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Tuesday, July 31, 2012
lipid profiles
Wednesday, July 25, 2012
prediabetes
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Wednesday, July 11, 2012
marriage in india
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Sunday, July 1, 2012
blunt injuries
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Monday, June 18, 2012
pica and eating mud
When you crave mud
DR GITA MATHAI
Hyhyhyhy
“My child does not eat” moaned the mother, “she refuses food.”
“Have you tried to figure out what she likes to eat?”
“I don’t think I can give her what she likes. I don’t think a diet of uncooked rice, mud and newspapers is healthy.”
Her logic cannot be faulted. Her daughter is a classical case of “pica,” the correct medical term for a perverted appetite, in which the person consumes non food items such as dirt, clay, raw rice, slate and chalk, paint, plaster, coffee grounds, cigarette ashes, cigarette butts, burnt match heads, rust, glue, hair, buttons, paper, sand, toothpaste, soap, sea shells, and even broken crockery. Pica is diagnosed if such items are eaten for a month or longer, after the age of two, by a mentally normal person unable to rationally control his or her behaviour.
Pica is not confined to India. It is an international phenomenon affecting 10-30 per cent of people of all ages and both sexes. It tends to be more common in the underprivileged, uneducated, mentally challenged and psychologically handicapped. It is aggravated by a lack of supervision.
In some areas, pica is culturally accepted. Consumption of clay and chalk is believed to protect against diseases such as jaundice, diarrhoea and morning sickness. Sometimes, it is believed to confer mystical powers, if eaten at the right time, like during a full moon. Another misconception is that it runs in families, with all members eating chalk or lime.
Many of these items are indigestible. Over a period of time they can get trapped inside the body, usually in the stomach or intestine, forming a hard lump called a bezoar. This has to eventually be surgically removed. Dirt and clay can lead to infection and parasitic infestation. Paint and newspapers can cause slow lead poisoning. Toothpaste damages intestinal villi. Even crunching ice and eating refrigerator frost damages teeth enamel. Lack of a nutritious diet can end in anaemia and malnutrition. Fatigue, palpitations, pallor, thinned out spooned concave nails, flattened tongue papillae, superficial erosions in the mucosa of the mouth and fissuring at the angles of the lips are the other effects.
Pica is different from bullemia nervosa, in which there are periodic intervals of binge eating. Unusually large amounts of a particular food item are consumed, with the feeling that the eating is out of control. The difference is that in bullemia edible items are consumed whereas in pica non-edible ones are eaten.
Children lack subtlety and openly exhibit their strange food preferences. They put everything into the mouth to feel its texture. This oral fixation is usually outgrown by the age of two but it can persists and metamorphise into adult pica.
Pregnancy has long been associated with accepted but peculiar food cravings, which unfortunately, is also accepted as the norm. Such cravings may be hidden from doctors, ignored by patients and condoned by family members.
Nutritional deficiency of iron, zinc or calcium may trigger appetite- regulating brain enzymes and specific cravings. The non-food items consumed in an effort to assuage this do not supply the deficient minerals, and the person is caught in a vicious cycle. The more they eat, the more they crave.
Geophagia (eating clay and mud) may become a habit, like having a cigarette in the morning. It may be an acquired behavioural response to unexpressed stress. It may be learned in childhood by watching other family members. It can in itself cause iron deficiency, aggravating the problem.
Emotional disturbances causing pica are more difficult to tackle, especially if the person is autistic, mentally challenged or has a psychiatric illness. Corporal punishment and ridicule only aggravates the problem, and is eventually self defeating.
Even though the cause is unproven, and varied, treatment is successful. Pica responds dramatically to iron, zinc, multivitamin and calcium supplements supported by regular deworming.
While administering these supplements, certain principles have to be kept in mind so that they are optimally absorbed. Zinc and iron compete for the same absorption sites in the intestine. They cannot be administered together as they “lock” the absorption site, and both are eventually not absorbed but eliminated. They need to be given separately on different days or at least 12 hours apart. Calcium precipitates with iron and zinc and prevents its absorption. It should be given separately. Manufacturers forget these principles and recommend the administration of a “hotchpotch” to patients, usually an elixir, tonic or capsule containing iron, zinc, calcium, vitamins and trace elements all mixed together. It offers little benefit.
After a satisfactory response to pica, no further treatment is required. However a close watch, for recurrence of the symptoms, may have to be kept on the individual for a couple of months by an involved and motivated caregiver.
Dr Gita Mathai is a paediatrician with a family practice at Vellore. Questions on health issues may be emailed to her at yourhealthgm@yahoo.co.in
Monday, June 11, 2012
gout
Out with gout
Your Health
DR GITA MATHAI
“Them that can eat have no meat and them that have meat cannot eat!” said Henry VIII who suffered from gout. Gout was then considered a disease of aristocrats, as they were the only people who could afford red meat and alcohol. Excessive consumption of the two was for centuries considered to be precipitating factors for the disease. Today, we know that it is due to high uric acid levels in the blood (more than 7 mg /dl). The incidence of gout is increasing, with the highest rates of change being in India, China and Thailand. Gout now affects 0.3 per cent of the Indian population.
Uric acid is a product of purine metabolism found in all living cells with high concentrations in protein rich foods such as red meat, fish, yeast, broccoli, cabbage, cauliflower and some beans. Beer too has a high purine content while other liquors elevate uric acid levels in the blood as they are metabolised.
The levels of uric acid can increase despite a normal diet if there is increased cell destruction in the body as in leukaemia and sickle cell disease. The levels may also go up as a side effect of certain medications.
Typical gout starts abruptly — in the middle of the night when the temperature dips. Sharp shooting pains appear in the big toe, ankle or knee. The joint becomes red and swollen. There may be fever. This may initially lead to a mistaken diagnosis of inflammatory arthritis.
With or without treatment, the pain may subside 48-72 hours later, and then disappear forever in a lucky few. In others, it re-appears after months or years. Eventually, if left untreated, it may progress to chronic gout, with swollen and deformed joints. Crystallised uric acid may be deposited under the skin as visible “gouty tophi” on the ear, fingers and toes. These appear as movable lumps which eventually grow larger, become painful and interfere with joint movement. The kidney tries to excrete the excess uric acid, which may precipitate there to form stones. It can eventually lead to kidney failure.
Uric acid levels may increase if the body has a problem with eliminating normal quantities of uric acid. This occurs in the obese, the diabetic and those with abnormal lipid levels. Genetically predisposed males develop gout in the forties. Women are protected till menopause, after which their uric acid levels can go up.
Not everyone with high uric acid levels exhibits symptoms. Some people remain asymptomatic all through life.
The diagnosis of gout is confirmed by blood tests to estimate blood uric acid levels, aspiration of fluid from the joints to demonstrate crystals, X-rays or a synovial biopsy.
During an acute attack of gout, the pain can be relieved with medication. Some non steroidal anti-inflammatory agents work better in some people than others. Indomethecin and Nalidixic are particularly effective. Injections of steroids into the affected joints may also be needed. Later, once the acute attack has subsided, drugs like allopurinol may have to be taken regularly to lower blood uric acid levels.
Although medication is the mainstay of gout treatment, for faster pain relief soak the affected joint in hot water with rock salt in it. Then apply ice.
Lifestyle modifications can help to reduce the severity and frequency of attacks.
• Maintain ideal body weight. Although a BMI (body mass index) of 23 is ideal, gout is precipitated when BMI goes above 35.
• Reduce alcohol intake. Beer and binge drinking increase the likelihood of attacks.
• Increase your consumption of carbohydrates. Reduce red meat. If you are vegetarian, remember that some vegetables too contain a lot of purine.
• Coffee reduces blood uric acid levels.
• Vitamin C reduces uric acid. Eating more than 500mg a day as tablets can cause side effects. It is better to get your requirements by squeezing half a lime into every glass of water.
• Eat 2-3 bananas a day.
• Drink 4 litres of water a day. This will help wash out the uric acid and prevent it forming stones in the kidney.
• Exercise for an hour a day. It will correct obesity, metabolic derangements in sugar and lipid levels and help to maintain ideal body weight.
The chance of developing diseases is radically reduced by maintaining ideal body weight and exercising daily. Just putting one foot in front of the other and walking on the road for 40 minutes a day will increase your longevity and keep you healthy.
Dr Gita Mathai is a paediatrician with a family practice at Vellore. Questions on health issues may be emailed to her at yourhealthgm@yahoo.co.in
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Saturday, June 2, 2012
sleep
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