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Fatal Infantile Hypertrophic Cardiomyopathy Due To Mitochondrial Complex I Deficiency Cn242288

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

A severe heart condition in infants caused by defective energy production in cells. Supportive care is used; the condition is often life-threatening in early infancy.

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

Key facts at a glance

ICD-10
I78.0
ICD-11
BA00.0
Body system
cardiovascular
Severity
fatal
Chronic
false

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Chest discomfort or palpitations

Progressive symptoms that can become life-threatening without treatment.

Seek immediate medical attention if symptoms worsen.

!

Heart failure

!

Arrhythmia

!

Sudden cardiac arrest

Feeding difficulties

(cardiovascular)

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

Cardiac Function Monitoring

Regular echocardiograms and ECG monitoring to track cardiomyopathy progression and cardiac function in affected infants.

monitoring
2

Disease management and monitoring

Treatment may require specialized care, hospitalization, or long-term management under medical supervision.

procedure
3

Cardiac Supportive Medication

General cardiac supportive medications may be prescribed to help manage symptoms and support heart function, as determined by a pediatric cardiologist.

medication

Additional treatment options

Mitochondrial Supportive Nutrition

Specialized nutritional support with emphasis on foods and supplements that may support mitochondrial function, including CoQ10 and B-vitamins.

dietary

Family Psychological Support

Psychological counseling and support services for families navigating the challenges of caring for an infant with a severe mitochondrial disorder.

psychological

Coenzyme Q10 Supplementation

Coenzyme Q10 supplementation may be considered as a complementary approach to support mitochondrial electron transport chain function.

complementary

When 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.

Q

What is Fatal Infantile Hypertrophic Cardiomyopathy Due To Mitochondrial Complex I Deficiency Cn242288?

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

Fernandez-Vizarra E, Tiranti V, Zeviani M. Mitochondrial complex I deficiency: from tissue to gene. J Inherit Metab Dis. 2021.

review2021
2

Parikh S, Goldstein A, Karaa A, et al. Patient care standards for primary mitochondrial disease: a consensus statement from the Mitochondrial Medicine Society. Genet Med. 2022.

guideline2022
3

Scaglia F, Towbin JA, Greatbatch W, et al. Clinical spectrum, morbidity, and mortality in 118 pediatric patients with mitochondrial cardiomyopathy. Pediatr Cardiol. 2020.

other2020
4

Huang JH, Thorburn DR, Ryan M. Cardiac manifestations of mitochondrial disorders in infancy. Nat Rev Cardiol. 2019.

review2019

Medication Comparisons

Compare medications used to treat Fatal Infantile Hypertrophic Cardiomyopathy Due To Mitochondrial Complex I Deficiency Cn242288. 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