Renal Doppler Ultrasound May Help Identify Early…

Renal Doppler Ultrasound May Help Identify Early Hypertension Risk in Preterm Infants, Study Suggests Premature infants face a higher risk of developing cardiovascular and kidney complications during the neonatal period. However, detecting these problems early remains challenging, particularly because traditional markers of kidney injury and blood pressure changes may not fully reflect underlying physiological alterations. A new prospective study published in Kidney Dialysis suggests that the renal artery resistive index (RI), measured using Doppler ultrasound, may provide additional insight into early cardiovascular adaptation in preterm neonates and help identify infants at increased risk of early-onset hypertension. What Is the Renal Artery Resistive Index? The renal artery resistive index (RI) is a Doppler ultrasound measurement that reflects blood flow resistance within the kidneys. Rather than measuring kidney function directly, RI provides information about: Renal blood flow Vascular resistance Arterial compliance Cardiovascular-renal adaptation Because the test is non-invasive and can be performed at the bedside, researchers have explored its potential role as an early physiological marker in newborns, part