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Owing
to
the
cardiac
functional insufficiency, some
patients
with
coronary heart
disease
unfortunately need
to
be
treated
surgically, the
danger
and mortality after the
operations
are
two
times higher than that of
non-CHD
patients
of
the same
age.
ln
or-
der to reduce the danger,
it
is necessary
for
the
medical personnel
to
cooperate
with
the patients and their families
to
estimate
the
advantages
and
disadvantages
of
the
operations,
and
to
master
the indications strictly so
as
to
help
the
patients
to
tide over
the
stages
including
anethesia, operation and convalescence
success-
fully.
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