Evidence map›Paper›PMID 33762197›Full record

Trial reportBrazilian journal of anesthesiology (Elsevier)

Quadratus lumborum block (transmuscular approach) versus transversus abdominis plane block (unilateral subcostal approach) for perioperative analgesia in patients undergoing open nephrectomy: a randomized, double-blinded, controlled trial.

Amany H Saleh, Mai W Abdallah, Ashraf M Mahrous, Norhan A Ali

3 registry-linked trialsOpen access · diamondAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Brazilian journal of anesthesiology (Elsevier). The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
3.6field-weighted citation impact, top 7% 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.

NCT05191966 nacompletednot on this map

Comparison of the Effects of Subcostal Anterior Quadratus Lumborum Block and Thoracic Paravertebral Block on Postoperative Acute Pain in Laparoscopic Nephrectomy Surgery

TypeinterventionalSponsorOndokuz Mayıs UniversityRan2022 to 2023Enrolled30ConditionsAnesthesia, Analgesia, Acute Pain, Patient Controlled AnalgesiaArmsSubcostal Anterior Quadratus Lumborum Block, Thoracic Paravertebral Block
NCT05310266 nacompletednot on this map

Ultrasound-guided Transversus Abdominis Plane Block Versus Quadratus Lumborum Block for Postoperative Analgesia in Laparoscopic Appendectomy: A Prospective, Randomized, Controlled Clinical Study

TypeinterventionalSponsorBakirkoy Dr. Sadi Konuk Research and Training HospitalRan2020 to 2022Enrolled168ConditionsPost Operative Pain, Appendicitis Acute, SurgeryArmsTransversus abdominis plane block, Quadratus Lumborum Block
NCT05822011 nacompletednot on this map

Ultrasound Guided Rhomboid Intercostal Subserratus Plane Block Versus Erector Spinae Plane Block in Open Nephrectomy. Randomized Controlled Study

TypeinterventionalSponsorCairo UniversityRan2023 to 2025Enrolled42ConditionsPost Operative PainArmsRhomboid intercostal subserratus plane block, Erector spinae plane block
3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 22 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Article
  6. Dexmedetomidine as an Adjuvant in Peripheral Nerve Block.Drug design, development and therapy · 2023
    Review
  7. Article
  8. 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.

Amany H SalehCairo University, Kasr Al Aini Hospital, Cairo, Egypt. Electronic address: dr_amanyhassan@hotmail.com.
Mai W AbdallahCairo University, Kasr Al Aini Hospital, Cairo, Egypt.
Ashraf M MahrousCairo University, Kasr Al Aini Hospital, Cairo, Egypt.
Norhan A AliCairo University, Kasr Al Aini Hospital, Cairo, Egypt.
Cairo University · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivePatients undergoing open nephrectomy surgery experience severe perioperative pain, which is primarily due to incision of several muscles. Abdominal wall blocks are known to reduce pain without causing epidural-associated hypotension. We conducted this study to compare unilateral ultrasound-guided transmuscular quadratus lumborum block and posterior transversus abdominis block in combination with general anesthesia alone in terms of intraoperative and postoperative analgesics and hemodynamics and postoperative complications.

methodsThis was a randomized, double-blinded, controlled trial conducted in the operating room. This study included 48 patients aged 20-60 years, with ASA I and II, and a body mass index ≤ 30kg.m

resultsIntraoperative fentanyl consumption (μg) was significantly lower in Groups A and B (164.69±27.35 and 190.31±44.48, respectively) than in Group C (347.50±63.64) (p<0.001). Postoperatively, total pethidine consumption was significantly lower in Groups A and B than in Group C (85.31±6.68, 84.06±4.17mg, and 152.19±43.43mg, respectively) (p<0.001. Time to rescue analgesia was longer in Groups A and B than in Group C (138.75±52.39min, 202.50±72.25min, and 37.50±13.42min, respectively) (p<0.001). VAS score was significantly lower in Groups A and B than in Group C at 30min and 1, 2, 4, and 6hours postoperatively.

conclusionTransmuscular quadratus lumborum block and posterior transversus abdominis blocks were effective in providing perioperative analgesia in patients undergoing open nephrectomy. However, quadratus lumborum block provided superior analgesia.

Indexed as

AnalgesiaNerve BlockAbdominal MusclesAnalgesics, OpioidHumansNephrectomyPostoperative PainUltrasonography, InterventionalAnalgesics, OpioidOpen nephrectomyPostoperative analgesiaRegional anesthesiaVisual Analogue Scale

Identifiers

PMID33762197
PMCPMC9373083
OpenAlexW3138977485

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.