Short answer · Medically reviewed summary · Last updated: 2026-04-07
TL;DR: Brugada Syndrome is most commonly referred to by its eponym, though it is occasionally historically cited as "Sudden Unexplained Nocturnal Death Syndrome" (SUNDS) or "Idiopathic Ventricular Fibrillation." Medical professionals and international classification systems now exclusively use the term Brugada Syndrome to ensure clinical consistency and accurate patient identification. Why does Brugada Syndrome have multiple names? Brugada Syndrome was first formally described by brothers Pedro and Josep Brugada in 1992. Before this clinical definition, patients presenting with sudden, unexplained cardiac arrests were often categorized under broader, descriptive terms based on their symptoms or geographic location.
Brugada Syndrome synonyms
Other names for Brugada Syndrome: synonyms, acronyms and related terms used by doctors and patients.
TL;DR: Brugada Syndrome is most commonly referred to by its eponym, though it is occasionally historically cited as "Sudden Unexplained Nocturnal Death Syndrome" (SUNDS) or "Idiopathic Ventricular Fibrillation." Medical professionals and international classification systems now exclusively use the term Brugada Syndrome to ensure clinical consistency and accurate patient identification.
Why does Brugada Syndrome have multiple names?
Brugada Syndrome was first formally described by brothers Pedro and Josep Brugada in 1992. Before this clinical definition, patients presenting with sudden, unexplained cardiac arrests were often categorized under broader, descriptive terms based on their symptoms or geographic location. The evolution of the name Brugada Syndrome reflects the transition from descriptive, symptom-based labels to a precise, genetically and electrophysiologically defined disease entity. Understanding these synonyms is vital for patients reviewing older medical records or searching legacy literature.
What are the primary synonyms and historical terms?
While Brugada Syndrome is the standard terminology, you may encounter the following terms in clinical notes, older textbooks, or specific regional contexts:
- Sudden Unexplained Nocturnal Death Syndrome (SUNDS): A term frequently used in Southeast Asia, where the condition was historically recognized as "Lai Tai" in Thailand or "Bangungut" in the Philippines.
- Idiopathic Ventricular Fibrillation: An older, non-specific term used before the distinct ECG pattern of Brugada Syndrome was fully understood.
- Right Bundle Branch Block with ST-Segment Elevation: A descriptive, though incomplete, anatomical description of the characteristic ECG findings.
- Sudden Arrhythmic Death Syndrome (SADS): An umbrella term that sometimes includes Brugada Syndrome when a clear diagnosis has not yet been established.
How is Brugada Syndrome classified in medical databases?
To ensure global consistency, major medical organizations use standardized identifiers for Brugada Syndrome. These codes allow for accurate tracking in research and clinical settings:
- Orphanet: ORPHA130 (Brugada syndrome).
- OMIM (Online Mendelian Inheritance in Man): #601144 (Brugada syndrome 1).
- ICD-10/11: Classified under codes related to hereditary channelopathies (e.g., I49.8, Other specified cardiac arrhythmias).
Why is the term "Brugada Syndrome" preferred by clinicians?
Medical professionals currently use Brugada Syndrome because it is a specific, actionable diagnostic label that triggers standardized clinical protocols. Unlike historical names like "SUNDS," which only describe the outcome (sudden death), Brugada Syndrome directs clinicians toward specific management strategies, such as ICD (implantable cardioverter-defibrillator) evaluation, avoidance of certain medications, and genetic counseling for family members. With over 228 members in the DiseaseMaps.org community sharing their experiences, using the standardized name helps patients connect with others who have the same specific clinical profile.
Next steps
- Verify your records: If your medical documents use older terms, consult with a cardiac electrophysiologist to confirm your diagnosis is documented as Brugada Syndrome for insurance and emergency medical purposes.
- Connect with peers: Join the 228 members of the DiseaseMaps.org community to share experiences and learn how others navigate the terminology and management of this condition.
- Consult a specialist: Ensure you are under the care of a cardiologist specializing in inherited arrhythmias or channelopathies.
- Genetic Counseling: Because Brugada Syndrome is often hereditary, discuss family screening with a clinical geneticist.
Medical disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition.
References
- Orphanet: orpha.net (Search: Brugada syndrome)
- NIH GARD: rarediseases.info.nih.gov
- OMIM: omim.org (Entry #601144)
- Brugada Foundation: brugada.org
