Evidence map›Paper›PMID 26407689›Full record

Trial reportEuropean journal of clinical pharmacology2015

Dexmedetomidine pharmacokinetics in the obese.

Luis I Cortínez, Brian J Anderson, Nick H G Holford, Valentina Puga, Natalia de la Fuente, Hernán Auad, Sandra Solari, Fidel A Allende, Mauricio Ibacache

Abstract readRandomized Controlled Trial
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 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
6.3field-weighted citation impact, top 3% 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

33 citing papers in PubMed, 64 citations in OpenAlex.

  1. Trial
  2. Observational
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  4. Review
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  10. Perioperative Acetaminophen Dosing in Obese Children.Children (Basel, Switzerland) · 2023
    Review
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  12. Review
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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 3 institutions in 2 countries.

Luis I CortínezDepartamento de Anestesiología and Laboratorio Clínico, Escuela de Medicina, Hospital Clínico U. Católica, Pontificia Universidad Católica de Chile, Marcoleta 367, PO Box: 114-D, Santiago, Chile. licorti@med.puc.cl.
Brian J AndersonDepartment of Anaesthesiology, University of Auckland, Auckland, New Zealand.
Nick H G HolfordDepartment of Pharmacology & Clinical Pharmacology, University of Auckland, Auckland, New Zealand.
Valentina PugaDepartamento de Anestesiología and Laboratorio Clínico, Escuela de Medicina, Hospital Clínico U. Católica, Pontificia Universidad Católica de Chile, Marcoleta 367, PO Box: 114-D, Santiago, Chile.
Natalia de la FuenteDepartamento de Anestesiología and Laboratorio Clínico, Escuela de Medicina, Hospital Clínico U. Católica, Pontificia Universidad Católica de Chile, Marcoleta 367, PO Box: 114-D, Santiago, Chile.
Hernán AuadDepartamento de Anestesiología and Laboratorio Clínico, Escuela de Medicina, Hospital Clínico U. Católica, Pontificia Universidad Católica de Chile, Marcoleta 367, PO Box: 114-D, Santiago, Chile.
Sandra SolariLaboratorio Clínico, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
Fidel A AllendeLaboratorio Clínico, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
Mauricio IbacacheDepartamento de Anestesiología and Laboratorio Clínico, Escuela de Medicina, Hospital Clínico U. Católica, Pontificia Universidad Católica de Chile, Marcoleta 367, PO Box: 114-D, Santiago, Chile.
Pontificia Universidad Católica de Chile · CLHospital Clínico de la Universidad Católica · CLUniversity of Auckland · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aims to characterize the influence of body weight and composition on the pharmacokinetics of dexmedetomidine.

methodsTwenty obese patients and 20 non-obese patients scheduled for elective laparoscopic surgery were given dexmedetomidine infusion schemes. Venous blood samples were taken during and after dexmedetomidine administration. Population pharmacokinetic modeling was undertaken to investigate fat free mass (FFM) and normal fat mass (NFM) as size descriptors of volumes and clearances using non-linear mixed effects modeling. NFM partitions total body weight into FFM and fat mass calculated from total body weight (TBW) minus FFM. The relative influence of fat mass compared to FFM is described by the fraction of fat mass that makes fat equivalent to FFM (Ffat).

resultsTheory-based allometric scaling using FFM best described weight and body composition differences in clearances and volumes A negative effect of fat mass of with an exponential parameter of -0.00541/kg (95 % CI -0.0118 to -0.00246) was estimated for clearance which indicates increased fat mass is associated with impairment of clearance.

conclusionsThe use of theory-based allometry with predictions of fat free mass has been able to separate the influences of weight and body composition and indicates that size-normalized clearance of dexmedetomidine is impaired in patients who are obese.

Indexed as

Models, BiologicalAdolescentAdultBody CompositionBody WeightDexmedetomidineFemaleHumansHypnotics and SedativesLaparoscopyMaleMiddle AgedObesityYoung AdultDexmedetomidineHypnotics and SedativesDexmedetomidineFat free massObese

Identifiers

PMID26407689
OpenAlexW1464809537

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.