Trial reportCritical care (London, England)2018
Early versus standard initiation of renal replacement therapy in furosemide stress test non-responsive acute kidney injury patients (the FST trial).
Trial report in Critical care (London, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 72 papers, 15 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Does Early Initiation of Renal Replacement Therapy Have an Impact on 7-day Fluid Balance in Critically Ill Patients With Acute Kidney Injury With Positive Furosemide Stress Test?: a Multicenter Randomized Controlled Trial
Effect of a Furosemide Stress Test-Guided Strategy on Liberation From Continuous Renal Replacement Therapy in Critically Ill Patients With Acute Kidney Injury (FST-LIBERATE)
Who cites it
72 citing papers in PubMed, 15 syntheses or guidelines pooled it, 166 citations in OpenAlex.
- Pooled it
- Observational studies of early versus late salvage therapies in critical care exhibit intrinsic selection bias: two meta-analyses.Critical care (London, England) · 2025Pooled it
- Sex and gender considerations in randomized controlled trials in critical care nephrology: a meta-epidemiologic study.BMC medicine · 2025Pooled it
- Diuretics for preventing and treating acute kidney injury.The Cochrane database of systematic reviews · 2025Pooled it
- Pooled it
- Timing of kidney replacement therapy initiation for acute kidney injury.The Cochrane database of systematic reviews · 2022Pooled it
- Accelerated-strategy renal replacement therapy for critically ill patients: A systematic review and meta-analysis.Medicine · 2022Pooled it
- The Efficacy and Safety of Early Renal Replacement Therapy in Critically Ill Patients With Acute Kidney Injury: A Meta-Analysis With Trial Sequential Analysis of Randomized Controlled Trials.Frontiers in medicine · 2022Pooled it
- Timing of renal replacement therapy initiation for acute kidney injury in critically ill patients: a systematic review of randomized clinical trials with meta-analysis and trial sequential analysis.Critical care (London, England) · 2021Pooled it
- Accelerated versus standard initiation of renal replacement therapy for critically ill patients with acute kidney injury: a systematic review and meta-analysis of RCT studies.Critical care (London, England) · 2021Pooled it
- Timing of initiation of renal replacement therapy in acute kidney injury: an updated meta-analysis of randomized controlled trials.Renal failure · 2020Pooled it
- Controversies in acute kidney injury: conclusions from a Kidney Disease: Improving Global Outcomes (KDIGO) Conference.Kidney international · 2020 · on this mapGuideline
- Furosemide stress test as a predictive marker of acute kidney injury progression or renal replacement therapy: a systemic review and meta-analysis.Critical care (London, England) · 2020Pooled it
- Effects of early dialysis on the outcomes of critically ill patients with acute kidney injury: a systematic review and meta-analysis of randomized controlled trials.Scientific reports · 2019Pooled it
- Pooled it
- Furosemide stress test predicts discontinuation of continuous renal replacement treatments in critically ill patients with acute kidney injury: a prospective multicenter trial.Renal failure · 2026Trial
- The furosemide stress test predicts the timing of continuous renal replacement therapy initiation in critically ill patients with acute kidney injury: a double-blind prospective intervention cohort study.European journal of medical research · 2023Trial
- Kidney Failure in Cardiogenic Shock.Circulation. Heart failure · 2026Review
- Impact of Using Biomarkers in Eligibility Criteria in Acute Kidney Injury Randomized Controlled Trials: A Systematic Review and Methodological Meta-Analysis.Kidney medicine · 2026Article
- Early-start vs. conventional-start peritoneal dialysis in AKI from cardiorenal syndrome type 1: a randomized controlled trial (STARRT-PD).International urology and nephrology · 2026Article
12 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe timing of initiation of renal replacement therapy (RRT) in severe acute kidney injury (AKI) remains controversial, with early initiation resulting in unnecessary therapy for some patients while expectant therapy may delay RRT for other patients. The furosemide stress test (FST) has been shown to predict the need for RRT and therefore could be used to exclude low-risk patients from enrollment in trials of RRT timing. We conducted this multicenter pilot study to determine whether FST could be used to screen patients at high risk for RRT and to determine the feasibility of incorporating FST into a trial of early initiation of RRT.
methodsFST was performed using intravenous furosemide (1 mg/kg in furosemide-naive patients or 1.5 mg/kg in previous furosemide users). FST-nonresponsive patients (urine output less than 200 mL in 2 h) were then randomized to early (initiation within 6 h) or standard (initiation by urgent indication) RRT.
resultsFST was completed in all patients (100%). Only 6/44 (13.6%) FST-responsive patients ultimately received RRT while 47/60 (78.3%) nonresponders randomized to standard RRT either received RRT or died (P < 0.001). Among 118 FST-nonresponsive patients, 98.3% in the early RRT arm and 75% in the standard RRT arm received RRT. The adherence to the protocol was 94.8% and 100% in the early and standard RRT group, respectively. We observed no differences in 28-day mortality (62.1 versus 58.3%, P = 0.68), 7-day fluid balance, or RRT dependence at day 28. However, hypophosphatemia occurred more frequently in the early RRT arm (P = 0.002).
conclusionThe furosemide stress test appears to be feasible and effective in identifying patients for randomization to different RRT initiation times. Our findings should guide implementation of large-scale randomized controlled trials for the timing of RRT initiation.
trial registrationclinicaltrials.gov, NCT02730117 . Registered 6 April 2016.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.