Related Experiment Video
Updated: Aug 12, 2026
07:54
Use of a Hanging-weight System for Isolated Renal Artery Occlusion
Published on: July 19, 2011
Transient acute renal failure in the neonate
J A Salisz1, E J Kass, A A Cacciarelli
1Department of Urology, William Beaumont Hospital, Royal Oak, Michigan.
Urology
|February 1, 1993
Summary
Transient renal insufficiency in newborns, marked by hyperechoic renal pyramids, resolves quickly with proteinuria. This distinct neonatal acute kidney injury entity shows a good prognosis and rapid recovery.
Area of Science:
- Neonatal Medicine
- Pediatric Nephrology
- Medical Imaging
Background:
- Transient renal insufficiency in newborns is a recognized clinical concern.
- Ultrasonographic findings and urography can indicate renal abnormalities in neonates.
Observation:
- Observed transient renal insufficiency in newborns with hyperechoic renal pyramids on ultrasound.
- Noted rapid resolution coinciding with ultrasound normalization and proteinuria.
Findings:
- Suggests hyaline cast deposition in collecting tubules may cause imaging abnormalities.
- Protein deposition's role (cause or result) in transient renal dysfunction remains unclear.
Implications:
- Adds evidence for a distinct neonatal acute kidney injury entity with characteristic features.
- This condition in neonates has a favorable prognosis and resolves rapidly.
Related Concept Videos
01:27Acute Pyelonephritis I: Introduction
Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such as Proteus,...
01:22Acute Kidney Injury I: Introduction
Introduction:Acute Kidney Injury (AKI) describes a swift decrease in kidney function occurring over hours to days, characterized by the kidneys' failure to remove waste products from the bloodstream. This leads to dangerous complications like metabolic acidosis, fluid overload, and electrolyte imbalances, such as hyperkalemia, which can cause life-threatening arrhythmias. AKI is common in both hospital and outpatient settings, often triggered by dehydration, sepsis, or exposure to nephrotoxic...
01:29Acute Kidney Injury II: Pathophysiology
Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
01:29Acute Kidney Injury III: Clinical Manifestations
Acute Kidney Injury (AKI) progresses through distinct clinical phases: the oliguric, diuretic, and recovery phases, each marked by unique manifestations and challenges.Oliguric Phase:The oliguric phase is the initial stage of AKI, typically lasting 10 to 14 days. This phase is marked by a significant reduction in urine output, usually less than 400 mL per day, indicating decreased kidney function. Fluid retention is a prominent feature, leading to symptoms such as edema, hypertension, and...
01:30Acute Kidney Injury IV: Diagnostic Studies and Prevention
Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
01:20Acute Kidney Injury V: Interprofessional Care
Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.Fluid and Electrolyte ManagementFluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are...