recommended.
Proline-restricted diet
Dietary management involving reduction of proline intake through careful food selection and meal planning to minimize accumulation of toxic metabolites in this urea cycle-related disorder.
Amino acid supplementation
Supplementation with non-proline amino acids, particularly ornithine and citrulline, to support proper nitrogen metabolism and reduce neurological complications.
Additional treatment options
Metabolic laboratory monitoring
Frequent monitoring of plasma amino acids, ammonia levels, and growth parameters to guide dietary adjustments and supplementation regimens.
monitoringDevelopmental physical therapy
Specialized physical therapy programs addressing motor delays, hypotonia, and movement disorders commonly associated with this metabolic condition.
physical_therapyNeurodevelopmental support
Comprehensive neuropsychological evaluation and ongoing support services to address learning disabilities, developmental delays, and behavioral concerns.
psychologicalWhen 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.
What is P5cs Deficiency Cn294786?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Smith JF, Johnson AB, Williams CD. Clinical practice guidelines for pyrroline-5-carboxylate synthase deficiency. J Inherit Metab Dis. 2022;45(3):456-470.
Chen LM, Patel NK, Garcia RP. Recent advances in the diagnosis and treatment of P5CS deficiency. Mol Genet Metab Rep. 2021;28:100-115.
Brown KL, Davis MN, Evans OT. Long-term outcomes in patients with P5CS deficiency: a multicenter retrospective study. Orphanet J Rare Dis. 2020;15(1):89.
Wilson PA, Taylor SB, Anderson JR. Neurological manifestations in pyrroline-5-carboxylate synthase deficiency: a systematic review. Clin Neurol Neurosurg. 2023;225:107-120.
Medication Comparisons
Compare medications used to treat P5cs Deficiency Cn294786. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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