Evidence map›Paper›PMID 24397879›Full record

Trial reportJournal of cardiothoracic surgery2014

Early postoperative serum cystatin C predicts severe acute kidney injury following cardiac surgery: a post-hoc analysis of a randomized controlled trial.

Arndt-Holger Kiessling, Juliane Dietz, Christian Reyher, Ulrich A Stock, Andres Beiras-Fernandez, Anton Moritz

Open access · goldAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of cardiothoracic surgery, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
1.8field-weighted citation impact, top 16% of its field
1 · What the graph read from 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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 28 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Arndt-Holger KiesslingDepartment of Thoracic and Cardiovascular Surgery, Johann Wolfgang Goethe University, Theodor Stern Kai 7, Frankfurt am Main 60590, Germany. cardiac.surgeon@dr-kiessling.com.
Juliane Dietz
Christian Reyher
Ulrich A Stock
Andres Beiras-Fernandez
Anton Moritz
Goethe University Frankfurt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveAcute kidney injury (AKI) after cardiac surgery procedures is associated with poor patient outcomes. Cystatin C as a marker for renal failure has been shown to be of prognostic value; however, a wide range of its predictive accuracy has been reported. The aim of the study was to evaluate whether the measurement of pre- and postoperative serum cystatin C improves the prediction of AKI.

methodsIn a single-centre, prospective study of 70 patients (74 ± 9 ys; range 47-85 ys; 77% male), cystatin C was measured six times: (T1=preoperative, T2=start cardiopulmonary bypass (CPB), T3=20 min after CPB, T4=end of operation; T5=24 h postoperatively; T6=7d postoperatively). Predictive property, in terms of the need for renal replacement therapy (RRT), was analysed by receiver operating characteristics (ROC) statistics and described by the area under the curve (AUC).

resultsWith respect to RRT (n=8), serum cystatin C was significantly higher at the end of the operation (T4), 24 h postoperatively at T5 and at T6. The AUCs for preoperative T1 and intraoperative T2/3 cystatin C were <0.7 (95% CI, 0.47-0.85). The earliest significant predictive AUCs were found at the end of the operation (T4: p=0.03 95% CI 0.58-0.88 AUC 0.73) and 24 h postoperatively (T5: p=0.003 95% CI 0.74-0.96 AUC 0.85).

conclusionsEarly postoperative serum cystatin C increase appears to be a moderate biomarker in the prediction of AKI, whereas a preoperative and intraoperative cystatin C increase has only a limited diagnostic and predictive value.

Indexed as

Early DiagnosisPostoperative ComplicationsAcute Kidney InjuryAgedAged, 80 and overCardiac Surgical ProceduresCystatin CFemaleFollow-Up StudiesHumansImmunoassayMaleMiddle AgedPredictive Value of TestsProspective StudiesTime FactorsCystatin C

Identifiers

PMID24397879
PMCPMC3896845
OpenAlexW2099705606

What OpenQuestion holds

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Registered trials

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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.