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Heart
Failure
The job of
the heart is to pump blood and oxygen to all of the cells in
the body. If the heart cannot pump vigorously enough to
accomplish this, it is called heart failure.
If blood
is not being pumped well, but instead congesting in abnormal
places, the clinical signs of edema and jugular venous
distension are seen. The patient often feels tired and short
of breath. There are many causes of heart failure and the
treatment depends of the underlying cause. For example, some
people have systolic heart failure where their heart is not
able to pump strongly. Fewer people have a different type of
heart failure called diastolic failure because their hearts
cannot relax and allow blood to return.
Treatment
for ventricular fibrillation attempts to control the heart
rate and to reset the heart to a more normal rhythm. An
implanted defibrillator detects ventricular fibrillation and
resets or shocks the heart into a normal rhythm.
With an
implanted defibrillator, people with irregular heart beat
continue their lives with some lifestyle adjustments.
The
effects of heart failure can be minimized by controlling the
risk factors for heart disease. Obvious steps include quitting
smoking, losing weight if necessary, abstaining from alcohol,
and making dietary changes to reduce the amount of salt and
fat consumed. Regular, modest exercise is also helpful for
many patients, though the amount and intensity should be
carefully monitored by a physician.
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