Pain is considered chronic when it lasts for weeks, months and even years. Etiologies include trauma and conditions such as arthritis cancer, infection, degenerative disc disease, and neuropathies. The most common complaints are headaches, low back pain arthritis and neurogenic pain (pain resulting from damaged central nervous system or peripheral nerves).
According to the American Academy of Pain Medicine, more than 1.5 million people worldwide suffer from chronic pain, and approximately 3-4.5% of the world population suffers from neuropathic pain with an increase rate of incidence complementary to age. In 2011, the Institute of Medicine of the National Academy pointed out that 116 million Americans suffer from chronic pain. The following condition is closer diabetes -. 25.8 million Americans (this is the total diagnosed with an estimate of diagnosis)
The total annual cost of health care due to pain varies from $ 560 billion to $ 635 billion (in 2010) in the United States. More than half of all hospital patients experience pain in the last days of his life. Although there are treatments to relieve pain most of those who die of cancer, research shows that 50-75% of patients die in moderate to severe pain. It is estimated that 20% of American adults (42 million people) report that pain or physical discomfort disrupts their sleep a few nights a week or more.
In 2006, the National Institute of Health Statistics survey indicated that LBP was the most common chronic pain (27%). This was followed by headache or migraine pain (15%), neck pain (15%) and facial pain or pain (4%). Back pain is the leading cause of disability in Americans under 45 years old. More than 26 million Americans between the ages of 20-64 experience frequent back pain.
How does chronic pain affect quality of life? NIHS The survey revealed that almost two thirds (59%) of respondents reported harmful impact on your overall enjoyment of life. More than three quarters (77%) reported feeling depressed; 70% said they have trouble concentrating; 74% said their energy level is affected by pain; and 86% reported an inability to sleep well.
Chronic pain is very complex and difficult health problem to treat. One reason is that the more time passes, the more systems are affected. Then there is the phenomenon of pain syndrome awareness. This is where the awareness of receptors is related to inflammatory non-inflammatory mediators and others in the nerve ending. Basically, the nerve fires in a lower threshold than before and even stimuli relatively mild or harmful activate receptors, causing more pain. This can occur to the extent that pain can be constant, even without a triggering event. You can also increase in intensity and in other parts of the body.