Evidence map›Paper›PMID 25327505›Full record

Trial reportEuropean journal of clinical pharmacology2015

Population pharmacokinetics of single-dose amikacin in critically ill patients with suspected ventilator-associated pneumonia.

C Burdet, O Pajot, C Couffignal, L Armand-Lefèvre, A Foucrier, C Laouénan, M Wolff, L Massias, F Mentré

Open access · bronzeAbstract readClinical TrialMulticenter Study
PubMed Publisher
In one paragraph

Trial report in European journal of clinical pharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 9% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
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  4. Optimizing the initial amikacin dosage in adults.Antimicrobial agents and chemotherapy · 2015
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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

9 authors at 4 institutions in 1 country.

C BurdetINSERM, IAME, UMR 1137, 75018, Paris, France, charles.burdet@inserm.fr.
O Pajot
C Couffignal
L Armand-Lefèvre
A Foucrier
C Laouénan
M Wolff
L Massias
F Mentré
Assistance Publique – Hôpitaux de Paris · FRInserm · FRCentre Hospitalier Victor Dupouy · FRUniversité Paris Cité · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsModifications of antimicrobials' pharmacokinetic parameters have been reported in critically ill patients, resulting in a risk of treatment failure. We characterized amikacin pharmacokinetic variability in critically ill patients with ventilator-associated pneumonia (VAP) and evaluated several dosing regimens.

methodsWe conducted a prospective multicenter study in critically ill patients with presumptive diagnosis of Gram-negative bacilli (GNB) VAP. Patients empirically received imipenem and a single-dose of amikacin, which was administered as a 30-min infusion (20 mg/kg). Concentrations were measured 0.5, 1, 8, 16, and 24 h after beginning of infusion. Pharmacokinetic parameters were estimated using a population approach. Main pharmacodynamic target was a ratio ≥ 10 between the concentration achieved 1 h after beginning of infusion (C 1h) and the minimal inhibitory concentration of the liable bacteria (MIC). We simulated individual C 1h for several dosing regimens by Monte Carlo method and computed C 1h/MIC ratios for MICs from 0.5 to 64 mg/L.

resultsSixty patients (47 males), median (range) age, and body weight, 61.5 years (28-84) and 78 kg (45-126), respectively, were included. Amikacin median C 1h was 45 mg/L (22-87). Mean value (between-patients variability) for CL, V1, Q, and V2 were 4.3 L/h (31 %), 15.9 L (22 %), 12.1 L/h (27 %), and 21.4 L (47 %), respectively. CL increased with CrCL (p<0.001) and V1 with body weight (p<0.001) and PaO2/FIO2 ratio (p<0.001). With a 25 mg/kg regimen, the pharmacodynamic target was achieved in 20 and 96 % for a MICs of 8 and 4 mg/L, respectively.

conclusionAmikacin clearance was decreased and its volume of distribution was increased as previously reported. A ≥ 25 mg/kg single-dose is needed for empirical treatment of GNB-VAP.

Indexed as

Models, BiologicalAdultAgedAged, 80 and overAmikacinAnti-Bacterial AgentsCritical IllnessFemaleGram-Negative BacteriaGram-Negative Bacterial InfectionsHumansMaleMicrobial Sensitivity TestsMiddle AgedPneumonia, Ventilator-AssociatedAmikacinAnti-Bacterial Agents

Identifiers

PMID25327505
OpenAlexW2048327036

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.