Carvajal syndrome: A Patient Guide

Carvajal syndrome is a rare genetic condition that fundamentally changes how the body’s cells hold together. It is caused by a mutation in the DSP gene, which provides the blueprint for a protein called desmoplakin. In a healthy body, desmoplakin acts like a type of “molecular glue” within structures called desmosomes, pinning cells together so they can withstand the constant stretching and pulling of daily life. When this glue is defective, the tissues that face the most mechanical stress—specifically the hair, the skin on the hands and feet, and the heart muscle—begin to show signs of wear and weakness over time ^[1][2].

While this guide addresses parents and guardians, it is equally important for patients navigating their own care, especially as they transition into adulthood. For most families, the diagnosis unfolds in a sequence that begins with visible “early warning signs.” Children with Carvajal syndrome are often, but not always, born with or soon develop very tightly coiled, “woolly” hair, followed by a significant thickening of the skin on their palms and the soles of their feet (palmoplantar keratoderma). While these features may initially seem like isolated skin or hair concerns, they are actually the first indicators of the underlying “glue” issue. Because these visible signs often appear years before any heart symptoms develop, they provide a vital window of opportunity for doctors to begin monitoring the heart early, long before a child feels any different ^[3][4].

The most critical part of Carvajal syndrome is how it affects the heart, specifically the left ventricle, which is the heart’s main pumping chamber. Over time, the lack of strong cellular glue can cause the heart muscle to stretch, weaken, or develop irregular rhythms, a condition known as a left-dominant dilated or arrhythmogenic cardiomyopathy. Because this is an autosomal recessive condition—meaning a child inherits a changed gene from each parent—it often appears in families with no previous history of heart disease. This can make the diagnosis feel like a sudden shock, yet understanding the genetic cause is the first step in creating a protective roadmap for your child’s health ^[5][6].

Managing life with Carvajal syndrome is focused on protecting the heart from unnecessary strain while supporting its function. This typically involves a combination of heart-supporting medications, consistent monitoring through advanced tools like Cardiac MRI, and sometimes the placement of an ICD (an internal defibrillator) to safeguard against life-threatening irregular rhythms. One of the most important lifestyle adjustments, based on current guidelines, is the avoidance of high-intensity competitive or endurance sports, as intense exertion can mechanically stress the weakened heart cells. By working closely with a specialized care team, families can focus on maintaining a high quality of life through careful monitoring and a proactive approach to heart and skin care ^[2][7].