alexa Pulmonary valve stenosis | Belgium | PDF | PPT| Case Reports | Symptoms | Treatment

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Pulmonary Valve Stenosis

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  • Pulmonary valve stenosis

     Pulmonary valve stenosis is a condition characterized by obstruction to blood flow from the right ventricle to the pulmonary artery. This obstruction is caused by narrowing (stenosis) at one or more points from the right ventricle to the pulmonary artery. The most common form of pulmonary stenosis is obstruction at the valve itself, referred to as pulmonary valvar stenosis.

  • Pulmonary valve stenosis

    Patients with mild pulmonary valve stenosis are healthy, can participate in all types of physical activities and sporting events, and lead normal lives. The type of treatment required depends on the type of valve abnormality present. Most commonly, the pulmonary valve is of normal size, and the obstruction is due to fusion along the commissures or lines of valve leaflet opening. This "typical" form of pulmonary valve stenosis responds very nicely to balloon dilation. Balloon dilation valvuloplasty is performed at the time of cardiac catheterization and does not require open-heart surgery. 

  • Pulmonary valve stenosis

    Analysis around Belgium on pulmonary valve stenosis got the result as that in the studied population, resting heart rate (89±11 vs 75±14âbpm; p=0.001), peak power (199±66 vs 263±68 W; p=0.006); peak VO2 (31.2±9.9 vs 39±7.4âmL/kg/min; p=0.011); oxygen uptake efficiency slope (2430±913 vs 3292±943(mL/min)/(L/min); p=0.007) and VE/VCO2 slope (26.8±5.2 vs 22.6±4.3; p=0.01) differed significantly from controls. A linear increase of peak PV gradient with increasing flow was observed in the pooled dataset (Pearson's R=0.947; p<0.0001) and slopes identical as for control patients were obtained for the oxygen pulse-workload relationship. Right heart morphology and function were preserved in the studied patients.

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