Perioperative Anaemia is a Risk Factor of Acute Kidney Injury in Patients Undergoing Partial Nephrectomy

Abstract Background Acute kidney injury (AKI) secondary to partial nephrectomy (PN) is a challenging clinical issue. During PN anaemia develops due to haemodilution and blood loss, which decreases oxygen transfer and provokes tissue hypoxia, leading to postoperative adverse outcomes. The aim of this study was to investigate the impact of perioperative anaemia on postoperative AKI after PN.Methods This retrospective cohort study included 68 adult patients undergoing PN for a single nonmetastatic renal tumor. Detailed clinical information was systematically reviewed and analyzed. Serum concentrations of neutrophil gelatinase-associated lipocalin (NGAL) and creatinine (sCr) were tested before, 2 hours and 1 day after PN surgery. Perioperative anaemia was assessed according to haematocrit (Ht) value at the same timepoint. Association between perioperative anaemia and postoperative AKI were explored by logistic regression analyses and pearson correlation analysis. Results The rate of perioperative anaemia in patients undergoing PN was 35.3% when the criteria of Ht < 30% was adopted. AKI developed in 32.4% of the patients when KDIGO criteria was applicated and in 51.5% of the patients when the criteria of serum NGAL >150 ng/mL was used. The incidence of AKI in patients with perioperative anaemia was higher than that in patients without anaemia. Univariate logistic regression analyses showed perioperative anaemia was a relevant factor of postoperative AKI in patients undergoing PN.Conclusions Perioperative anaemia might be a risk factor of postoperative AKI after PN. But the detailed interrelation still needs to be verified by large-scale prospective studies.

Download Full-text

The Impact of Propofol- and Inhalant-Based Anesthesia on Acute Kidney Injury After Major Abdominal Surgery: A Retrospective Observational Study

10.21203/rs.3.rs-39585/v1 ◽

2020 ◽

Author(s):

Bo Rim Kim ◽

Susie Yoon ◽

Gyu Young Song ◽

Seohee Lee ◽

Jae-Hyon Bahk ◽

...

Keyword(s):

Acute Kidney Injury ◽

Logistic Regression ◽

Propensity Score ◽

Abdominal Surgery ◽

Kidney Injury ◽

Major Abdominal Surgery ◽

Regression Analyses ◽

Inverse Probability ◽

The Impact ◽

Postoperative Aki

Abstract Background: The optimal anesthetic for preventing postoperative acute kidney injury (AKI) remains unclear, and few studies on this topic have been conducted in the context of non-cardiac surgery. The purpose of this retrospective study was to compare propofol- and inhalant-based anesthesia in terms of the risk of AKI after open major abdominal surgery (MAS).Methods: Adult patients who underwent open MAS (gastrectomy, hepatectomy, colectomy, or pancreatectomy) at our institute from January 2016 to December 2018 were included. Using multivariable logistic regression, the risk of postoperative AKI was compared between patients who underwent propofol-based anesthesia (propofol group) and those who received inhalant-based anesthesia (inhalant group). Additional logistic regression analyses were performed after propensity score matching and inverse probability of treatment weighting (IPTW).Results: In total, 3,616 patients were analyzed. The incidence of postoperative AKI was 5.0% (77/1546) and 7.8% (161/2070) in the propofol and inhalant groups, respectively. The risk of AKI was significantly higher in the inhalant group (adjusted odds ratio [aOR], 1.69; 95% confidence interval [CI], 1.23–2.30; P= 0.001) than the propofol group. In the propensity score-matched cohort, the inhalant group had a higher risk of AKI than the propofol group (aOR, 1.68; 95% CI, 1.21–2.34; P= 0.002), and the logistic regression with IPTW showed similar results (OR, 1.74; 95% CI 1.14–1.66; P< 0.001).Conclusion: The risk of AKI after open MAS may differ significantly according to the anesthetic used. Patients receiving inhalant-based anesthesia may have a greater risk of postoperative AKI than those anaesthetized with propofol.

Download Full-text

Renin–angiotensin system blocker use and the risk of acute kidney injury after colorectal cancer surgery: a population-based cohort study

BMJ Open ◽

10.1136/bmjopen-2019-032964 ◽

2019 ◽

Vol 9 (11) ◽

pp. e032964

Author(s):

Charlotte Slagelse ◽

H Gammelager ◽

Lene Hjerrild Iversen ◽

Kathleen D Liu ◽

Henrik T Toft Sørensen ◽

...

Keyword(s):

Colorectal Cancer ◽

Acute Kidney Injury ◽

Cohort Study ◽

Angiotensin Receptor Blockers ◽

Kidney Injury ◽

Population Based ◽

Adjusted Risk ◽

Increased Risk ◽

The Impact ◽

Postoperative Aki

ObjectivesIt is unknown whether preoperative use of ACE inhibitors (ACE-I) or angiotensin receptor blockers (ARBs) affects the risk of acute kidney injury (AKI) after colorectal cancer (CRC) surgery. We assessed the impact of preoperative ACE-I/ARB use on risk of AKI after CRC surgery.DesignObservational cohort study. Patients were divided into three exposure groups—current, former and non-users—through reimbursed prescriptions within 365 days before the surgery. AKI within 7 days after surgery was defined according to the current Kidney Disease Improving Global Outcome consensus criteria.SettingPopulation-based Danish medical databases.ParticipantsA total of 9932 patients undergoing incident CRC surgery during 2005–2014 in northern Denmark were included through the Danish Colorectal Cancer Group Database.Outcome measureWe computed cumulative incidence proportions (risk) of AKI with 95% CIs for current, former and non-users of ACE-I/ARB, including death as a competing risk. We compared current and former users with non-users by computing adjusted risk ratios (aRRs) using log-binomial regression adjusted for demographics, comorbidities and CRC-related characteristics. We stratified the analyses of ACE-I/ARB users to address any difference in impact within relevant subgroups.ResultsTwenty-one per cent were ACE-I/ARB current users, 6.4% former users and 72.3% non-users. The 7-day postoperative AKI risk for current, former and non-users was 26.4% (95% CI 24.6% to 28.3%), 25.2% (21.9% to 28.6%) and 17.8% (17.0% to 18.7%), respectively. The aRRs of AKI were 1.20 (1.09 to 1.32) and 1.16 (1.01 to 1.34) for current and former users, compared with non-users. The relative risk of AKI in current compared with non-users was consistent in all subgroups, except for higher aRR in patients with a history of hypertension.ConclusionsBeing a current or former user of ACE-I/ARBs is associated with an increased risk of postoperative AKI compared with non-users. Although it may not be a drug effect, users of ACE-I/ARBs should be considered a risk group for postoperative AKI.

Download Full-text

Development and external validation of an acute kidney injury risk score for use in the general population

Clinical Kidney Journal ◽

10.1093/ckj/sfaa072 ◽

2020 ◽

Vol 13 (3) ◽

pp. 402-412

Author(s):

Samira Bell ◽

Matthew T James ◽

Chris K T Farmer ◽

Zhi Tan ◽

Nicosha de Souza ◽

...

Keyword(s):

Acute Kidney Injury ◽

Logistic Regression ◽

Risk Score ◽

Validation Cohort ◽

External Validation ◽

Kidney Injury ◽

Routinely Collected Data ◽

C Statistic ◽

Increased Risk ◽

The Impact

Abstract Background Improving recognition of patients at increased risk of acute kidney injury (AKI) in the community may facilitate earlier detection and implementation of proactive prevention measures that mitigate the impact of AKI. The aim of this study was to develop and externally validate a practical risk score to predict the risk of AKI in either hospital or community settings using routinely collected data. Methods Routinely collected linked datasets from Tayside, Scotland, were used to develop the risk score and datasets from Kent in the UK and Alberta in Canada were used to externally validate it. AKI was defined using the Kidney Disease: Improving Global Outcomes serum creatinine–based criteria. Multivariable logistic regression analysis was performed with occurrence of AKI within 1 year as the dependent variable. Model performance was determined by assessing discrimination (C-statistic) and calibration. Results The risk score was developed in 273 450 patients from the Tayside region of Scotland and externally validated into two populations: 218 091 individuals from Kent, UK and 1 173 607 individuals from Alberta, Canada. Four variables were independent predictors for AKI by logistic regression: older age, lower baseline estimated glomerular filtration rate, diabetes and heart failure. A risk score including these four variables had good predictive performance, with a C-statistic of 0.80 [95% confidence interval (CI) 0.80–0.81] in the development cohort and 0.71 (95% CI 0.70–0.72) in the Kent, UK external validation cohort and 0.76 (95% CI 0.75–0.76) in the Canadian validation cohort. Conclusion We have devised and externally validated a simple risk score from routinely collected data that can aid both primary and secondary care physicians in identifying patients at high risk of AKI.

Download Full-text

RA03.02: ACUTE KIDNEY INJURY AFTER ESOPHAGEAL CANCER SURGERY: INCIDENCE, RISK FACTORS, AND IMPACT ON ONCOLOGIC OUTCOMES

Diseases of the Esophagus ◽

10.1093/dote/doy089.ra03.02 ◽

2018 ◽

Vol 31 (Supplement_1) ◽

pp. 23-23 ◽

Cited By ~ 1

Author(s):

Conor Murphy ◽

Talulla Dunne ◽

Jessie Elliott ◽

Sinead King ◽

Narayanasamy Ravi ◽

...

Keyword(s):

Risk Factors ◽

Acute Kidney Injury ◽

Esophageal Cancer ◽

Logistic Regression ◽

Kidney Injury ◽

Cancer Surgery ◽

Transthoracic Approach ◽

Operative Trauma ◽

Esophageal Cancer Surgery ◽

Postoperative Aki

Abstract Background Surgery remains the cornerstone of treatment for esophageal cancer. Esophagectomy serves as an exemplar of major operative trauma, yet there is a paucity of literature regarding postoperative renal outcomes. We aimed to study the incidence of acute kidney injury (AKI) after esophageal cancer surgery, and to determine independent risk factors for postoperative renal impairment. Methods Consecutive patients undergoing potentially curative surgery for esophageal cancer from 2006–2016 were studied. AKI was defined according to AKIN criteria. Complications were recorded prospectively and comprehensive complications index (CCI) was determined. Multivariate linear and logistic regression were performed to determine factors independently predictive of postoperative AKI. Results 661 patients (72.9% male), a mean age of 63.5 ± 9.7 years, underwent surgery (2-stage esophagectomy, 307 [46.4%]; 3-stage esophagectomy, 117 [17.7%]; transhiatal esophagectomy, 112 [16.9%]; extended total gastrectomy, 122 [18.5%)], pharyngolaryngoesophagectomy, 3 [0.5%]), with a CCI of 21.3 ± 19.7 and an in-hospital mortality of 1.4%. Baseline prevalence of chronic kidney disease was 1.8%. Postoperative AKI occurred in 174 (26.3%) patients, with AKIN 1, 2 and 3 in 122 (18.5%), 41 (6.2%) and 11 (1.7%), respectively. Of these, 5 (2.9%) required renal replacement therapy during admission. Preoperatively, greater BMI (P = 0.02, OR 1.05 [95% CI 1.01–1.10]), male sex (P = 0.05, OR 1.68 [1.01–2.78]), age (P = 0.001, OR 1.04 [1.02–1.07]), hypertension (P = 0.005, OR 1.85 [1.20–2.84]), and transthoracic approach (P = 0.01, OR 1.82 [1.14–2.89]) independently predicted postoperative AKI. After surgery, while CCI was predictive of AKI on univariable analysis (P < 0.001 OR 1.03 [1.02–1.04]), atrial fibrillation (P = 0.001 OR 3.25 [1.57–6.72]) and prolonged intubation (P = 0.016 OR 3.61 [1.28–10.21]) were independently associated with AKI on multivariable logistic regression. On multivariable linear regression, neoadjuvant treatment (surgery only, 13.5 ± 35.8%; chemotherapy, 25.3 ± 42.2%; chemoradiation 18.7 ± 31.9%, P = 0.02), transthoracic approach (P = 0.006), and baseline BMI (P = 0.02) predicted postoperative %Δcreatinine. Postoperative AKI did not impact survival outcome on univariable or multivariable analysis. Conclusion Major AKI is rare after esophageal cancer surgery, with risk independently associated with increasing age, features of the metabolic syndrome, and postoperative morbidity. Disclosure All authors have declared no conflicts of interest.

Download Full-text

Effect of Diabetes Mellitus on Acute Kidney Injury after Minimally Invasive Partial Nephrectomy: A Case-Matched Retrospective Analysis

Journal of Clinical Medicine ◽

10.3390/jcm8040468 ◽

2019 ◽

Vol 8 (4) ◽

pp. 468 ◽

Cited By ~ 6

Author(s):

Na Young Kim ◽

Jung Hwa Hong ◽

Dong Hoon Koh ◽

Jongsoo Lee ◽

Hoon Jae Nam ◽

...

Keyword(s):

Diabetes Mellitus ◽

Acute Kidney Injury ◽

Propensity Score ◽

Minimally Invasive ◽

Propensity Score Matching ◽

Partial Nephrectomy ◽

Kidney Injury ◽

Invasive Technique ◽

Male Sex ◽

Postoperative Aki

Postoperative acute kidney injury (AKI) is still a concern in partial nephrectomy (PN), even with the development of minimally invasive technique. We aimed to compare AKI incidence between patients with and without diabetes mellitus (DM) and to determine the predictive factors for postoperative AKI. This case-matched retrospective study included 884 patients with preoperative creatinine levels ≤1.4 mg/dL who underwent laparoscopic or robot-assisted laparoscopic PN between December 2005 and May 2018. Propensity score matching was employed to match patients with and without DM in a 1:3 ratio (101 and 303 patients, respectively). Of 884 patients, 20.4% had postoperative AKI. After propensity score matching, the incidence of postoperative AKI in DM and non-DM patients was 30.7% and 14.9%, respectively (P < 0.001). In multivariate analysis, male sex and warm ischemia time (WIT) >25 min were significantly associated with postoperative AKI in patients with and without DM. In patients with DM, hemoglobin A1c (HbA1c) >7% was a predictive factor for AKI, odds ratio (OR) = 4.59 (95% CI, 1.47–14.36). In conclusion, DM increased the risk of AKI after minimally invasive PN; male sex, longer WIT, and elevated HbA1c were independent risk factors for AKI in patients with DM.

Download Full-text

The impact of comorbidities, sex and age on the occurrence of acute kidney injury among patients undergoing nephron-sparing surgery

Therapeutic Advances in Urology ◽

10.1177/1756287217747190 ◽

2018 ◽

Vol 10 (3) ◽

pp. 103-108 ◽

Cited By ~ 2

Author(s):

Elias Hellou ◽

Zaher Bahouth ◽

Edmond Sabo ◽

Zaid Abassi ◽

Ofer Nativ

Keyword(s):

Acute Kidney Injury ◽

Kidney Cancer ◽

Univariate Analysis ◽

Kidney Injury ◽

Nephron Sparing Surgery ◽

Average Decrease ◽

Nephron Sparing ◽

Data Definition ◽

The Impact ◽

Postoperative Aki

Background: The aim of this study was to report the impact of patients’ baseline characteristics on the incidence of acute kidney injury (AKI) after nephron-sparing surgery (NSS) for localized kidney cancer. Patients and methods: Data from our kidney cancer database were retrospectively extracted to include 402 patients who underwent NSS between March 2000 and June 2016, and had sufficient data. Definition of AKI was based on the postoperative serum creatinine levels and estimated glomerular filtration rate (eGFR) magnitude, which were measured during the 72 h after surgery. Results: Based on RIFLE and AKIN criteria, the overall rate of postoperative AKI was 35%. The average decrease in eGFR among patients who developed AKI was 20% as compared with the non-AKI subgroup (2%). In univariate analysis, variables that were associated with AKI included right-sided tumors ( p = 0.014), male sex ( p = 0.01), hypertension ( p = 0.003), baseline eGFR ( p = 0.009) and history of nephrolithiasis ( p = 0.039). However, multivariate analysis revealed that the only independent predictors of postoperative AKI were hypertension ( p = 0.009) and cigarette smoking ( p = 0.024). Conclusion: AKI is a common complication of NSS affecting about one-third of the patients. The most important risk factors are hypertension and smoking.

Download Full-text

Prognostic value of suPAR and hsCRP on acute kidney injury after cardiac surgery

BMC Nephrology ◽

10.1186/s12882-021-02322-0 ◽

2021 ◽

Vol 22 (1) ◽

Author(s):

Sebastian Roed Rasmussen ◽

Rikke Vibeke Nielsen ◽

Rasmus Møgelvang ◽

Sisse Rye Ostrowski ◽

Hanne Berg Ravn

Keyword(s):

Acute Kidney Injury ◽

Logistic Regression ◽

Cardiac Surgery ◽

Kidney Injury ◽

High Sensitivity ◽

Reactive Protein ◽

Type Plasminogen Activator ◽

Urokinase Type Plasminogen Activator ◽

Adjusted Logistic Regression ◽

Postoperative Aki

Abstract Background Acute kidney injury (AKI) represents a serious complication following cardiac surgery. Adverse outcome after cardiac surgery has been observed in the presence of elevated levels of soluble urokinase-type plasminogen activator receptor (suPAR) and high-sensitivity C-Reactive Protein (hsCRP). The aim of study was (i) to investigate the relationship between preoperative elevated levels of suPAR and hsCRP and postoperative AKI in unselected cardiac surgery patients and (ii) to assess whether the concentration of the biomarkers reflected severity of AKI. Methods In a retrospective observational study, biobank blood plasma samples (n = 924) from patients admitted for elective on-pump cardiac surgery were analysed for suPAR and hsCRP levels. The relation between suPAR and hsCRP-values and AKI (any stage), defined by the KDIGO (Kidney Disease: Improving Global Outcomes) criteria, was assessed using adjusted logistic regression. Further, the association between biomarkers and severity (KDIGO 1, KDIGO 2–3 and renal replacement therapy (RRT)) was assessed using adjusted logistic regression. Results Postoperative AKI (any stage) was observed in 327 patients (35.4 %). A doubling of preoperative suPAR corresponded to an adjusted odds ratio (OR) for postoperative AKI (any stage) of 1.62 (95 % CI 1.26–2.09, p < 0.001). Furthermore, a doubling of suPAR had an adjusted OR of 1.50 (95 % CI 1.16–1.93, p = 0.002), 2.44 (95 % CI 1.56–3.82, p < 0.001) and 1.92 (95 % CI 1.15–3.23, p = 0.002), for KDIGO 1, KDIGO 2–3 and need for RRT, respectively. No significant association was found between elevated levels of hsCRP and any degree of AKI. Conclusions Increasing levels of suPAR, but not hsCRP, were associated with development and severity of AKI following on-pump cardiac surgery.

Download Full-text

Early Diabetes Aggravates Renal Ischemia/reperfusion-induced Acute Kidney Injury

10.21203/rs.3.rs-145880/v1 ◽

2021 ◽

Author(s):

Mariana de Ponte ◽

Vanessa Cardoso ◽

Juliana Costa-Pessoa ◽

Maria Oliveira-Souza

Keyword(s):

Acute Kidney Injury ◽

Risk Factor ◽

Mrna Expression ◽

Ischemia Reperfusion ◽

Kidney Tissue ◽

Kidney Injury ◽

Plasma Creatinine ◽

Ki 67 ◽

Early Diabetes ◽

The Impact

Abstract Acute kidney injury (AKI) due to ischemia and reperfusion (IR) can be associated with the progression of chronic kidney injury. In addition, studies suggest that chronic diabetes is an independent risk factor for AKI; however, the impact of early diabetes on the severity of AKI remains unknown. We investigated the effects of early diabetes on the pathophysiology of renal IR-induced AKI. C57BL/6J mice were randomly assigned into the following groups: 1) sham-operated; 2) renal IR; 3) streptozotocin (STZ - 55 mg/kg/day) and sham-operated; and 4) STZ and renal IR. On the 12th day after treatments, the animals were subjected to bilateral IR for 30 minutes followed by reperfusion for 48 hours, and the mice were euthanized by exsanguination. Renal function was assessed by analyzing the plasma creatinine and urea concentrations with biochemical methods. Proteinuria was evaluated using a commercial kit. Kidney tissue was used to evaluate the morphology, gene expression by qPCR, and protein expression by Western blotting. Compared to the sham operated, renal IR resulted in increased plasma creatinine and urea levels, decreased nephrin mRNA expression, increased tubular cast formation, and Kim-1, Ki-67, pro-inflammatory and pro-fibrotic factor mRNA expression. Compared with the sham treatment, STZ treatment resulted in hyperglycemia, but did not induce changes in kidney function or pro-inflammatory or pro-fibrotic factors. However, STZ treatment aggravated renal IR-induced AKI by exacerbating glomerular and tubular injury, inflammation, and the profibrotic response. Early diabetes constitutes a relevant risk factor for renal IR-induced AKI.

Download Full-text

Preoperative hypoalbuminemia was associated with acute kidney injury in high-risk patients following non-cardiac surgery: a retrospective cohort study

10.21203/rs.2.9275/v2 ◽

2019 ◽

Author(s):

Nan Li ◽

Hong Qiao ◽

Jing-Fei Guo ◽

Hong-Yun Yang ◽

Xue-Ying Li ◽

...

Keyword(s):

Acute Kidney Injury ◽

Logistic Regression ◽

Cardiac Surgery ◽

Serum Albumin ◽

Multivariate Logistic Regression Analysis ◽

Kidney Injury ◽

Albumin Concentration ◽

Multivariate Logistic Regression ◽

Preoperative Serum ◽

Postoperative Aki

Abstract Background: Acute kidney injury (AKI) is a common complication following non-cardiac surgery with adverse short- and long- term morbidity and mortality. Evidence shows that hypoalbuminemia is associated with increased AKI risk in patients with infectious diseases and cancer and following cardiac surgery and transplant surgery. However, little evidence is available on non-cardiac surgery population. Thus, we investigated the association between preoperative hypoalbuminemia and AKI following non-cardiac surgery. Methods: We retrospectively assessed perioperative risk factors and preoperative serum albumin concentration in 729 consecutive adult patients who underwent non-cardiac surgery from July 1, 2017, to June 30, 2018. Each patient was categorized according to maximal Kidney Disease Improving Global Outcomes criteria based on creatinine changes and urine output within the first week after surgery. Multivariate Logistic regression models were used to analyze the association between preoperative hypoalbuminemia and postoperative AKI. Results: Of 729 patients, 188 (25.8%) developed AKI. AKI incidence was higher in patients with preoperative serum albumin <37.5 g/L than in those with preoperative serum albumin ≥37.5 g/L [35.9% (98/273) vs. 19.7% (90/456), P<0.001]. Multivariate logistic regression analysis showed that preoperative serum albumin <37.5 g/L (odds ratio 1.892; 95% confidence interval 1.238-2.891; P=0.003) was independently associated with postoperative AKI. Patients with preoperative serum albumin <37.5 g/L tended to have a higher but not significant ratio in AKI stage 2 (2.6% vs 1.1%, P=0.144) and much higher ratio in AKI stage 3 (4.8% vs 0.7%, P<0.001) than those with preoperative serum albumin ≥37.5 g/L. AKI patients had a higher in-hospital mortality rate [6.9% (13/188) vs. 0.2% (1/541), P<0.001]. Kaplan-Meier analysis revealed that the cumulative survival rate decreased with increasing AKI severity (P<0.001). Postoperative AKI was also associated with other worse outcomes, such as prolonged mechanical ventilation [53.4 (33.0, 73.8) vs 14.7 (11.1, 18.3) hours, P<0.001], intensive care unit stay [4.0 (3.1, 4.9) vs 2.0 (1.8, 2.3) days, P<0.001], postoperative hospital stay [17.8 (14.8, 20.9) vs 12.3 (11.3, 13.3) days, P<0.001], and higher total cost [13,453 (8,538, 20,228) vs 11,306 (6,277, 16,400) dollars, P<0.001]. Conclusions: Preoperative hypoalbuminemia was independently associated with AKI after non-cardiac surgery, and postoperative AKI was associated with poor outcomes.

Download Full-text

P1581Early blood pressure reduction by intravenous vasodilators associates with acute kidney injury in patients with hypertensive acute decompensated heart failure

European Heart Journal ◽

10.1093/eurheartj/ehz748.0341 ◽

2019 ◽

Vol 40 (Supplement_1) ◽

Author(s):

Y Arao ◽

A Sawamura ◽

M Nakatochi ◽

H Oishi ◽

H Kato ◽

...

Keyword(s):

Heart Failure ◽

Blood Pressure ◽

Acute Kidney Injury ◽

Logistic Regression ◽

Serum Creatinine ◽

Acute Decompensated Heart Failure ◽

Blood Pressure Reduction ◽

Kidney Injury ◽

Decompensated Heart Failure ◽

Regression Analyses

Abstract Background In patients with hypertensive acute decompensated heart failure (ADHF), intravenous vasodilators are commonly used. However, little is known about optimal use in blood pressure (BP) management to avoid acute kidney injury (AKI). Purpose To investigate the association between systolic BP (SBP) changes in first 6 h and incidence of AKI within 48 h in patients with hypertensive ADHF. Methods Post-hoc analysis was performed on a prospectively enrolled cohort. We investigated 245 patients with ADHF and SBP >140 mmHg on arrival (mean age, 76 years; 40% female). We defined “SBP-fall” as maximum percent reduction in SBP 6h after intravenous treatment. AKI was defined as serum creatinine (SCr) ≥0.3 mg/dL, or urine output <0.5 mL/kg/h at 48 h. Results Mean SBP, SBP-fall and SCr level at arrival were 180 mmHg, 29.4%, and 1.21 mg/dL, respectively. Sixty-six patients experienced AKI. There were no significant differences in age, NYHA functional class, SBP and SCr at admission between AKI and Non-AKI group. AKI group had the greater SBP-fall compared with Non-AKI (36.7%versus 27.2%, p≤0.0001). Logistic regression analyses revealed that SBP-fall had an independent predictor of AKI (Table). In addition, SBP-fall had positive association with the number of concomitant used intravenous vasodilators in first 6 h (Figure). Logistic regression analyses for AKI Univariate Multivariate AUC OR 95% CI P OR 95% CI P Ages, years, per 10 years 1.04 0.82–1.33 0.17 0.75 SBP at arrival, per 10 mmHg 1.01 0.93–1.11 0.77 SBP-fall, per 10% 1.49 1.22–1.81 <0.001 1.54 1.24–1.91 <0.001 HR, per 10 beat/min 1.12 1.00–1.25 0.049 1.07 0.95–1.21 0.28 COPD 2.95 1.06–8.21 0.04 3.06 0.99–9.43 0.054 SCr, per 1 mg/dL 1.40 0.83–2.37 0.21 Furosemide i.v. 1.12 0.42–2.95 0.82 Carperitide 3.22 1.69–6.13 0.0002 4.39 2.16–8.93 <0.001 NTG/ISDN i.v. 0.97 0.54–1.74 0.92 CCB i.v. 1.86 0.76–4.53 0.18 OR, odds ratio; CI, confidence interval; AUC, area under the curve; SBP, systolic blood pressure; COPD, chronic obstructive pulmonary disease; SCr, serum creatinine; i.v., intravenous; NTG, nitroglycerin; ISDN, isosorbide dinitrate; CCB, calcium channel blocker. SBP-fall odds ration for AKI Conclusion In the first 6h of management for hypertensive ADHF patients, aggressive SBP reduction by the combination use of vasodilator agents predicted the incidence of AKI.

Download Full-text