Evidence map›Paper›PMID 29855999›Full record

SynthesisClinical drug investigation2018

Peri-operative Medication Dosing in Adult Obese Elective Surgical Patients: A Systematic Review of Clinical Studies.

Zahid Hussain, Colin Curtain, Corinne Mirkazemi, Syed Tabish Razi Zaidi

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Clinical drug investigation, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 22% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. [Dosage of presurgical cefazolin in obese and non-obese patients. Does weight matter?]Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2020
    Article
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

4 authors at 1 institution in 1 country.

Zahid HussainDivision of Pharmacy, School of Medicine, Faculty of Health, University of Tasmania, Pharmacy Building, Dobson Road, Private Bag 26, Hobart, TAS, 7001, Australia.
Colin CurtainDivision of Pharmacy, School of Medicine, Faculty of Health, University of Tasmania, Pharmacy Building, Dobson Road, Private Bag 26, Hobart, TAS, 7001, Australia.
Corinne MirkazemiDivision of Pharmacy, School of Medicine, Faculty of Health, University of Tasmania, Pharmacy Building, Dobson Road, Private Bag 26, Hobart, TAS, 7001, Australia.
Syed Tabish Razi ZaidiDivision of Pharmacy, School of Medicine, Faculty of Health, University of Tasmania, Pharmacy Building, Dobson Road, Private Bag 26, Hobart, TAS, 7001, Australia. Tabish.RaziZaidi@utas.edu.au.ORCID http://orcid.org/0000-0002-2031-1055
University of Tasmania · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDespite the increasing numbers of obese patients undergoing elective surgery, there is a lack of evidence-based dosing guidelines for peri-operative medications in obesity.

objectiveThe objective was to systematically review the dosing and outcomes of peri-operative medications used in obese elective surgical patients.

methodsMedical subject headings and general keywords were used to systematically search multiple databases (PubMed, EMBASE, Cochrane Library and CINAHL). Studies of medications in obese surgical patients were included if they had a non-obese control or comparative dosing scalar group. The National Health and Medical Research Council GRADE tool was used to assess quality of evidence for each drug.

resultsThirty-three studies of six drug classes were identified: anaesthetics (n = 6), muscle relaxants (n = 10), neuromuscular reversal agents (n = 3), analgesics (n = 2), antibiotics (n = 5) and anticoagulants (n = 7). A variety of dose scalars and/or recommendations was observed for various medications. Lean body weight was proposed as a suitable weight scalar for induction of anaesthesia with propofol whereas total body weight for maintenance of anaesthesia with propofol and depolarizing muscle relaxants. Ideal body weight was reported as an appropriate dosing scalar for non-depolarizing muscle relaxants and neuromuscular reversal agents. Both corrected body weight 40% and ideal body weight were reported as suitable weight scalars for post-operative analgesia with morphine. The standard 2-g dose of cefazolin appeared effective in the prevention of surgical site infection. Body mass index stratified dosing of enoxaparin was effective for venous thromboembolism prevention.

conclusionNo drug recommendation achieved an "Excellent" quality of evidence. Limited data suggest that clinicians should consider each individual class of medication when selecting a dose for obese surgical patients. Routine use of fixed-dosing regimens is likely to under- or overdose obese patients thus predisposing them to adverse drug events or treatment failure leading to patient harm.

Indexed as

AnalgesicsAnticoagulantsBody Mass IndexBody WeightClinical Trials as TopicElective Surgical ProceduresEnoxaparinHumansMuscle Relaxants, CentralObesityPreoperative CarePropofolAnalgesicsAnticoagulantsEnoxaparinMuscle Relaxants, CentralPropofol

Identifiers

PMID29855999
OpenAlexW2805453101

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.