Catherine, Princess of Wales, is undergoing treatment for cancer. In a video thanking followers for their messages of support after her major abdominal surgery, the Princess of Wales explained, “tests after the operation found cancer had been present.”

“My medical team therefore advised that I should undergo a course of preventative chemotherapy and I am now in the early stages of that treatment,” she said in the two-minute video.

No further details have been released about the Princess of Wales’ treatment.

But many have been asking what preventive chemotherapy is and how effective it can be. Here’s what we know about this type of treatment.

It’s not the same as preventing cancer

To prevent cancer developing, lifestyle changes such as diet, exercise and sun protection are recommended.

Tamoxifen, a hormone therapy drug can be used to reduce the risk of cancer for some patients at high risk of breast cancer.

Aspirin can also be used for those at high risk of bowel and other cancers.

How can chemotherapy be used as preventive therapy?

In terms of treating cancer, prevention refers to giving chemotherapy after the cancer has been removed, to prevent the cancer from returning.

If a cancer is localised (limited to a certain part of the body) with no evidence on scans of it spreading to distant sites, local treatments such as surgery or radiotherapy can remove all of the cancer.

If, however, cancer is first detected after it has spread to distant parts of the body at diagnosis, clinicians use treatments such as chemotherapy (anti-cancer drugs), hormones or immunotherapy, which circulate around the body .

The other use for chemotherapy is to add it before or after surgery or radiotherapy, to prevent the primary cancer coming back. The surgery may have cured the cancer. However, in some cases, undetectable microscopic cells may have spread into the bloodstream to distant sites. This will result in the cancer returning, months or years later.

With some cancers, treatment with chemotherapy, given before or after the local surgery or radiotherapy, can kill those cells and prevent the cancer coming back.

If we can’t see these cells, how do we know that giving additional chemotherapy to prevent recurrence is effective? We’ve learnt this from clinical trials. Researchers have compared patients who had surgery only with those whose surgery was followed by additional (or often called adjuvant) chemotherapy. The additional therapy resulted in patients not relapsing and surviving longer.

How effective is preventive therapy?

The effectiveness of preventive therapy depends on the type of cancer and the type of chemotherapy.

Let’s consider the common example of bowel cancer, which is at high risk of returning after surgery because of its size or spread to local lymph glands. The first chemotherapy tested improved survival by 15%. With more intense chemotherapy, the chance of surviving six years is approaching 80%.

Preventive chemotherapy is usually given for three to six months.

How does chemotherapy work?

Many of the chemotherapy drugs stop cancer cells dividing by disrupting the DNA (genetic material) in the centre of the cells. To improve efficacy, drugs which work at different sites in the cell are given in combinations.

Chemotherapy is not selective for cancer cells. It kills any dividing cells.

But cancers consist of a higher proportion of dividing cells than the normal body cells. A greater proportion of the cancer is killed with each course of chemotherapy.

Normal cells can recover between courses, which are usually given three to four weeks apart.

What are the side effects?

The side effects of chemotherapy are usually reversible and are seen in parts of the body where there is normally a high turnover of cells.

The production of blood cells, for example, is temporarily disrupted. When your white blood cell count is low, there is an increased risk of infection.

Cell death in the lining of the gut leads to mouth ulcers, nausea and vomiting and bowel disturbance.

Certain drugs sometimes given during chemotherapy can attack other organs, such as causing numbness in the hands and feet.

There are also generalised symptoms such as fatigue.

Given that preventive chemotherapy given after surgery starts when there is no evidence of any cancer remaining after local surgery, patients can usually resume normal activities within weeks of completing the courses of chemotherapy.

Ian Olver, Adjunct Professsor, School of Psychology, Faculty of Health and Medical Sciences, University of Adelaide

This article is republished from The Conversation under a Creative Commons license. Read the original article.

It’s a shock when we realise our parents aren’t managing well at home.

Perhaps the house and garden are looking more chaotic, and Mum or Dad are relying more on snacks than nutritious meals. Maybe their grooming or hygiene has declined markedly, they are socially isolated or not doing the things they used to enjoy. They may be losing weight, have had a fall, aren’t managing their medications correctly, and are at risk of getting scammed.

You’re worried and you want them to be safe and healthy. You’ve tried to talk to them about aged care but been met with swift refusal and an indignant declaration “I don’t need help – everything is fine!” Now what?

Here are four things to consider.

1. Start with more help at home

Getting help and support at home can help keep Mum or Dad well and comfortable without them needing to move.

Consider drawing up a roster of family and friends visiting to help with shopping, cleaning and outings. You can also use home aged care services – or a combination of both.

Government subsidised home care services provide from one to 13 hours of care a week. You can get more help if you are a veteran or are able to pay privately. You can take advantage of things like rehabilitation, fall risk-reduction programs, personal alarms, stove automatic switch-offs and other technology aimed at increasing safety.

Call My Aged Care to discuss your options.

2. Be prepared for multiple conversations

Getting Mum or Dad to accept paid help can be tricky. Many families often have multiple conversations around aged care before a decision is made.

Ideally, the older person feels supported rather than attacked during these conversations.

Some families have a meeting, so everyone is coming together to help. In other families, certain family members or friends might be better placed to have these conversations – perhaps the daughter with the health background, or the auntie or GP who Mum trusts more to provide good advice.

Mum or Dad’s main emotional support person should try to maintain their relationship. It’s OK to get someone else (like the GP, the hospital or an adult child) to play “bad cop”, while a different person (such as the older person’s spouse, or a different adult child) plays “good cop”.

3. Understand the options when help at home isn’t enough

If you have maximised home support and it’s not enough, or if the hospital won’t discharge Mum or Dad without extensive supports, then you may be considering a nursing home (also known as residential aged care in Australia).

Every person has a legal right to choose where we live (unless they have lost capacity to make that decision).

This means families can’t put Mum or Dad into residential aged care against their will. Every person also has the right to choose to take risks. People can choose to continue to live at home, even if it means they might not get help immediately if they fall, or eat poorly. We should respect Mum or Dad’s decisions, even if we disagree with them. Researchers call this “dignity of risk”.

It’s important to understand Mum or Dad’s point of view. Listen to them. Try to figure out what they are feeling, and what they are worried might happen (which might not be rational).

Try to understand what’s really important to their quality of life. Is it the dog, having privacy in their safe space, seeing grandchildren and friends, or something else?

Older people are often understandably concerned about losing independence, losing control, and having strangers in their personal space.

Sometimes families prioritise physical health over psychological wellbeing. But we need to consider both when considering nursing home admission.

Research suggests going into a nursing home temporarily increases loneliness, risk of depression and anxiety, and sense of losing control.

Mum and Dad should be involved in the decision-making process about where they live, and when they might move.

Some families start looking “just in case” as it often takes some time to find the right nursing home and there can be a wait.

After you have your top two or three choices, take Mum or Dad to visit them. If this is not possible, take pictures of the rooms, the public areas in the nursing home, the menu and the activities schedule.

We should give Mum or Dad information about their options and risks so they can make informed (and hopefully better) decisions.

For instance, if they visit a nursing home and the manager says they can go on outings whenever they want, this might dispel a belief they are “locked up”.

Having one or two weeks “respite” in a home may let them try it out before making the big decision about staying permanently. And if they find the place unacceptable, they can try another nursing home instead.

4. Understand the options if a parent has lost capacity to make decisions

If Mum or Dad have lost capacity to choose where they live, family may be able to make that decision in their best interests.

If it’s not clear whether a person has capacity to make a particular decision, a medical practitioner can assess for that capacity.

Mum or Dad may have appointed an enduring guardian to make decisions about their health and lifestyle decisions when they are not able to.

An enduring guardian can make the decision that the person should live in residential aged care, if the person no longer has the capacity to make that decision themselves.

If Mum or Dad didn’t appoint an enduring guardian, and have lost capacity, then a court or tribunal can appoint that person a private guardian (usually a family member, close friend or unpaid carer).

If no such person is available to act as private guardian, a public official may be appointed as public guardian.

Deal with your own feelings

Families often feel guilt and grief during the decision-making and transition process.

Families need to act in the best interest of Mum or Dad, but also balance other caring responsibilities, financial priorities and their own wellbeing.

Lee-Fay Low, Professor in Ageing and Health, University of Sydney

This article is republished from The Conversation under a Creative Commons license. Read the original article.