Evidence map›Paper›PMID 39905326›Full record

Trial reportBMC anesthesiology2025

Effects of the disconnection technique and preemptive one-lung ventilation on lung collapse during one-lung ventilation in thoracoscopic surgery.

Hongru Zhang, Silin Xiang, Longyong Mei, Yonggeng Feng, Han She, Yi Hu, Li Wang

Abstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in BMC anesthesiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Review
  2. Review
  3. 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

7 authors.

Hongru Zhang *Department of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, China.
Silin Xiang *Department of Anesthesiology, Chongqing General Hospital, Chongqing University, Chongqing, 401147, China.
Longyong MeiDepartment of Thoracic, Daping Hospital, Army Medical University, Chongqing, China.
Yonggeng FengDepartment of Thoracic, Daping Hospital, Army Medical University, Chongqing, China.
Han SheDepartment of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, China.
Yi HuDepartment of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, China. huyi921@sina.com.
Li WangDepartment of Anesthesiology, Daping Hospital, Army Medical University, Chongqing, 400042, China. wl13996288604@tmmu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDuring thoracoscopic surgery with one-lung ventilation (OLV), achieving lung collapse is critical for providing surgeons with a good visibility of the surgical field and to minimise tissue compression. The aim of this study was to evaluate the efficacy of both the disconnection technique and preemptive one-lung ventilation in facilitating lung collapse during thoracoscopic surgery using a double-lumen tube (DLT).

methodsNinety-seven eligible patients were included and randomly divided into three groups. CONTROL GROUP: OLV was initiated when the surgeon started the skin incision and exposed the operative side. Disconnection group: OLV was started two minutes after the DLT was disconnected, this procedure started when the surgeon performed the skin incision. Preemptive group: OLV was initiated promptly after the patient was turned to the lateral position, and the bronchial tube port was clamped on the operative side at the lateral position for no less than 6 min until the pleura was opened. The primary outcome was the time to achieve satisfactory lung collapse, defined as the time required to reach a lung collapse score of eight points. The secondary outcomes included the lung collapse scores at different time points, Pleural opening times, OLV times, blood gas analysis results and the incidence of hypoxemia and pulmonary complications. The hypothesis formulated before data collection was that both the disconnection technique and preemptive OLV decrease the time to satisfactory lung collapse.

resultsCompared to the control group, both the disconnection and the preemptive group had a shorter time to satisfactory lung collapse (P < 0.001), lung collapse in the preemptive group was superior to that in the disconnection group at one minute (P = 0.045), no significant differences were found among the three groups in terms of other outcomes.

conclusionBoth the disconnection technique and preemptive OLV decrease the time to satisfactory lung collapse. However, preemptive OLV results in superior early lung collapse and is therefore may more suitable for clinical application than the disconnection technique.

trial registrationThe protocol of this study was registered at www. chictr. org. cn (29/07/2022, ChiCTR2200062199).

Indexed as

One-Lung VentilationPulmonary AtelectasisThoracoscopyAdultAgedFemaleHumansMaleMiddle AgedDisconnection ventilationLung collapseOne-lung ventilationPreemptive one-lung ventilation

Identifiers

PMID39905326
PMCPMC11792307

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.