Trial reportMedicine2015
Oscillating Positive Expiratory Pressure on Respiratory Resistance in Chronic Obstructive Pulmonary Disease With a Small Amount of Secretion: A Randomized Clinical Trial.
Trial report in Medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 11 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.
Acute Effects of a Flutter Device on Airways Resistance in Chronic Obstructive Pulmonary Disease (COPD)
Comparison Of Active Cycle Of Breathing Technique And Breathing Exercises On Oxygen Saturation And Pulmonary Function Test In Post ICU COVID-19 Patients
Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.
- Oscillating Positive Expiratory Pressure (OPEP) Therapy in Bronchiectasis and Chronic Obstructive Pulmonary Disease (COPD): A Narrative Review of Clinical Studies.Pulmonary therapy · 2026Pooled it
- Short-Term Effect of Intermittent Intrapulmonary Deflation on Air Trapping in Patients With COPD.Respiratory care · 2023Trial
- Trial
- Nursing Process Related to the Nursing Focus "Airway Clearance": A Scoping Review.Nursing reports (Pavia, Italy) · 2024Article
- Impact of AerobikaFrontiers in medicine · 2023Article
- Article
- Comparative evaluation of expiratory airflow limitation between patients with COPD and BE using IOS.Scientific reports · 2021Article
- Article
- Exercise and Cystic Fibrosis.Advances in experimental medicine and biology · 2020Review
- Effects of combination therapy indacaterol/glycopyrronium versus tiotropium on moderate to severe COPD: evaluation of impulse oscillometry and exacerbation rate.Multidisciplinary respiratory medicine · 2017Article
- Adjuncts for sputum clearance in COPD: clinical consensus versus actual use.BMJ open respiratory research · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
This study aims to evaluate the acute effects of an oscillating positive expiratory pressure device (flutter) on airways resistance in patients with chronic obstructive pulmonary disease (COPD).Randomized crossover study: 15 COPD outpatients from Asthma Lab-Royal Brompton Hospital underwent spirometry, impulse oscillometry (IOS) for respiratory resistance (R) and reactance (X), and fraction exhaled nitric oxide (FeNO) measures.Thirty minutes of flutter exercises: a "flutter-sham" procedure was used as a control, and airway responses after a short-acting bronchodilator were also assessed.Respiratory system resistance (R): in COPD patients an increase in X5insp (-0.21 to -0.33 kPa/L/s) and Fres (24.95 to 26.16 Hz) occurred immediately after flutter exercises without bronchodilator. Following 20 min of rest, a decrease in the R5, ΔR5, R20, X5, and Ax was observed, with R5, R20, and X5 values lower than baseline, with a moderate effect size; there were no changes in FeNO levels or spirometry.The use of flutter can decrease the respiratory system resistance and reactance and expiratory flow limitation in stable COPD patients with small amounts of secretions.
Indexed as
Identifiers
What OpenQuestion holds
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.