SynthesisCanadian respiratory journal2023
High-Flow Nasal Oxygen versus Noninvasive Ventilation in Acute Exacerbation of Chronic Obstructive Pulmonary Disease Patients: A Meta-Analysis of Randomized Controlled Trials.
Synthesis in Canadian respiratory journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Comparison of clinical outcomes between high-flow nasal cannula and non-invasive ventilation in acute exacerbation of COPD: a meta-analysis of randomized controlled trials.BMC pulmonary medicine · 2025Pooled it
- Enhancing Respiratory Support in COPD Patients with Nasal High Flow Using an Asymmetrical Cannula Interface: A Randomized Cross-Over Study.International journal of chronic obstructive pulmonary disease · 2026Trial
- High-velocity nasal insufflation versus noninvasive positive pressure ventilation for moderate acute exacerbation of chronic obstructive pulmonary disease in the emergency department: A randomized clinical trial.Academic emergency medicine : official journal of the Society for Academic Emergency Medicine · 2025Trial
- The Efficacy of High-Flow Nasal Cannula (HFNC) Treatment in Patients with Chronic Type II Respiratory Failure Secondary to COPD.Journal of clinical medicine · 2026Article
- High-flow nasal cannula versus noninvasive ventilation in stabilized hypercapnic exacerbation: a physiological crossover trial.Annals of intensive care · 2026Article
- High flow nasal therapy versus noninvasive ventilation for AECOPD with acute hypercapnic respiratory failure: a meta-analysis of randomized controlled trials.Annals of intensive care · 2025Review
- High-flow nasal cannula oxygen therapy versus noninvasive ventilation for elderly chronic obstructive pulmonary disease patients after extubation: a noninferior randomized controlled trial protocol.BMC pulmonary medicine · 2024Article
- Effect of high-flow nasal cannula at different flow rates on diaphragmatic function in subjects recovering from an acute exacerbation of COPD: a physiological prospective pilot study.Journal of anesthesia, analgesia and critical care · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: High-flow nasal cannula (HFNC) can be used in stable chronic obstructive pulmonary disease (COPD) patients, but the effect of HFNC on clinical outcomes in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD) is still uncertain. Methods: We searched electronic literature databases for randomized controlled trials (RCTs) comparing HFNC with noninvasive ventilation (NIV) in hypercapnic patients with AECOPD. The primary endpoint of this meta-analysis was PaCO Results: We included 7 RCTs with a total of 481 patients. There were no significant differences on measures of PaCO Conclusion: NIV was noninferior to HFNC in decreasing PaCO
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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.