Evidence map›Paper›PMID 33800559›Full record

Trial reportInternational journal of environmental research and public health2021

Quadratus Lumborum and Transversus Abdominis Plane Blocks and Their Impact on Acute and Chronic Pain in Patients after Cesarean Section: A Randomized Controlled Study.

Michał Borys, Aleksandra Zamaro, Beata Horeczy, Ewa Gęszka, Marek Janiak, Piotr Węgrzyn, Mirosław Czuczwar, Paweł Piwowarczyk

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
5.6field-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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Article
  6. Article
  7. Article
  8. Article
  9. Ultrasound-guided fascial plane blocks in chronic pain: a narrative review.Journal of anesthesia, analgesia and critical care · 2024
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. 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 2 institutions in 1 country.

Michał BorysSecond Department of Anesthesia and Intensive Care, Medical University of Lublin, 20-059 Lublin, Poland.ORCID 0000-0002-6183-811X
Aleksandra ZamaroDepartment of Obstetrics and Perinatology, Faculty of Health Sciences, Medical University of Warsaw, 02-091 Warszawa, Poland.
Beata HoreczyAnesthesiology and Intensive Care Department with the Center for Acute Poisoning, St. Jadwiga Provincial Clinical Hospital, 35-301 Rzeszów, Poland.
Ewa GęszkaDepartment of Obstetrics and Perinatology, Faculty of Health Sciences, Medical University of Warsaw, 02-091 Warszawa, Poland.
Marek JaniakFirst Department of Anesthesiology and Intensive Care, Medical University of Warsaw, 02-091 Warszawa, Poland.ORCID 0000-0001-5492-2594
Piotr WęgrzynDepartment of Obstetrics and Perinatology, Faculty of Health Sciences, Medical University of Warsaw, 02-091 Warszawa, Poland.ORCID 0000-0002-9876-8493
Mirosław CzuczwarSecond Department of Anesthesia and Intensive Care, Medical University of Lublin, 20-059 Lublin, Poland.
Paweł PiwowarczykSecond Department of Anesthesia and Intensive Care, Medical University of Lublin, 20-059 Lublin, Poland.
Medical University of Warsaw · PLMedical University of Lublin · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSevere postoperative pain is a significant problem after cesarean sections.

methodsThis study was a randomized, controlled trial of 105 patients conducted in two hospitals. All patients were anesthetized spinally for elective cesarean section. Each participant was randomly allocated to one of three study groups: the quadratus lumborum block (QLB) group, the transversus abdominis plane block (TAPB) group, or the control (CON) group. The primary outcome of this study determined acute pain intensity on the visual analog scale (VAS). The secondary outcomes determined morphine consumption and chronic pain evaluation according to the Neuropathic Pain Symptom Inventory (NPSI) after hospital discharge.

resultsAt rest, the pain intensity was significantly higher in the CON group than in the QLB and TAPB groups at hours two and eight. Upon activity, the pain in the control subjects was more severe than in the QLB and TAPB groups in three and two of five measurements, respectively. Moreover, morphine consumption was significantly lower in the QLB (9 (5-10)) and TAPB (10 (6-14)) groups than in the CON (16 (11-19)) group. Persistent postoperative pain was significantly lower in the QLB group than in the CON group at months one and six following hospital discharge.

conclusionsBoth the QLB and TAPB can improve pain management after cesarean delivery. Moreover, the QLB might reduce the severity of persistent postoperative pain months after cesarean section.

Indexed as

Chronic PainNerve BlockAbdominal MusclesCesarean SectionFemaleHumansPostoperative PainPregnancyNeuropathic Pain Symptom Inventorypatient-controlled analgesiaquadratus lumborum blocktransversus abdominis plane blockvisual analog scale

Identifiers

PMID33800559
PMCPMC8037180
OpenAlexW3143785542

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.