Long Qt Syndrome 3 6 Digenic C3276241
A rare genetic form of Long QT Syndrome involving variations in multiple genes that affect heart rhythm. Like other types, it can lead to dangerous irregular heartbeats. Management includes medication, lifestyle changes, and regular cardiac monitoring.
Key facts at a glance
- ICD-10
- I45.81
- 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
Sudden cardiac arrest
Syncope
Palpitations
Seizure
Chest discomfort or palpitations
(cardiovascular)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
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
Beta-blocker therapy
First-line pharmacological treatment using non-selective beta-blockers to reduce sympathetic stimulation and prevent arrhythmia triggers. Beta-blockers significantly reduce cardiac events in LQT1 and LQT2 subtypes.
Disease management and monitoring
Active treatment with regular monitoring by a healthcare provider is recommended.
ICD implantation
Implantable cardioverter-defibrillator placement for high-risk patients with history of cardiac arrest, syncope, or documented sustained ventricular tachycardia despite beta-blocker therapy.
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.
What is Long Qt Syndrome 3 6 Digenic C3276241?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
Compare medications used to treat Long Qt Syndrome 3 6 Digenic C3276241. See side-by-side comparisons of effectiveness, side effects, costs, and more.
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