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Htra1 Disorder Cn381196

Published: July 22, 2026Updated: August 26, 2026

HTRA1 disorder is a genetic condition linked to the HTRA1 gene that can affect blood vessels and neurological function. It may cause small vessel disease and related symptoms. Care involves managing vascular and neurological complications.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 26, 2026Editorial policy

Key facts at a glance

ICD-10
G40.909
ICD-11
8A00.0
Body system
neurologic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Ischemic stroke

!

Visual impairment

Cognitive decline

(neurologic)

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Gait disturbance

(neurologic)

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

Antihypertensive therapy

Blood pressure control is essential in HTRA1-related cerebrovascular disease to reduce risk of stroke and slow disease progression. ACE inhibitors or ARBs may provide neurovascular protection beyond blood pressure control.

medication
2

Medication management with follow-up

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

medication
3

Regular neuroimaging surveillance

Periodic MRI imaging to monitor white matter changes, lacunar infarcts, and disease progression. Helps guide treatment decisions and assess intervention effectiveness.

monitoring

Additional treatment options

Cardiovascular risk modification

Comprehensive approach including smoking cessation, regular exercise, and weight management to reduce vascular risk factors that compound HTRA1-related pathology.

lifestyle

Antiplatelet therapy

Low-dose aspirin or other antiplatelet agents may be considered for secondary stroke prevention in HTRA1-related small vessel disease.

medication

Neuropsychological support

Cognitive assessment and support services address executive dysfunction and memory changes common in HTRA1 disorders. Provides coping strategies and family education.

psychological

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 Htra1 Disorder Cn381196?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Htra1 Disorder Cn381196. 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 26, 2026. · Read our editorial policy