What is arrhythmogenic right ventricular dysplasia?
Arrhythmogenic right ventricular dysplasia / cardiomyopathy (ARVD/C) is a rare familial disorder that may cause ventricular tachycardia and sudden cardiac death in young, apparently healthy individuals. The clinical hallmark of the disease is ventricular arrhythmias, arising predominantly from the right ventricle.
Is ARVC genetic?
ARVC is inherited as an autosomal dominant trait, meaning that the risk of a family member inheriting an abnormal gene is 50% for all offspring of the genetically affected proband, whether male or female.
How long do people with ARVC live?
We concluded that ARVC at locus ARVD5 is a lethal, fully penetrant, sex-influenced morbid disorder. Median life expectancy was 41 years in affected males compared to 71 years in affected females (relative risk 6.8, 95% CI 1.3–10.9). Heart failure was a late manifestation in survivors.
What causes J wave?
There are four principal causes of J waves, namely hypothermia, Brugada syndrome, early repolarization and hypercalcemia. Figure 1. Osborn wave (J wave). These waves occur due to hypothermia, hypercalcemia, early repolarization and Brugada syndrome.
Can you play sport with ARVC?
For now, it is clear that competitive sports should be avoided in patients with ARVC. Participation in moderate- to high-intensity recreational sports is also discouraged.
What causes Osborn waves?
J waves, also known as Osborn waves or the camel-hump sign, can be caused by hypercalcemia, brain injury, subarachnoid hemorrhage, and cardiopulmonary arrest from oversedation, vasospastic angina, or ventricular fibrillation.
What does J wave indicate?
Abstract. The “J wave” (also referred to as “the Osborn wave,” “the J deflection,” or “the camel’s hump”) is a distinctive deflection occurring at the QRS-ST junction. In 1953, Dr. John Osborn described the “J wave” as an “injury current” resulting in ventricular fibrillation during experimental hypothermia.
What does an Osborn wave look like?
The Osborn wave (J wave) is a positive deflection seen at the J point in precordial and true limb leads. It is most commonly associated with hypothermia. These changes will appear as a reciprocal, negative deflection in aVR and V1. The J point in the ECG is the point where the QRS complex joins the ST segment.
Arrhythmogenic Right Ventricular Dysplasia. Arrhythmogenic right ventricular dysplasia (ARVD) is a rare type of cardiomyopathy. It occurs if the muscle tissue in the right ventricle dies and is replaced with scar tissue. This disrupts the heart’s electrical signals and causes arrhythmias. Symptoms include palpitations and fainting after physical…
What does ARVD stand for in cardiology?
Arrhythmogenic Right Ventricular Dysplasia. Arrhythmogenic right ventricular dysplasia (ARVD) is a rare type of cardiomyopathy. It occurs if the muscle tissue in the right ventricle dies and is replaced with scar tissue.
How is right ventricular dysplasia treated?
The diagnosis of ARVD is confirmed if the patient has these characteristics: Arrhythmias (supraventricular tachycardia, ventricular tachycardia or ventricular fibrillation, especially with exercise) How is Arrhythmogenic Right Ventricular Dysplasia Treated? There is no known curative treatment for ARVD.
What is the clinical hallmark of right ventricular tachycardia (RVT)?
The clinical hallmark of the disease is ventricular arrhythmias, arising predominantly from the right ventricle. The pathological hallmark of the disease is fibrofatty replacement of right ventricular myocardium.