Association of Intraoperative Hypotension with Acute Kidney Injury after Elective Noncardiac Surgery

2015 ◽  
Vol 123 (3) ◽  
pp. 515-523 ◽  
Author(s):  
Louise Y. Sun ◽  
Duminda N. Wijeysundera ◽  
Gordon A. Tait ◽  
W. Scott Beattie
Keyword(s):  
Acute Kidney Injury ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
Primary Outcome ◽  
Kidney Injury ◽  
Noncardiac Surgery ◽  
Intraoperative Hypotension ◽  
Outcome Relationship ◽  
Surgical Duration ◽  
Postoperative Aki

Abstract Background: Intraoperative hypotension (IOH) may be associated with postoperative acute kidney injury (AKI), but the duration of hypotension for triggering harm is unclear. The authors investigated the association between varying periods of IOH with mean arterial pressure (MAP) less than 55, less than 60, and less than 65 mmHg with AKI. Methods: The authors conducted a retrospective cohort study of 5,127 patients undergoing noncardiac surgery (2009 to 2012) with invasive MAP monitoring and length of stay of 1 or more days. Exclusion criteria were preoperative MAP less than 65 mmHg, dialysis dependence, urologic surgery, and surgical duration less than 30 min. The primary exposure was IOH. The primary outcome was AKI (50% or 0.3 mg/dl increase in creatinine) during the first 2 postoperative days. Multivariable logistic regression was used to model the exposure–outcome relationship. Results: AKI occurred in 324 (6.3%) patients and was associated with MAP less than 60 mmHg for 11 to 20 min and MAP less than 55 mmHg for more than 10 min in a graded fashion. The adjusted odds ratio of AKI for MAP less than 55 mmHg was 2.34 (1.35 to 4.05) for 11- to 20-min exposure and 3.53 (1.51 to 8.25) for more than 20 min. For MAP less than 60 mmHg, the adjusted odds ratio for AKI was 1.84 (1.11 to 3.06) for 11- to 20-min exposure. Conclusions: In this analysis, postoperative AKI is associated with sustained intraoperative periods of MAP less than 55 and less than 60 mmHg. This study provides an impetus for clinical trials to determine whether interventions that promptly treat IOH and are tailored to individual patient physiology could help reduce the risk of AKI.

scholarly journals Association of Intraoperative Hypotension with Acute Kidney Injury after Noncardiac Surgery in Patients Younger than 60 Years Old

2019 ◽  
Vol 44 (2) ◽  
pp. 211-221 ◽  
Author(s):  
Yongzhong Tang ◽  
Chaonan Zhu ◽  
Jiabin Liu ◽  
Anli Wang ◽  
Kaiming Duan ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Primary Outcome ◽  
Kidney Injury ◽  
Noncardiac Surgery ◽  
Intraoperative Hypotension ◽  
Outcome Relationship ◽  
Increased Risk ◽  
Interaction Factor ◽  
Surgical Duration ◽  
Postoperative Aki

Background/Aims: Intraoperative hypotension (IOH) may be associated with surgery-related acute kidney injury (AKI). However, the duration of hypotension that triggers AKI is poorly understood. The incidence of AKI with various durations of IOH and mean arterial pressures (MAPs) was investigated. Materials: A retrospective cohort study of 4,952 patients undergoing noncardiac surgery (2011 to 2016) with MAP monitoring and a length of stay of one or more days was performed. The exclusion criteria were a preoperative estimated glomerular filtration (eGFR) ≤60 mL min–1 1.73 m2–1, a preoperative MAP less than 65 mm Hg, dialysis dependence, urologic surgery, age older than 60 years, and a surgical duration of less than 60 min. The primary exposure was IOH, and the primary outcome was AKI (50% or 0.3 mg dL–1 increase in creatinine) during the first 7 postoperative days. Multivariable logistic regression was used to model the exposure-outcome relationship. Results: AKI occurred in 186 (3.76%) noncardiac surgery patients. The adjusted odds ratio for surgery-related AKI for a MAP of less than 55 mm Hg was 14.11 (95% confidence interval: 5.02–39.69) for an exposure of more than 20 min. Age was not an interaction factor between AKI and IOH. Conclusion: There was a considerably increased risk of postoperative AKI when intraoperative MAP was less than 55 mm Hg for more than 10 min. Strict blood pressure management is recommended even for patients younger than 60 years old.

scholarly journals Intraoperative Arterial Pressure Variability and Postoperative Acute Kidney Injury

2019 ◽  
Vol 15 (1) ◽  
pp. 35-46 ◽  
Author(s):  
Sehoon Park ◽  
Hyung-Chul Lee ◽  
Chul-Woo Jung ◽  
Yunhee Choi ◽  
Hyung Jin Yoon ◽  
...  
Keyword(s):  
Arterial Pressure ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
Validation Cohort ◽  
Kidney Injury ◽  
Noncardiac Surgery ◽  
Discovery Cohort ◽  
Intraoperative Hypotension ◽  
Average Real Variability ◽  
Postoperative Aki

Background and objectivesHigh BP variability may cause AKI because of inappropriate kidney perfusion. This study aimed to investigate the association between intraoperative BP variability and postoperative AKI in patients who underwent noncardiac surgery.Design, setting, participants, & measurementsWe performed a cohort study of adults undergoing noncardiac surgery in hospitals in South Korea. We studied three cohorts using the following recording windows for intraoperative BP: discovery cohort, 1-minute intervals; first validation cohort, 5-minute intervals; and second validation cohort, 2-second intervals. We calculated four variability parameters (SD, coefficient of variation, variation independent of mean, and average real variability) based on the measured mean arterial pressure values. The primary outcomes were postoperative AKI (defined by the Kidney Disease Improving Global Outcomes serum creatinine cutoffs) and critical AKI (consisting of stage 2 or higher AKI and post-AKI death or dialysis within 90 days).ResultsIn the three cohorts, 45,520, 29,704, and 7435 patients were analyzed, each with 2230 (443 critical), 1552 (444 critical), and 300 (91 critical) postoperative AKI events, respectively. In the discovery cohort, all variability parameters were significantly associated with risk of AKI, even after adjusting for intraoperative hypotension. For example, average real variability was associated with higher risks of postoperative AKI (adjusted odds ratio, 1.13 per 1 SD increment; 95% CI, 1.07 to 1.19) and critical AKI (adjusted odds ratio, 1.13 per 1 SD increment; 95% CI, 1.02 to 1.26). Associations were evident predominantly among patients who also experienced intraoperative hypotension. In the validation analysis with 5-minute-interval BP records, all four variability parameters were associated with the risk of postoperative AKI or critical AKI. In the validation cohort with 2-second-interval BP records, average real variability was the only significant variability parameter.ConclusionsHigher intraoperative BP variability is associated with higher risks of postoperative AKI after noncardiac surgery, independent of hypotension and other clinical characteristics.

scholarly journals Preoperative Risk and the Association between Hypotension and Postoperative Acute Kidney Injury

2020 ◽  
Vol 132 (3) ◽  
pp. 461-475 ◽  
Author(s):  
Keyword(s):  
Risk Factors ◽  
Acute Kidney Injury ◽  
Mean Arterial Pressure ◽  
Arterial Pressure ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
Validation Cohort ◽  
Kidney Injury ◽  
Preoperative Risk ◽  
Intraoperative Hypotension

Abstract Background Despite the significant healthcare impact of acute kidney injury, little is known regarding prevention. Single-center data have implicated hypotension in developing postoperative acute kidney injury. The generalizability of this finding and the interaction between hypotension and baseline patient disease burden remain unknown. The authors sought to determine whether the association between intraoperative hypotension and acute kidney injury varies by preoperative risk. Methods Major noncardiac surgical procedures performed on adult patients across eight hospitals between 2008 and 2015 were reviewed. Derivation and validation cohorts were used, and cases were stratified into preoperative risk quartiles based upon comorbidities and surgical procedure. After preoperative risk stratification, associations between intraoperative hypotension and acute kidney injury were analyzed. Hypotension was defined as the lowest mean arterial pressure range achieved for more than 10 min; ranges were defined as absolute (mmHg) or relative (percentage of decrease from baseline). Results Among 138,021 cases reviewed, 12,431 (9.0%) developed postoperative acute kidney injury. Major risk factors included anemia, estimated glomerular filtration rate, surgery type, American Society of Anesthesiologists Physical Status, and expected anesthesia duration. Using such factors and others for risk stratification, patients with low baseline risk demonstrated no associations between intraoperative hypotension and acute kidney injury. Patients with medium risk demonstrated associations between severe-range intraoperative hypotension (mean arterial pressure less than 50 mmHg) and acute kidney injury (adjusted odds ratio, 2.62; 95% CI, 1.65 to 4.16 in validation cohort). In patients with the highest risk, mild hypotension ranges (mean arterial pressure 55 to 59 mmHg) were associated with acute kidney injury (adjusted odds ratio, 1.34; 95% CI, 1.16 to 1.56). Compared with absolute hypotension, relative hypotension demonstrated weak associations with acute kidney injury not replicable in the validation cohort. Conclusions Adult patients undergoing noncardiac surgery demonstrate varying associations with distinct levels of hypotension when stratified by preoperative risk factors. Specific levels of absolute hypotension, but not relative hypotension, are an important independent risk factor for acute kidney injury. Editor’s Perspective What We Already Know about This Topic What This Article Tells Us That Is New

scholarly journals Platelet Counts, Acute Kidney Injury, and Mortality after Coronary Artery Bypass Grafting Surgery

2016 ◽  
Vol 124 (2) ◽  
pp. 339-352 ◽  
Author(s):  
Miklos D. Kertai ◽  
Shan Zhou ◽  
Jörn A. Karhausen ◽  
Mary Cooter ◽  
Edmund Jooste ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Coronary Artery ◽  
Coronary Artery Bypass Grafting ◽  
Odds Ratio ◽  
Artery Bypass ◽  
Kidney Injury ◽  
Bypass Grafting ◽  
Cabg Surgery ◽  
Platelet Counts ◽  
Postoperative Aki

Abstract Background Cardiac surgery requiring cardiopulmonary bypass is associated with platelet activation. Because platelets are increasingly recognized as important effectors of ischemia and end-organ inflammatory injury, the authors explored whether postoperative nadir platelet counts are associated with acute kidney injury (AKI) and mortality after coronary artery bypass grafting (CABG) surgery. Methods The authors evaluated 4,217 adult patients who underwent CABG surgery. Postoperative nadir platelet counts were defined as the lowest in-hospital values and were used as a continuous predictor of postoperative AKI and mortality. Nadir values in the lowest 10th percentile were also used as a categorical predictor. Multivariable logistic regression and Cox proportional hazard models examined the association between postoperative platelet counts, postoperative AKI, and mortality. Results The median postoperative nadir platelet count was 121 × 109/l. The incidence of postoperative AKI was 54%, including 9.5% (215 patients) and 3.4% (76 patients) who experienced stages II and III AKI, respectively. For every 30 × 109/l decrease in platelet counts, the risk for postoperative AKI increased by 14% (adjusted odds ratio, 1.14; 95% CI, 1.09 to 1.20; P < 0.0001). Patients with platelet counts in the lowest 10th percentile were three times more likely to progress to a higher severity of postoperative AKI (adjusted proportional odds ratio, 3.04; 95% CI, 2.26 to 4.07; P < 0.0001) and had associated increased risk for mortality immediately after surgery (adjusted hazard ratio, 5.46; 95% CI, 3.79 to 7.89; P < 0.0001). Conclusion The authors found a significant association between postoperative nadir platelet counts and AKI and short-term mortality after CABG surgery.

scholarly journals Acute Kidney Injury and Bronchopulmonary Dysplasia in Premature Neonates Born Less than 32 Weeks' Gestation

2019 ◽  
Vol 37 (03) ◽  
pp. 341-348 ◽  
Author(s):  
Michelle C. Starr ◽  
Louis Boohaker ◽  
Laurie C. Eldredge ◽  
Shina Menon ◽  
Russell Griffin ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Bronchopulmonary Dysplasia ◽  
Premature Infants ◽  
Gestational Age ◽  
Odds Ratio ◽  
Retrospective Cohort ◽  
Primary Outcome ◽  
Secondary Analysis ◽  
Kidney Injury ◽  
Multiple Factors

Abstract Objective This study aimed to evaluate the association between acute kidney injury (AKI) and bronchopulmonary dysplasia (BPD) in infants born <32 weeks of gestational age (GA). Study Design Present study is a secondary analysis of premature infants born at <32 weeks of GA in the Assessment of Worldwide Acute Kidney Injury Epidemiology in Neonates (AWAKEN) retrospective cohort (n = 546). We stratified by gestational age and used logistic regression to determine association between AKI and moderate or severe BPD/mortality. Results Moderate or severe BPD occurred in 214 of 546 (39%) infants, while death occurred in 32 of 546 (6%); the composite of moderate or severe BPD/death occurred in 246 of 546 (45%). For infants born ≤29 weeks of gestation, the adjusted odds ratio (OR) of AKI and the primary outcome was 1.15 (95% confidence interval [CI] = 0.47–2.86; p = 0.76). Infants born between 29 and 32 weeks of gestation with AKI had four-fold higher odds of moderate or severe BPD/death that remained after controlling for multiple factors (adjusted OR = 4.21, 95% CI: 2.07–8.61; p < 0.001). Conclusion Neonates born between 29 and 32 weeks who develop AKI had a higher likelihood of moderate or severe BPD/death than those without AKI. Further studies are needed to validate our findings and evaluate mechanisms of multiorgan injury.

scholarly journals Association between hydroxocobalamin administration and acute kidney injury after smoke inhalation: a multicenter retrospective study

Critical Care ◽  
2019 ◽  
Vol 23 (1) ◽  
Author(s):  
François Dépret ◽  
Clément Hoffmann ◽  
Laura Daoud ◽  
Camille Thieffry ◽  
Laure Monplaisir ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Retrospective Study ◽  
Confidence Interval ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
Kidney Injury ◽  
Smoke Inhalation ◽  
Logistic Regression Models ◽  
Increased Risk ◽  
The Impact

Abstract Background The use of hydroxocobalamin has long been advocated for treating suspected cyanide poisoning after smoke inhalation. Intravenous hydroxocobalamin has however been shown to cause oxalate nephropathy in a single-center study. The impact of hydroxocobalamin on the risk of acute kidney injury (AKI) and survival after smoke inhalation in a multicenter setting remains unexplored. Methods We conducted a multicenter retrospective study in 21 intensive care units (ICUs) in France. We included patients admitted to an ICU for smoke inhalation between January 2011 and December 2017. We excluded patients discharged at home alive within 24 h of admission. We assessed the risk of AKI (primary endpoint), severe AKI, major adverse kidney (MAKE) events, and survival (secondary endpoints) after administration of hydroxocobalamin using logistic regression models. Results Among 854 patients screened, 739 patients were included. Three hundred six and 386 (55.2%) patients received hydroxocobalamin. Mortality in ICU was 32.9% (n = 243). Two hundred eighty-eight (39%) patients developed AKI, including 186 (25.2%) who developed severe AKI during the first week. Patients who received hydroxocobalamin were more severe and had higher mortality (38.1% vs 27.2%, p = 0.0022). The adjusted odds ratio (95% confidence interval) of AKI after intravenous hydroxocobalamin was 1.597 (1.055, 2.419) and 1.772 (1.137, 2.762) for severe AKI; intravenous hydroxocobalamin was not associated with survival or MAKE with an adjusted odds ratio (95% confidence interval) of 1.114 (0.691, 1.797) and 0.784 (0.456, 1.349) respectively. Conclusion Hydroxocobalamin was associated with an increased risk of AKI and severe AKI but was not associated with survival after smoke inhalation. Trial registration ClinicalTrials.gov, NCT03558646

scholarly journals Intraoperative hypotension is associated with acute kidney injury in noncardiac surgery

2018 ◽  
Vol 35 (4) ◽  
pp. 273-279 ◽  
Author(s):  
Linn Hallqvist ◽  
Fredrik Granath ◽  
Elin Huldt ◽  
Max Bell
Keyword(s):  
Acute Kidney Injury ◽  
Kidney Injury ◽  
Noncardiac Surgery ◽  
Intraoperative Hypotension

Association of Intraoperative Hypotension With Acute Kidney Injury After Elective Noncardiac Surgery

2016 ◽  
Vol 60 (3) ◽  
pp. 120-121
Author(s):  
Louise Y. Sun ◽  
Duminda N. Wijeysundera ◽  
Gordon A. Tait ◽  
W. Scott Beattie
Keyword(s):  
Acute Kidney Injury ◽  
Kidney Injury ◽  
Noncardiac Surgery ◽  
Intraoperative Hypotension

scholarly journals Circulating Proenkephalin, Acute Kidney Injury, and Its Improvement in Patients with Severe Sepsis or Shock

2018 ◽  
Vol 64 (9) ◽  
pp. 1361-1369 ◽  
Author(s):  
Pietro Caironi ◽  
Roberto Latini ◽  
Joachim Struck ◽  
Oliver Hartmann ◽  
Andreas Bergmann ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Septic Shock ◽  
Acute Kidney Injury ◽  
Renal Function ◽  
Intensive Care ◽  
Serum Creatinine ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
Kidney Injury ◽  
Baseline Serum

Abstract BACKGROUND Acute kidney injury (AKI) occurs in many critically ill patients and is associated with high mortality. We examined whether proenkephalin could predict incident AKI and its improvement in septic patients. METHODS Plasma proenkephalin A 119–159 (penKid) was assayed in 956 patients with sepsis or septic shock enrolled in the multicenter Albumin Italian Outcome Sepsis (ALBIOS) trial to test its association with incident AKI, improvement of renal function, need for renal replacement therapy (RRT), and mortality. RESULTS Median [Q1–Q3] plasma penKid concentration on day 1 [84 (20–159) pmol/L[ was correlated with serum creatinine concentration (r = 0.74); it was higher in patients with chronic renal failure and rose progressively with the renal Sequential Organ Failure Assessment subscore. It predicted incident AKI within 48 h (adjusted odds ratio, 3.3; 95% CI, 2.1–5.1; P &lt; 0.0001) or 1 week [adjusted hazard ratio, 2.1 (1.7–2.8); P &lt; 0.0001] and future RRT during the intensive care unit stay [odds ratio, 4.0 (3.0–5.4)]. PenKid was also associated with improvements in renal function in patients with baseline serum creatinine &gt;2 mg/dL, both within the next 48 h [adjusted odds ratio, 0.31 (0.18–0.54), P &lt; 0.0001] and 1 week [0.23 (0.12–0.45)]. The time course of penKid concentrations predicted AKI and 90-day mortality. CONCLUSIONS Early measurement and the trajectory of penKid predict incident AKI, improvement of renal function, and the need for RRT in the acute phase after intensive care unit admission during sepsis or septic shock. PenKid measurement may be a valuable tool to test early therapies aimed at preventing the risk of AKI in sepsis.

scholarly journals Association of intraoperative hypotension with acute kidney injury after liver resection surgery: an observational cohort study

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Pingping Liao ◽  
Shuo Zhao ◽  
Lin Lyu ◽  
Xuanlong Yi ◽  
Xiangyu Ji ◽  
...  
Keyword(s):  
Risk Factors ◽  
Acute Kidney Injury ◽  
Liver Resection ◽  
Kidney Injury ◽  
Major Complication ◽  
Exclusion Criteria ◽  
Intraoperative Hypotension ◽  
Observational Cohort ◽  
Multivariable Regression ◽  
Postoperative Aki

Abstract Background Acute kidney injury (AKI) is a major complication following liver resection. The aim of this study was to determine the risk factors for AKI after hepatic resection and whether intraoperative hypotension (IOH) was related to AKI. Methods Adult patients (≥ 18 years) undergoing liver resection between November 2017 and November 2019 at our hospital were retrospectively reviewed. AKI was defined as ≥50% increase in serum creatinine from baseline value within 48 h after surgery. IOH was defined as the lowest absolute mean arterial pressure (MAP) < 65 mmHg for more than 10 cumulative minutes during the surgery. Patients were divided into AKI group and non-AKI group, and were stratified by age ≥ 65 years. Results 796 patients who met our inclusion and exclusion criteria were analyzed. After multivariable regression analysis, the IOH (OR, 2.565; P = 0.009) and age ≥ 65 years (OR, 2.463; P = 0.008) were risk factors for AKI. The IOH (OR, 3.547; P = 0.012) and received red blood cell (OR, 3.032; P = 0.036) were risk factors of AKI in age ≥ 65 years patients. Conclusions The IOH and age ≥ 65 years were risk factors for postoperative AKI, and IOH was associated with AKI in age ≥ 65 years patients following liver resection.

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