Evidence map›Paper›PMID 28685722›Full record

SynthesisChinese medical journal2017

Can Dexmedetomidine Improve Arterial Oxygenation and Intrapulmonary Shunt during One-lung Ventilation in Adults Undergoing Thoracic Surgery? A Meta-analysis of Randomized, Placebo-controlled Trials.

Su-Qin Huang, Jian Zhang, Xiong-Xin Zhang, Lu Liu, Yang Yu, Xian-Hui Kang, Xiao-Min Wu, Sheng-Mei Zhu

Registry-linked trialOpen access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Chinese medical journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04932746 (The Effect of Dexmedetomidine on Oxygen and Intrapulmonary Shunt During One Lung Ventilation in Pediatric Surgery), which is not on this map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
3.5field-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.

NCT04932746 nacompletednot on this mapstarted 2021, after this paper: background citation

The Effect of Dexmedetomidine on Oxygen and Intrapulmonary Shunt During One Lung Ventilation in Pediatric Surgery: Randomized Controlled Trial

TypeinterventionalSponsorDamascus UniversityRan2021 to 2023Enrolled110ConditionsOne Lung Ventilation OLV, Esophageal Atresia, Hydrocystoma, PneumonectomyArmsDexmedetomidine, Placebo
3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Dexmedetomidine Dose-Dependent Modulation of Lung Function and AQP1 Expression During One-Lung Ventilation in Adults Undergoing Thoracoscopic Surgery.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Trial
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  5. [Effects ofNan fang yi ke da xue xue bao = Journal of Southern Medical University · 2024
    Trial
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  12. Combining OJournal of critical care medicine (Universitatea de Medicina si Farmacie din Targu-Mures) · 2024
    Review
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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.

Su-Qin HuangDepartment of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China.
Jian ZhangDepartment of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China.
Xiong-Xin ZhangDepartment of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China.
Lu LiuDepartment of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China.
Yang YuDepartment of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China.
Xian-Hui KangDepartment of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China.
Xiao-Min WuDepartment of Anesthesiology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, China.
Sheng-Mei ZhuDepartment of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China.
Zhejiang University · CNZhejiang Provincial People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOne-lung ventilation (OLV) is a common ventilation technology during thoracic surgery that can cause serious clinical problems. We aimed to conduct a meta-analysis to compare oxygenation and intrapulmonary shunt during OLV in adults undergoing thoracic surgery with dexmedetomidine (Dex) versus placebo to assess the influence and safety of using Dex.

methodsRandomized controlled trials comparing lung protection in patients who underwent thoracic surgery with Dex or a placebo were retrieved from PubMed, EMBASE, MEDLINE, Cochrane Library, and China CNKI database. The following information was extracted from the paper: arterial oxygen partial pressure (PaO2), PaO2/inspired oxygen concentration (PaO2/FiO2, oxygenation index [OI]), intrapulmonary shunt (calculated as Qs/Qt), mean arterial pressure (MAP), heart rate (HR), tumor necrosis factor-α (TNF-α), interleukin (IL)-6, superoxide dismutase (SOD), and malondialdehyde (MDA).

resultsFourteen randomized controlled trials were included containing a total of 625 patients. Compared with placebo group, Dex significantly increased PaO2/FiO2(standard mean difference [SMD] = 0.98, 95% confidence interval [CI] [0.72, 1.23], P < 0.00001). Besides, Qs/Qt (SMD= -1.22, 95% CI [-2.20, -0.23], P = 0.020), HR (SMD= -0.69, 95% CI [-1.20, 0.17], P = 0.009), MAP (SMD= -0.44, 95% CI [-0.84, 0.04], P = 0.030), the concentrations of TNF-α (SMD = -1.55, 95% CI [-2.16, -0.95], P <0.001), and IL-6 (SMD = -1.53, 95% CI [-2.37, -0.70], P = 0.0003) were decreased in the treated group, when compared to placebo group. No significant difference was found in MDA (SMD = -1.14, 95% CI [-3.48, 1.20], P = 0.340) and SOD (SMD = 0.41, 95% CI [-0.29, 1.10], P = 0.250) between the Dex group and the placebo group. Funnel plots did not detect any significant publication bias.

conclusionsDex may improve OI and reduce intrapulmonary shunt during OLV in adults undergoing thoracic surgery. However, this conclusion might be weakened by the limited number of pooled studies and patients.

Indexed as

Blood Gas AnalysisDexmedetomidineHumansInterleukin-6MalondialdehydeOne-Lung VentilationRandomized Controlled Trials as TopicSuperoxide DismutaseThoracic SurgeryTumor Necrosis Factor-alphaDexmedetomidineInterleukin-6MalondialdehydeSuperoxide DismutaseTumor Necrosis Factor-alpha

Identifiers

PMID28685722
PMCPMC5520559
OpenAlexW2733270017

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.