Evidence map›Paper›PMID 33470358›Full record

Observational studyRevista Brasileira de terapia intensiva

Hemodynamically stable oliguric patients usually do not respond to fluid challenge.

Vinicius Brenner Felice, Thiago Costa Lisboa, Lucas Vieira de Souza, Luana Canevese Sell, Gilberto Friedman

Abstract readObservational Study
In one paragraph

Observational study in Revista Brasileira de terapia intensiva. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Trial
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

5 authors.

Vinicius Brenner FeliceUnidade Central de Terapia Intensiva, Complexo Hospitalar Santa Casa de Porto Alegre - Porto Alegre (RS), Brasil.
Thiago Costa LisboaUnidade de Terapia Intensiva, Hospital de Clínicas de Porto Alegre, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul - Porto Alegre (RS), Brasil.
Lucas Vieira de SouzaUnidade Central de Terapia Intensiva, Complexo Hospitalar Santa Casa de Porto Alegre - Porto Alegre (RS), Brasil.
Luana Canevese SellUnidade Central de Terapia Intensiva, Complexo Hospitalar Santa Casa de Porto Alegre - Porto Alegre (RS), Brasil.
Gilberto FriedmanUnidade Central de Terapia Intensiva, Complexo Hospitalar Santa Casa de Porto Alegre - Porto Alegre (RS), Brasil.ORCID http://orcid.org/0000-0001-9369-2488

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate renal responsiveness in oliguric critically ill patients after a fluid challenge.

methodsWe conducted a prospective observational study in one university intensive care unit. Patients with urine output < 0.5mL/kg/h for 3 hours with a mean arterial pressure > 60mmHg received a fluid challenge. We examined renal fluid responsiveness (defined as urine output > 0.5mL/kg/h for 3 hours) after fluid challenge.

resultsForty-two patients (age 67 ± 13 years; APACHE II score 16 ± 6) were evaluated. Patient characteristics were similar between renal responders and renal nonresponders. Thirteen patients (31%) were renal responders. Hemodynamic or perfusion parameters were not different between those who did and those who did not increase urine output before the fluid challenge. The areas under the receiver operating characteristic curves were calculated for mean arterial pressure, heart rate, creatinine, urea, creatinine clearance, urea/creatinine ratio and lactate before the fluid challenge. None of these parameters were sensitive or specific enough to predict reversal of oliguria.

conclusionAfter achieving hemodynamic stability, oliguric patients did not increase urine output after a fluid challenge. Systemic hemodynamic, perfusion or renal parameters were weak predictors of urine responsiveness. Our results suggest that volume replacement to correct oliguria in patients without obvious hypovolemia should be done with caution.

Indexed as

Intensive Care UnitsOliguriaAgedAged, 80 and overCreatinineCritical IllnessFluid TherapyHemodynamicsHumansMiddle AgedCreatinine

Identifiers

PMID33470358
PMCPMC7853676

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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.