Evidence map›Paper›PMID 37464387›Full record

ArticlePerioperative medicine (London, England)2023

Postoperative analgesia for upper gastrointestinal surgery: a retrospective cohort analysis.

Katrina P Pirie, Andy Wang, Joanna Yu, Bao Teng, Matthew A Doane, Paul S Myles, Bernhard Riedel

Open access · goldAbstract read
In one paragraph

Article in Perioperative medicine (London, England), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

4 citing papers in PubMed, 3 citations in OpenAlex.

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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

7 authors at 4 institutions in 1 country.

Katrina P PirieDepartment of Anaesthesiology and Perioperative Medicine, Alfred Hospital, Melbourne, Australia. katrina.pirie@monash.edu.
Andy WangSydney Medical School (Northern), Faculty of Medicine and Health, The University of Sydney, Sydney, Australia.
Joanna YuDepartment of Anaesthesia and Perioperative Medicine, Royal North Shore Hospital, Sydney, Australia.
Bao TengDepartment of Anaesthesia and Perioperative Medicine, Royal North Shore Hospital, Sydney, Australia.
Matthew A DoaneSydney Medical School (Northern), Faculty of Medicine and Health, The University of Sydney, Sydney, Australia.
Paul S MylesDepartment of Anaesthesiology and Perioperative Medicine, Alfred Hospital, Melbourne, Australia.
Bernhard RiedelDepartment of Anaesthesia, Perioperative and Pain Medicine, Peter MacCallum Cancer Centre, Melbourne, Australia.
Royal North Shore Hospital · AUThe Alfred Hospital · AUPeter MacCallum Cancer Centre · AUUniversity of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThoracic epidural analgesia is commonly used for upper gastrointestinal surgery. Intrathecal morphine is an appealing opioid-sparing non-epidural analgesic option, especially for laparoscopic gastrointestinal surgery.

methodsFollowing ethics committee approval, we extracted data from the electronic medical records of patients at Royal North Shore Hospital (Sydney, Australia) that had upper gastrointestinal surgery between November 2015 and October 2020. Postoperative morphine consumption and pain scores were modelled with a Bayesian mixed effect model.

resultsA total of 427 patients were identified who underwent open (n = 300), laparoscopic (n = 120) or laparoscopic converted to open (n = 7) upper gastrointestinal surgery. The majority of patients undergoing open surgery received a neuraxial technique (thoracic epidural [58%, n = 174]; intrathecal morphine [21%, n = 63]) compared to a minority in laparoscopic approaches (thoracic epidural [3%, n = 4]; intrathecal morphine [12%, n = 14]). Intrathecal morphine was superior over non-neuraxial analgesia in terms of lower median oral morphine equivalent consumption and higher probability of adequate pain control; however, this effect was not sustained beyond postoperative day 2. Thoracic epidural analgesia was superior to both intrathecal and non-neuraxial analgesia options for both primary outcomes, but at the expense of higher rates of postoperative hypotension (60%, n = 113) and substantial technique failure rates (32%).

conclusionsWe found that thoracic epidural analgesia was superior to intrathecal morphine, and intrathecal morphine was superior to non-neuraxial analgesia, in terms of reduced postoperative morphine requirements and the probability of adequate pain control in patients who underwent upper gastrointestinal surgery. However, the benefits of thoracic epidural analgesia and intrathecal morphine were not sustained across all time periods regarding control of pain. The study is limited by its retrospective design, heterogenous group of upper gastrointestinal surgeries and confounding by indication.

Indexed as

Intrathecal morphineLaparoscopicLaparotomyOpioidsPain controlThoracic epidural analgesiaUpper gastro-intestinal surgery

Identifiers

PMID37464387
PMCPMC10355044
OpenAlexW4384663422

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LicenceCC BY
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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.