Response: Role of True Cardiopulmonary Bypass Time and Acute Kidney Injury After Cardiopulmonary Bypass

2012 ◽  
Vol 26 (2) ◽  
pp. e19-e20
Author(s):  
Avinash B. Kumar ◽  
Manish Suneja
Perfusion ◽  
2020 ◽  
Vol 36 (1) ◽  
pp. 78-86
Author(s):  
Laura Turner ◽  
Ashutosh Hardikar ◽  
Matthew D Jose ◽  
Keshav Bhattarai ◽  
Carmel Fenton ◽  
...  

Introduction: Acute kidney injury after cardiopulmonary bypass surgery is associated with morbidity and mortality. This study aims to evaluate the role of low perfusion flow and pressure in the development of cardiopulmonary bypass–associated acute kidney injury, stroke and death, using multicentre registry data. Methods: We identified patients from the Australian and New Zealand Collaborative Perfusion Registry who underwent coronary artery bypass grafting and/or valvular surgery between 2008 and 2018. Primary predictor variables were the length of time the perfusion flow was <1.6 L/min/m2 and the length of time perfusion pressure was < 50mmHg. The primary outcome was new postoperative acute kidney injury defined by the risk-injury-failure-loss-end stage criteria. Secondary outcomes were stroke and in-hospital death. The influence of perfusion flow and pressure during cardiopulmonary bypass on the primary and secondary outcomes was estimated using separate multivariate models. Results: A total of 16,356 patients were included. The mean age was 66 years and 75% were male. Acute kidney injury was observed in 1,844 patients (11%), stroke in 204 (1.3%) and in-hospital death in 286 (1.8%). Neither the duration of the time spent for perfusion flow (<1.6 L/minute/m2) nor the duration of the time spent for perfusion pressure (<50 mmHg) was associated with postoperative acute kidney injury, stroke or death in adjusted models. Conclusions: Neither low perfusion pressure nor low perfusion flow during cardiopulmonary bypass were predictive of postoperative acute kidney injury, stroke or death.


QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Mohamed Abd-El Khalek Mohamed Ali ◽  
Diaa Abd-El Khalek Akl ◽  
Mohamed Samir Mohamed Salama

Abstract Background Cardiac-surgery associated acute kidney injury (CSA-AKI) remains an important and frequent complication in patients undergoing cardiac surgery and is associated with a poor short- and long-term prognosis. The incidence for CSA-AKI according to Acute Kidney Injury Network criteria (AKIN) varies between 3% and 50%. CSA-AKI requiring temporary renal replacement therapy (RRT) occurs in 5% to 20% of these patients and is associated with a high mortality rate. Objective To detect the relation between prolonged cardiopulmonary bypass time in cardiac surgery and the incidence of post-operative acute kidney injury. Patients and Methods This is an observational retrospective study conducted on (80) adult patients who underwent elective cardiac surgery at Aswan Heart Centre (Magdi Yacoub Foundation) after the approval of the Ethical Medical Committee of Aswan Heart Centre. Results Results of the statistical analysis of the present study showed that mean CPB duration was prolonged in the AKI group of patients (155 min) than the non-AKI group of patients (129 min). Conclusion Prolonged cardiopulmonary bypass duration may be an independent risk factor for acute kidney injury post cardiac surgery in adult patients.


2017 ◽  
Vol 28 (2) ◽  
pp. 243-251 ◽  
Author(s):  
Karl Reiter ◽  
Gunter Balling ◽  
Vittorio Bonelli ◽  
Jelena Pabst von Ohain ◽  
Siegmund Lorenz Braun ◽  
...  

AbstractIntroductionAcute kidney injury is a frequent complication after cardiac surgery with cardiopulmonary bypass in infants. Neutrophil gelatinase-associated lipocalin has been suggested to be a promising early biomarker of impending acute kidney injury. On the other hand, neutrophil gelatinase-associated lipocalin has been shown to be elevated in systemic inflammatory diseases without renal impairment. In this secondary analysis of data from our previous study on acute kidney injury after infant cardiac surgery, our hypothesis was that neutrophil gelatinase-associated lipocalin may be associated with surgery-related inflammation.MethodsWe prospectively enrolled 59 neonates and infants undergoing cardiopulmonary bypass surgery for CHD and measured neutrophil gelatinase-associated lipocalin in plasma and urine and interleukin-6 in the plasma. Values were correlated with postoperative acute kidney injury according to the paediatric Renal-Injury-Failure-Loss-Endstage classification.ResultsOverall, 48% (28/59) of patients developed acute kidney injury. Of these, 50% (14/28) were classified as injury and 11% (3/28) received renal replacement therapy. Both plasma and urinary neutrophil gelatinase-associated lipocalin values were not correlated with acute kidney injury occurrence. Plasma neutrophil gelatinase-associated lipocalin showed a strong correlation with interleukin-6. Urinary neutrophil gelatinase-associated lipocalin values correlated with cardiopulmonary bypass time.ConclusionOur results suggest that plasma and urinary neutrophil gelatinase-associated lipocalin values are not reliable indicators of impending acute kidney injury in neonates and infants after cardiac surgery with cardiopulmonary bypass. Inflammation may have a major impact on plasma neutrophil gelatinase-associated lipocalin values in infant cardiac surgery. Urinary neutrophil gelatinase-associated lipocalin may add little prognostic value over cardiopulmonary bypass time.


2019 ◽  
Vol 4 (7) ◽  
pp. S234
Author(s):  
L. TURNER ◽  
A. Hardikar ◽  
M. Jose ◽  
K. Bhattarai ◽  
C. Fenton ◽  
...  

2016 ◽  
Vol 19 (6) ◽  
pp. 289 ◽  
Author(s):  
Mehmet Yilmaz ◽  
Rezan Aksoy ◽  
Vildan Kilic Yilmaz ◽  
Canan Balci ◽  
Cagri Duzyol ◽  
...  

Objective: This study evaluated the relationship between the amount of urinary output during cardiopulmonary bypass and acute kidney injury in the postoperative period of coronary artery bypass grafting.Methods: Two hundred patients with normal preoperative serum creatinine levels, operated on with isolated CABG between 2012-2014 were investigated retrospectively. The RIFLE (Risk, injury, failure, loss of function, and end-stage renal disease) risk scores were calculated for each patient in the third postoperative day. Patients were distributed into two groups in relation to the presence of acute kidney injury or not and these two groups were compared.Results: The urinary output (mL/kg/hour) during cardiopulmonary bypass in the acute kidney injury negative group was significantly higher than in the acute kidney injury positive group (P = .022). In case of a urinary output value 3.70 and lower to predict acute kidney injury positivity, sensitivity was detected as 71.43%. Results of the analysis for urinary output predict positivity of acute kidney injury.Conclusion: We suggest that urine output during cardiopulmonary bypass is a significant criteria that could predict acute kidney injury following coronary artery bypass grafting with cardiopulmonary bypass. Attempts to increase the urine output during cardiopulmonary bypass could help to maintain the renal functions during and after surgery.


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