Living with dementia with Lewy bodies (DLB) can vary greatly from individual to individual. Generally speaking, however, most people with DLB live for an average of 8-10 years after their initial diagnosis. This can range from as little as 2-3 years to as much as 15-20 years.
For many people with DLB, the disease progresses slowly over time, with cognitive decline and physical symptoms becoming more pronounced as the disease progresses. As the disease progresses, the person's ability to perform activities of daily living, such as bathing, dressing, and preparing meals, can become impaired.
The most common cause of death in people with DLB is an infection, such as pneumonia or sepsis. Other common causes of death are falls or complications due to immobility, such as pressure sores. It is important to note that DLB can also co-occur with other conditions, such as Parkinson's disease, which can further complicate the prognosis.
In addition to medical treatments, there are many ways that people can manage the symptoms of DLB in order to maintain their quality of life. These can include lifestyle changes, such as eating a healthy diet, exercising regularly, and staying socially connected. It is also important to create a supportive environment for the person with DLB. This can include providing them with reminders and prompts for daily activities, as well as providing emotional support and understanding when they become confused or frustrated.
Ultimately, the length of time a person can live with DLB is dependent on a variety of factors, including the individual's overall health and lifestyle, as well as the progression of the disease. While there is no cure for DLB, with proper management, many people are able to live a full and meaningful life.