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Association of estimated plasma volume status with hemodynamic and echocardiographic parameters

Abstract : Background: Estimated plasma volume status (ePVS) has diagnostic and prognostic value in patients with heart failure (HF). However, it remains unclear which congestion markers (i.e., biological, imaging and hemodynamic markers) are preferentially associated with ePVS. In addition, there is evidence of sex differences in both the hematopoietic process and myocardial structure/function.Method and results: Patients with significant dyspnea (NYHA≥2) underwent echocardiography and lung ultrasound within four hours prior to cardiac catheterization. Patients were divided according to tertiles based on sex-specific ePVS thresholds calculated from hemoglobin and hematocrit measurements using Duarte’s formula.Among the 78 included patients (median age 74.5 years; males 69.2%; HF 48.7%), median ePVS was 4.1 (percentile25-75=3.7-4.9) ml/g in males (N=54) and 4.8 (4.4-5.3) ml/g in females (N=24). Patients with the highest ePVS had more frequently HF, higher NT-proBNP, larger left atrial volume and higher E/e’ (all p-values<0.05), but no difference in inferior vena cava diameter or pulmonary congestion assessed by lung ultrasound (all p-values>0.10). In multivariable analysis, higher E/e’ and lower diastolic blood pressure were significantly associated with increased ePVS. The association between ePVS and congestion variables was not sex-dependent except for left ventricular end-diastolic pressure, which was only correlated with ePVS in females (Spearman Rho=0.53, p<0.01 in females and Spearman Rho=-0.04, p=0.76 in males; pinteraction=0.08).Conclusion: ePVS is associated with E/e’ regardless of sex, while only associated with invasively measured left ventricular end-diastolic pressure in females. These results suggest that ePVS is preferably associated with left-sided hemodynamic markers of congestion.
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Submitted on : Wednesday, April 29, 2020 - 3:24:41 PM
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Masatake Kobayashi, Olivier Huttin, Erwan Donal, Kévin Duarte, Arnaud Hubert, et al.. Association of estimated plasma volume status with hemodynamic and echocardiographic parameters. Clinical Research in Cardiology, Springer Verlag, 2020, 109 (8), pp.1060-1069. ⟨10.1007/s00392-020-01599-9⟩. ⟨hal-02470874⟩

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