Showing posts with label information. Show all posts
Showing posts with label information. Show all posts

Saturday, June 15, 2013

Base shared decision making on good information, personal preferences

Howard LeWine, M.D.
Posted May 29, 2013, 6:07 pm Woman talking with her doctor

We are taught to share at an early age, and sharing is encouraged and praised across the life span. One area in which there has been a lack of sharing is medicine. Doctors have traditionally made decisions for their patients with little or no discussion about the preferences of the person who will ultimately have to live with the decision.

That’s changing. More and more, doctors are trying to implement a model known as shared decision making or informed decision making. These terms refer to a process that includes a thoughtful, informed conversation between you and your doctor aimed at making a decision that’s right for you.

Shared decision making is gaining acceptance as a medical “best practice.” Many studies suggest that it improves:

health outcomestaking medications as directed and following other instructionssatisfaction with a treatment or course of action

But it may also cost more. A study just published online in JAMA Internal Medicine found that among individuals who were hospitalized, those who indicated a desire to have a say in their medical decisions spent more time in the hospital those who preferred to just follow their doctors’ recommendations. The extended stays translated into an average $865 extra spent on the hospitalization.

I don’t think shared decision making is what caused the higher cost. The patients requesting shared decision making had a higher level of education, were more likely to have private health insurance, and were financially more secure than those who were content to rely on their doctors’ advice.

People with higher education, private insurance and more financial stability are known to have higher health care costs in general. So, the shared decision making process probably isn’t the reason for the higher hospital costs seen in this study.

Instead of saying “You have a blocked artery in your heart that causes chest pain when you are active. Here is what you need to do,” a doctor who practice shared decision making would approach the issue differently. He or she would lay out the options—medicine plus lifestyle changes, artery-opening angioplasty plus stent placement, or bypass surgery—and ask about your preferences. What you choose may be different than what someone else experiencing the same chest pain for the same reason might choose. As described in the article “Multiple Choice” in Harvard Medicine:

… different personal values lead to different choices. One patient may opt for the certainty of an invasive test while another prefers less intervention. Their choices are shaped by emotions, relationships, and values. Identifying the values, and incorporating them in care decisions, has become a fundamental tenet of shared decision making.

If you aren’t familiar with shared decision making, it can feel wrong. When your doctor asks what you want to do, you might be thinking, “You’re the doctor. Shouldn’t you be telling me what to do?”

In such a scenario, your doctor isn’t actually asking you to make the final decision on your own. He or she will describe different treatments, tell you how effective they are, and lay out the potentially negative side effects and their chances of happening. But your doctor can’t know what you want out of treatment, or what you fear about it. Those ideas and feelings play important roles in the decision-making process.

Say you loved riding motorcycles, lived to ski, or did other activities that could cause an injury. But along comes a diagnosis of atrial fibrillation, and your doctor recommends that you take warfarin (Coumadin) for life to prevent a stroke. People who take warfarin are urged to avoid such activities because the drug makes it hard to stop bleeding following an injury.

Alternatives such as aspirin aren’t as effective as preventing stroke as warfarin, but the risk of bleeding is much less. Some people would choose to start warfarin and stop their risky activities. Others choose the aspirin rather than giving up their passion. Either way, an informed and shared decision has been made.

How do you know if you have made the right decision, or at least a good one? If it’s based on solid information and your personal feelings about benefits and risks, it should be both right and good—for you.

And keep in mind that you aren’t making the decision alone. It is a shared decision with your doctor.

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Thursday, June 6, 2013

New sunscreen labels offer clearer sunburn, skin cancer information

Howard LeWine, M.D.
Posted May 21, 2013, 1:56 pm Applying sunscreen

With the unofficial start of summer just a few days away, many people will soon be stocking up on sunscreen. The products they’ll be seeing in stores look different than they have in the past. That’s because new rules for sunscreen labels are now in effect. The changes are good ones for consumers.

The new rules, mandated by the FDA, are making sunscreen more informative with less misleading information. For example, the term “sunblock” is banned because none of these products can block all of the sun’s ultraviolet rays. “Waterproof” is also banned, replaced by “water-resistant”—which must be accompanied by a set time for reapplication. Another big change has to do with SPF, or sun protection factor.

When sunlight hits your skin, it is being exposed to ultraviolet A (UVA) and ultraviolet B (UVB) rays. UVB rays are the main cause of sunburn, while UVA can prematurely age and wrinkle skin. Both contribute to skin cancer. Sunscreens vary in their ability to protect against UVA and UVB.

The best protection comes from a sunscreen that provides broad spectrum protection, meaning it filters out much of the UVA and UVB. Under the new FDA rules, if a label says “broad spectrum,” the product must pass tests proving that it truly protects against both UVA and UVB rays.

SPF is a measurement of how much longer it takes for your skin to turn red from the sun after applying the sunscreen. Say your skin turns red after 10 minutes in the sun. Sunscreen with an SPF of 15 would prevent your skin from turning red for 150 minutes under the same conditions. You’d think that an SPF of 30 would work twice as well as an SPF of 15. But that’s not necessarily the case. While SPF 15 filters out approximately 93% of all incoming UVB rays, SPF 30 filters out 97% and SPF 50 boosts that to 98%.

Sunscreen products that don’t meet an SPF of 15 or higher for both UVA and UVB must now carry a warning like this: Skin Cancer/Skin Aging Alert: Spending time in the sun increases your risk of skin cancer and early skin aging. This product has been shown only to prevent sunburn, not skin cancer or early skin aging.

The FDA says there’s no evidence that sunscreens with an SPF above 50 offer any additional protection. It had initially wanted to ban sunscreen makers from including SPFs higher than 50 on labels, but blowback from the industry has so far tabled that.

To reduce your risk of skin cancer and early aging, the American Academy of Dermatology recommends using a sunscreen with the following features listed on the label:

“Broad spectrum,” which means the sunscreen protects against both UVA and UVB raysSPF of 30 or higherWater-resistant for up to 40 or 80 minutes

Nonchalantly slapping on some sunscreen here and there will miss spots and often provide insufficient protection against sunburn and skin cancer. Be systematic when using sunscreen:

Apply it before you go out.Make sure you apply enough and apply frequently. Use 1 ounce of sunscreen (a shot glass full) to cover your body and face.Reapply sunscreen immediately after swimming or heavy sweating, using the time guide on the label.Apply every 2 hours if you don’t get in the water and don’t sweat.

Even the best sunscreen can’t protect you from all of the sun’s rays. Here are some other ways to protect yourself from skin cancer, sunburn, and early aging of skin:

Wear clothing made from tightly woven fabrics or those that absorb UVA and UVB.Avoid the sun from 10:00 a.m. to 4:00 p.m., when its rays are most intense.Wear a wide-brimmed hat to keep ultraviolet rays off your face.Stay in the shade.Pay attention to reflection from water, sand, and snow (in the winter).Watch for news reports that give the UV index in your area. A UV index reading of 2 or less means low danger from the sun’s ultraviolet rays for the average person.Examine your skin regularly for any new moles or changes in moles. Ask your doctor about any changes you see.Share

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