Key result
Open aortic valvotomy yields lower mortality in uncalcified versus calcified valves at 10% versus 31%.
Why the study?
Does surgical treatment (closed or open valvotomy) improve outcomes in patients with severe aortic stenosis?
Cohort (n=200)
No
Does surgical treatment (closed or open valvotomy) improve outcomes in patients with severe aortic stenosis?
Early surgical experience with aortic stenosis demonstrated feasibility but highlighted high operative mortality, particularly in older patients with calcified valves.
Valve calcification linked to higher mortality after open valvotomy; extends Level 3 historical data on aortic stenosis surgery.
treatment. We have not included treated by insertion of a homograft at the end of this period.
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Baker et al. (1964) conducted a cohort in Aortic stenosis (n=200). Surgical treatment (closed or open aortic valvotomy) was evaluated on Operative mortality and clinical outcome (good vs unsatisfactory). Open aortic valvotomy resulted in a 10% operative mortality and 72% good results for uncalcified valves, compared to a 31% operative mortality and 53% good results for calcified valves.
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