Trial reportJournal of applied physiology (Bethesda, Md. : 1985)2015
Pneumothorax effects on pulmonary acoustic transmission.
Trial report in Journal of applied physiology (Bethesda, Md. : 1985), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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
10 citing papers in PubMed, 26 citations in OpenAlex.
- Article
- Sound-guided assessment and localization of pulmonary air leak.Bioengineering & translational medicine · 2023Article
- Body Acoustics for the Non-Invasive Diagnosis of Medical Conditions.Bioengineering (Basel, Switzerland) · 2022Review
- Hemopneumothorax detection through the process of artificial evolution - a feasibility study.Military Medical Research · 2021Article
- Sound transmission in human thorax through airway insonification: an experimental and computational study with diagnostic applications.Medical & biological engineering & computing · 2020Article
- Acoustic Methods for Pulmonary Diagnosis.IEEE reviews in biomedical engineering · 2019Review
- Tabla: A Proof-of-Concept Auscultatory Percussion Device for Low-Cost Pneumonia Detection.Sensors (Basel, Switzerland) · 2018Article
- Geometric features of pig airways using computed tomography.Physiological reports · 2016Article
- Generation of Pig Airways using Rules Developed from the Measurements of Physical Airways.Journal of bioengineering & biomedical science · 2016Article
- Sound transmission in porcine thorax through airway insonification.Medical & biological engineering & computing · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
Pneumothorax (PTX) is an abnormal accumulation of air between the lung and the chest wall. It is a relatively common and potentially life-threatening condition encountered in patients who are critically ill or have experienced trauma. Auscultatory signs of PTX include decreased breath sounds during the physical examination. The objective of this exploratory study was to investigate the changes in sound transmission in the thorax due to PTX in humans. Nineteen human subjects who underwent video-assisted thoracic surgery, during which lung collapse is a normal part of the surgery, participated in the study. After subjects were intubated and mechanically ventilated, sounds were introduced into their airways via an endotracheal tube. Sounds were then measured over the chest surface before and after lung collapse. PTX caused small changes in acoustic transmission for frequencies below 400 Hz. A larger decrease in sound transmission was observed from 400 to 600 Hz, possibly due to the stronger acoustic transmission blocking of the pleural air. At frequencies above 1 kHz, the sound waves became weaker and so did their changes with PTX. The study elucidated some of the possible mechanisms of sound propagation changes with PTX. Sound transmission measurement was able to distinguish between baseline and PTX states in this small patient group. Future studies are needed to evaluate this technique in a wider population.
Indexed as
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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.