Long Qt Syndrome 12 C2751830
Long QT Syndrome type 12 is an inherited heart rhythm disorder caused by genetic mutations affecting cardiac ion channels. It can cause dangerously fast heartbeats and increase sudden cardiac death risk, typically managed with beta-blockers and lifestyle modifications.
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
exercise-induced syncope
palpitations during exertion
seizure-like episodes triggered by exercise
sudden cardiac arrest during exercise
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
Beta-blockers remain first-line therapy for Long QT Syndrome 12, providing protection against exercise-induced and stress-related arrhythmias.
Disease management and monitoring
Active treatment with regular monitoring by a healthcare provider is recommended.
Implantable cardioverter-defibrillator (ICD)
High-risk Long QT Syndrome 12 patients, particularly those with documented ventricular arrhythmias, benefit from ICD implantation for continuous arrhythmia protection.
Additional treatment options
Stress management program
Structured cognitive-behavioral therapy and relaxation techniques to help patients with Long QT Syndrome 12 manage emotional triggers that can prolong QT interval.
lifestyleLeft cardiac sympathetic denervation
Video-assisted thoracoscopic denervation procedure for refractory Long QT Syndrome 12 patients who continue experiencing events despite optimal medical therapy.
surgicalMagnesium supplementation
Intravenous magnesium may be administered acutely during arrhythmic events in Long QT Syndrome 12, while oral supplementation may provide modest benefit in some patients.
complementaryWhen 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 12 C2751830?
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 12 C2751830. 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