Evidence map›Paper›PMID 35350983›Full record

Trial reportBMC anesthesiology2022

Comparison of plasma levobupivacaine concentrations with and without epinephrine following erector spinae plane block for breast cancer surgery: a randomized controlled trial.

Hiroe Shigeta, Rie Yasumura, Yoshifumi Kotake

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC anesthesiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Intercostal nerve blockJournal of thoracic disease · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Local anesthetic dosing for fascial plane blocks to avoid systemic toxicity: a narrative review.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2025
    Review
  7. Article
  8. The Utility of Erector Spinae Plane Blocks in Breast Surgery: A Practical Review.Plastic and reconstructive surgery. Global open · 2025
    Review
  9. 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

3 authors at 2 institutions in 1 country.

Hiroe ShigetaDepartment of Anesthesiology, Toho University Graduate School of Medicine, Tokyo, Japan. hiroe_y_0614@hotmail.co.jp.
Rie YasumuraDepartment of Anesthesia, National Hospital Organization, Tokyo Medical Center, Tokyo, Japan.
Yoshifumi KotakeDepartment of Anesthesiology, School of Medicine, Toho University, Tokyo, Japan.
Toho University · JPTokyo Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe erector spinae plane (ESP) block requires a large volume of local anesthetic to provide effective analgesia, which has the potential to cause local anesthetic systemic toxicity (LAST). Adjunctive epinephrine slows the entry of local anesthetic into the plasma and decreases its toxic effect on vulnerable tissues. We compared plasma levobupivacaine concentrations with and without epinephrine after ESP blocks for breast cancer surgery.

methodsIn this prospective, double-blinded, randomized controlled trial, 35 patients who underwent elective unilateral partial mastectomy with sentinel lymph node biopsy were enrolled. The patients were randomized to group L (ESP block with 2 mg/kg levobupivacaine) or LE (ESP block with 2 mg/kg levobupivacaine and 5 μg/mL epinephrine). Blood samples were obtained at 2.5, 5, 7.5, 10, 12.5, 15, 30, 60, and 120 min after the ESP block, and plasma concentrations of levobupivacaine were compared.

resultsTwenty-nine patients were included in the analysis. The maximum plasma concentration (C

conclusionsA single bolus of 2 mg/kg levobupivacaine in the ESP block resulted in a short T

trial registrationUMIN Clinical Trials Registry, UMIN000034479 . The trial was retrospectively registered on October 13, 2018.

Indexed as

Breast NeoplasmsNerve BlockAnalgesics, OpioidEpinephrineFemaleHumansLevobupivacaineMastectomyPostoperative PainProspective StudiesUltrasonography, InterventionalAnalgesics, OpioidEpinephrineLevobupivacaineEpinephrineErector spinae plane blockPlasma levobupivacaine concentrations

Identifiers

PMID35350983
PMCPMC8966335
OpenAlexW4221117542

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.