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Hemodynamic progression and outcome of asymptomatic aortic stenosis in primary care

Stefano Nistri1, Pompilio Faggiano, Iacopo Olivotto

  • 1CMSR Veneto Medica, Altavilla Vicentina, Italy. snistr@tin.it

The American Journal of Cardiology
|December 14, 2011
PubMed

Insights

Rapid hemodynamic progression of aortic stenosis (AS) in primary care patients independently predicts mortality and aortic valve replacement (AVR). This progression is common in elderly, asymptomatic individuals, highlighting the need for monitoring.

Area of Science:

  • Cardiology
  • Echocardiography
  • Public Health

Background:

  • Aortic stenosis (AS) progression is often studied in specialized centers.
  • Understanding AS progression in primary care is crucial for early intervention.

Purpose of the Study:

  • To investigate the prognostic significance of rapid hemodynamic progression of AS in a nonreferral setting.
  • To identify predictors of mortality and aortic valve replacement (AVR) in asymptomatic AS patients.

Main Methods:

  • Retrospective review of clinical and echocardiographic data from 153 asymptomatic AS patients.
  • Paired echocardiograms analyzed for peak aortic velocity (Vmax) progression over a mean of 2.9 years.
  • Progression classified as slow (<0.3 m/s/yr) or fast (>0.3 m/s/yr).
  • End points: all-cause mortality and composite of mortality/AVR.

Main Results:

  • 49% of patients exhibited fast hemodynamic progression.
  • Fast progression independently predicted mortality (HR 13.352) and the composite end point (HR 12.307).
  • Initial Vmax also predicted the composite end point (HR 2.684).
  • Mortality rate exceeded the general population (p <0.001).

Conclusions:

  • Asymptomatic AS patients in primary care are often elderly and show frequent rapid hemodynamic progression.
  • Rapid Vmax increase is a significant independent predictor of both mortality and AVR.
  • These findings underscore the importance of monitoring AS progression in primary care settings.

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