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Titolo:
Assessment of an infant whole-body plethysmograph using an infant lung function model
Autore:
Reinmann, B; Stocks, J; Frey, U;
Indirizzi:
Univ Hosp Bern, Inselspital, Dept Paediat, CH-3010 Bern, Switzerland Univ Hosp Bern Bern Switzerland CH-3010 ediat, CH-3010 Bern, Switzerland Inst Child Hlth, Portex Anaesthesia Intens Care & Resp Med Unit, London, England Inst Child Hlth London England ns Care & Resp Med Unit, London, England
Titolo Testata:
EUROPEAN RESPIRATORY JOURNAL
fascicolo: 4, volume: 17, anno: 2001,
pagine: 765 - 772
SICI:
0903-1936(200104)17:4<765:AOAIWP>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
AIRWAY-RESISTANCE MEASUREMENTS; FREQUENCY-RESPONSE; THERMAL ARTIFACTS; VOLUME;
Keywords:
infant; respiratory function test; respiratory mechanics; plethysmography; whole body; standardization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Frey, U Univ Hosp Bern, Inselspital, Dept Paediat, CH-3010 Bern, Switzerland Univ Hosp Bern Bern Switzerland CH-3010 H-3010 Bern, Switzerland
Citazione:
B. Reinmann et al., "Assessment of an infant whole-body plethysmograph using an infant lung function model", EUR RESP J, 17(4), 2001, pp. 765-772

Abstract

In order to facilitate international multicentre studies and improve the quality control of infant pulmonary function measurements, the European Respiratory Society-American Thoracic Society Task Force for infant lung function testing has recently developed specifications for standardized infant lung function equipment and software. A mechanical infant lung model analoguehas been developed to assess whether infant lung function equipment is able to meet these requirements. However, the practical testing of infant lungfunction equipment using such models is highly complex because of the needto use very small pressure and flow changes, and the numerous potentially confounding factors associated with both the design of the device and the testing procedure. The aim of this study was to determine whether the infant lung model is capable of assessing the overall function of an whole-body infant- plethysmopraph, using the only infant plethysmograph that was commercially available at the time as an example. The mechanical characteristics of the model such as vibrations or noise did not disturb the delicate plethysmographic measurements and thereby allowed a reliable assessment of the system, A series of tests revealed that the plethysmograph was able to measure airway resistance 1-3.5 kPa.L-1.s with an accuracy of +/-2.5% and Lung volumes 75-300 mL with an accuracy of +2.5%,under in vitro conditions. To conclude, the infant lung model is a useful means of assessing the overall in vitro performance of infant whole-body plethysmographs, but thermal,mechanical and frequency response characteristics of such a device must betaken into account when interpreting the results of such assessments.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 15:51:23