April 1, 1997Cardiovascular Surgery
Stentless valve replacement in the small aortic root
Why the study?
Does stentless aortic valve replacement with controlled oversizing improve haemodynamics and clinical outcomes in patients with a small aortic root?
Population
70 patients with a small aortic root, mean age 71.2 years, mean annular diameter 21.4 mm.
Design
Cohort
Authors
Discussion
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Member takes
Implication
May support oversizing stentless valves in small aortic roots; leaves open randomized confirmation of clinical benefit.
Structured PICO
Does stentless aortic valve replacement with controlled oversizing improve haemodynamics and clinical outcomes in patients with a small aortic root?
P
Population
70 patients with a small aortic root (67 with aortic stenosis), mean age 71.2 years, mean annular diameter 21.4 mm.
I
Intervention
Stentless aortic valve replacement (Toronto n=61, Freestyle n=9) using controlled oversizing adjusting valve size to the sinotubular junction diameter (23-mm prosthesis in 23 patients, 25-mm prosthesis in 47 patients).
O
Outcome
Haemodynamic performance (pressure gradient, effective valve orifice area) and clinical outcome (NYHA class).surrogate
Stentless aortic valve replacement with controlled oversizing in patients with a small aortic root improves haemodynamics and promotes left ventricular remodelling.
Cite This Study
Thomas Walther (1997) studied this question.