PMID- 37476296 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230722 IS - 2168-8184 (Print) IS - 2168-8184 (Electronic) IS - 2168-8184 (Linking) VI - 15 IP - 7 DP - 2023 Jul TI - Bicarbonate-Based Solution for the Management of Established Acute Kidney Injury: A Pilot Open-Label Observation Study. PG - e42127 LID - 10.7759/cureus.42127 [doi] LID - e42127 AB - Background Administration of intravenous (IV) solutions constitutes a key component of acute kidney injury (AKI) management. However, the optimal IV fluid solution in the setting of AKI remains uncertain. In this study, we assessed whether the use of bicarbonate-containing solution in patients with established AKI is associated with early renal recovery as compared to bicarbonate-free solutions. Methods We performed an open-label observational pilot study in 59 patients with established AKI. IV fluid solutions that were used include bicarbonate-based solution with low chloride content (80 mEq/L of 8% sodium bicarbonate in a solution that contains 77 mEq/L of sodium, 77 mEq/L of chloride and 25 g/L of glucose) or solutions without bicarbonate with high chloride content (0.9% normal saline, 0.45% half-saline, normal ringer, or 4% succinylated gelatine). We evaluated the association of IV fluids type with renal recovery. Results The median age of study participants was 66 years (inter-quartile range (IQR) 37-85), and 59% (n=35) were men. The prevalence of diabetes and chronic kidney disease (CKD) stages 1-3 were 34% (n=20) and 39% (n=23), respectively. Patients who received bicarbonate-based IV solutions had a greater reduction of serum creatinine (sCr) per day (delta sCr) as compared with patients who received bicarbonate-free solutions (-0.29+/-0.47 vs. 0.07+/-0.42; p=0.007). The renal recovery was faster in patients who received bicarbonate-based solutions as compared to the bicarbonate-free group (days from peak sCr to baseline sCr: 5.6+/-2.1 vs. 7.6+/-2.8; p < 0.001, respectively). Conclusions We observed faster renal recovery in patients with established AKI who received the bicarbonate-based solution with low chloride content. Our study findings require confirmation in larger cohorts. CI - Copyright (c) 2023, Claure-Del Granado et al. FAU - Claure-Del Granado, Rolando AU - Claure-Del Granado R AD - Division of Nephrology, Department of Medicine, Hospital Obrero No. 2 - Caja Nacional de Salud (CNS) Universidad Mayor de San Simon, Cochabamba, BOL. FAU - Prudencio-Ribera, Vania C AU - Prudencio-Ribera VC AD - Pulmonology, University Hospital of Toledo, Toledo, ESP. FAU - Gupta, Vineet AU - Gupta V AD - Medicine/Hospital Medicine, University of California San Diego School of Medicine, San Diego, USA. FAU - Yang, Jason AU - Yang J AD - Medicine, University of California San Diego School of Medicine, San Diego, USA. FAU - Kashani, Kianoush AU - Kashani K AD - Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, USA. AD - Nephrology and Hypertension, Mayo Clinic, Rochester, USA. FAU - Malhotra, Rakesh AU - Malhotra R AD - Division of Nephrology and Hypertension, Department of Medicine, University of California San Diego School of Medicine, San Diego, USA. LA - eng PT - Journal Article DEP - 20230719 PL - United States TA - Cureus JT - Cureus JID - 101596737 PMC - PMC10355685 OTO - NOTNLM OT - acidosis OT - acute kidney injury OT - bicarbonate-based solutions OT - bicarbonate-free solutions OT - chloride-rich OT - intravenous fluids OT - normal saline COIS- The authors have declared that no competing interests exist. EDAT- 2023/07/21 06:44 MHDA- 2023/07/21 06:45 PMCR- 2023/07/19 CRDT- 2023/07/21 04:03 PHST- 2023/07/18 00:00 [accepted] PHST- 2023/07/21 06:45 [medline] PHST- 2023/07/21 06:44 [pubmed] PHST- 2023/07/21 04:03 [entrez] PHST- 2023/07/19 00:00 [pmc-release] AID - 10.7759/cureus.42127 [doi] PST - epublish SO - Cureus. 2023 Jul 19;15(7):e42127. doi: 10.7759/cureus.42127. eCollection 2023 Jul.