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Related Experiment Videos

Does mild valvular aortic stenosis progress during childhood?

Julio Ardura1, Carmen Gonzalez, Jesus Andres

  • 1Pediatric Cardiology, University Hospital, Facultad de Medicina, Valladolid, Spain. ardura@ped.uva.es

The Journal of Heart Valve Disease
|February 17, 2006
PubMed
Summary

Congenital valvular aortic stenosis (AS) with gradients under 40 mmHg in children is stable. These patients require no treatment and can be monitored every two years.

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Area of Science:

  • Pediatric Cardiology
  • Echocardiography
  • Valvular Heart Disease

Background:

  • The progression of congenital valvular aortic stenosis (AS) and its impact on treatment decisions in pediatric patients is debated.
  • A gradient threshold of < 40 mmHg is hypothesized to indicate stability in congenital valvular AS during follow-up.

Purpose of the Study:

  • To investigate the stability of congenital valvular AS in pediatric patients with initial gradients below 40 mmHg.
  • To determine appropriate follow-up intervals for mild, untreated congenital valvular AS.

Main Methods:

  • Longitudinal follow-up of 25 pediatric patients with isolated, untreated valvular AS for eight years.
  • Utilized clinical assessments, electrocardiography, X-radiography, and comprehensive echocardiography (M-mode, 2D, Doppler) to measure gradient, anatomy, and function.

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Main Results:

  • No significant changes in symptoms or physical examination findings were observed.
  • Cardiac enlargement decreased significantly (p < 0.001), while functional status and valvular gradients remained stable (mean difference 2.38 mmHg; p = 0.74).
  • A slight, non-significant increasing trend was noted between gradient and age (r = 0.20).

Conclusions:

  • The study confirms the stable nature of mild congenital valvular AS, particularly in patients with initial gradients < 40 mmHg.
  • These patients demonstrated stability and did not require intervention.
  • Follow-up and clinical management for such patients can be safely extended to intervals of two years or longer.