Evidence map›Paper›PMID 29239940›Full record

ArticleAnesthesia and analgesia2018

Prolonged Duration Local Anesthesia Using Liposomal Bupivacaine Combined With Liposomal Dexamethasone and Dexmedetomidine.

Alina Y Rwei, Robert T Sherburne, David Zurakowski, Bruce Wang, Daniel S Kohane

3 registry-linked trialsAbstract readComparative Study
In one paragraph

Article in Anesthesia and analgesia, 2018. 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 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.0field-weighted citation impact, top 6% 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.

NCT06981754 nacompletednot on this mapstarted 2025, after this paper: background citation

Intravenous Dexamethasone Palmitate for Prophylaxis of Postoperative Nausea and Vomiting After Minimally Invasive Endoscopic Surgery

TypeinterventionalSponsorBeijing Tiantan HospitalRan2025 to 2026Enrolled588ConditionsPostoperative Nausea and Vomiting, Dexamethasone Palmitate, Minimally Invasive Endoscopic ProceduresArmsDexamethasone palmitate, Dexamethasone
NCT06988124 narecruitingnot on this mapstarted 2025, after this paper: background citation

Intravenous Dexamethasone Palmitate for Prophylaxis of Postoperative Nausea and Vomiting After Craniotomy

TypeinterventionalSponsorBeijing Tiantan HospitalRan2025 to 2027Enrolled500ConditionsPostoperative Nausea and VomitingArmsDexamethasone Palmitate, Dexamethasone
NCT06997419 narecruitingnot on this mapstarted 2025, after this paper: background citation

Intravenous Dexamethasone Palmitate for Prophylaxis of Postoperative Nausea and Vomiting After Open Surgery

TypeinterventionalSponsorBeijing Tiantan HospitalRan2025 to 2026Enrolled500ConditionsPostoperative Nausea and Vomiting, Dexamethasone Palmitate, Open SurgeryArmsDexamethasone Palmitate, Dexamethasone
3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 44 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Dexmedetomidine as an Adjuvant in Peripheral Nerve Block.Drug design, development and therapy · 2023
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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

5 authors at 2 institutions in 1 country.

Alina Y RweiFrom the Department of Anesthesiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts.
Robert T SherburneFrom the Department of Anesthesiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts.
David ZurakowskiFrom the Department of Anesthesiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts.
Bruce WangFrom the Department of Anesthesiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts.
Daniel S KohaneFrom the Department of Anesthesiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts.
Boston Children's Hospital · USHarvard University · US

Funding

Prolonged Duration Local AnesthesiaR01GM073626 · NIGMS · MASSACHUSETTS GENERAL HOSPITAL · PI KOHANE, DANIEL S · 2006 to 2018
$4.7M
NIGMS NIH HHS R01 GM073626
6 · The paper itself

Abstract

backgroundThe relatively short duration of effect of local anesthetics has been addressed by encapsulation in drug delivery systems. Codelivery with a single compound that produces an adjuvant effect on nerve block but without intrinsic local anesthetic properties can further prolong the nerve block effect. Here, we investigated whether codelivery of more than 1 encapsulated adjuvant compound can further enhance nerve blockade.

methodsLiposomes loaded with bupivacaine (Bup), dexamethasone phosphate (DexP), or dexmedetomidine (DMED) were synthesized and its in vitro drug release profiles were determined. Animals (Sprague-Dawley rats) were injected with liposomal Bup (Lipo-Bup) and adjuvants at the sciatic nerve and underwent a modified hot plate test to assess the degree of nerve block. The duration of block was monitored and the tissue reaction was assessed.

resultsCoinjection of Lipo-Bup with liposomal DexP (Lipo-DexP) and liposomal DMED (Lipo-DMED) prolonged the duration of sciatic nerve block 2.9-fold compared to Lipo-Bup alone (95% confidence interval, 1.9- to 3.9-fold). The duration of the block using this combination was significantly increased to 16.2 ± 3.5 hours compared to Lipo-Bup with a single liposomal adjuvant (8.7 ± 2.4 hours with Lipo-DMED, P = .006 and 9.9 ± 5.9 hours with Lipo-DexP, P = .008). The coinjection of Lipo-Bup with liposomal adjuvants decreased tissue inflammation (P = .014) but did not have a significant effect on myotoxicity when compared to Lipo-Bup alone. Coinjection of Lipo-Bup with unencapsulated adjuvants prolonged the duration of nerve block as well (25.0 ± 6.3 hours; P < .001) however was accompanied by systemic side effects.

conclusionsCodelivery of Lipo-DexP and Lipo-DMED enhanced the efficacy of Lipo-Bup. This benefit was also seen with codelivery of both adjuvant molecules in the unencapsulated state, but with marked systemic toxicity.

Indexed as

Adjuvants, AnesthesiaAnesthesia, LocalAnesthetics, CombinedAnesthetics, LocalAnimalsBupivacaineDexamethasoneDexmedetomidineDrug LiberationKineticsLiposomesMaleNerve BlockPain ThresholdRats, Sprague-DawleySciatic NerveAdjuvants, AnesthesiaAnesthetics, CombinedAnesthetics, LocalBupivacaineDexamethasoneDexmedetomidineLiposomes

Identifiers

PMID29239940
PMCPMC5856594
OpenAlexW2774390070

What OpenQuestion holds

Textmetadata
LicenceTDM
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.