scholarly journals Acute kidney injury as a predictor of poor outcome post cardiopulmonary bypass in children

2016 ◽  
Vol 4 (1) ◽  
pp. 234
Author(s):  
Shahzad Alam ◽  
Akunuri Shalini ◽  
Rajesh Hegde ◽  
Rufaida Mazahir

Background: We objective of the current study was to identify the prevalence of AKI and classify them based on Acute Kidney Injury Network (AKIN) staging system. We also evaluated the outcome of patients developing AKI and identified the associated risk factors.Methods: This retrospective study was conducted in pediatric cardiac ICU of a tertiary care hospital. Patient < 18 years who underwent cardiac surgery on cardiopulmonary bypass (CPB) for congenital heart disease were enrolled in the study. AKI was defined as increase in serum creatinine ≥ 0.3 mg/dl within 48 hours or 1.5 times or more from baseline within the first 7 days post-surgery. Results: Nine hundred and twenty children were enrolled in the study. Three hundred and twelve (34%) children developed AKI with 202 (20%) developing stage I, 92 (10%) stage II and 18 (2%) stage III. Resolution was achieved in all the patients and none developed chronic kidney disease. Risk factors for AKI were higher CPB time, higher aortic cross clamp time, significant arrhythmias and higher inotropic requirement at admission. Children with stage 2 and 3 disease had higher odds for requirement of mechanical ventilation > 24 hours and > 72 hours, length of ICU stay > 5 days and in hospital mortality.   Conclusions: AKI following cardiac surgery is common. Although majority of the cases are mild disease and self-limiting it can significantly affect the outcome of these patients.  

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Zorica Dimitrijevic ◽  
Branka Mitic ◽  
Danijela Tasic ◽  
Goran Paunovic ◽  
Karolina Paunovic ◽  
...  

Abstract Background and Aims Low platelet count is a marker of adverse events in acute kidney injury (AKI) patients. Thrombocytopenia has often been reported as an indicator of underlying disease severity and worse patient outcomes; however, it’s role in the prediction of the risk of bleeding is not well defined. Our study aimed to assess the prognostic impact of admission thrombocytopenia in the risk of major bleeding in non-septic, non-post surgery AKI patients. Method This retrospective study enrolled patients with AKI hospitalized at tertiary care hospital during the three years. Admission thrombocytopenia was defined as a platelet count &lt; 150x103/mL. The primary endpoint was major bleeding, as defined by the International Society on Thrombosis and Haemostasis. Results Of 178 included patients (age 61.7±11.1 years; 68.3% males), 26 (14.6%) had thrombocytopenia. These patients had more comorbidities: cancer (19.4 vs 9.6%; p=0.05); previous ulcer disease (17.6 vs. 8.8; p=0.04) and bleeding history (7.4% vs. 2.0%;p=0.04). While in a hospital, there was a trend for the use of more blood transfusions (7.4% vs. 2.7%; p=0.03) and more concomitant medications (12.7 vs. 5.1; p&lt;0.05) in patients with thrombocytopenia. During a hospital stay (IQR: 7-29 days), 19 patients (10.7%) died), 22 (12.35%) had major bleeding, and 5 (2.8%) intracranial bleeding. After adjusting for age, presence of cancer, and use of oral anticoagulant medications, patients with thrombocytopenia had a higher risk of major bleeding (HR 3.34 95%CI: 1.57-7.26; p &lt; 0.001). Conclusion Thrombocytopenia is a predictor of major intrahospital bleeding in the non-septic, non-post surgery AKI patients. It should be regarded in bleeding risk estimation and therapeutic strategy decisions.


2013 ◽  
Vol 35 ◽  
pp. 129-134 ◽  
Author(s):  
Matthias Kornek ◽  
Marcus-André Deutsch ◽  
Stefan Eichhorn ◽  
Harald Lahm ◽  
Stefan Wagenpfeil ◽  
...  

Background. Cardiac surgery-associated acute kidney injury (CSA-AKI) depicts a major complication after cardiac surgery using cardiopulmonary bypass (CPB).Objective. CSA-AKI has clearly been linked to increased perioperative morbidity and mortality. Dysregulations of vasomotor tone are assumed to be causal for CSA-AKI. While catechol-O-methyltransferase (COMT) is involved in metabolizing catecholamines, a single-nucleotide polymorphism (SNP) in the COMT gene leads to different enzyme activities according to genotype. Pilot studies found associations between those COMT genotypes and CSA-AKI.Methods. We prospectively included 1741 patients undergoing elective cardiac surgery using cardiopulmonary bypass (CPB). Patients were genotyped for COMT-Val158Met-(G/A) polymorphism (rs4680).Results. Demographic characteristics and procedural data revealed no significant differences between genotypes. No association between COMT genotypes and the RIFLE criteria could be detected. A multiple linear regression analysis for postoperative creatinine increase revealed highly significant associations for aortic cross-clamp time (P<0.001), CPB time (P<0.001), norepinephrine (P<0.001), and age (P<0.001). No associations were found for COMT genotypes or baseline creatinine. With anR2=0.39and a sample size of 1741, the observed power of the regression analysis was >99%.Conclusions. Based on our results, we can rule out an association between the COMT-Val158Met-(G/A) polymorphism and the appearance of CSA-AKI.


Author(s):  
VS Gaurav Narayan ◽  
SG Ramya ◽  
Sonal Rajesh Kumar ◽  
SK Nellaiappa Ganesan

Introduction: The Acute Kidney Injury (AKI) is a rapid decline in renal filtration function. The aetiological spectrum, prevalence of AKI and outcome is highly variable. This variation exists due to the difference in the criteria used, study population and demographic features. Huge differences are noted when AKI is compared in developing and developed countries. Hence, it is important to analyse the spectrum of AKI to facilitate earlier diagnosis and treatment which shall help in improving the outcome. Aim: To study the prevalence, aetiology and outcome of AKI in the medical intensive care. Materials and Methods: This was a prospective observational study conducted in a medical intensive care for 18 months where 1490 patients were screened and 403 patients were included as AKI by KDIGO criteria. History, examination, appropriate investigations and treatment details including dialysis were noted. The serum creatinine levels were obtained every day, to know the time of onset of AKI, at the time of death or discharge, and after one month for patients who turned up for follow-up. Patients were categorised based on outcome as survivors and nonsurvivors. Survivors were divided into as fully recovered and partially recovered and those who left the Intensive Care Unit (ICU) against medical advice were termed as lost to follow-up. Results: A total of 403 patients (27.04% of 1490) of medical intensive care admissions were found to have AKI. Sepsis was the most common cause of AKI. At the end of the month, 78.4% of AKI patients fully recovered, 1.2% partially recovered and the mortality was 14.9%. Mortality was higher in AKI associated with chronic medical conditions like cardiac failure, chronic liver disease and stroke. Conclusion: If treated early, AKI is mostly reversible. Regional differences in AKI should be studied extensively and local guidelines should be formulated by experts for prevention and early treatment, to improve the disease outcome.


Author(s):  
Wenyan Liu ◽  
Yang Yan ◽  
Dan Han ◽  
Yongxin Li ◽  
Qian Wang ◽  
...  

Abstract Background Systemic inflammation contributes to cardiac surgery–associated acute kidney injury (AKI). Cardiomyocytes and other organs experience hypothermia and hypoxia during cardiopulmonary bypass (CPB), which induces the secretion of cold-inducible RNA-binding protein (CIRP). Extracellular CIRP may induce a proinflammatory response. Materials and Methods The serum CIRP levels in 76 patients before and after cardiac surgery were determined to analyze the correlation between CIRP levels and CPB time. The risk factors for AKI after cardiac surgery and the in-hospital outcomes were also analyzed. Results The difference in the levels of CIRP (ΔCIRP) after and before surgery in patients who experienced cardioplegic arrest (CA) was 26-fold higher than those who did not, and 2.7-fold of those who experienced CPB without CA. The ΔCIRP levels were positively correlated with CPB time (r = 0.574, p < 0.001) and cross-clamp time (r = 0.54, p < 0.001). Multivariable analysis indicated that ΔCIRP (odds ratio: 1.003; 95% confidence interval: 1.000–1.006; p = 0.027) was an independent risk factor for postoperative AKI. Patients who underwent aortic dissection surgery had higher levels of CIRP and higher incidence of AKI than other patients. The incidence of AKI and duration of mechanical ventilation in patients whose serum CIRP levels more than 405 pg/mL were significantly higher than those less than 405 pg/mL (65.8 vs. 42.1%, p = 0.038; 23.1 ± 18.2 vs. 13.8 ± 9.2 hours, p = 0.007). Conclusion A large amount of CIRP was released during cardiac surgery. The secreted CIRP was associated with the increased risk of AKI after cardiac surgery.


2021 ◽  
pp. 201-204
Author(s):  
Shashikantha Shashikantha ◽  
Sohil Sharda. ◽  
Bernice Robert ◽  
Gangurde Bhushan Daulatrao

INTRODUCTION: Acute kidney injury is a common occurrence in ICU admissions causing increased morbidity and mortality. Present study aimed to determine the causes and prognostic factors of acute kidney injury in intensive care unit. MATERIAL AND METHODS: This Hospital based Cross sectional Study was conducted at a tertiary care Hospital and Research Center, including 100 patients aged >18 years with Acute Kidney Injury admitted in ICU from the period of October 2018 to June 2020. Patients with chronic renal disease, previous renal transplantation, congenital renal disease were excluded from the study. RESULTS: Most of the patients (63%) were aged above 50 years. Diabetes was found in 55% and hypertension in 26% of AKI cases. Most common cause identied were sepsis, CLD, renal, CNS and CVD. Hypotension occurred in 48% patients, while oliguria occurred in 45% patients. Ventilatory support was required by 43% patients, while 31% patients required haemodialysis. Mortality rate in AKI was 51%. Mortality was signicantly associated with advanced age, presence of Diabetes, and RIFLE criteria. Spot urine <40 meq/L, hyperkalemia, serum creatinine >4 mg/dl, blood urea >100 mg/dl and acidosis were associated with higher mortality. CONCLUSION: Continuous monitoring parameters like Spot Fe Na, Serum Potasium and pH especially in patients at risk, like elderly patients with diabetes, those with sepsis, can help in early identication and appropiate management, thus reduce the incidence or severity of AKI.


Author(s):  
Molina U. Patel ◽  
Yuvraj Jadeja ◽  
Niket Patel ◽  
Nayana Patel ◽  
Smruti Vaishnav ◽  
...  

Background: Acute Kidney Injury is a common medical problem affecting approximately 5% of all hospitalized and 30% of critically ill patients. The incidence in obstetric patients ranges from 1 in 2000 to 1 in 25000 pregnancies. In India till date, the impact of AKI on fetomaternal outcome and pertaining therapeutic interventions is only sparsely studied.Methods: It is a retrospective cross-sectional study. All obstetric patients with AKI on dialysis, admitted to Shree Krishna Hospital, a tertiary care hospital in Karamsad village in Gujarat from January 2013 to August 2015. Multivariate statistical analysis of clinical and laboratory parameters was performed using SPSS program to obtain the results.Results: The incidence of dialysis was 1.6%. HELLP syndrome and pre-eclampsia (80%) was found to be the most common etiology of AKI followed by Congestive cardiac failure (34.5%), hemorrhage and sepsis in 30% resp. All patients were admitted to ICU care. No significant difference was found between SAP II and SOFA monitoring system. Mechanical ventilation was done to support 53.3% and inotropic support was needed by 56.7% patients. According to the RIFLE criteria, majority of the patients fall under risk category followed by injury. 18% of the patients developed End Stage Renal Disease.Conclusions: In view of the multifaceted etiologies and complexity of management of AKI, a multi-disciplinary approach involving nephrologist, intensivists, obstetricians and neonatologists is extremely important.


2020 ◽  
Vol 10 (5) ◽  
pp. 340-352
Author(s):  
Faeq Husain-Syed ◽  
Maria Giovanna Quattrone ◽  
Fiorenza Ferrari ◽  
Pércia Bezerra ◽  
Salvador Lopez-Giacoman ◽  
...  

Introduction: Cardiac surgery-associated acute kidney injury (CSA-AKI) is associated with increased morbidity and mortality. Objectives: We aimed to identify potentially modifiable risk factors for CSA-AKI. Methods: This was asingle-center retrospective cohort study of 495 adult patients undergoing cardiac surgery. AKI was diagnosed and staged using full KDIGO criteria incorporating baseline serum creatinine (SC) levels and correction of postoperative SC levels for fluid balance. We examined the association of routinely available clinical and laboratory data with AKI using multivariate logistic regression modeling. Results: A total of 103 (20.8%) patients developed AKI: 16 (15.5%) patients were diagnosed with AKI upon hospital admission, and 87 (84.5%) patients were diagnosed with CSA-AKI. Correction of SC levels for fluid balance increased the number of AKI cases to 104 (21.0%), with 6 patients categorized to different AKI stages. Univariate logistic regression analysis identified five preoperative (age, sex, diabetes mellitus, preoperative systolic pulmonary arterial pressure [PSPAP], acute decompensated heart failure) and five intraoperative predictors of AKI (age, sex, red blood cell [RBC] volume transfused, use of minimally invasive surgery, duration of cardiopulmonary bypass). When all preoperative and intraoperative variables were incorporated into one model, six predictors remained significant (age, sex, use of minimally invasive surgery, RBC volume transfused, PSPAP, duration of cardiopulmonary bypass). Model discrimination performance showed an area under the curve of 0.69 for the model including only preoperative variables, 0.76 for the model including only intraoperative variables, and 0.77 for the model including all preoperative and intraoperative variables. Conclusions: Use of minimally invasive surgery and therapies mitigating PSPAP and intraoperative blood loss may offer protection against CSA-AKI.


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