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• W2610473676 abstract "Invasive studies have shown that prevalence and severity of pulmonary hypertension (PH) in patients with sickle cell disease (SCD) tend to be overestimated if based exclusively on Doppler-derived tricuspid regurgitant velocity (TRV) as surrogate noninvasive marker with a cutoff ≥2.5 m/s.We aimed to better define a subgroup of pediatric SCD patients who should be sent for invasive evaluation of pulmonary artery pressure (PAP) based on a modified echocardiographic PH screening protocol that implements evidence from Doppler-catheter comparative studies.Charts of 121 pediatric patients with stable SCD were reviewed regarding echocardiographically assessed risk for elevated PAP/PH and associated clinical characteristics. TRV cutoff was refined at ≥2.9 m/s to avoid overestimating the risk for PH. TRV was combined with additional echocardiographic parameters to avoid underestimating the PH risk.Ninety-one patients qualified for analysis. Based on our modified echocardiographic protocol, 5.5% of patients qualified for at least moderate risk for elevated PAP (compatible with PH) as opposed to 20.9% if based exclusively on TRV ≥2.5 m/s. These patients were older, homozygous for hemoglobin S (HbSS), and more anemic. No subject had an echocardiographic risk constellation suggesting more than mild PH.Our modified noninvasive screening protocol-if confirmed by invasive studies-may help to better identify a subgroup of pediatric SCD patients in whom evaluation by catheterization appears justified. Unlike estimates based on the conventional protocol, the size of the targeted subgroup compares favorably with catheterization-confirmed PH prevalence rates. Characteristics associated with an increased PH risk were also identified." @default.
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• W2610473676 date "2017-05-05" @default.
• W2610473676 modified "2023-10-16" @default.
• W2610473676 title "A modified noninvasive screening protocol for pulmonary hypertension in children with sickle cell disease-Who should be sent for invasive evaluation?" @default.
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• W2610473676 doi "https://doi.org/10.1002/pbc.26606" @default.
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• W2610473676 hasPublicationYear "2017" @default.
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