Outcome Of Acute Renal Failure Research Articles

Renal complications in children with malignancies: single-centre experience

Background and aim of the work: Renal complications in cancer patients are serious and may cause more morbidity and mortality. Acute renal dysfunction may affect optimal cancer treatment by requiring a decrease in chemotherapy dosage or by contraindicating potentially curative treatment. Our study aimed to evaluate different types of renal involvement before and after treatment of childhood malignancies. Patients and Methods: All oncology patients at Mansoura University Children's Hospital diagnosed with different types of malignancies in seven years period (January 2003 to December 2009) were retrospectively reviewed for renal involvement before or after treatment. Results: We evaluated 954 pediatric patients with different types of malignancies. Patients encountered renal involvement were 152 (15.9%). A total of 105 patients diagnosed with acute renal failure (ARF), 18 had renal masses, 3 had nephrotic syndrome and 26 had hemorrhagic cystitis. As regard outcome of acute renal failure, 70 patients (66.7%) showed complete recovery of renal function, while 27 patients died (25.7%). The remaining 8 patients (7.6%) were maintained on chronic replacement therapy. Conclusions: Renal involvement in children with cancer is a common problem. ARF is the commonest renal complication and most severe. It results from various causes. Early prediction and anticipation of renal insult and prompt management may reduce the risk of renal injury. All oncologists should keep in mind that they are not treating cancer only, but they are treating patient with cancer and should save the kidney as much as possible.

Risk factors and outcomes of acute renal failure after open cardiac surgery

The incidence, risk factors, and outcome of acute renal failure following open cardiac surgery were assessed prospectively in 5,164 consecutive patients undergoing open heart surgery between March 2006 and February 2011. Acute postoperative renal failure (creatinine>1.5 mg·dL(-1) within 3 days after surgery) developed in 64 (1.2%) patients with normal preoperative renal function (study group). A control group of 238 cardiac surgery patients who had postoperative creatinine levels≤1.5 mg·dL(-1) were selected randomly during the study period. A prospective case-control analysis of these 302 patients was performed. The mean age was 56.3±12.5 years; 191 (63.2%) were men and 111 (36.8%) were women. Pre-, intra- and postoperative risk factors for acute renal failure were evaluated. Of the patients who developed acute renal failure, 12 (18.8%) died postoperatively, which was significantly higher than the 2.1% mortality among those without acute renal failure. Five of the 10 patients (50%) who needed dialysis died. The most significant prognostic factor for mortality was cardiac dysfunction. This study confirmed that impairment of renal function after cardiac surgery is uncommon without preoperative renal impairment, but carries an increased mortality rate.

ACUTE RENAL FAILURE IN ACUTE POISONING: PROSPECTIVE STUDY FROM A TERTIARY CARE CENTRE OF SOUTH INDIA

Cases of people presenting with poisoning are likely to develop acute renal failure (ARF), which may be due to multiple mechanisms/aetiologies. These cases need careful observation and appropriate treatment. To find the risk of ARF among acute poisoning cases, identify the underlying causes and to analyse the outcome. In this prospective study with nested case control, 1,250 cases admitted to the Poison Control, Training and Research Centre of Government General Hospital, Madras Medical College were monitored and evaluated for development of ARF. Patients with history of diabetes/hypertension, known chronic kidney disease, chronic NSAID therapy, those on drugs that increase serum creatinine by inhibiting creatinine secretion and other co-morbid illnesses were excluded. Data were interpreted after subjecting them to bivariate logistic regression and then step wise multivariate analysis. Thirty-two cases developed ARF. Twenty-four were due to snake bite, the rest due to chemical poisons. Chances of developing ARF were greater (6.15%) among the poisoning due to bites and stings than chemical poisoning (0.9%). Five in the former and seven in the latter expired. Among cases bitten by snakes, only 22 (7%) cases bitten by Russell Viper Daboia russelii developed renal failure. Copper sulphate and rat killer poisonings were the commonest causes of chemical induced ARF, dichromate, indigenous medicines and vasmol 33 (paraphenelyne diamine) were the least causes for ARF. None of the patients with organophosphate developed ARF nor did any of the 150 admitted for overdose of medicines developed ARF. The risk of ARF among the cases of poisoning was 2.5%. The outcome of ARF among bites and stings was better than chemical poisoning, and the difference was highly significant (p= 0.005, OR = 0.04-1.0, 95% CI = 0.004-0.38). Early recognition and appropriate measures reduce the occurrence of ARF.

Factors predicting the outcome of acute renal failure in pregnancy.

To determine the factors predicting renal outcome in patients developing acute renal failure in pregnancy. Descriptive cohort study. Study was conducted at Nephrology Unit of Sindh Institute of Urology and Transplantation, Karachi, from October 2006 to March 2007. Patients with acute renal failure due to complications of pregnancy, with normal size of both the kidneys on ultrasound were enrolled, and followed for a period of 60 days or until recovery of renal function. Patient's age and parity, presence of antenatal care, type of complication of pregnancy, foetal outcome and duration of oliguria were compared between patients who remained dialysis dependent and those who recovered renal function. Chi-square/Fisher's exact test and student's t-test, were used for determining the association of categorical and continuous variables with dialysis dependency. The mean age was 29+/-6 years. Most patients came from rural areas of interior Sindh. Sixty eight percent did not have antenatal checkups. Antepartum haemorrhage (p=0.002) and prolonged duration of oliguria (35+/-15.7 days, p= < 0.001) were associated with dialysis dependency, which was observed in 50% of the study group. Ante-partum haemorrhage and prolonged oliguria were strong predictors of irreversible renal failure. This highlights the need for early recognition and referral, and the importance of trained birth attendants and antenatal care.

Etiology and outcome of acute renal failure in pregnancy.

To determine the etiology and outcome of Acute Renal Failure (ARF) in pregnancy. A case series. Nephrology Department of the Jinnah Postgraduate Medical Centre, Karachi, from August 2007 to July 2008. Pregnant women who were healthy previously and had developed ARF, diagnosed on oliguria (urine output <400 ml/day) and mounting azotemia (serum creatinine > 2 mg%) were included in the study. Percutaneous renal biopsy was performed for delayed recovery, i.e. after three weeks. Patients were followed up for a period of 6 months. Percentages were calculated for qualitative variables i.e. causes of ARF, mortality, morbidity and outcome in form of complete recovery, partial recovery, demise and non-recovery. A total of 43 patients with pregnancy-related ARF were included in the study. The puerperal group comprised 36 patients (83.7%). Haemorrhage was the etiology for ARF in 25 (58.1%), antepartum haemorrhage APH in 8 (18.6%) and postpartum haemorrhage PPH in 16 (37.2%) of patients. In 12 (27.9%), puerperal sepsis was the etiological factor, while 4 (9.3%) patients had DIC on presentation. Pre-eclampsia, eclampsia and HELLP syndrome accounted for 5 (11.6%). While 1 (2.3%) was diagnosed with hemolytic uremic syndrome and another one was diagnosed as ARF secondary to hypotension produced by hyperemesis gravidarum. Renal biopsy was performed in 31 patients showing that 10 had acute cortical necrosis and 21 had acute tubular necrosis. Maternal mortality was 16.2% (n=7). Of the 36 (83.7%) surviving patients, 18 (41.4%) had complete recovery of renal function; 12 (27.9%) had partial recovery; and 6 (13.9%) required chronic dialysis. Pregnancy-related ARF was associated with poor outcome. Antepartum and postpartum haemorrhage were the most common cause of ARF in pregnancy.

ACUTE KIDNEY INJURY NETWORK CRITERIA AND OUTCOMES OF RENAL FAILURE IN CRITICALLY ILL PATIENTS

PURPOSE: Renal failure in patients admitted to the ICU is associated with increased mortality. The Acute Kidney Injury Network (AKIN) has recently proposed modifications of existing criteria to improve the sensitivity of the diagnosis of acute kidney injury. We conducted a study to evaluate the prognostic value of AKIN criteria to predict the outcomes of acute renal failure in critically ill patients.

Risk factors and outcome of acute renal failure in patients with severe acute pancreatitis

Objective Acute renal failure (ARF) is one of the most common causes of death in patients with severe acute pancreatitis (SAP). Here, we aimed to investigate the risk factors of ARF in patients with SAP, assess the prognosis of patients with SAP and ARF, and seek potential measures to prevent ARF. Method A cross-sectional study was performed to analyze the data from patients with SAP. Both univariate and multivariate logistic regression analyses were performed, including 15 indices such as age, history of renal disease, Acute Physiology and Chronic Health Evaluation II scores, hypoxemia, abdominal compartment syndrome (ACS), and others. Univariate analysis was also used to compare the prognosis between the groups of patients with SAP with and without ARF. Results There was a significant difference in age, history of renal disease, Acute Physiology and Chronic Health Evaluation II scores, hypoxemia, and ACS between the groups with and without ARF. Patients with SAP and ARF had significantly longer average length of stay and intensive care unit length of stay and higher infection rate of the pancreas and mortality rate. Conclusion The significant risk factors for ARF in patients with SAP include history of renal disease, hypoxemia, and ACS. Measures that can prevent ARF include homeostasis maintenance, adequate perfusion of the kidneys, adequate oxygenation, and abdominal decompression to avoid ACS.

Outcome among patients with acute renal failure needing continuous renal replacement therapy: A single center study

Outcome of acute renal failure (ARF) and use of continuous renal replacement therapy (CRRT) have shown a consistently high mortality. (1) Evaluate the short-term patient survival. (2) Evaluate dialysis-free survival. (3) Evaluate risk factors associated with overall survival and the continued need for intermittent dialysis. We identified adults (>/=18 years) needing CRRT, treated in the critical care units of Froedtert Medical and Lutheran Hospital from January 1, 2003 till December 31, 2005. Patients were divided into two major groups needing CRRT, end stage renal disease (ESRD) (chronic dialysis) and non-ESRD with ARF. Continuous renal replacement therapy was performed with an average of 2 L replacement fluid exchanges/h. Sigma stat software was used for analysis. Comparison was done for noncontinuous variables by chi-square and t test for categorical and continuous variables, respectively. A total of 110 (ESRD 24/non-ESRD 86) patients received CRRT during study period. Over all in-hospital mortality among non-ESRD patients was 63% vs. 46% for ESRD. Among non-ESRD patients who survived, 47% needed intermittent hemodialysis on intensive care unit discharge and 28% continued to need hemodialysis at last follow-up. Among non-ESRD patients alive at discharge, those who were dialysis dependent on last follow-up were older (64.5) than those who did not require dialysis on last follow-up (58.4) P=0.347. Non-ESRD patients who died were in the hospital for an average of 17.5 days compared with 29 days for those who were discharged from the hospital. Patients with ARF needing CRRT have high in-hospital mortality. A significant percentage of patients remained dialysis dependant on last follow-up.

Incidence and outcome of acute renal failure necessitating renal replacement therapy after trauma

Acute renal failure (ARF) requiring renal replacement therapy (RRT) is uncommon in trauma patients. The aim of this study was to assess incidence and outcome in this patient group.

Intensive and less-intensive renal replacement therapy did not differ for death or kidney function in critically ill patients

ACP Journal ClubNovember 18, 2008Intensive and less-intensive renal replacement therapy did not differ for death or kidney function in critically ill patientsRobert L. Danner, MDRobert L. Danner, MDNational Institutes of Health, Bethesda, Maryland, USA (R.L.D.)Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/0003-4819-149-10-200811180-02006 SectionsAboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail Source CitationPalevsky PM, Zhang JH, O’Connor TZ, et al. Intensity of renal support in critically ill patients with acute kidney injury. N Engl J Med. 2008;359:7-20. https://pubmed.ncbi.nlm.nih.gov/18492867Clinical Impact RatingsHospitalists: Critical Care: Nephrology: Reference1 Ronco C, Bellomo R, Homel P, et al. Effects of different doses in continuous veno-venous haemofiltration on outcomes of acute renal failure: a prospective randomised trial. Lancet. 2000;356:26-30. [PMID: 10892761] Google Scholar2 RCT of Normal vs Augmented Level of Renal Replacement Therapy in ICU—RENAL. www.thegeorgeinstitute.org/research/renal/studies/rct-of-normal-vs.-augmented-level-of-renal-replacement-therapy-in-icu-renal.cfm (accessed 9 Sep 08). Google Scholar Author, Article, and Disclosure InformationAffiliations: National Institutes of Health, Bethesda, Maryland, USA (R.L.D.) PreviousarticleNextarticle Advertisement FiguresReferencesRelatedDetails Metrics November 18, 2008Volume 149, Issue 10Page: JC5-6KeywordsAcute renal failureBody weightCreatinineCritical careEffluentHospitalistsHypotensionIntensive care unitsKidneysLife expectancyMedical dialysisNecrosisNephrologyRenal critical careRenal transplantationSafetySepsisUltrafiltrationVeteran care Issue Published: November 18, 2008 Copyright & PermissionsCopyright © 2008 by American College of Physicians. All Rights Reserved.PDF downloadLoading ...

The role of dialyzer membrane flux in bio‐incompatibility

Dialyzer membrane flux is currently defined according to beta(2)-microglobulin (a middle molecule) clearance. Traditionally, high flux membranes were synthetic, and caused less inflammatory reaction in the extracorporeal circuit, compared with standard low-flux cuprophan bio-incompatible dialyzers. Initial reports suggested improved patient outcomes in acute renal failure when noncuprophan dialyzer membranes were used. However, over time these positive observations have not been substantiated. As the price differential between these dialyzer membrane types has become marginal, more high-flux dialyzers are now used in routine clinical practice. Two multicenter trials have recently reported a survival advantage for high-flux dialyzers. Whether this is directly consequent upon the choice of dialyzer membrane, or related to improvements in dialysate water quality, or changes in other clinical practices remains to be determined.

Acute Hepatitis A-Associated Acute Renal Failure in Adults

Background/Aims: The development of acute renal failure (ARF) is a very rare complication in patients with acute hepatitis A (AHA). Methods: We retrospectively investigated the overall incidence, risk factors, and clinical outcomes of ARF associated with AHA. Diagnosis of AHA was made according to the typical hepatitis symptoms and positivity of immunoglobulin M anti-hepatitis A virus in 208 patients with AHA. Results: ARF was noted in 12 (5.7%) patients, and dialysis was required in 8 (66%) patients. The median duration of hospitalization for patients with ARF was 18 days (range, 6–50 days). The development of ARF was observed in older patients (p = 0.004) and in patients with diabetes (p = 0.001), excessive alcohol consumption (p = 0.01), prolonged international normalized ratio (p = 0.019), and elevated aspartate aminotransferase concentration (p = 0.034). Multivariate analysis revealed that old age (odds ratio, OR, 1.2), elevated aspartate aminotransferase concentration (OR, 1.05), and diabetes (OR, 18.5) were independent risk factors for ARF (each p < 0.001). The prognosis of patients with ARF was good, and renal function recovered completely. Conclusion: ARF associated with AHA is not rare, and the possibility of AHA should be considered in patients with ARF with hepatic dysfunction.

Progression From Acute Kidney Injury to Chronic Kidney Disease: A Pediatric Perspective

Although emerging evidence indicates that the incidence of both acute kidney injury (AKI) and chronic kidney disease (CKD) in children is rising and the etiologies are dramatically changing, relatively little is currently known regarding the potential for transition from AKI to CKD. In both situations, early intervention can significantly improve the dismal prognosis. However, the lack of a uniform AKI definition and the paucity of early, predictive biomarkers have impaired our ability diagnose AKI early to institute potentially effective therapies in a timely manner. Fortunately, recent data has validated a multidimensional AKI classification system for children. In addition, the application of innovative technologies has identified candidates that are emerging as early biomarkers of both AKI and CKD. These include neutrophil gelatinase-associated lipocalin, liver-type fatty acid-binding protein, and kidney injury molecule-1. Studies to validate the sensitivity and specificity of these biomarkers in clinical samples from large cohorts and from multiple clinical situations are currently in progress, facilitated by the development of commercial tools for the reproducible measurement of these biomarkers across different laboratories.

Long-Term Outcomes of Acute Kidney Injury

Acute kidney injury (AKI) is common in the intensive care unit and is associated with significant morbidity and mortality. Based on the RIFLE criteria, AKI occurs in up to 67% of patients in the intensive care unit (ICU), with approximately 4% of critically ill patients requiring renal replacement therapy (RRT). It is well known that this subset of AKI patients who require RRT have an in-hospital mortality rate exceeding 50%. However, long-term outcomes of survivors of AKI requiring RRT remain poorly described. Long-term mortality is greater in those patients who survived AKI when compared with critically ill patients without AKI. Long-term morbidity, renal and extrarenal, is a frequent and underappreciated complication of AKI. Among survivors of AKI at long-term follow-up (1-10 years), approximately 12.5% are dialysis dependent (wide range of 1%-64%, depending on the patient population) and 19% to 31% have chronic kidney disease. According to the United States Renal Data System, "acute tubular necrosis without recovery" as a cause of end-stage kidney disease increased from 1.2% in 1994 to 1998 to 1.7% in 1999 to 2003. The incidence will likely continue to rise with the aging population, increase in comorbidities, and expansion of intensive care unit capabilities. AKI is an underrecognized cause of chronic kidney disease (CKD) and patients who survive should be followed closely for new CKD and/or progression of underlying CKD.

Letter by Bouchard et al Regarding Article “Aprotinin Does Not Increase the Risk of Renal Failure in Cardiac Surgery Patients”

To the Editor: Two recent publications have given rise to concerns regarding the safety of intraoperative aprotinin on renal function after cardiac surgery.1,2 Contrary to these studies, Furnary et al3 demonstrated that aprotinin does not increase the risk of acute renal failure (ARF) independently of the number of transfusions administered. We have 3 concerns regarding the findings of these studies that impair an adequate comparison of their results. First, all 3 studies used different definitions for ARF. Furnary et al3 selected the new requirement of dialysis as the ARF outcome, presumably because the risk predictive score has been validated for ARF requiring dialysis …

Evolução clínica de pacientes com insuficiência renal aguda em unidade de terapia intensiva

OBJETIVO: Avaliar a evolução clínica de pacientes com insuficiência renal aguda (IRA) submetidos a tratamento dialítico e não-dialítico na UTI. MÉTODOS: Estudo prospectivo onde foram incluídos pacientes com idade maior que 18 anos e com creatinina sérica &gt; 1,5 mg/dl. Os pacientes foram divididos em grupo dialítico e não-dialítico. RESULTADOS: Dos 70 pacientes incluídos 19 (27,1%) foram do grupo dialítico e 51 (72,9%) do grupo não-dialítico. A taxa de mortalidade foi de 42,1% no grupo dialítico e de 33,3% no grupo não-dialítico (p&lt;0,58). CONCLUSÃO: Há multifatores determinando a IRA na UTI, porém, não é causa isolada das elevadas taxas de mortalidade dos pacientes na UTI.

A positive fluid balance is associated with a worse outcome in patients with acute renal failure.

IntroductionDespite significant improvements in intensive care medicine, the prognosis of acute renal failure (ARF) remains poor, with mortality ranging from 40% to 65%. The aim of the present observational study was to analyze the influence of patient characteristics and fluid balance on the outcome of ARF in intensive care unit (ICU) patients.MethodsThe data were extracted from the Sepsis Occurrence in Acutely Ill Patients (SOAP) study, a multicenter observational cohort study to which 198 ICUs from 24 European countries contributed. All adult patients admitted to a participating ICU between 1 and 15 May 2002, except those admitted for uncomplicated postoperative surveillance, were eligible for the study. For the purposes of this substudy, patients were divided into two groups according to whether they had ARF. The groups were compared with respect to patient characteristics, fluid balance, and outcome.ResultsOf the 3,147 patients included in the SOAP study, 1,120 (36%) had ARF at some point during their ICU stay. Sixty-day mortality rates were 36% in patients with ARF and 16% in patients without ARF (P < 0.01). Oliguric patients and patients treated with renal replacement therapy (RRT) had higher 60-day mortality rates than patients without oliguria or the need for RRT (41% versus 33% and 52% versus 32%, respectively; P < 0.01). Independent risk factors for 60-day mortality in the patients with ARF were age, Simplified Acute Physiology Score II (SAPS II), heart failure, liver cirrhosis, medical admission, mean fluid balance, and need for mechanical ventilation. Among patients treated with RRT, length of stay and mortality were lower when RRT was started early in the course of the ICU stay.ConclusionIn this large European multicenter study, a positive fluid balance was an important factor associated with increased 60-day mortality. Outcome among patients treated with RRT was better when RRT was started early in the course of the ICU stay.

Causes and Treatment of Acute Renal Failure in Children

Objective: to study the causes of acute renal failure (ARF) in children and to substantiate recommendations on its treatment. Fifty-nine children with ARF were followed up in 1979 to 2004. In 90% of the patients, ARF was established to be caused by hemolytic uremic syndrome (HUS), acute intestinal infection (AII), acute glomerulonephritis, and acute intravascular hemolysis. The major cause of ARF was AII in two thirds (66.1%) of the children. In the past decade, the incidence of HUS has decreased from 55 to 40%. The authors identified the following predictors of poor ARF outcome: early age, anuria, impaired consciousness progressing to spoor and coma. A combination of these symptoms is most frequently observed in patients with HUS in which the kidneys are the major target organ and the possibilities of more than 7-day treatment for anuria without dialysis are limited. In other etiology of ARF, water deprivation, antihypertensive therapy, and exchange plasmapheresis allow patients to survive until renal function restores without renal replacement therapy, by preventing serious complications.

A prospective national study of acute renal failure treated with RRT: incidence, aetiology and outcomes

Acute renal failure (ARF) is a diverse condition with no standardized definition and is managed in several sub-specialty areas within hospitals. Its incidence and aetiology are unknown and studies show a wide range of incidences. ARF is becoming more common as the population ages leading to the hypothesis that the incidence is much higher than previous estimates. This prospective population study investigated the incidence, aetiology and outcomes of ARF based on a standardized classification of ARF treated by renal replacement therapy (RRT) in all sub-specialty areas within hospitals where such treatment takes place. Data were collected prospectively on all patients starting RRT for ARF within three 12-week periods in 2002. Two hundred eighty-six adults per million population (pmp) per year received RRT for ARF. The incidence increased with age and pre-existing comorbid illness. Two hundred twelve adults pmp per year had no evidence of pre-existing chronic kidney disease (CKD) and the remainder had acute on CKD. The median age was 67 years. Fifty-one percent of the patients received their first RRT treatment in a critical care setting. Sepsis was the most common aetiological insult contributing to ARF in 48% of the patients. Mortality was high with 48% dying within 90 days of starting RRT. Age, comorbidity, sepsis and recent surgery were independent risk factors for death in those with no pre-existing CKD. This is the first national study to describe ARF treated with RRT in all hospital locations. The hypothesis that ARF occurs more frequently than previously thought has been confirmed. This study provides data upon which to base effective decision making for prevention, patient care and resource planning for patients with ARF.

High Volume Peritoneal Dialysis for Acute Renal Failure

Peritoneal dialysis (PD) is still widely used for acute renal failure (ARF) in developing countries despite concerns about its inadequacy. Continuous PD has been evaluated in ARF by analyzing the resolution of metabolic abnormality and normalization of plasma pH, bicarbonate, and potassium. A prospective study was performed on 30 ARF patients who were assigned to high-dose continuous PD (Kt/V = 0.65 per session) via a flexible catheter (Tenckhoff) and automated PD with a cycler. Fluid removal, pH and metabolic control, protein loss, and patient outcome were evaluated. Patients received 236 continuous PD sessions; 76% were admitted to ICUs. APACHE II score was 32.2+/-8.65. BUN concentrations stabilized after 3 sessions, creatinine after 4, and bicarbonate and pH after 2. Fluid removal was 2.1+/-0.62 L/day. Creatinine and urea clearances were 15.8+/-4.16 and 17.3+/-5.01 mL/minute respectively. Normalized creatinine clearance and urea Kt/V values were 110.6+/-22.5 L/week/1.73 m(2) body surface area and 3.8+/-0.6 respectively. Solute reduction index was 41%+/-6.5% per session. Serum albumin values remained stable in spite of considerable protein losses (median 21.7 g/day, interquartile range 9.1-29.8 g/day). Regarding ARF outcome, 23% of patients presented renal function recovery, 13% remained on dialysis after 30 days of follow-up, and 57% died. High-dose continuous PD by flexible catheter and cycler was an effective treatment for ARF. It provided high solute removal, allowing appropriate metabolic and pH control, and adequate dialysis dose and fluid removal. Continuous PD can therefore be considered an alternative to other forms of renal replacement therapy in ARF.