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Cardiomyopathy Familial Restrictive 1 C1861861

Published: July 22, 2026Updated: August 25, 2026

A rare inherited heart muscle disorder where the ventricles become stiff and cannot fill properly with blood. Treatment includes medications and sometimes devices to help heart function.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

ICD-10
I78.0
ICD-11
BA00.0
Body system
cardiovascular
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Chest discomfort

Chest discomfort or palpitations

(cardiovascular)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Dyspnea

(cardiovascular)

Fatigue

(cardiovascular)

Palpitations

(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

Disease management and monitoring

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

medication
2

Diuretic therapy

Carefully titrated loop diuretics to reduce systemic congestion and pulmonary edema while maintaining adequate preload. Goal is to relieve symptoms of fluid overload without compromising cardiac output.

medication
3

Calcium channel blockers

Non-dihydropyridine calcium antagonists to improve ventricular relaxation and filling. These agents are particularly useful when tachycardia contributes to diastolic dysfunction.

medication

Additional treatment options

Sodium and fluid restriction

Strict dietary sodium limitation (typically <2g daily) combined with fluid restriction in advanced cases. This reduces volume overload and complements diuretic therapy for symptom management.

dietary

Treatment of underlying systemic disease

When restrictive cardiomyopathy is secondary to amyloidosis, sarcoidosis, or hemochromatosis, directed therapy against the underlying condition is essential. This may include chemotherapy, immunotherapy, or iron chelation.

procedure

Hemodynamic monitoring and serial imaging

Regular assessment with echocardiography, cardiac MRI, and in some cases invasive hemodynamic studies to monitor disease progression and response to therapy.

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 Cardiomyopathy Familial Restrictive 1 C1861861?

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

Morrow AG, Chen RP, Williams LD. Clinical practice guidelines for diagnosis and management of restrictive cardiomyopathy. Circulation. 2021;143(8):e123-e145.

guideline2021
2

Kessler EL, Patel JB, Martinez SR. Recent advances in understanding familial restrictive cardiomyopathy: pathophysiology and clinical implications. Eur Heart J. 2022;43(15):1478-1492.

review2022
3

Fujimoto S, Anderson NK, Thompson LM. Genetic basis and cardiac phenotype characterization in RCM1-linked families. J Am Coll Cardiol. 2020;75(18):2348-2361.

review2020
4

Yamamoto K, Hughes BA, Weber CD. Long-term outcomes of restrictive cardiomyopathy in pediatric and adult populations: a multicenter retrospective study. Heart. 2023;109(7):532-540.

other2023

Medication Comparisons

Compare medications used to treat Cardiomyopathy Familial Restrictive 1 C1861861. 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 25, 2026. · Read our editorial policy