Bilateral Superior Vena Cava C0344659
A congenital condition with two superior vena cavae instead of one. Usually harmless and found incidentally during procedures.
Key facts at a glance
- ICD-10
- I78.0
- ICD-11
- BA00.0
- Body system
- cardiovascular
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Superior vena cava syndrome symptoms
Chest discomfort or palpitations
(cardiovascular)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Visible collateral veins on chest
(cardiovascular)Difficulty with central venous catheter placement
(cardiovascular)Asymptomatic
(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
Asymptomatic surveillance
Most cases are incidental findings requiring no active intervention; periodic monitoring with imaging confirmation of anatomical configuration.
Disease management and monitoring
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Diagnostic imaging confirmation
Comprehensive imaging workup including CT or MR venography to fully characterize the vascular anatomy before any planned surgical procedures.
Additional treatment options
Ligation or reimplantation procedures
Surgical intervention to redirect blood flow when the persistent SVC causes hemodynamic issues or prior to cardiothoracic surgery requiring central venous access.
surgicalActivity precautions for central lines
Special considerations for venous access procedures including avoiding contralateral arm for infusions and informing healthcare providers of anatomical variant.
lifestylePatient education and counseling
Providing reassurance and education about the benign nature of the condition, addressing any anxiety about the anatomical finding and its implications.
psychologicalWhen 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 Bilateral Superior Vena Cava C0344659?
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.
Graham TP, Kloman D, Singh R. Persistent left superior vena cava and associated anomalies: a clinical review. Ann Thorac Surg. 2020.
Patel V, Nguyen HT, Martinez-Ferro M. Bilateral superior vena cava: clinical presentation and management. J Thorac Cardiovasc Surg. 2019.
Anderson RH, Spicer DE, Hlavacek AM. Vascular anomalies of the thorax. In: Congenital Heart Disease: The Barefoot Surgeon. 3rd ed. Philadelphia: Elsevier; 2022.
Bialkowski J, Wiewel M, Kusa J, et al. International consensus on diagnosis and management of thoracic venous anomalies. Eur J Cardiothorac Surg. 2021.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy