Related Experiment Video

Updated: Aug 30, 2026

A Mouse 5/6th Nephrectomy Model That Induces Experimental Uremic Cardiomyopathy
07:52

A Mouse 5/6th Nephrectomy Model That Induces Experimental Uremic Cardiomyopathy

Published on: November 7, 2017

Risk factors for poor renal prognosis in children with hemolytic uremic syndrome

Alessandra Gianviti1, Alberto E Tozzi, Laura De Petris

  • 1Division of Nephrology and Dialysis, Bambino Gesù Children's Hospital and Institute for Scientific Research, Rome, Italy. gianviti@opbg.net

Pediatric Nephrology (Berlin, Germany)
|November 1, 2003
PubMed

Insights

Absence of diarrhea and Shiga toxin-producing E. coli infection are key indicators of poor prognosis in children with hemolytic uremic syndrome (HUS). Early identification of these factors aids in timely treatment for high-risk patients.

Area of Science:

  • Pediatric Nephrology
  • Infectious Diseases
  • Epidemiology

Background:

  • Predicting outcomes in pediatric hemolytic uremic syndrome (HUS) remains challenging.
  • Identifying early prognostic factors is crucial for timely intervention and improved patient outcomes.

Purpose of the Study:

  • To identify reliable early predictors of poor renal prognosis in children with HUS.
  • To facilitate prompt identification of high-risk children who may benefit from early specific treatments like plasmapheresis.

Main Methods:

  • Survival analysis and proportional hazard models were used to evaluate prognostic factors at HUS onset.
  • Factors assessed included age, prodromal diarrhea (D), leukocyte count, central nervous system (CNS) involvement, and Shiga toxin-producing E. coli (STEC) infection evidence.
  • 387 HUS cases were analyzed, with 276 tested for STEC.

Main Results:

  • Age, leukocyte count, and CNS involvement did not correlate with renal recovery time.
  • Absence of prodromal diarrhea (D-) and lack of STEC infection (STEC-) were independently linked to poor renal prognosis.
  • Only 34% of D-STEC- patients recovered normal renal function, compared to 65%-76% in other groups.

Conclusions:

  • Absence of both diarrhea and STEC infection signifies the worst prognosis in HUS patients.
  • Patients with diarrhea but without STEC infection (D-STEC+) show a significantly better prognosis.

Related Concept Videos

Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute 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...
Nephrotic Syndrome I : Introduction01:24

Nephrotic Syndrome I : Introduction

Nephrotic Syndrome is a chronic kidney disorder defined by clinical findings such as severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. These symptoms result from damage to the glomeruli, the kidney’s filtering units, increasing their permeability to proteins.Definition and Meaning:Proteinuria, defined as the loss of more than 3.5 grams of protein per day in adults, is a crucial feature of nephrotic syndrome. This condition is often accompanied by edema, the accumulation of fluid...
Chronic Kidney Disease II: Clinical Manifestations01:24

Chronic Kidney Disease II: Clinical Manifestations

Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
Acute Kidney Injury II: Pathophysiology01:29

Acute 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...
Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
Chronic Kidney Disease I: Introduction01:25

Chronic Kidney Disease I: Introduction

Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...