Your Doctor

March 2010

Casey Medical Centre

Menopause is a time for lifestyle changes

Menopause is defined by the World Health Organisation (WHO) as the permanent cessation of menstruation (periods) due to loss of ovarian function. Diagnosis is made 12 months after the last period. It is also known as the climacteric or the ‘change of life’. The average age of menopause is 51 but it can occur any time from 44-55. If the ovaries are removed surgically or damaged by chemotherapy or radiotherapy, menopause will occur early. The perimenopause is a time of decreasing ovarian function that may last up to 10 years before the last period.

Once the ovaries stop functioning, there is a dramatic drop in the levels of the hormones oestrogen and progesterone. Oestrogen deficiency is the main cause of symptoms such as hot flushes and night sweats, vaginal dryness and irritation and urinary problems. Other symptoms associated with menopause include sleep problems, sexual difficulties, mood swings and depression, joint aches and pains, memory and concentration problems, headaches, palpitations and dry eyes. While many women have some hot flushes, only about 10% have frequent, severe episodes. Longer-term effects of the menopause include increased heart disease risk and osteoporosis (loss of bone mineral density).

Hormone replacement therapy (HRT) involves taking small doses of oestrogen with or without progesterone. These can be taken as tablets, transdermal skin patches or implants.

Oestrogen is also available as a vaginal cream or pessary. Concerns were raised when recent studies showed increased risk of breast cancer with HRT. Current understanding is that when used early in the menopause, for up to 5 years, there is very little risk for most women. Benefits of HRT include the relief of hot flushes, vaginal and urinary symptoms, joint pain and insomnia. It also increases bone mineral density and reduces the risk of fractures. On the other hand, HRT is associated with an increased risk of venous thromboembolism (VTE), which can cause clots in the legs and lungs. The risk of gallbladder disease and some cancers including breast, ovary and lung may increase a little with HRT.

Ultimately, the decision as to whether or not to use HRT is made on an individual basis after discussing your particular risk factors and symptoms with your doctor. There are other non-hormonal medications available for some menopausal symptoms. While many women choose to use herbal preparations to help with symptoms, there is currently no scientific evidence for their effectiveness and a lack of information about their long-term safety.

Lifestyle choices are perhaps more important than ever in this group of women. Maintaining a healthy weight, a heart-healthy diet, sufficient calcium and vitamin D, 30 minutes of exercise a day, stopping smoking, limiting alcohol, caffeine and spicy foods are all excellent ways of reducing symptoms and lowering the risks of heart disease and osteoporosis. Adopting healthy habits at this stage will help ensure a long and happy future for the next 1/3 of your life.

Fat comes in many forms

Fat tends to get bad publicity. Many people eat too much of it. It comes in several forms, not all of which are bad. Fat is a concentrated source of energy and carries the fat-soluble vitamins A, D, E and K.

The word ‘fat’, when used by nutrition experts, is a collective term for fat and oil. Oil is a liquid form of fat. Fat consists of several types of fatty acids. Depending on its chemical composition a fatty acid may be saturated, mono-unsaturated, or poly-unsaturated.

Monounsaturated and polyunsaturated fats are usually liquid at room temperature and are regarded as ‘good’ fats. They have many benefits such as lowering blood cholesterol (which can reduce the risk of heart disease), maintaining good eyesight, strong bones, healthy skin and brain function.

Monounsaturated fats are found in avocados, peanuts, almonds, seeds, vegetable oils such as olive, peanut and canola and in margarine spreads based on these oils.

The best known polyunsaturated fats are omega-3 - found in fish, canola, soybeans, lean meat, and eggs; and omega-6 - found in plant foods such as seeds, walnuts, vegetable oils such as sunflower, safflower, soybean and in some margarine spreads.

Saturated fats are usually solid at room temperature and are often regarded as ‘bad’ because they raise blood cholesterol. The three main sources of these fats are:

Animal fats – Full fat dairy products - butter, cheese and cream - and the surface fat of meat.

Tropical oils - coconut and palm oil,

Trans fats. These are unsaturated fats that behave like saturated fats. Small amounts naturally occur in animal foods.

Of concern from a health point of view are the trans fats made from unsaturated vegetable fats. These are chemically altered (hydrogenated) to be solid or semi solid at room temperature. Heating polyunsaturated oils, as in deep-frying, may also cause hydrogenation.

Tropical oils and trans fats are used extensively in commercially prepared foods like pastries, biscuits, chips, confectionary, salad dressing and takeaway foods.

All fats are high in energy (calories) and produce weight gain when eaten in excess. Dietary guidelines recommend that we should eat a low-fat diet, in particular one low in saturated fat. One to two tablespoons of mono- and poly-unsaturated fats each day, used in cooking and at the table, are sufficient for a healthy diet.

Words such as ‘lite’ on bottles of oil refer to the flavour and colour, not the calorie or fat content.

Good Health on the Menu

This salad can be prepared quickly and contains many of the good fats.

Nutty Green Salad

(serves 4)

1-cup baby spinach leaves,

1-cup rocket

1 bunch broccolini, lightly cooked

2 tabs chopped walnuts/pecans

Dressing:

1-2 tabs walnut or olive oil

2 tsp lemon juice or balsamic vinegar

1 clove garlic, crushed

Place dressing ingredients in a jar. Put on lid and shake. Wash and dry salad leaves. Combine salad ingredients and lightly toss with the dressing.

Myth and Fact

Myth

If I have had too many late nights I can catch up on sleep with an early night.

Fact

If this works for you, you are one of the lucky ones! Most people need regular sleep patterns and the body’s internal clock for sleep can be disrupted by changes to routine. After a few late nights, the body clock may reset. Going to bed early will not necessarily guarantee getting to sleep early.

Good sleep patterns include:

Regular bedtimes.

A winding down period from activity and screens, including TV.

Keeping sleeping area as dark as possible.

Avoiding heavy meals and/or alcohol before bed.

Relaxation techniques or practices before sleep.

If you find yourself lying in bed trying to sleep and becoming frustrated or worried about not sleeping, try getting up and doing some calming activity like yoga or meditation for an hour or so before returning to bed. Writing thoughts in a journal may also help. Sleep cycles come in waves every 90 minutes or so and if you have missed one, you need to wait for the next.

Did you Know?

Bedbugs were eradicated from most developed countries after World War II using the pesticide DDT. Increased international travel may have hastened the spread of bedbugs, which are now becoming an increasing problem. They are more common in places with high occupancy rates like hotels, military barracks, apartment complexes and dormitories.

Bedbugs are small wingless insects, about ½ cm long with flat, oval bodies. They are nocturnal and feed mainly on humans, biting to obtain blood. Bites are often seen in neat rows rather than random patterns, preferentially on the face, neck, arms and hands. The bites can become very red and irritated, though bedbugs do not tend to spread infections and are not considered dangerous. Bites can be treated with calamine lotion or soothing creams. See your doctor if there is a severe reaction.

During the day, bedbugs retreat to crevices, mattresses and accessible suitcases (best to place suitcases on a table or dresser, not the floor). They can survive many months between feeds but are vulnerable to extremes of temperature and can be killed by freezing, steaming or in a hot washer or clothes dryer. Normal insect repellants do not deter them. Surface insecticides must be registered to control bedbugs.

Signs you may see in an infestation include dark specs of excrement, blood smears on the sheets, light brown shed skins and sometimes the bugs themselves when they are active. Check with your local council or a pest control company for further advice.

Community Service Announcement

Mothering in Illness

An appeal to Australian women for their stories

Despite the fact that many women work outside of the home, they still assume the majority of responsibility for childcare.

This means that it can be devastating for a women to suffer a major illness that impacts upon her ability to care for her children.

My name is Tammy Vallido, and I am a researcher from the University of Western Sydney. I am interested in interviewing women face to face, via telephone or email exchange, who have at some time in their lives had difficulty mothering due to an illness.

I am interested in how the illness affected your mothering, how this affected you, and your relationship with your child. It is hoped the results from this study will contribute to better health care for women with maternal responsibilities.

I can be contacted on 0435044715, 02 4620 3355 or email:

t.vallido@uws.edu.au

This study has full ethics approval from the University of Western Sydney Ethics Committee (HREC number H7473), and all information will be treated confidentially.

Early treatment best for children’s eating disorders

Eating disorders such as anorexia nervosa and bulimia usually occur in adolescents and occasionally in adults. They affect mainly girls and are difficult to treat effectively. Only half will recover within 5 years.

Recently, increasing numbers of children have been affected by early onset eating disorders (EOED) - defined as food avoidance plus weight loss (or failure to gain weight in a growth period) without other obvious cause. Some are as young as 5 years and a quarter of reported cases appear in boys. The illness is often quite severe with many needing to be in hospital. The main health effects are low blood pressure, heart problems and hypothermia (inability to maintain body temperature).

Fortunately, it appears that intensive family therapy treatment may provide a greatly improved outcome, with most recovering after 5 years in one major study. The key may be in early recognition and specialised treatment. See your doctor if you have any concerns about your child’s behaviour, growth or weight.

Health Reminder!

The cervix – neck of the womb – is a site where cancer can develop. A simple test, the Pap smear, will detect the pre-cancer stage of this disease. A small operation can then prevent this potentially fatal condition developing. Women who have been sexually active should have this test at regular intervals.

Survival of the fitter

People often think that taking some exercise is a nice thing to do - an optional extra for health. The thing is, that’s not true. Exercise is a powerful factor in how well you are, including your likelihood of getting most diseases and how long you live. It’s optional if you don’t mind living less well for fewer years. A large study recently confirmed the link between being fit and having a longer life.

Over 15,000 men, either with or without cardiovascular disease, had their health tracked for just over seven years. The men’s fitness levels were measured in METs (metabolic equivalents), where one MET is the energy used when just sitting around. Walking has a MET score of three or four, while vigorous activity has a MET of seven or more.

For every one MET increase in fitness, the risk of dying during those seven years decreased by 13 percent. Those with the greatest exercise capacity had a 70 percent lower mortality than the unfit, after taking into account age, body weight and heart disease risk factors.

The really good news is that exercise is not ‘all or nothing’ - so even though more will always equal better, even a small increase in activity can do wonders over the long term. And just a reminder about what we’re aiming for here - it’s 45 minutes to an hour of moderate activity (if it feels moderate it is) on most days of the week. Include some muscle strengthening exercises like push-ups, dips and sit-ups and once the exercise feels easier, step it up a level.

Wounds need special care

Wounds can be either acute – such as a laceration, burn or surgical wound; or chronic – such as an ulcer or pressure sore. Healing of wounds usually occurs in 3 phases.

The inflammatory phase occurs in the first 3 days. This is where the body responds to injury by shutting down blood vessels and sending immune cells to fight infection and clear up dead cells. At this time the area becomes red, swollen and painful.

The proliferative phase can last up to 3 weeks. This is the healing phase where the body produces new blood vessels and skin cells to cover the wound. By 10 days, acute wounds are generally healed enough to remove stitches or clips. In chronic wounds this phase can be prolonged.

The maturation phase continues up to a year. This is the phase where scar tissue is formed and completes the healing process.

General principles of wound care include:

• Keep it clean. Tap water is usually sufficient to clean a wound as long as it is drinking quality water. Dressings protect from anything that might introduce infection.

• Use an appropriate dressing. This will depend on the type of wound. Dressings also keep the wound area moist to aid healing.

• Maintain good nutrition. Healing requires plenty of proteins, vitamins and minerals – especially Vitamins C, A, E and zinc. Extra fluids may also be needed.

• Stop smoking. Smoking slows the wound healing process.

• Exercise. Within the constraints of the wound, exercise will improve circulation and aid healing.

• Medications. Check with your doctor as some medications may affect healing. Keep diabetes and other chronic conditions well controlled.

• Infection. See your doctor promptly if your wound becomes more painful, bleeds or discharges pus or fluid or if you develop a fever.

• After healing. Take care with newly healed skin. Avoid sun exposure and moisturise the skin.

Wounds vary greatly and your doctor will assess each situation and advise appropriate management. This could include ongoing attention by a trained nurse or at a specialised clinic.