Most common heart-related
conditions
- provided by America's leading
cardiologists
Hypertension
Hypertension, or high blood pressure, is often
called a "silent killer" because many
have it for years without realizing. However, all
along damage is silently being done to the brain,
the heart and the kidneys. Click on one of the programs
below to find out more on hypertension and how to
keep your blood pressure in check
What Is Hypertension?
Millions of Americans have hypertension,
also known as high blood pressure, without knowing
it. Tune in to learn more about this silent killer.
Participants:
Jamie B. Conti, MD
Adolph M. Hutter Jr, MD, MACC, FAHA, FESC
Past President and Editor-in-Chief Conversations
with the Experts American College of Cardiology
Suzanne Hughes, MSN, RN
Education Coordinator, Center for Family Medicine,
Akron General Medical Center, Akron, Ohio
Robert S. Schwartz, MD, FACC
Director of Preclinical Research, Minneapolis Heart
Institute,
Minneapolis, MN
Webcast Transcript:
ANNOUNCER: Hypertension is the medical term for
high blood pressure. In the United States alone,
as many as 65 million adults have high blood pressure,
and the older you are, the higher the risk for developing
hypertension.
SUZANNE HUGHES, MSN, RN: It's very common to develop
hypertension later in life. If one makes it to age
55 with normal blood pressure, their risk of developing
high blood pressure yet in their lifetime is around
90 percent. It's an important thing for people to
realize that, particularly in the early stages,
there are no symptoms of hypertension or high blood
pressure and that's why the condition has gotten
the name "the silent killer," because
damage is being done to the end organs in the absence
of any symptoms at all.
ANNOUNCER: Blood pressure is measured by two numbers.
The larger number, known as systolic pressure, and
the smaller number, which is called diastolic pressure.
An ideal blood pressure reading would be equal to
or less than 120/80. A reading of 140/90 or higher
would be considered hypertension. If left undiagnosed
or uncontrolled, hypertension can cause a multitude
of medical conditions.
JAMIE B. CONTI, MD: High blood pressure can cause
several major problems, including stroke, kidney
failure and heart disease, both coronary artery
disease and heart failure. And the relationship
is in the arteries. And the longer the arteries
are under high blood pressure, the more the other
organs are affected. So ignoring one's blood pressure
over the long term is a really bad idea.
ANNOUNCER: Fortunately, once diagnosed, hypertension
can be controlled through lifestyle changes and
medication.
ADOLPH M. HUTTER, JR., MD: One of the basic treatments
for hypertension is a low salt diet. If you get
rid of the extra salt, you get on a low salt diet,
that in itself will help lower your blood pressure.
SUZANNE HUGHES, MSN: We know that it's very important
for people that have been identified as having hypertension
to avoid or quit tobacco products. Additionally,
following what we call the DASH diet: Dietary Approaches
to Stop Hypertension. This is a diet that's low
in fat, it's high in fruits and vegetables and it
also has two to three servings a day of low-fat
dairy products.
ROBERT S. SCHWARTZ, MD: Many drugs are available
that can lower the blood pressure. Or possibly lowering
the amount of water in a person's body through giving
agents that are diuretics, that is, causing water
to be lost through the urine. Other classes of drugs
do things such as relax the heart or slow the heart
rate down, all of which can lower the blood pressure
directly.
SUZANNE HUGHES, MSN, RN: I think the important
thing that people need to remember is, if one has
hypertension, it will take an average of 2.7 medications
to manage that high blood pressure.
ANNOUNCER: No matter how healthy you feel, there
is still one sure-fire way to find out if you suffer
from hypertension: Visit your physician on a regular
basis
ADOLPH M. HUTTER, JR., MD: Hypertension can be
without any symptoms. You may have hypertension
and not know it because you don't have headaches
or flushing, and you feel wonderful. So you need
to get your blood pressure checked.
Medications and Diet for Hypertension
Hypertension or high blood pressure is a
risk factor for heart disease, stroke and other cardiovascular
conditions. Fortunately, it can be controlled. Tune
in to find out how.
Participants:
Suzanne Hughes, MSN, RN
Education Coordinator, Center for Family Medicine,
Akron General Medical Center, Akron, Ohio
Editorial Consultant:
Suzanne Hughes, MSN, RN
Webcast Transcript:
ANNOUNCER: If you’ve been diagnosed with high
blood pressure, also known as hypertension, you’re
not alone
SUZANNE HUGHES, MSN, RN: In the summer of 2004,
we saw the release of new data that told us that
what we previously knew was the number of Americans
with hypertension, 50 million, had risen to 65 million
since the last reporting period. So we know now
that one out of every three adult Americans has
hypertension or high blood pressure, which is a
risk factor not only for heart disease, but, importantly,
for stroke.
ANNOUNCER: As blood pressure rises, the risk of
developing adverse cardiovascular conditions increases,
so it’s important to control high blood pressure
immediately to avoid further complications. Fortunately,
there are many treatment options available to help
get your blood pressure back on track.
SUZANNE HUGHES, MSN, RN: There are certain lifestyle
changes one can make, particularly in the early
stages of prehypertension, that might be able to
lower the blood pressure adequately enough to not
even require medication, and these would be following
what we call the DASH diet. DASH stands for Dietary
Approaches to Stop Hypertension. It’s a diet
that’s very high in fruits and vegetables,
it’s low in fat, and it also has two to three
servings per day of low-fat dairy products. That,
combined with lowering the sodium in the diet, can
make a big difference in the blood pressure.
Also, adherence to the recommendations of 30 minutes
of exercise every single day can also make a nice
difference in the blood pressure.
Very important that people with hypertension or
pre-hypertension absolutely avoid tobacco products.
And if they do choose to drink alcohol, that that
be kept to one drink per day for women and two drinks
per day for men.
Now, should lifestyle measures alone not be enough
to normalize blood pressure, medication may indeed
be necessary.
The good news is, we have a wonderful, large armamentarium
of medications now that lower blood pressure. We
do know, however, that if one has hypertension,
it will require an average of 2.7 medications to
get that blood pressure to normal. And that surprises
a lot of people. A lot of people will be started
on a blood pressure medication, go back and follow
up with their physician maybe a few weeks or months
later and find out that that one medicine alone
isn’t enough, and then another medication
is introduced. And I think sometimes patients perceive
that that’s a failure on their part or on
their health care provider’s fault, when at
the outset we know that it may indeed require several
medications.
When several medications are used, each of those
medications can be then used in smaller doses, which
helps to minimize the side effects.
A very important group of medications to lower
blood pressure are diuretics, and these are medications
that lower blood pressure by kind of lowering the
circulating fluid volume in the body. These are
very important, and in many cases, when there’s
more than one medicine needed, a diuretic will be
one of those.
A second important group of medications are the
beta blockers. These are particularly important
in a group of patients that have already suffered
from a heart attack. They’re very important
players in our toolbox against hypertension.
We also have what we call the calcium channel blockers,
a group of medicines that actually work on the arterial
wall to relax the wall and drop the blood pressure.
We have a group of medications called the angiotensin
converting enzyme inhibitors -- a big name -- the
ACE inhibitors that lower blood pressure.
And we also have the angiotensin receptor blockers,
or the ARBs group. So those are kind of the main
groups of medications that lower blood pressure.
And what your particular health care provider may
choose to use in your case can be dictated by several
different things, whether or not you have diabetes,
whether you’ve already had a heart attack
or heart disease. Sometimes whether you’re
a man or a woman, what age you are, what race you
are. So all these things kind of play in. But we
do know that the actual lowering of the blood pressure,
no matter what agent, has profound impact on the
development of heart attack, on the prevention of
stroke, as well as the prevention of heart failure.
Erectile Dysfunction & Hypertension
Hypertensive patients worry about which medications
are safe to take, including erectile dysfunction (ED)
drugs. Find out how ED medication affects hypertension.
Participants:
Franz H. Messerli, MD
Clinical Professor of Medicine; Tulane University
School of Medicine
Webcast Transcript:
ANNOUNCER: Many patients with hypertension want
to know if it's safe to take drugs that treat erectile
dysfunction.
FRANZ MESSERLI, MD: Now, one has to consider in
this context that basically from a physiologic point
of view, sex has to be considered a form of exercise.
It increases heart rate. It increases cardiac output.
So it puts a burden on the heart.
But in general, this burden is very well-tolerated
by the hypertensive patients, because we do let
our hypertensive patients exercise. They should
engage into regular exercise. We told them to do
so. So there's nothing wrong with them having sex.
Now, when you look specifically at the drugs that
improve erectile function, such as Viagra, such
as Cialis, such as Levitra, if anything, they actually
lower blood pressure a little bit. And if anything,
they have a positive effect on the coronary flow
in the heart. So to my way of thinking these drugs
are rarely contraindicated in hypertensive patients.
And even if—and I see a lot of complicated
hypertensive patients who are on triple and quadruple
and quintuple therapy—even in these patients,
I have no hesitation to prescribe one of these drugs.
ANNOUNCER: Although it is generally acceptable
to take erectile dysfunction medication if you have
hypertension, there is one major caution: If you
are taking nitrates for coronary disease or angina,
erectile dysfunction medication should be avoided.
This combination of drugs can cause dangerous dips
in blood pressure.
Read ASK YOUR DOCTOR: About High Blood Pressure
The following is a list of questions to ask
your doctor about high blood pressure, as well as
tips for preparing
for these conversations.
1. What is blood pressure?
Blood pressure is the force of the blood pushing
against the walls of the arteries. Blood pressure
is expressed in two numbers. The top number is the
systolic pressure, the pressure produced in the
arteries when the heart beats. The lower number,
the diastolic pressure is the pressure in the arteries
between heart beats. Both numbers are important.
2. What is high blood pressure?
High blood pressure (also called hypertension)
is known as the "silent killer" because
over time it can cause serious damage to the heart,
brain, and kidneys without any symptoms. In most
people with high blood pressure, a single specific
cause cannot be identified. One in three adult Americans
have high blood pressure, and even if you reach
your mid-50's with normal blood pressure, your risk
of developing high blood pressure in your lifetime
is nine in 10.
3. Why should I care about high blood pressure?
Elevated blood pressure increases your risk for
heart attack, stroke, heart failure, and also kidney
failure.
4. How can I lower my blood pressure?
You can lower your blood pressure by making changes
in your eating and exercise habits and by quitting
smoking. There are many medications available that
can effectively lower blood pressure. These medicines
are very often used in combination.
5. What are the current standards for blood pressure
levels?
Categories for Blood Pressure Levels in Adults
(in mm Hg, millimeters of mercury)a
Category |
Systolic (top number) |
Diastolic (bottom number) |
Normal |
Less than 120 |
Less than 80 |
Prehypertension |
120-139 |
80-89 |
High blood pressure |
Stage 1 |
140-159 |
90-99 |
Stage 2 |
160 or higher |
100 or higher |
For adults 18 and
older who are not on medicine for high blood
pressure; are not having a short-term serious
illness; and do not have other conditions,
such as diabetes and kidney disease. |
Note: When systolic and diastolic
blood pressures fall into different categories,
the higher category should be used to classify
the blood pressure level. For example, 160/80
mm Hg would be stage 2 high blood pressure.
There is an exception to the above definition
of high blood pressure. A blood pressure of
130/80 mm Hg or higher is considered high blood
pressure in people with diabetes and chronic
kidney disease. |
6. What are the key questions to ask my health
care provider about my blood pressure?
- What is my blood pressure?
- Is my blood pressure
considered normal?
- Would it be helpful for
me to measure and record my blood pressure at
home?
- What changes could I make in my eating
habits and activity levels that would help to
lower
my blood pressure?
- Do I require medication?
- How do my medications
work? Are there side effects I should watch
for?
Reference:
NHLBI http://www.nhlbi.nih.gov/health/dci/Diseases/Hbp/HBP_WhatIs.html
The information
published on this page has been provided by the
Heart Authority
in collaboration with Cardiosource – American College of Cardiology
|