Evidence map›Paper›PMID 24496960›Full record

Trial reportClinical pharmacokinetics2014

Evidence-based morphine dosing for postoperative neonates and infants.

Elke H J Krekels, Dick Tibboel, Saskia N de Wildt, Ilse Ceelie, Albert Dahan, Monique van Dijk, Meindert Danhof, Catherijne A J Knibbe

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Clinical pharmacokinetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
20.2field-weighted citation impact, top 1% 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

32 citing papers in PubMed, 81 citations in OpenAlex.

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  6. Biomarkers for assessing pain and pain relief in the neonatal intensive care unit.Frontiers in pain research (Lausanne, Switzerland) · 2024
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  9. Recent advances in the ontogeny of drug disposition.British journal of clinical pharmacology · 2022
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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

8 authors at 4 institutions in 2 countries.

Elke H J KrekelsDivision of Pharmacology, Leiden Academic Center for Drug Research, Leiden University, Leiden, The Netherlands.
Dick Tibboel
Saskia N de Wildt
Ilse Ceelie
Albert Dahan
Monique van Dijk
Meindert Danhof
Catherijne A J Knibbe
Centre for Human Drug Research · NLBoston Children's Hospital · USErasmus MC - Sophia Children’s Hospital · NLLeiden University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesFrom a previously validated paediatric population pharmacokinetic model, it was derived that non-linear morphine maintenance doses of 5 μg/kg(1.5)/h, with a 50 % dose reduction in neonates with a postnatal age (PNA) <10 days, yield similar morphine and metabolite concentrations across patients younger than 3 years. Compared with traditional dosing, this model-derived dosing regimen yields significantly reduced doses in neonates aged <10 days.

methodsConcentration predictions of the population model were prospectively evaluated in postoperative term neonates and infants up to the age of 1 year who received morphine doses according to the model-derived algorithm. The efficacy of this dosing algorithm was evaluated using morphine rescue medication and actual average infusion rates.

resultsMorphine and metabolite concentrations were accurately predicted by the paediatric pharmacokinetic morphine model. With regard to efficacy, 5 out of 18 neonates (27.8 %) with a PNA of <10 days needed rescue medication versus 18 of the 20 older patients (90 %) (p = 0.06). The median (interquartile range [IQR]) total morphine rescue dose was 0 (0-20) μg/kg in younger patients versus 193 (19-362) μg/kg in older patients (p = 0.003). The median (IQR) actual average morphine infusion rate was 4.4 (4.0-4.8) μg/kg/h in younger patients versus 14.4 (11.3-23.4) μg/kg/h in older patients (p < 0.001).

conclusionMorphine paediatric dosing algorithms corrected for pharmacokinetic differences alone yield effective doses that prevent over-dosing for neonates with a PNA <10 days. The fact that many neonates and infants with a PNA ≥10 days still required rescue medication warrants pharmacodynamic studies to further optimize the dosing algorithm for these patients.

Indexed as

Models, BiologicalAge FactorsAlgorithmsAnalgesics, OpioidDose-Response Relationship, DrugDouble-Blind MethodFemaleHumansInfantInfant, NewbornMaleMorphinePostoperative PainProspective StudiesAnalgesics, OpioidMorphine

Identifiers

PMID24496960
OpenAlexW2075435606

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.