Renal arterial Doppler perfusion pattern with and without ductal steal

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Acute kidney injury (AKI) is a known phenomenon in premature infants with hemodynamically significant patent ductus arteriosus (PDA). Ductal steal may result in widened pulse pressure, bounding pulses, pulmonary overflow and organ injury with reduced blood flow to brain, intestines, or kidney. Assessing for vascular steal at bedside includes obtaining Doppler arterial flow patterns in various organs including the kidney. The pattern of reduced flow and organ(s) affected in symptomatic PDA may be variable.

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