Direct flow medical percutaneous aortic valve: proof of concept.

Reginald Low, Steven F. Bolling, Khung Keong Yeo, Adrian Ebner

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


AIMS: This paper reports the technical feasibility of using the Direct Flow Medical percutaneous aortic valve (PAV) to treat patients with severe aortic stenosis (AS). METHODS AND RESULTS: Eight patients with critical AS underwent temporary implantation of the PAV. Two patients received open surgical implantation of the device while six patients underwent percutaneous implantation. The mean age of these eight patients was 58.1 years, mean pre-procedural aortic valve area was <0.65 cm2 and pre-procedural gradient was 87.6 +/- 12.4 mmHg. Procedural success was achieved in seven out of eight patients, with a mean post-implantation gradient of 17.9 +/- 9.1 mmHg. There was one death related to inferior hypogastric artery dissection. All other patients subsequently received open surgical explantation of the PAV and aortic valve replacement with a mechanical valve. CONCLUSIONS: The Direct Flow Medical PAV is technically feasible and safe to deploy in humans with severe AS and results in a significant transaortic gradient reduction.

Original languageEnglish (US)
Pages (from-to)256-261
Number of pages6
JournalEuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
Issue number2
StatePublished - Aug 2008

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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