Evidence map›Paper›PMID 34702183›Full record

Trial reportBMC anesthesiology2021

A comparison of ultrasound guided bilateral single injection shot Erector Spinae Plane blocks versus wound infiltration for post-operative analgesia in laparoscopic assisted colonic surgery- a prospective randomised study.

V Rao Kadam, G Ludbrook, R M van Wijk, P Hewett, V Thiruvenkatarajan, S Edwards, P Williams, S Adhikary

Open access · goldAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in BMC anesthesiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 3 pooled it
1.5field-weighted citation impact, top 18% 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 syntheses or guidelines pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Erector spinae plane block for postoperative pain.The Cochrane database of systematic reviews · 2024
    Pooled it
  3. Erector spinae plane block for postoperative pain.The Cochrane database of systematic reviews · 2023
    Pooled it
  4. 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

8 authors at 3 institutions in 2 countries.

V Rao KadamAcute Care Medicine, The University of Adelaide, The Queen Elizabeth Hospital, Adelaide, SA, Australia. Vasanth.rao@sa.gov.au.
G LudbrookAcute Care Medicine, University of Adelaide, Royal Adelaide Hospital, Adelaide, SA, Australia.
R M van WijkAcute Care Medicine, The University of Adelaide, The Queen Elizabeth Hospital, Adelaide, SA, Australia.
P HewettDepartment of Surgery, University of Adelaide, The Queen Elizabeth Hospital, Adelaide, SA, Australia.
V ThiruvenkatarajanAcute Care Medicine, The University of Adelaide, The Queen Elizabeth Hospital, Adelaide, SA, Australia.
S EdwardsAdelaide Health Technology Assessment, School of Public Health, University of Adelaide, Adelaide, SA, Australia.
P WilliamsAcute Care Medicine, The University of Adelaide, The Queen Elizabeth Hospital, Adelaide, SA, Australia.
S AdhikaryDepartment of Anesthesiology and Perioperative Medicine, Penn State Hershey Medical Center, Penn State College of Medicine, Hershey, PA, USA.
University of Adelaide · AUPenn State Milton S. Hershey Medical Center · USQueen Elizabeth Hospital · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBoth wound infiltration (WI) with local anaesthetic and Erector Spinae Plane block (ESPB) have been described for post-operative analgesia after abdominal surgery. This study compared the efficacy of WI versus ESPB for post-operative analgesia after laparoscopic assisted colonic surgery.

methodsSeventy-two patients between 18 and 85 years of age undergoing elective surgery were randomised to receive either WI or ESPB. In the WI group a 40 ml bolus of 0.5% Ropivacaine, infiltrated at the ports and minimally invasive wound at subcutaneous and fascia layers. In the ESPB group at T8 level, under ultrasound guidance, a 22-gauge nerve block needle was passed through the Erector Spinae muscle to reach its fascia. A dose up to 40 ml of 0.5% Ropivacaine, divided into two equal volumes, was injected at each side. Both groups had a multimodal analgesic regime, including regular Paracetamol, dexamethasone and patient-controlled analgesia (PCA) with Fentanyl. The primary end point was a post-operative pain score utilising a verbal Numerical Rating Score (NRS, 0-10) on rest and coughing in the post anaesthetic care unit (PACU) and in the first 24 h. Secondary outcomes measured were: opioid usage, length of stay and any clinical adverse events.

resultsThere was no significant treatment difference in PACU NRS at rest and coughing (p-values 0. 382 and 0.595respectively). Similarly, there were no significant differences in first 24 h NRS at rest and coughing (p-values 0.285 and 0.431 respectively). There was no significant difference in Fentanyl use in PACU or in the first 24 h (p- values 0.900 and 0.783 respectively). Neither was there a significant difference found in mean total Fentanyl use between ESPB and WI groups (p-value 0.787).

conclusionOur observations found both interventions had an overall similar efficacy.

trial registrationThe study was registered with the Australian New Zealand Clinical Trial Registry (ACTRN: 12619000113156 ).

Indexed as

Anesthetics, LocalColonFemaleHumansLaparoscopyMaleMiddle AgedNerve BlockPain MeasurementPostoperative PainProspective StudiesUltrasonography, InterventionalAnesthetics, LocalErector Spinae PlaneLocal anaestheticPost-operative analgesiaUltrasound

Identifiers

PMID34702183
PMCPMC8547045
OpenAlexW3209184819

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.