Please use this identifier to cite or link to this item: https://ahro.austin.org.au/austinjspui/handle/1/35063
Title: A Pilot Study of Renin-Guided Angiotensin-II Infusion to Reduce Kidney Stress After Cardiac Surgery.
Austin Authors: Sadjadi, Mahan;von Groote, Thilo;Weiss, Raphael;Strauß, Christian;Wempe, Carola;Albert, Felix;Langenkämper, Marie;Landoni, Giovanni;Bellomo, Rinaldo ;Khanna, Ashish K;Coulson, Tim G ;Meersch, Melanie;Zarbock, Alexander
Affiliation: From the Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany.
Intensive Care
Institute of Biostatistics and Clinical Research, University of Münster, Münster, Germany.
Department of Intensive Care and Anesthesia, IRCCS San Raffaele Scientific Institute, Milan, Italy.;Department of Anesthesia and Intensive Care, School of Medicine, Vita-Salute San Raffaele University, Milan, Italy.
Department of Critical Care, The University of Melbourne, Melbourne, Australia.;Australian and New Zealand Intensive Care Research Centre, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
Department of Anesthesiology, Section on Critical Care Medicine, School of Medicine, Wake Forest University, Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, North Carolina.;Outcomes Research Consortium, Cleveland, Ohio.;Perioperative Outcomes and Informatics Collaborative (POIC), Winston-Salem, North Carolina; and.
Department of Anesthesiology and Perioperative Medicine, The Alfred Hospital, Melbourne, Victoria, Australia; Department of Critical Care, University of Melbourne, Melbourne, Victoria, Australia.
Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany.
Issue Date: 30-Jan-2024
Date: 2024
Publication information: Anesthesia and Analgesia 2024-01-30
Abstract: Vasoplegia is common after cardiac surgery, is associated with hyperreninemia, and can lead to acute kidney stress. We aimed to conduct a pilot study to test the hypothesis that, in vasoplegic cardiac surgery patients, angiotensin-II (AT-II) may not increase kidney stress (measured by [TIMP-2]*[IGFBP7]). We randomly assigned patients with vasoplegia (cardiac index [CI] > 2.1l/min, postoperative hypotension requiring vasopressors) and Δ-renin (4-hour postoperative-preoperative value) ≥3.7 µU/mL, to AT-II or placebo targeting a mean arterial pressure ≥65 mm Hg for 12 hours. The primary end point was the incidence of kidney stress defined as the difference between baseline and 12 hours [TIMP-2]*[IGFBP7] levels. Secondary end points included serious adverse events (SAEs). We randomized 64 patients. With 1 being excluded, 31 patients received AT-II, and 32 received placebo. No significant difference was observed between AT-II and placebo groups for kidney stress (Δ-[TIMP-2]*[IGFBP7] 0.06 [ng/mL]2/1000 [Q1-Q3, -0.24 to 0.28] vs -0.08 [ng/mL]2/1000 [Q1-Q3, -0.35 to 0.14]; P = .19; Hodges-Lehmann estimation of the location shift of 0.12 [ng/mL]2/1000 [95% confidence interval, CI, -0.1 to 0.36]). AT-II patients received less fluid during treatment than placebo patients (2946 vs 3341 mL, P = .03), and required lower doses of norepinephrine equivalent (0.19 mg vs 4.18mg, P < .001). SAEs were reported in 38.7% of patients in the AT-II group and in 46.9% of patients in the placebo group. The infusion of AT-II for 12 hours appears feasible and did not lead to an increase in kidney stress in a high-risk cohort of cardiac surgery patients. These findings support the cautious continued investigation of AT-II as a vasopressor in hyperreninemic cardiac surgery patients.
URI: https://ahro.austin.org.au/austinjspui/handle/1/35063
DOI: 10.1213/ANE.0000000000006839
ORCID: 
Journal: Anesthesia and Analgesia
PubMed URL: 38289858
ISSN: 1526-7598
Type: Journal Article
Appears in Collections:Journal articles

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