The evolving approach to the evaluation of low-gradient aortic stenosis

William B. Cutting, Anthony A. Bavry

Research output: Contribution to journalReview article

Abstract

Severe aortic stenosis (AS) is typically identified by a low valve area (≤1.0 cm 2 ) and high mean gradient (≥40 mm Hg). A subset of patients are found to have a less than severe mean gradient (<40 mm Hg) despite a low valve area. These latter types can present as either low ejection fraction with low-gradient AS (stage D2) or normal ejection fraction with low-gradient AS (stage D3). Determining the true severity of disease within these categories has proved difficult. In this review we illustrate both traditional and novel techniques that can be used for further valvular assessment. We also propose a simple algorithm that can be used to evaluate low-gradient AS.

Original languageEnglish (US)
Pages (from-to)197-201
Number of pages5
JournalCardiovascular Revascularization Medicine
Volume20
Issue number3
DOIs
StatePublished - Mar 2019
Externally publishedYes

Keywords

  • Aortic valve calcium score
  • Dobutamine
  • Low-gradient aortic stenosis
  • Nitroprusside

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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