Page’s kidney is a condition characterized by external renal compression, often resulting from a subcapsular hematoma, which leads to a renal compartment syndrome. This syndrome can cause parenchymal damage and altered renal perfusion, commonly associated with renal trauma but also arising from invasive procedures like renal biopsies or percutaneous nephrostomies. Clinically, Page’s kidney can lead to hypertension due to the activation of the renin-angiotensin system triggered by renal hypoperfusion from parenchymal compression. Patients may also experience varying degrees of renal function impairment, and in severe cases, particularly those with solitary kidneys or renal transplants, acute renal failure can occur.
In our study, we present two cases of Page’s kidney following renal biopsy, highlighting their ultrasound findings, specifically using point-of-care ultrasound (PoCUS). Both cases exhibited reversed diastolic flow on Doppler ultrasound, a distinctive pattern consistently observed in these patients. This reversed diastolic flow is indicative of compromised renal perfusion and underscores the significance of using ultrasound as a diagnostic tool in recognizing Page’s kidney. The identification of this flow pattern can aid clinicians in the timely diagnosis and management of this condition, potentially preventing further renal damage and addressing hypertension. Our findings emphasize the need for increased awareness of ultrasound patterns in patients with a history of renal biopsy who may develop Page’s kidney, ultimately improving patient outcomes through early intervention.
