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HYPERTENSION
(HIGH BLOOD PRESSURE)
Overview
High blood pressure affects over 50 million people in the United States. It
is estimated that only one third of these people have been diagnosed; the rest are unaware
of their health risk. Hypertension is a leading risk factor for coronary artery disease
and, left untreated, can lead to left ventricular hypertrophy increased thickness of the
heart wall), congestive heart failure, a stroke, kidney disease and retinopathy
(changes in the retina of the eye). However, if treated early and effectively, all
of the potential complications associated with hypertension can be avoided, minimized, or
even reversed.
Diagnosis
Diagnosis of hypertension is based on three consecutive elevated blood pressure
readings. Blood pressure should always be taken with a well-calibrated instrument
(sphygmomanometer) a correctly sized cuff and with the person in a rested state for at
least a few minutes. Blood pressure readings, in many individuals, are highly variable.
Blood pressure can be affected by medications, including over the counter medications,
exercise, anxiety, smoking, excessive alcohol intake, and many other variables.
Blood pressure readings consist of two
numbers represented as one over the other. The top number is called the systolic reading
and the bottom number is called the diastolic reading. Hypertension is present if either
or, both the systolic or diastolic readings are elevated.
Classification
(Stages) of Hypertension
| Normal |
Less than 130 mm Hg |
Less than 85 mm Hg |
|
systolic |
diastolic |
| Stage 1 |
140 - 159 systolic |
90-99 diastolic |
| Stage 2 |
160 - 179 systolic |
100-109 diastolic |
| Stage 3 |
180 - 209 systolic |
110-119 diastolic |
| Stage 4 |
Greater than 210 |
Greater than 120 |
Risk
Factors
Hypertension is further classified as primary or secondary. Primary hypertension is also
called essential hypertension. The major predisposing risk factors in primary hypertension
are genetics and lifestyle which include: stress, anxiety, high salt intake,
smoking, excessive alcohol intake, high cholesterol, and diabetes to name a few.
Secondary hypertension affects approximately
5% of all people with hypertension. With secondary hypertension, high blood pressure is
caused because of some other medical problem within the body. These problems would
include, but are not limited to, renal parenchymal disease, renal artery stenosis, excess
aldosterone secretion, excess glucocorticoid secretion pheochromocytoma,coarctation of the
aorta, thyroid dysfunction, pregnancy, and chronic use of oral contraceptives.
Management
Early management of hypertension involves changing lifestyle behaviors that are known to
elevate blood pressure. Education, counseling and support in the areas of weight
management, diet exercise, smoking cessation stress reduction and the "over" use
of some over the counter medications are all key factors in helping to reduce high blood
pressure.
Once diagnosed with hypertension, additional
testing is required to determine the type of hypertension and any complications from
hypertension that may have already occurred. Laboratory analysis plays an important role
in the diagnosis of secondary hypertension. Electrocardiogram (EKG) and chest X-ray are
recommended as routine screening exams for hypertension. Hypertension left untreated can
cause left ventricular hypertrophy. Echocardiogram is done to determine left ventricular
hypeltrophy. There is a strong correlation between left ventricular mass and morbidity, as
well as, mortality from cardiovascular disease.
Treatment of hypertension may also include
medication in addition to changes in diet, exercise and lifestyle modifications. Choice of
medications is made on an individual basis in consultation with your physician. There are
several different classes of anti-hypertensive medications as follows:
Diuretics |
Beta-adrenergic
blocking agents |
Angiotensen-converting
enzyme (ACE) inhibitors |
Calcium
channel blockers |
Alpha-adrenoceptor
antagonists |
Drugs
with central sympatholitic action |
Arteriolar
dilators |
Peripheral
sympathetic inhibitors |
At Advanced Cardiac
Specialists (ACS) each of our clinicians is skilled in the diagnosis and treatment of
hypertension. Each of our outpatient offices is equipped with state-of-the-art diagnostic
equipment. Our staff is fully trained to handle everything you will need from on-site
exercise centers to fully equipped. treatment rooms available to handle hypertensive
emergencies.
Advanced Cardiac Specialists cares about your
good health. Diagnosing and treating hypertension is only one of the ways in which we show
you how to better manage your health. |