Background: Acute renal failure is a common emergency and esspecial dangerous in the neonatal disease group, account for from 8% to 24% of among total patients to be treated at Intensive Care Unit with the high rate of mortality and complication. The mortality rate due to acute renal failure in neonatal group account for from 24.4% to 66,7%. Objectives: This study aims to learn about the clinical and laboratory characteristics as well as some risks factors of neonatal acute renal failure. Subjects and method:A descriptive, retrospective study was conduct on 64 patients without diagnosed of acute renal failure in control group and other 32 cases of acute renal failure whom treated at Neonatal Department of National Hospital for Pediatric from 1st January 2005 to 31st March 2006. Results:The diagnosis was often done in the 1st week of life and the incidence occurred in boy more than in girl.The average reatininernie\r\n', u'was 251.7\xb112.96 \xb5ol/l, the electrical disorder (in which hyperkaliernie: 78.1%, hyponatrernie: 46.9%), anernie was 18.7%, acidosis netabolique was 71.9%. Risk factors of neonatal acute renal failure: the pre-puerperal eclampsia (p = 0.023, OR=1.23), infection (p <0.001, OR = 9.53), suffocation (p <0.05, OR = 2.489), respiratory failure (p <0.001, OR = 2.489). Conclusion: The clinical signs were hyponurie and anuria, oederne and arterial hypertension.\r\n', u'\r\n', u'
Acute Kidney Injury/ diagnosis ; pathology ; Infant

Acute renal cortical necrosis in which there is destruction of the renal cortex and sparing of the renalmedulla, is a relatively rare cause of acute renal failure. A definitive diagnosis of acute renal corticalnecrosis is based on renal biopsy, but on CT(computed tomography) the rather specific contrast-enhanced appearance of acute renal cortical necrosis has been described. As renal biopsy is not available, contrast-enhanced CT is auseful, noninvasive investigate modality for the early diagnosis of acute renal cortical necrosis. We report the characteristic CT findings of acute renal cortical necrosis in a patient with acute renal failure following anoperation for abdominal trauma.
Acute Kidney Injury ; Biopsy ; Diagnosis ; Early Diagnosis ; Humans ; Kidney Cortex Necrosis* ; Tomography, X-Ray Computed*

Acute Kidney Injury ; classification ; diagnosis ; Humans ; Kidney ; injuries ; Practice Patterns, Physicians'

Acute kidney injury (AKI) has various triggers, such as ischemia, nephrotoxins, radiocontrast, and bacterial endotoxins. It occurs in about one-third of patients treated in the intensive care unit. There is a higher mortality in patients with AKI compared with their non-AKI counterparts. The diagnosis of AKI usually depends on serum creatinine (SCr) measurements. However, SCr is a delayed and unreliable indicator of AKI. The lack of early biomarkers has limited the ability to manage AKI. Fortunately, understanding the early stress response of the kidney to injury has resulted in the identification and validation of several potential novel urine and blood biomarkers. Recently, new biomarkers of AKI with more favorable characteristics than SCr have been identified and studied in various experimental and clinical settings. This article reviews the most well-established biomarkers of AKI.
Acute Kidney Injury* ; Biomarkers* ; Creatinine ; Diagnosis ; Endotoxins ; Humans ; Intensive Care Units ; Ischemia ; Kidney ; Mortality

Idiopathic renal hypouricemia is a disorder characterized by impaired urate handling in the renal tubules. Most patients with hypouricemia are asymptomatic and are found incidentally, but the condition is known to be at high risk for exercise-induced acute renal failure or urolithiasis. URAT1 protein encoded by SLC22A12 gene has been identified recently as a urate/anion exchanger in the human kidney. Inactivation mutations in SLC22A12 gene have been shown to cause renal idiopathic hypouricemia. We experienced a 3-year-old boy who presented with persistent orange-colored urine since infancy. His urine contained many uric acid crystals, while the serum showed hypouricemia(0.7 mg/dL). The fractional excretion of uric acid was increased to 41.7%. SLC22a12 gene analysis revealed W258X homozygote alleles. Renal hypouricemia must be included in the differential diagnosis of red-urine and SLC22A12 gene analysis is recommended in idiopathic renal hypouricemia.
Acute Kidney Injury ; Alleles ; Child, Preschool ; Diagnosis, Differential ; Homozygote ; Humans ; Kidney ; Male ; Uric Acid ; Urolithiasis

Acute Kidney Injury ; diagnosis ; etiology ; Biomarkers ; Early Diagnosis ; Humans ; Liver Cirrhosis ; complications ; diagnosis

Acute kidney injury (AKI) is characterized by a reversible increase in blood concentration of creatinine and nitrogenous waste products and by the inability of the kidney to regulate fluid and electrolyte homeostasis appropriately. AKI in hospitalized patients is independently associated with increased morbidity and mortality in pediatric and adult populations. Continued reliance on serum creatinine and urine output for the diagnosis of AKI has resulted in an inability to provide successful therapeutic and supportive interventions to prevent and mitigate AKI. Research efforts over the last decade have foused on the discovery and validation of novel biomarkers to detect AKI prior to a change in kidney function and to make a differential diagnosis of AKI.
Acute Kidney Injury ; classification ; diagnosis ; prevention & control ; Biomarkers ; Child ; Creatinine ; urine ; Humans

Idiopathic renal hypouricemia is a disorder characterized by impaired urate handling in the renal tubules. This disease usually produces no symptoms, but hematuria, uric acid nephrolithiasis or acute renal failure may develop. A defect in the SLC22A12 gene, which encodes the human urate transporter, is the known major cause of this disorder. We describe a 10-month-old boy with idiopathic renal hypouricemia. He was diagnosed with transient pseudohypoaldosteronism at admission, but hypouricemia was accidentally found through follow-up study. By gene analysis, his diagnosis was confirmed to idiopathic renal hypouricemia. In addition, we report a mutation in the human urate transporter 1 (hURAT1) gene identified in his family.
Acute Kidney Injury ; Diagnosis ; Follow-Up Studies ; Hematuria ; Humans ; Infant ; Male ; Nephrolithiasis ; Pseudohypoaldosteronism ; Uric Acid

The authors reported here a 23 years-old female patient with acute renal failure and anaphylaxis induced by rifampicin, who was suffered from exudative pericarditis. The diagnosis was made by its reproducibility with rifampicin. The pathogenesis of acute renal failure and anaphylaxis in this case was thought to be immunologic mechanism, because of elevated IgE and depressed complements. Relevant literature was also reviewed.
Acute Kidney Injury* ; Anaphylaxis* ; Complement System Proteins ; Diagnosis ; Female ; Humans ; Immunoglobulin E ; Pericarditis ; Rifampin ; Young Adult

Acute kidney injury is a common and serious complication after major cardiovascular surgery and is independently associated with poor short- and long-term outcomes. The pathogenesis of cardiac surgery-associated acute kidney injury is complex and involves multiple pathways including hemodynamic, inflammatory, metabolic and nephrotoxic factors. Three definitions of acute kidney injury based on serum creatinine and urine output (RIFLE, AKIN, and KDIGO criteria) have been proposed and validated. Several novel biomarkers of acute kidney injury have been developed to facilitate the subclinical diagnosis of acute kidney injury, as well as the better risk stratification of patients. Despite the high-quality research conducted in this field to date, there is very little evidence supporting specific interventions to treat acute kidney injury in patients undergoing cardiovascular surgery. Thus, early identification of high-risk patients and preventing cardiac surgery-associated acute kidney injury by mitigating risk factors or avoiding renal insults remains the mainstay of management. Although some strategies have shown promising results in renoprotection, further large randomized trials are needed to confirm the benefit of such approaches.
Acute Kidney Injury* ; Biomarkers ; Creatinine ; Diagnosis ; Hemodynamics ; Humans ; Risk Factors ; Thoracic Surgery*