Information About SADS Conditions
Electrical Conduction Problems – when the heart’s electrical signal either does not get produced properly, does not travel the way it should through the heart, or both. Some electrical conduction problems are caused by inherited cardiac rhythm disorders.
Inherited Cardiac Rhythm Disorders can be categorized into two broad groupings:
Some Electrical Conditions
– Brugada Syndrome
– Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT)
– Long QT Syndrome (LQTS)
Some Structural Conditions
– Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC)
– Dilated Cardiomyopathy (DCM)
– Hypertrophic Cardiomyopathy (HCM)
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC)
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is a rare but serious inherited heart condition that affects the heart muscle, leading to abnormal heart rhythms and, in some cases, sudden cardiac arrest.
Brugada Syndrome
Brugada syndrome is a rare but serious inherited heart condition that affects the way electrical signals are transmitted in the heart. This can cause an irregular heartbeat, which can be life-threatening.
Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT)
Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT) is a rare but serious inherited heart condition that affects the heart’s electrical system, leading to abnormal heart rhythms and, in some cases, sudden cardiac arrest.
Hypertrophic Cardiomyopathy (HCM)
Hypertrophic Cardiomyopathy (HCM) is a condition in which the heart muscle becomes thick, making it harder for the heart to pump blood. This thickening of the heart muscle can lead to problems such as shortness of breath, chest pain, light-headedness, and in some cases, heart failure.
Long QT Syndrome (LQTS)
Long QT Syndrome (LQTS) is caused by a problem with the electrical system of your heart, which controls the timing of your heartbeats. It is usually an inherited condition, but can also be acquired due to certain medications, electrolyte imbalances, or other medical conditions.
Other Inherited Cardiac Arrhythmia Disorders
View articles about Other Heart Rhythm Disorders:
A List of Cardiac Rhythm Disorders
Timothy Syndrome – CaV1.2 Calcium Channel Dysfunction
Timothy Syndrome – Expanding the Spectrum
Timothy Syndrome – Somatic Mosaicism Contributes to Phenotypic Variation


The Case for Cardiac Screening
View articles about Perspectives on Screening:
Electrocardiogram Screening for Disorders That Cause Sudden Cardiac Death in Asymptomatic Children
Genetic Testing – Informative Articles
View articles about Genetic Testing:
What to Expect from Genetic Testing?
