Sonographic Venous Velocity Index Identifies Patients with Chronic Kidney Disease and Severe Diastolic Dysfunction

• Published in: Ultrasound international open 2018-10, Vol.4 (4), p.E142-E148
• Main Authors: Meier, Markus, Jabs, Wolfram Johannes, Guthmann, Maria, Geppert, Gesa, Aydin, Ali, Nitschke, Martin
• Format: Article
• Language: English
• Subjects: cardiorenal syndrome; chronic kidney disease; Original; Original Article; renal ultrasound; renal venous congestion
• ISSN: 2509-596X; 2199-7152
• DOI: 10.1055/a-0684-9483

Abstract Objective Diagnosing cardiorenal syndrome (CRS) in patients with chronic kidney disease (CKD) continues to remain challenging in outpatient practice. In this study, we investigate whether a newly developed venous velocity ultrasound index (VVI) can differentiate between patients with CRS and patients with CKD of other cause or normal renal function (NRF). Methods Patients with CRS (n = 30), CKD (n=30), and NRF (n=30) were included in the study. For each patient, duplex ultrasound scans of intrarenal segmental veins were retrospectively analyzed. The VVI was calculated from the renal venous doppler curve as the ratio of the maximal positive venous velocity to the maximal negative venous velocity. Patients with CRS were compared to age-matched controls with NRF and to GFR-matched controls with CKD. Results: The GFRs of patients with CRS and those with CKD were comparable (26.4±5 and 25.6±7 ml/min/m2), as was the age in patients with CRS and NRF (6 ±12 years and 68±16 years, respectively). There was no significant difference in ejection fraction between patients with CRS and those with CKD (44.2±6.2% vs. 47.4 ±7.2), but there was a significant decrease compared to those with NRF (52.6 ±5.1, p