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document
Lung function measurement in general practice : a comparison of the Escort spirometer with the Micromed turbine spirometer and the mini-Wright peak flow meter . It is important that new types of spirometer for widespread clinical use are pragmatically evaluated in primary care . This study compared measurements taken by a new portable Fleisch pneumotachograph spirometer ( known as the Escort ) with those of the commonly used mini-Wright peak flow meter and the Micromed Pocket turbine spirometer . A pragmatic study was conducted in two phases during routine surgeries at Aldermoor Health Centre , Southampton . Phase I compared the new spirometer with the mini-Wright peak flow meter and Phase 2 compared the new spirometer and the turbine spirometer . One hundred patients aged 5-88 years ( 56 patients with a history of chronic respiratory complaints and 44 patients without ) entered Phase 1 , and 100 patients aged 6-82 years ( 62 patients with a history of chronic respiratory complaints and 38 patients without ) entered Phase 2 . Each patient contributed only once to each phase , but some entered both phases on separate occasions . Ninety-five percent limits of agreement ( mean +/- SD ) were wide for all comparisons . Graphical plots revealed trends towards higher Escort values as mean values rose compared with both mini-Wright and turbine readings for peak expiratory flow rate and forced expiratory volume in one second . Possible over-reading of peak expiratory flow rate with the mini-Wright meter at low mean values was also seen . Readings taken with these different types of meter can not be interchanged with confidence in clinical practice . The clinical significance of the theoretically more accurate measures of lung function produced with the new meter , and indeed of spirometry itself , needs further investigation .
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Intervention_Pharmacological
Escort spirometer
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Intervention_Pharmacological
Micromed turbine spirometer
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Intervention_Pharmacological
mini-Wright peak flow meter
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Intervention_Pharmacological
spirometer
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Intervention_Physical
new portable Fleisch
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Intervention_Pharmacological
pneumotachograph spirometer
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Intervention_Pharmacological
mini-Wright peak flow meter
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Intervention_Pharmacological
Micromed Pocket turbine spirometer
86563
Intervention_Pharmacological
spirometer
86564
Intervention_Physical
mini-Wright peak flow meter
86565
Intervention_Pharmacological
spirometer
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Intervention_Pharmacological
turbine spirometer .
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Intervention_Physical
mini-Wright meter
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Outcome_Physical
Escort values
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Outcome_Physical
peak expiratory flow rate and forced expiratory volume in one second .
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Outcome_Physical
peak expiratory flow rate
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Outcome_Physical
measures of lung function
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Participant_Sample-size
One hundred
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Participant_Age
5-88 years
86574
Participant_Sample-size
56 patients
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Participant_Condition
chronic respiratory complaints
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Participant_Sample-size
44 patients
86577
Participant_Sample-size
100 patients
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Participant_Age
6-82 years
86579
Participant_Sample-size
62 patients
86580
Participant_Condition
chronic respiratory complaints
86581
Participant_Sample-size
38 patients