Evidence map›Paper›PMID 37988813›Full record

SynthesisJournal of clinical anesthesia2024

Dexmedetomidine improves pulmonary outcomes in thoracic surgery under one-lung ventilation: A meta-analysis.

Andres Zorrilla-Vaca, Michael C Grant, Martin Law, Chelsea J Messinger, Paolo Pelosi, Dirk Varelmann

Open access · greenAbstract readMeta-Analysis
In one paragraph

Synthesis in Journal of clinical anesthesia, 2024. 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
2.8field-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, 11 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Post-Operative Delirium in Elderly Patients: A Narrative Review.International journal of molecular sciences · 2025
    Review
  7. Alveolar macrophages polarization switch via αInflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    Article
  8. Article
  9. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 4 countries.

Andres Zorrilla-VacaDepartment of Anesthesiology, Pain and Perioperative Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Anesthesiology, Universidad del Valle, Cali, Colombia. Electronic address: andres.zorrilla@correounivalle.edu.co.
Michael C GrantDepartment of Anesthesiology and Critical Care Medicine, The Johns Hopkins Hospital, Baltimore, MD, USA.
Martin LawMedical Research Council Biostatistics Unit, University of Cambridge, Cambridge, UK.
Chelsea J MessingerDepartment of Anesthesiology, Pain and Perioperative Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Paolo PelosiAnesthesiology and Critical Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy; Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy.
Dirk VarelmannDepartment of Anesthesiology, Pain and Perioperative Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Harvard University · USBrigham and Women's Hospital · USJohns Hopkins Hospital · USMRC Biostatistics Unit · GBOspedale Policlinico San Martino · IT

Funding

Medical Scientist Training ProgramT32GM007753 · NIGMS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI WALENSKY, LOREN DAVID · 1985 to 2021
$50.0M
Medical Scientist Training ProgramT32GM144273 · NIGMS · HARVARD MEDICAL SCHOOL · PI David Shumway Jones, Jacqueline A. Lees · 2022 to 2026
$14.7M
MD-PhD Training Program in Aging and the Social/Behavioral SciencesT32AG051108 · NIA · HARVARD MEDICAL SCHOOL · PI MCWILLIAMS, JOHN MICHAEL · 2015 to 2025
$2.1M
NIA NIH HHS T32 AG051108NIGMS NIH HHS T32 GM007753NIGMS NIH HHS T32 GM144273
6 · The paper itself

Abstract

introductionDexmedetomidine improves intrapulmonary shunt in thoracic surgery and minimizes inflammatory response during one-lung ventilation (OLV). However, it is unclear whether such benefits translate into less postoperative pulmonary complications (PPCs). Our objective was to determine the impact of dexmedetomidine on the incidence of PPCs after thoracic surgery.

methodsMajor databases were used to identify randomized trials that compared dexmedetomidine versus placebo during thoracic surgery in terms of PPCs. Our primary outcome was atelectasis within 7 days after surgery. Other specific PPCs included hypoxemia, pneumonia, and acute respiratory distress syndrome (ARDS). Secondary outcome included intraoperative respiratory mechanics (respiratory compliance [Cdyn]) and postoperative lung function (forced expiratory volume [FEV1]). Random effects models were used to estimate odds ratios (OR).

resultsTwelve randomized trials, including 365 patients in the dexmedetomidine group and 359 in the placebo group, were analyzed in this meta-analysis. Patients in the dexmedetomidine group were less likely to develop postoperative atelectasis (2.3% vs 6.8%, OR 0.42, 95%CI 0.18-0.95, P = 0.04; low certainty) and hypoxemia (3.4% vs 11.7%, OR 0.26, 95%CI 0.10-0.68, P = 0.01; moderate certainty) compared to the placebo group. The incidence of postoperative pneumonia (3.2% vs 5.8%, OR 0.57, 95%CI 0.25-1.26, P = 0.17; moderate certainty) or ARDS (0.9% vs 3.5%, OR 0.39, 95%CI 0.07-2.08, P = 0.27; moderate certainty) was comparable between groups. Both intraoperative Cdyn and postoperative FEV1 were higher among patients that received dexmedetomidine with a mean difference of 4.42 mL/cmH

conclusionDexmedetomidine administration during thoracic surgery may potentially reduce the risk of postoperative atelectasis and hypoxemia. However, current evidence is insufficient to demonstrate an effect on pneumonia or ARDS.

Indexed as

DexmedetomidineOne-Lung VentilationPneumoniaPulmonary AtelectasisRespiratory Distress SyndromeThoracic SurgeryHumansHypoxiaLungPostoperative ComplicationsDexmedetomidineDexmedetomidineHypoxemiaLung compliancePneumoniaPulmonary atelectasisThoracic surgery

Identifiers

PMID37988813
PMCPMC11034816
OpenAlexW4388816658

What OpenQuestion holds

Textmetadata
LicenceTDM
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.