Heart Disease, Living Well with (cont.)
Someone may choose to pursue a strategy that is not yet well established, but they need to know that decision is a bit of a gamble. It may turn out when all is known and more studies are performed that the decision was a good one. Someone who, for example, decided to take aspirin before the evidence was definitive would have been fortunate to have made that decision. But someone who makes a decision before the evidence is firm, may also pay a penalty. For example, a woman who decided to take estrogen therapy before the trials were completed would have actually put herself at greater risk.
So what I tried to do in the book was distill the most important information in cardiology, express it to patients in a way they would understand and sort out what we know for sure and what knowledge is still evolving. I tried to give these patients some information about how to interpret new information that might be appearing on the news. The book also includes information about how patients should prepare for their visits with their physicians and the kinds of questions they should ask and tools to help them monitor their care.
What is remarkable is that despite the importance of these strategies, and the strength of evidence that exists regarding their benefit, there remain vast numbers of people who are not taking advantage of them. One of my goals in writing the book was to highlight these strategies -- make sure that people understand their importance and answer many frequent questions that people have about them. These strategies, in my mind, should be a checklist for each person who can go down the list and assess where they stand with respect to each one. People who pay attention to these seven strategies have done a remarkable service for themselves in reducing their risk of heart disease.
One thing to note in the book is that each of the strategies is framed in the book by the words "Take Charge." This is a call to the reader to get engaged and take control.
It's remarkable that even though we have known about the potential hazards of high blood pressure, for many, many years, there remain a large number of people whose blood pressure puts them at substantial risk; that is, it is too high. Overall, about 1 in 3 adults have high blood pressure. Of those with high blood pressure, only about two-thirds have been told that their blood pressure is high. Among those with high blood pressure only about half have been treated with a medication to lower their blood pressure.
This is the amazing fact: Of the people with high blood pressure, only about 1 in 3 have a blood pressure that is at the target that has been identified by national experts. That is, only 1 in 3 is truly under control with respect to their blood pressure.
When I say take care of your blood pressure, I'm telling patients they need to know what their numbers are, they need to know whether their blood pressure is under control, and if it's not, they need to be talking to their doctor about what it takes to get their blood pressure to the target level that has been recommended.
The second strategy takes a similar approach with cholesterol levels. There are a third of people in this country who have never had their cholesterol tested. Just like blood pressure, there are only about 1 in 3 people who have high cholesterol who know it, a small percentage of them are on treatment, and a considerable proportion are not at the recommended target levels. Again, the thing that is important here is that patients know their cholesterol numbers and that they work with their physicians to reach the proper target.
For blood pressure, at some point a low level can cause symptoms. People may feel light-headed, or dizzy or unsteady. For an older person, a fall can be catastrophic. So we try to be careful in treating blood pressure. Recently what is being called normal blood pressure was redefined a bit. But the numbers I have mentioned, that is, the large numbers of people who are not at target levels does not even take into account these lower targets. So even with the more traditional target, of a blood pressure of 140/90, many people are not reaching it.
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