HALT THE HURT!
Dealing with Chronic Pain
From the FMS Global News Desk of Jeanne Hambleton March 2012 NIH Research Matters News in Health
Pain—it is something we have all experienced. From our first skinned knee to the headaches, back pain and creaky joints as we age, pain is something we encounter many times. Most pain is acute and goes away quickly. But in some cases, when pain develops slowly or persists for months or even years, then it is called chronic pain, and it can be tricky to treat.
Chronic pain is a huge problem. Over 115 million people nationwide—about 1 in 3 Americans—suffer from some kind of long-term pain. It is the leading reason that people miss work.
NIH-funded scientists are working to better understand and treat chronic pain. They are uncovering the intricate pathways that lead to long-term pain. And they are looking for approaches beyond medication that might help you control your pain.
Chronic pain differs in many ways from acute pain. Acute pain is part of the body’s response to an injury or short-term illness. Acute pain can help prevent more serious injury. For instance, it can make you quickly pull your finger away from a hot stove or keep your weight off a broken ankle. The causes of acute pain can usually be diagnosed and treated, and the pain eventually ends.
But the causes of chronic pain are not always clear.
“It’s a complex problem that involves more than just the physical aspects of where the hurt seems to be,” says Dr. John Killen, deputy director of NIH’s National Center for Complementary and Alternative Medicine.
“There is a lot of accumulating scientific evidence that chronic pain is partly a problem of how the brain processes pain.”
Chronic pain can come in many forms, and it accompanies several conditions including low-back pain, arthritis, cancer, migraine, fibromyalgia, endometriosis and inflammatory bowel disease. These persistent pains can severely limit your ability to move around and perform day-to-day tasks. Chronic pain can lead to depression and anxiety. It is hard to look on the bright side when pain just will not go away. Some experts say that chronic pain is a disease itself.
The complexities of chronic pain can make it difficult to treat. Many of today’s medications for chronic pain target inflammation. These drugs include aspirin, ibuprofen and COX-2 inhibitors. But if taken at high doses for a long time, these drugs can irritate your stomach and digestive system and possibly harm your kidneys. And they do not work for everyone.
“With hard-to-treat pain, the opioids are also used, sometimes in combination with the other drugs,” says Dr. Raymond Dionne, who oversees some of NIH’s clinical pain research. Opioids include prescription painkillers such as codeine and morphine and brand-name drugs such as Vicodin, Oxycontin and Percocet.
Opioids affect the processes by which the brain perceives pain. If used improperly, though, opioids can be addictive, and increasingly high doses may be needed to keep pain in check.
“As with all drugs, you have to find a balance between effectiveness and side effects,” says Dionne. He and other researchers have studied potential new pain medications to learn more about how they work in the body. But for the most part, pain medications are similar to those used 5 or more decades ago. That’s why some researchers are looking for approaches beyond medications.
“One thing we know is that currently available drug therapies do not provide all the answers. Many people find that medications do not fully relieve their chronic pain, and they can experience unpleasant side effects,” Killen says.
“Evidence on a number of fronts, for several conditions, suggests that mind and body approaches can be helpful additions to conventional medicine for managing chronic pain.”
Research has shown that patients with chronic low-back pain might benefit from acupuncture, massage therapy, yoga or cognitive-behavioral therapy (a type of talk therapy).
NIH-funded scientists have also found that people with fibromyalgia pain might find relief through tai chi. This mind-body technique combines meditation, slow movements, deep breathing and relaxation.
But how much these approaches truly help is still an open question. Studies of pain relief can be difficult to interpret. Researchers must rely on patients to complete questionnaires and rate their own levels of pain.
One puzzler is that the exposure to the exact same pain-causing thing, or stimulus, can lead to completely different responses in different people. For example, when an identical heat stimulus is applied to different people’s arms, one may report feeling uncomfortable, while another might say that the pain is extreme.
“How do we account for these differences? We have now learned that genes play a role,” says Dr. Sean Mackey, who heads Stanford University’s neuroscience and pain lab.
“Some differences involve our personality and mood states, including anxiety.”
Mackey and his team are using brain scans to gain insights into how we process and feel pain. One study found that a painful stimulus can activate different brain regions in people who are anxious than in those who are fearful of pain.
In another study, volunteers were taught strategies that could turn on specific brain regions. One technique involved mentally changing the meaning of the pain and thinking about it in a non-threatening way.
“We found that with repeated training, people can learn how to build up this brain area, almost like a muscle, and make its activity much stronger,” says Mackey.
“That led to a significant improvement overall in their pain perception.”
The researchers also found that different types of mental strategies, such as distraction, engaged different brain regions.
Another study found that intense feelings of passionate love can provide surprisingly effective pain relief.
“It turns out that the areas of the brain activated by intense love are the same areas that drugs use to reduce pain,” says Mackay.
“We cannot write a prescription for patients to go home and have a passionate love affair,” says Mackey.
“But we can suggest that you go out and do things that are rewarding, that are emotionally meaningful. Go for a walk on a moonlit beach. Go listen to some music you never listened to before. Do something that is novel and exciting.”
That is a prescription that should be painless to try.
Tips for Pain Relief
Keep your weight in check. Extra weight can slow healing and make some pain worse, especially in the back, knees, hips and feet.
- Pain may make you inactive, which can lead to a cycle of more pain and loss of function. Ask your doctor if exercise might help.
Get enough sleep. It will improve healing and your mood.
Avoid tobacco, caffeine and alcohol. They can set back your treatment and increase pain.
Get the right medical help. If your regular doctor hasn’t found a helpful approach for pain relief, ask to see a pain specialist.
Join a pain support group. Talk with others about how they deal with pain. Share your ideas and thoughts while learning from those in the group.
DRY EYES AND MOUTH?
You May Have Sjögren’s Syndrome
From the FMS Global News Desk of Jeanne Hambleton March 2012 NIH Research Matters News in Health
If your eyes and mouth feel as dry as a desert, there are many possible causes, such as bad air quality and certain medications. But if you have long-lasting, uncomfortable dryness in your eyes and mouth, along with fatigue or pain and swelling in some of your joints, you may have a condition called Sjögren’s syndrome.
Sjögren’s (pronounced SHOW-grins) syndrome affects as many as 4 million people nationwide. Men and women of all ages can develop the condition, but it most often shows up in women in their 50s and 60s. The disorder is 9 times more common in women than in men.
Sjögren’s syndrome arises when the body’s immune system, which ordinarily attacks invading bacteria and viruses, starts killing off the body’s own moisture-producing cells. The condition can occur on its own or alongside other diseases, such as lupus or rheumatoid arthritis, in which the immune system mistakenly attacks parts of the body.
In some cases of Sjögren’s, the immune system attacks several parts of the body, including the eyes, mouth, joints and internal organs. Because the disorder has such varying effects, diagnosing Sjögren’s syndrome can take a long time.
“The average time to diagnose Sjögren’s is about 7 years from the first symptoms, because the symptoms can be very subtle,” says Dr. Gabor Illei, head of the Sjögren’s Clinic on the NIH campus in Bethesda, Maryland.
Physicians use several tests to make a diagnosis. These include measuring tear and saliva flow, blood tests, and biopsies. In the biopsy test, a surgeon removes a small saliva-producing gland from the lip and looks at it under a microscope. The blood tests and biopsies let physicians know if the body’s immune system is attacking saliva-producing cells.
Since so many of the body’s systems can be affected, people with Sjögren’s syndrome often need to see several specialists. These can include an ophthalmologist for the eyes, an oral disease specialist or a dentist who has experience with dry mouth, and a rheumatologist, who can manage and coordinate care.
Many treatments for Sjögren’s syndrome aim to relieve the symptoms of dryness. For patients with mild dryness, over-the-counter artificial tears can help with dry eye. Sips of water and sugar-free candies can help with dry mouth. Because saliva usually protects teeth from decay, people with dry mouth need to be careful to avoid sugary candies, and to take care of their teeth.
For more severe symptoms, several medications are available or in development. Two current drugs boost saliva production, and another can increase tear production. Some promising new drugs are being tested to treat symptoms that affect other parts of the body.
The Sjögren’s Clinic at NIH has several ongoing clinical trials under way.
“We are very patient oriented,” says Illei. “We do clinical studies. Some are just observational, so we follow the disease over time. Some are interventional—for example, trying out a new treatment.”
The goal of the clinic is to find the causes of Sjögren’s syndrome and how to treat it. If you have Sjögren’s syndrome and are interested in participating in a clinical trial, learn more about trials near you at http://clinicaltrials.gov.
Sjögren’s syndrome is a chronic condition, and there is no cure. However, treatment can improve symptoms and prevent problems like cavities and eye infections. Sjögren’s syndrome can be complex, but a primary care doctor or rheumatologist can help you manage your treatments and all the hurdles along the way.
Easing Sjögren’s Symptoms
Take sips of water for dry mouth.
Use sugar-free candies and gums.
Use artificial tears for dry eyes.
Use a humidifier for dry indoor air.
Keep your teeth clean and see a dentist regularly.
ELDERLY FALL RISK GOES UP WITH THESE DRUGS
From the FMS Global News Desk of Jeanne Hambleton Posted August 14, 2014 by Stone Hearth News
The risk of fall injury in relation to commonly prescribed medications among older people—a Swedish case-control study
Eur J Public Health (2014) doi: 10.1093/eurpub/cku120 First published online: July 31, 2014 Bernhard M. Kuschel, Lucie Laflamme and Jette Möller
Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden Correspondence: Jette Möller, Department of Public Health Sciences, Karolinska Institutet, Widerströmska huset.
Background: Older people not only consume more medication but they also represent a group at high risk for adverse effects such as injurious falls.
This study examines the association between the medications most commonly prescribed to older people in Sweden and fall injuries.
Methods: This is a population-based, matched, case-control study of 64 399 persons aged ≥ 65 years in Sweden admitted to hospital because of a fall injury between March 2006 and December 2009, and four controls per case matched by gender, date of birth and place of residence.
The prevalence of the 20 most commonly prescribed medications was compiled for the 30-day period before the index date. The association between those medications and injurious falls was estimated with odds ratios and corresponding 95% confidence intervals using conditional logistic regression.
Results: Ten of the top 20 most commonly prescribed medications, and in particular the three medications affecting the central nervous system (CNS), significantly increased the risk of fall injuries (highest for opioids and antidepressants) but not the seven cardiovascular ones, who had a protective effect (lowest for angiotensin converting enzyme inhibitors and selective calcium channel blockers).
Conclusions: The adverse effect of several commonly prescribed medications may seriously threaten their positive effects on the well-being and quality of life of older people. Their association with injurious falls is of particular concern as falls are prevalent and often leading to severe consequences. This needs to be acknowledged so physicians and patients can make informed decisions when prescribing and using them.
See you tomorrow. Jeanne