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Long Qt Syndrome 6 Acquired Susceptibility To C3150954

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

A heart rhythm susceptibility marked by prolonged QT interval, predisposing to fast heart rates. Managed with medications and preventive measures against triggering factors.

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

Key facts at a glance

ICD-10
I45.81
ICD-11
BA00.0
Body system
cardiovascular
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Syncope

!

Chest discomfort

!

Ventricular fibrillation

Chest discomfort or palpitations

(cardiovascular)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Dizziness

(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

Beta-blocker therapy

Primary pharmacological management for acquired Long QT syndrome type 6 using beta-adrenergic blockade to reduce arrhythmia susceptibility and sudden cardiac death risk.

medication
2

Disease management and monitoring

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
3

Environmental trigger avoidance

Identification and elimination of environmental factors that may precipitate QT prolongation, including certain medications, herbal supplements, and electrolyte-depleting conditions.

lifestyle

Additional treatment options

Ambulatory ECG monitoring

Outpatient cardiac monitoring using Holter or patch devices to detect QT changes and arrhythmia episodes during daily activities and sleep.

monitoring

Left cardiac sympathetic denervation

Surgical intervention reserved for high-risk patients with recurrent torsades de pointes despite beta-blocker therapy. The procedure reduces sympathetic innervation to the heart.

surgical

Anxiety management and education

Psychological support and comprehensive patient education about the condition to reduce anxiety related to sudden cardiac death risk. May include counseling and support groups.

psychological

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Long Qt Syndrome 6 Acquired Susceptibility To C3150954?

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

Priori SG, Blomström-Lundqvist C, Mazzanti A, et al. 2015 ESC Guidelines for the management of patients with ventricular arrhythmias and the prevention of sudden cardiac death. Eur Heart J. 2015.

guideline2015
2

Schwartz PJ, Ackerman MJ, George AL Jr, Wilde AA. Impact of genetics on the clinical management of channelopathies. J Am Coll Cardiol. 2013.

review2013
3

Moss AJ, Zareba W, Benhorin J, et al. ECG findings in congenital long QT syndrome. J Cardiovasc Electrophysiol. 2015.

clinical_trial2015
4

Brennan T, Hartley T, Traylor M, et al. Computational approaches for classifying genetic variants of uncertain significance in long QT syndrome. Circ Genom Precis Med. 2022.

review2022

Medication Comparisons

Compare medications used to treat Long Qt Syndrome 6 Acquired Susceptibility To C3150954. 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