Key result
Carrier-ring Dacron aortic valve replacement shows a ~9% early post-operative mortality rate.
Why the study?
Aortic valve replacement is challenging when free grafting is not applicable due to dilated aortic root and friable aortic wall, necessitating alternative methods.
Does the insertion of Dacron-supported grafts on carrier rings provide a practicable method for aortic valve replacement in patients with dilated aortic root and friable aortic wall?
Observational (n=11)
Does the insertion of Dacron-supported grafts on carrier rings provide a practicable method for aortic valve replacement in patients with dilated aortic root and friable aortic wall?
The use of Dacron-supported grafts on carrier rings is a feasible surgical technique for aortic valve replacement in patients with dilated aortic roots and friable aortic walls.
Answers are grounded in this paper and cite their sources.
May support use in dilated roots with friable walls; hypothesis-generating and requires larger prospective validation.
A method is described for inserting grafts on carrier rings in the aortic area when conditions for free grafting are not applicable, namely, dilated aortic root and friable aortic wall. In addition these grafts are suitable for use in the atrio-ventricular position. The results of 11 cases are presented; one early post-operative death occurred, the follow-up period being 3 to 6 months. It is shown that this method is practicable, the incidence of post-operative aortic incompetence may be reduced, and post-operative gradients do not occur if a valve of sufficient internal diameter is used.
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Watson et al. (1968) conducted an observational in Dilated aortic root and friable aortic wall requiring aortic valve replacement (n=11). Dacron-supported grafts on carrier rings was evaluated on Early post-operative death. Aortic valve replacement using Dacron-supported grafts on carrier rings in 11 patients resulted in 1 early post-operative death over 3 to 6 months of follow-up.
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