health

Cervical Surgery Relieves Mystery Itch

Ask the Doctors by by Eve Glazier, M.D. and Elizabeth Ko, M.D
by Eve Glazier, M.D. and Elizabeth Ko, M.D
Ask the Doctors | September 28th, 2020

Dear Doctors: A friend had to get one of his cervical discs replaced because it got damaged from surfing. He was surprised when his doctor said that getting a new disc is also why a constant itch along his right forearm finally went away. What’s the connection? Why would neck surgery fix that itch?

Dear Reader: You’re referring to a condition known as brachioradial pruritus. Pruritus is just a fancy word for itchiness. Brachioradial refers to the source of the itch -- a certain muscle located in the forearm. Known as the brachioradialis, it flexes the forearm at the elbow. Taken together, the term brachioradial pruritus refers to localized itching, tingling, burning or stinging sensations that run along the outer part of the forearm. It can affect one or both arms and, in rare cases, the itchiness can spread to the neck, shoulders and even the lower leg. The condition is more common in women than in men, particularly those with lighter skin tones, and it occurs most often between the ages of 45 and 65. Instead of irritants that directly affect the skin, the itchiness from this condition arises due to a nerve disorder. That’s why scratching the area won’t alleviate the itch. Some people with the condition have reported that scratching only makes the itchiness worse.

The exact cause of brachioradial pruritus isn’t quite clear. However, it’s generally understood to be related to spinal problems that affect the nerves that animate the arm. Conditions such as osteoarthritis, in which the cartilage of the joints wears away, or a herniated disc, as in your friend’s case, can lead to brachioradial pruritus. Sun damage appears to play a role, as well. Prolonged exposure to UV light from the sun, which can damage certain nerve fibers in the skin, may cause increasing sensitivity to sensations of pain and itch. Studies have indicated that people who take part in a lot of outdoor activities -- like tennis or golf, which expose them to the sun and, thus, to ultraviolet light -- may be at increased risk of developing the condition. Some theories suggest that brachioradial pruritus is caused by a combination of nerve damage and UV exposure.

Diagnosis includes a physical exam to pinpoint the location of the itching. This is usually followed by imaging tests, such as an MRI or an X-ray, to identify the presence of any spinal abnormalities. Treatments vary. Some people are helped by using ice packs on the affected areas. Topical products, such as cooling menthol creams or local anesthetic creams, may be prescribed. Physical therapy to stretch and strengthen the spine can also bring relief.

In your friend’s case, it appears that the herniated disc in his cervical spine had compressed a nerve. That, along with spending so much time in the sun while surfing, put him squarely in the at-risk category for the condition. In the course of replacing the damaged disc, his surgeon was able to release the pinched nerve, which allowed the maddening itch of brachioradial pruritus to abate.

(Send your questions to askthedoctors@mednet.ucla.edu, or write: Ask the Doctors, c/o UCLA Health Sciences Media Relations, 10880 Wilshire Blvd., Suite 1450, Los Angeles, CA, 90024. Owing to the volume of mail, personal replies cannot be provided.)

health

What Makes a Food ‘Processed’?

Ask the Doctors by by Eve Glazier, M.D. and Elizabeth Ko, M.D
by Eve Glazier, M.D. and Elizabeth Ko, M.D
Ask the Doctors | September 25th, 2020

Dear Doctor: I know that processed foods aren’t good for me and should be avoided, but I still have some questions. Could you please explain why they are unhealthy and provide some specific examples of such foods?

Dear Reader: Any food, when it’s changed from its original form, can be considered to be processed. That includes chopped spinach in the frozen food aisle, yogurt in the dairy case or whole-grain bread from your local bakery. To set apart the highly manipulated, salty, fatty and sugary foods we’ve grown to love and crave, they’ve been given a category of their own: “ultra-processed” foods. These include the flavored puffs and chips in the snack aisle, luncheon meats, manufactured ice cream products, processed cheeses, boxed baking mixes, many prepackaged frozen entrees, the majority of fast food menus, candy, sodas and other sugary drinks, instant noodles, energy drinks and even so-called energy bars, to name just a few.

Ultra-processed foods have gone through multiple steps, such as milling, grinding, dehydrating, frying, rolling, rehydrating and extruding. They also include a wide range of additives, which are used to arrive at a product that is markedly different from the original forms of its ingredients. Added salt, fats and sugars amp up flavor. Dyes are used to achieve a specific look. Ingredient lists often end with tongue twisters of chemicals used to create a specific texture or mouthfeel, and to prevent spoilage. Food industry whistleblowers have long claimed that many ultra-processed foods are carefully formulated to spark cravings, encourage overeating and create brand loyalty.

When eaten in moderation as an occasional treat -- heavy emphasis on “moderation” and “occasional” -- these types of foods can be fine. It’s when they become dietary staples that problems arise.

Our bodies are complex mechanisms. It takes a wide range of fresh foods to deliver the vitamins, minerals and other nutrients needed for optimal health. But ultra-processed foods are often low in fiber and nutrients. Many lean so hard on added salt to punch up flavor that a single serving puts a serious dent in your daily sodium budget. The empty calories of ultra-processed foods deliver unhealthful amounts of fat, salt and sugar, and they replace the healthful whole foods that truly feed the body. We now know that eating a diet high in these types of foods is linked to a range of illnesses, including increased risk of Type 2 diabetes, heart disease, stroke, obesity, depression, digestive issues, cancer and early death.

That said, it’s also important to be realistic and find a diet you’re able to follow long-term. Eating is pleasurable, and snack foods can be tasty and fun to eat. With that in mind, we advise our patients to aim for a diet that’s 80 percent good, 20 percent cheat. For those with existing health issues, such as diabetes or hypertension, scale that back to 90 percent good and 10 percent cheat. Focus on healthful eating, but allow yourself the occasional naughty detour. You’ll arrive at a dietary plan you can sustain -- and that sustains you.

(Send your questions to askthedoctors@mednet.ucla.edu, or write: Ask the Doctors, c/o UCLA Health Sciences Media Relations, 10880 Wilshire Blvd., Suite 1450, Los Angeles, CA, 90024. Owing to the volume of mail, personal replies cannot be provided.)

health

Dad’s Diuretic Could Be Linked to Gout

Ask the Doctors by by Eve Glazier, M.D. and Elizabeth Ko, M.D
by Eve Glazier, M.D. and Elizabeth Ko, M.D
Ask the Doctors | September 23rd, 2020

Dear Doctor: Can you please explain what gout is and how it’s treated? Our father is 81 years old and was just told that he has gout. His doctor says it could be because he takes water pills for swelling due to congestive heart failure. Does that make sense?

Dear Reader: Gout is a type of arthritis that can occur due to the presence of high levels of uric acid, a metabolic waste product, within the body. The kidneys eliminate uric acid via the urine, and some is excreted via the gut. But sometimes the accumulation of uric acid in the blood can exceed the amount that is excreted. This can lead to the buildup of tiny needle-shaped deposits, known as urate crystals, in and around the joints.

The condition causes periodic episodes of swelling and pain, which can be intense. Symptoms of someone’s first gout attack typically begin at the base of the big toe. However, in subsequent flare-ups, gout can also affect the other joints of the lower leg, including in the foot, ankle and knee. Although gout can affect either sex, it’s three times more common in men than in women. For men, the onset typically begins in middle age, often around age 40 and onward. Women become more susceptible to developing gout during and after menopause.

Diagnosis begins with a physical exam, and includes tests to measure blood levels of uric acid. The patient is asked about the location and severity of their pain, when the attacks first began and how quickly they arise. This last bit of information is important because one of the hallmarks of gout flares is their sudden onset, usually at night or in the early morning. Many patients report pain so severe that it wakes them from sleep. The affected joints are often swollen, sensitive to pressure and warm to the touch. Gout flares tend to subside over the course of a week or two. Some people have frequent flares, while others can go months, or even several years, between attacks.

A diet high in meat, fish, seafood, alcohol and sugary drinks can contribute to elevated blood levels of uric acid. Having diabetes or taking certain medications, including the diuretics that your dad is taking to manage his edema, or swelling, can impede the removal of uric acid. So can being overweight. A family history of gout is also considered to be a risk factor for developing the condition.

Treatment focuses on managing pain and swelling during an attack, as well as adopting preventive behaviors. These include staying hydrated, avoiding or limiting the use of alcohol, cutting back on meat, poultry and fish and maintaining a healthy body weight. If someone needs to lose weight, it’s important to do so gradually. Crash diets can have the effect of temporarily increasing levels of uric acid. In your father’s case, he should let his cardiologist know he has developed gout. It’s possible that a different type of diuretic may be helpful.

(Send your questions to askthedoctors@mednet.ucla.edu, or write: Ask the Doctors, c/o UCLA Health Sciences Media Relations, 10880 Wilshire Blvd., Suite 1450, Los Angeles, CA, 90024. Owing to the volume of mail, personal replies cannot be provided.)

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