Key result
Bifoil balloon valvuloplasty is linked to a ~118% increase in aortic valve area versus monofoil or trefoil balloons.
Why the study?
Percutaneous aortic valvuloplasty is used as palliative treatment for calcific aortic stenosis patients who are poor surgical candidates, but the results with different balloon catheters have not been compared.
Does percutaneous aortic valvuloplasty with a bifoil balloon catheter improve aortic valve area compared to single or trefoil balloons in patients with calcific aortic stenosis who are poor surgical candidates?
Observational (n=47)
Does percutaneous aortic valvuloplasty with a bifoil balloon catheter improve aortic valve area compared to single or trefoil balloons in patients with calcific aortic stenosis who are poor surgical candidates?
Percutaneous aortic valvuloplasty using a bifoil balloon catheter provides superior increases in aortic valve area and better procedural tolerance compared to single or trefoil balloons in poor surgical candidates with calcific aortic stenosis.
Answers are grounded in this paper and cite their sources.
Feasibility shown with single, bifoil, and trefoil balloons in high-risk aortic stenosis; leaves open optimal technique and durability.
Percutaneous aortic valvuloplasty is a palliative treatment for patients with calcific aortic stenosis who would be poor candidates for surgical treatment. The results and associated complications of this procedure were analysed in a series of 47 patients in which different types of dilating catheters were used. In 25 patients a single balloon (19 mm) was used (group A), in 13 patients a bifoil balloon (2 x 15mm) (group B), and in the remaining nine patients (group C) a trefoil balloon (3 x 10mm) was used. An increase in aortic valve area was achieved in all patients. The results obtained with the bifoil balloon were better than with the other types of balloon catheter, with an increase in aortic area of + 118% vs. + 74% (monofoil) and + 76% (trefoil) (P less than 0.05). The tolerance of the inflation procedure was also better with this type of balloon, as it allowed for shorter inflation and deflation times. These results show that balloon aortic valvuloplasty, when indicated, is best performed with a bifoil balloon dilating catheter, and undue complications usually do not occur.
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Voudris et al. (1989) conducted an observational in Calcific aortic stenosis (n=47). Bifoil balloon catheter vs. Monofoil and trefoil balloon catheters was evaluated on Increase in aortic valve area (p=<0.05). Percutaneous aortic valvuloplasty using a bifoil balloon resulted in a greater increase in aortic valve area (+118%) compared to monofoil (+74%) and trefoil (+76%) balloons (P<0.05).
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