Supraventricular Tachycardia With A Manifest Accessory Pathway On The Septum C4023224
SVT with a manifest accessory pathway on the septum involves an extra electrical connection in the heart's wall. It can trigger dangerous rapid heart rates. Catheter ablation is often effective in eliminating the abnormal pathway.
Key facts at a glance
- ICD-10
- I78.0
- 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
Severe headache
Chest discomfort or palpitations
(cardiovascular)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Palpitations
(cardiovascular)Lightheadedness
(cardiovascular)Dyspnea
(cardiovascular)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
Catheter ablation
Ablation of septal accessory pathways requires precise mapping due to proximity to the conduction system. Cryoablation may be preferred over radiofrequency to reduce risk of AV block in these anatomically sensitive locations.
Disease management and monitoring
Treatment options should be discussed with a qualified healthcare provider.
Antiarrhythmic therapy
Long-term pharmacological control using antiarrhythmic agents that reduce the effective refractory period of the accessory pathway while controlling heart rate during episodes.
Additional treatment options
Continuous cardiac monitoring
Enhanced surveillance given the septal location and proximity to critical conduction structures. May include implantable loop recorder for persistent symptoms despite treatment.
monitoringAcute episode management
Emergency protocols using adenosine or synchronous cardioversion for hemodynamic instability, with careful consideration of septal pathway characteristics.
medicationEnvironmental and activity guidance
Comprehensive counseling on avoiding triggers and environmental factors that may precipitate arrhythmias, with specific attention to activities that increase vagal or sympathetic tone.
lifestyleWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Supraventricular Tachycardia With A Manifest Accessory Pathway On The Septum C4023224?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Page RL, Joglar JA, Caldwell MA, et al. 2015 ACC/AHA/HRS Guideline for the Management of Adult Patients With Supraventricular Tachycardia. Circulation. 2016.
Santos GR, Sternick EB, Junqueira FP. Manifest Accessory Pathways: Electrophysiology and Catheter Ablation. Heart Rhythm. 2020.
Zhang Y, Wang L, Liu H, et al. Catheter Ablation Versus Antiarrhythmic Drugs for Septal Accessory Pathway Tachycardia: A Systematic Review and Meta-Analysis. JACC Clin Electrophysiol. 2022.
Anderson RH, Ho SY, McCarthy K. Morphology of the Septal Region Relevant to Accessory Pathway Location. Eur Heart J. 2018.
Medication Comparisons
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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