The Flow-Volume-Measurement in Computer-Supported Lung Function Analysis

Author(s):  
Christoph Riemasch-Becker ◽  
Klaus Stosseck
2020 ◽  
Vol 6 (1) ◽  
pp. e000804
Author(s):  
Kerttu Toivo ◽  
Pekka Kannus ◽  
Sami Kokko ◽  
Lauri Alanko ◽  
Olli J Heinonen ◽  
...  

ObjectivesTo compare laboratory test results and lung function of adolescent organised sports participants (SP) with non-participants (NP).MethodsIn this cross-sectional study, laboratory tests (haemoglobin, iron status), and flow-volume spirometry were performed on SP youths (199 boys, 203 girls) and their NP peers (62 boys, 114 girls) aged 14–17.ResultsHaemoglobin concentration <120/130 g/L was found in 5.8% of SP and 5.1% NP (OR 1.20, 95% CI 0.54 to 2.68). Ferritin concentration below 15 µg/L was found in 22.7% of both SP and NP girls. Among boys ferritin <30 µg/L was found in 26.5% of SP and 30.2% of NP (OR 0.76, 95% CI 0.40 to 1.47). Among SP iron supplement use was reported by 3.5% of girls and 1.5% of boys. In flow-volume spirometry with bronchodilation test, 7.0% of SP and 6.4% of NP had asthma-like findings (OR 1.17, 95% CI 0.54 to 2.54); those using asthma medication, that is, 9.8% of SP and 5.2% of NP were excluded from the analysis.ConclusionsScreening for iron deficiency is recommended for symptomatic persons and persons engaging in sports. Lung function testing is recommended for symptomatic persons and persons participating in sports in which asthma is more prevalent.


Stroke ◽  
2000 ◽  
Vol 31 (6) ◽  
pp. 1342-1345 ◽  
Author(s):  
Stella S. Y. Ho ◽  
Constantine Metreweli

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Linnea Jarenbäck ◽  
Jaro Ankerst ◽  
Leif Bjermer ◽  
Ellen Tufvesson

Classification of COPD into different GOLD stages is based on forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) but has shown to be of limited value. The aim of the study was to relate spirometry values to more advanced measures of lung function in COPD patients compared to healthy smokers. The lung function of 65 COPD patients and 34 healthy smokers was investigated using flow-volume spirometry, body plethysmography, single breath helium dilution with CO-diffusion, and impulse oscillometry. All lung function parameters, measured by body plethysmography, CO-diffusion, and impulse oscillometry, were increasingly affected through increasing GOLD stage but did not correlate with FEV1within any GOLD stage. In contrast, they correlated fairly well with FVC%p, FEV1/FVC, and inspiratory capacity. Residual volume (RV) measured by body plethysmography increased through GOLD stages, while RV measured by helium dilution decreased. The difference between these RV provided valuable additional information and correlated with most other lung function parameters measured by body plethysmography and CO-diffusion. Airway resistance measured by body plethysmography and impulse oscillometry correlated within COPD stages. Different lung function parameters are of importance in COPD, and a thorough patient characterization is important to understand the disease.


1996 ◽  
Vol 9 (10) ◽  
pp. 2109-2115 ◽  
Author(s):  
S. Keman ◽  
B. Willemse ◽  
G.J. Wesseling ◽  
E. Kusters ◽  
P.J.A. Borm

2000 ◽  
Vol 32 (1) ◽  
pp. 204-205 ◽  
Author(s):  
R Ewert ◽  
R Wensel ◽  
J Müller ◽  
R Hetzer

2021 ◽  
Vol 30 (162) ◽  
pp. 210081
Author(s):  
Andrew Kouri ◽  
Ronald J. Dandurand ◽  
Omar S. Usmani ◽  
Chung-Wai Chow

175 years have elapsed since John Hutchinson introduced the world to his version of an apparatus that had been in development for nearly two centuries, the spirometer. Though he was not the first to build a device that sought to measure breathing and quantify the impact of disease and occupation on lung function, Hutchison coined the terms spirometer and vital capacity that are still in use today, securing his place in medical history. As Hutchinson envisioned, spirometry would become crucial to our growing knowledge of respiratory pathophysiology, from Tiffeneau and Pinelli's work on forced expiratory volumes, to Fry and Hyatt's description of the flow–volume curve. In the 20th century, standardization of spirometry further broadened its reach and prognostic potential. Today, spirometry is recognized as essential to respiratory disease diagnosis, management and research. However, controversy exists in some of its applications, uptake in primary care remains sub-optimal and there are concerns related to the way in which race is factored into interpretation. Moving forward, these failings must be addressed, and innovations like Internet-enabled portable spirometers may present novel opportunities. We must also consider the physiologic and practical limitations inherent to spirometry and further investigate complementary technologies such as respiratory oscillometry and other emerging technologies that assess lung function. Through an exploration of the storied history of spirometry, we can better contextualize its current landscape and appreciate the trends that have repeatedly arisen over time. This may help to improve our current use of spirometry and may allow us to anticipate the obstacles confronting emerging pulmonary function technologies.


Author(s):  
David G. Frazer ◽  
Ahmed M. Mahmoud ◽  
Ayman A. Abaza ◽  
W. T. Goldsmith ◽  
Jeremy B. Day ◽  
...  

CHEST Journal ◽  
2005 ◽  
Vol 128 (4) ◽  
pp. 187S
Author(s):  
Caroline Pesant ◽  
Miriam Santachi ◽  
Mario Geoffroy ◽  
Theophile Niyonsega ◽  
Mario E. Dumas ◽  
...  

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