Cardioencephalomyopathy Fatal Infantile Due To Cytochrome C Oxidase Deficiency 4 C4225304
A rare inherited mitochondrial disorder impairing cellular energy production. It affects infants and causes severe heart, brain, and muscle problems. It is life-limiting, with care focusing on symptom management.
Key facts at a glance
- ICD-10
- E88.9
- ICD-11
- 5A00.0
- Body system
- metabolic
- Severity
- fatal
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Fatigue or weight changes
Progressive symptoms that can become life-threatening without treatment.
Seek immediate medical attention if symptoms worsen.
Lactic acidosis
Cardiomyopathy
Encephalopathy
Muscle hypotonia
(musculoskeletal)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
Intensive Care Monitoring Protocol
Close monitoring of vital signs, metabolic markers, and organ function in coordination with specialized mitochondrial disease centers to provide early intervention for complications.
Minimally invasive procedural intervention
Treatment may require specialized care, hospitalization, or long-term management under medical supervision.
Individualized Nutritional Therapy
Development of personalized nutrition plans by metabolic specialists that account for individual energy requirements, metabolic preferences, and tolerance patterns.
Additional treatment options
Gastrostomy Tube Placement
Surgical placement of feeding tubes for long-term nutritional support when adequate oral intake cannot be maintained, improving quality of life and nutritional status.
surgicalIntegrative Supportive Therapies
Incorporation of complementary approaches such as massage therapy, music therapy, and gentle developmental activities to enhance comfort and provide sensory stimulation.
complementaryCaregiver Education and Training
Comprehensive education of caregivers regarding disease management, emergency recognition, equipment use, and care techniques to optimize home care capabilities.
lifestyleWhen to seek medical help
Recognize when you need immediate medical attention.
Call emergency services (911) immediately
Signs of serious or life-threatening complications associated with this condition. Immediate medical evaluation is required.
Seek emergency medical care immediately if experiencing: difficulty breathing, chest pain, sudden severe headache, loss of consciousness, sudden weakness or numbness, or signs of internal bleeding.
Frequently asked questions
Common questions about this topic.
What is Cardioencephalomyopathy Fatal Infantile Due To Cytochrome C Oxidase Deficiency 4 C4225304?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
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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