In a rare medical case, two brothers in Delhi have been diagnosed with the same rare genetic heart disease, with their diagnoses occurring 11 years apart. The brothers, both residents of the national capital, were found to suffer from arrhythmogenic right ventricular cardiomyopathy (ARVC), a condition that affects the heart muscle and can lead to sudden cardiac arrest.
The First Diagnosis
The elder brother, now 38 years old, was first diagnosed with ARVC in 2012 after experiencing recurrent fainting spells and palpitations. At that time, he underwent extensive testing, including electrocardiograms and echocardiograms, which revealed structural abnormalities in his heart's right ventricle. Genetic testing confirmed a mutation in the PKP2 gene, known to be associated with ARVC. He was treated with medication and an implantable cardioverter-defibrillator (ICD) to prevent sudden cardiac death.
The Second Diagnosis 11 Years Later
In 2023, the younger brother, aged 27, began experiencing similar symptoms, including chest pain and shortness of breath during exercise. After consulting with cardiologists at a Delhi hospital, he was also diagnosed with ARVC. Genetic testing revealed the same PKP2 gene mutation. The younger brother is now being managed with medications and is being evaluated for an ICD.
Understanding ARVC
ARVC is a genetic disorder characterized by the replacement of heart muscle tissue with fatty or fibrous tissue, primarily in the right ventricle. This leads to arrhythmias and an increased risk of sudden cardiac death, especially in young athletes. The condition is often inherited in an autosomal dominant pattern, meaning a single copy of the mutated gene can cause the disease.
Dr. Rajesh Sharma, a senior cardiologist involved in the case, emphasized the importance of family screening when a genetic heart condition is identified. "When one family member is diagnosed with ARVC, it is crucial to screen all first-degree relatives, as they may be at risk," he said. "Early detection can prevent life-threatening complications."
Implications for Genetic Screening
This case underscores the need for increased awareness and genetic testing for families with a history of unexplained cardiac events or sudden deaths. Genetic counseling can help individuals understand their risks and make informed decisions about lifestyle modifications and treatment options.
Both brothers are currently under regular follow-up and are doing well with their respective treatments. Their case has been reported in a medical journal to highlight the importance of long-term surveillance in families with inherited heart diseases.
