Epidermolysis bullosa life expectancy and prognosis
Fact-checked by The prognosis of epidermolysis bullosa (EB), a group of conditions that cause the skin to be very fragile and prone to tearing, varies widely depending on subtype and other factors.
Genetic mutations cause most forms of EB by disrupting proteins important for skin structure, making the skin extremely delicate and prone to tearing. Frequent wounding can increase the risk of serious complications, including infections and skin cancer, which may shorten EB life expectancy.
Severe EB can be fatal, with life expectancy ranging from infancy to about 30 years, depending on symptoms. People with milder forms of EB may have normal or near-normal lifespans, though most will still require lifelong care and monitoring.
How EB type influences prognosis
There are four main types of EB, each associated with blistering in different skin layers, that vary in severity and long-term outlook:
- EB simplex (EBS)
- dystrophic EB (DEB)
- junctional EB (JEB)
- Kindler syndrome
Besides these main types of EB, which all have an underlying genetic cause, there is also a rare autoimmune disease that causes similar symptoms to DEB called EB acquisita (EBA).
Doctors may be able to predict possible outcomes and life expectancy by EB type, so identifying the type is an important part of long-term care planning. EB severity and prognosis also vary by subtype.
A major factor affecting life expectancy with EBÂ is squamous cell carcinoma (SCC), a type of skin cancer. Some people with EB have a high risk of developing aggressive SCC, which can be life-threatening.
EB simplex
EBS is the most common type of EB. Milder forms cause blistering that is often limited to the hands and feet, while more severe forms can lead to widespread blistering. EBS symptoms may become less severe with age.
While life expectancy in EBS is often normal, severe subtypes are sometimes associated with death in infancy. One rare subtype of EBS that’s associated with muscular dystrophy can also shorten lifespan.
Dystrophic EB
DEB often causes more long-term problems than EBS, although the severity and extent of blistering also depend on the subtype. Some DEB subtypes can result from inheriting a single mutated copy of a gene (dominant inheritance), while others require two mutated copies, one from each biological parent (recessive inheritance). Dominant DEB is generally less severe than recessive DEB.
People with certain recessive DEB subtypes have a particularly high risk of developing SCC during adolescence or young adulthood, which can shorten life expectancy.
Junctional EB
JEB is often a more severe type of EB and can significantly affect life expectancy. Infants with severe subtypes of JEB often don’t survive beyond the age of 2. However, individuals with less severe subtypes may have a normal or near-normal life expectancy.
SCC is a frequent complication of JEB, although it may develop later in life than it does for people with DEB.
Kindler syndrome
Kindler syndrome is a rare EB type with variable symptoms and severity. People with Kindler syndrome have a greater risk of SCC than healthy individuals, but a lower risk than those with JEB or recessive DEB. If they don’t develop skin cancer, some Kindler syndrome patients may have a normal life expectancy.
EB acquisita
Unlike other types of EB, EBA typically develops later in life. The prognosis depends on the severity of the symptoms and the response to treatment. Mortality directly related to EBA is rare. With proper treatment and management, patients with EBA can have a normal life expectancy.
Factors that can affect long-term outlook
In addition to type, other features of the disease can influence the long-term outlook for EB patients. Factors affecting EB prognosis may include:
- the extent and location of blistering
- infections or other complications
- problems with nutrition or growth
- timeline of identification and diagnosis
- access to specialized treatment
More extensive blistering and internal blistering can increase the risk of infections and other EB complications that may be life-threatening.
Some complications can also have profound effects on quality of life. For example, if blisters form in the mouth and throat, eating and swallowing may become more difficult, leading to nutritional problems. Repeated, extensive wounding and scarring can also affect mobility.
Timely diagnosis and treatment may help improve the outlook for EB.
How treatment, daily management affect outcomes
EB management and prognosis are linked, and proper care can help prevent and treat complications.
People living with EB often need to take steps to reduce the risk of new wounds forming, and active wounds typically require daily care. These aspects of treatment can help limit infections and promote healing, though they may be emotionally, socially, and physically draining for some people.
Besides managing wounds, regular follow-up care can help identify potential complications, including nutritional deficits, infections, or cancer. Early recognition and treatment may limit the severity of these events.
Supportive measures, including nutritional guidance, pain management, and mobility aids, may improve quality of life with EB. People with EB and their caregivers should work closely with a multidisciplinary care team to develop individualized strategies that fit their needs. Several organizations provide resources and community to support newly diagnosed EBÂ patients and families throughout this process.
Epidermolysis Bullosa News is strictly a news and information website about the disease. It does not provide medical advice, diagnosis, or treatment. This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.
