الفهرس 
Anatomy of aortic valveOnly 14 pages are availabe for public view
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Abstract
Summary
New advances in cardiac surgery including myocardial protection techniques and
perioperative monitoring and care protocols mandates reevaluation of previously
determined risk
groups and risk factors in light of these advances.
Aortic stenosis is becoming common entity; we face nowadays, for more oriented
and physically active patients seeking for medical service to
provide treatment
with safe
st
procedure and best long
-
term outc
ome.
Surgical aortic valve replacement provides proved long
-
term outcome for aortic
stenosis relieve; but it is still has morbidities and mortalities especially in
subgroup of patients with left ventricular dysfunction that make physicians and
patients too
k time to revise decision making in best option for that patients to
relieve their left ventricular outflow obstruction.
Low transvalvular gradient was thought to increase risk of procedure and
alarming less favorable surgical outcome, sending more patient
s away from
surgery to less profitable treatments as medical treatments with statins and
angiotensin converting enzyme inhibitors and in recent years to
more profitable
appealing option of
transcatheter aortic valve replacement.
We designed our study to ev
aluate the effect of mean transvalvular gradient on
outcome of surgical aortic valve replacement for
those patients with
severe aortic
stenosis and low left ventricular ejection fraction.
This study included forty patients presented with severe aortic ste
nosis and low
ejection fraction. They were subdivided into two groups according to mean
transvalvular gradient as Group A (High pressure) with mean pressures more than
40 mmHg and Group B (Low pressure) with mean pressures less than 40 mmHg.