Preoperative Prediction of Acute Kidney Injury After Cardiac Surgery

Conditions

Acute Kidney Injury

Brief summary

Although acute kidney injury (AKI) frequently complicates cardiac surgery, methods to determine AKI risk are lacking. Renal functional reserve (RFR), the capacity of the intact nephron mass to increase glomerular filtration rate (GFR), represents maximal filtration capacity. We hypothesized that preoperative RFR would predict postoperative AKI.

Detailed description

Acute kidney injury (AKI) is a frequent complication in patients undergoing cardiac surgery with an estimated prevalence of 36%. However, clinicians have limited tools to preoperatively identify patients at risk for AKI and/or progression to chronic kidney disease, particularly in patients with normal resting glomerular filtration rate (rGFR). Renal functional reserve (RFR) describes the capacity of the intact nephron mass to increase GFR from baseline in response to stimuli (e.g., protein load). We hypothesized that the presence or absence of RFR could separate patients at risk for developing AKI from patients with better-preserved renal function and a more favorable short- and long-term prognosis despite identical rGFR. The aim of this study is to examine whether preoperative assessment of RFR is able to predict risk for AKI after cardiac surgery.

Husain-Syed F, Emlet DR, Wilhelm J, Danesi TH, Ferrari F, Bezerra P, Lopez-Giacoman S, Villa G, Tello K, Birk HW, Seeger W, Giavarina D, Salvador L, Fuhrman DY, Kellum JA, Ronco C, IRRIV-AKI Study Group.

2022-05-1013 citations

10.1186/s12967-022-03410-x

Persistent decrease of renal functional reserve in patients after cardiac surgery-associated acute kidney injury despite clinical recovery.

Husain-Syed F, Ferrari F, Sharma A, Hinna Danesi T, Bezerra P, Lopez-Giacoman S, Samoni S, de Cal M, Corradi V, Virzì GM, De Rosa S, Muciño Bermejo MJ, Estremadoyro C, Villa G, Zaragoza JJ, Caprara C, Brocca A, Birk HW, Walmrath HD, Seeger W, Nalesso F, Zanella M, Brendolan A, Giavarina D, Salvador L, Bellomo R, Rosner MH, Kellum JA, Ronco C.

2019-02-0168 citations

10.1093/ndt/gfy227

Preoperative Renal Functional Reserve Predicts Risk of Acute Kidney Injury After Cardiac Operation.

Husain-Syed F, Ferrari F, Sharma A, Danesi TH, Bezerra P, Lopez-Giacoman S, Samoni S, de Cal M, Corradi V, Virzì GM, De Rosa S, Muciño Bermejo MJ, Estremadoyro C, Villa G, Zaragoza JJ, Caprara C, Brocca A, Birk HW, Walmrath HD, Seeger W, Nalesso F, Zanella M, Brendolan A, Giavarina D, Salvador L, Bellomo R, Rosner MH, Kellum JA, Ronco C.

2018-01-3183 citations

10.1016/j.athoracsur.2017.12.034

Interventions

OTHERNo intervention

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Healthy volunteers

No

Inclusion criteria

1. Subjects older than 18 years 2. Subjects undergoing elective cardiac surgery 3. Subjects who signed informed consent forms

Exclusion criteria

1. Pregnancy 2. Chronic kidney disease ≥ stage III 3. Solitary kidney 4. Diabetes mellitus type 1 5. Recent cardiac arrest 6. Liver failure or cirrhosis 7. Total parenteral nutrition 8. Hemoglobin \<11 g/dl 9. Sepsis 10. History of malabsorption, chronic inflammatory bowel disease, short bowel, or pancreatic insufficiency 11. Transplant donor or recipient 12. Active autoimmune disease with renal involvement 13. Rhabdomyolysis 14. Prostate hypertrophy with International Prostate Symptom Score ≥20 15. Neoplasm Withdrawal criteria: All patients included in the study were to be followed up until the scheduled end of the study. Data collection could be terminated prior to the scheduled time only under the following conditions: * General criteria 1. A patient or his/her legal representative may refuse further participation in the study at any time (withdrawal of consent), 2. The investigator may withdraw a patient from the participation in the study at any time for the following reasons: * a severe protocol violation, * the development of incidents/near-incidents/other severe clinical complications related to the study protocol * Criteria related to the study 1. Subjects who could not stop taking angiotensin-converting enzyme inhibitors and/or angiotensin II receptor blockers a minimum of 48 hours before the protein load. 2. Subjects who received non-steroidal anti-inflammatory drugs within the 48 hours before the protein load. 3. Subjects who received intravenous radiocontrast agents within the 72 hours before the protein load.

Design outcomes

Primary

Measure	Time frame
The predictive value of RFR for AKI in patients undergoing elective cardiac surgery	1 day before cardiac surgery

Secondary

Measure	Time frame
Whether the occurrence of AKI (as defined by Kidney Disease Improving Global Outcomes criteria) impacts RFR three months after surgery in patients without ongoing reduced function defined by resting GFR	3 months after cardiac surgery
Whether urinary [TIMP-2][IGFBP7] predicts loss of RFR	3 months after cardiac surgery

Outcome results

None listed