A comparison of peak expiratory flow measured from forced vital capacity and peak flow meter manoeuvres in healthy volunteers

Objective This study aims to compare peak expiratory flow mea-surement by peak flow meter and electronic spirometer in healthyelementary school children.Methods This was a cross-sectional study performed in an el-ementary school near Cipto Mangunkusumo hospital (SDNPegangsaan 01). The study group consisted of healthy childrenaged 6-12 year old. Data regarding identity and history of illnesswas taken in each subject. Routine physical examination was per-formed and recorded. Each subject performed lung function testsby means of electronic spirometer AS-7 as well as by Mini-Wrightpeak flow meter. The subject should perform a minimum of threemaneuvers for each method where only the best result was re-corded. Method comparison test to assess agreement betweentwo methods was employed in this study.Results There were 10 males and 15 females enrolled in this study.None of the subjects currently have any respiratory symptoms andsigns. This study found that the mean peak expiratory flow (PEF) byspirometer was 226.8±73.13 L/min while by peak flow meter was223.0±45.05. Mean difference between spirometer and peak flowmeter measurements is 6.2 with standard deviation of 60.82. Thesevalues resulted in limits of agreement of -115.44 to +127.84 L/min.Conclusions This study finds disagreement between electronicspirometer and Mini-Wright peak flow meter in measuring peakexpiratory flow, therefore these two devices cannot be usedinterchangeably. Mini-Wright peak flow meter still has a role inhome monitoring, but the physician should interpret the resultscarefully.

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In-brace alterations of pulmonary functions in adolescents wearing a brace for idiopathic scoliosis

Prosthetics and Orthotics International ◽

10.1177/0309364619839856 ◽

2019 ◽

Vol 43 (4) ◽

pp. 434-439 ◽

Cited By ~ 3

Author(s):

Gozde Yagci ◽

Gokhan Demirkiran ◽

Yavuz Yakut

Keyword(s):

Idiopathic Scoliosis ◽

Pulmonary Function ◽

Peak Expiratory Flow ◽

Forced Vital Capacity ◽

Respiratory Muscle ◽

Vital Capacity ◽

Forced Expiratory Volume ◽

Pulmonary Functions ◽

Significant Difference ◽

Expiratory Flow

Background:Despite the common use of braces to prevent curve progression in idiopathic scoliosis, their functional effects on respiratory mechanics have not been widely studied.Objective:The objective was to determine the effects of bracing on pulmonary function in idiopathic scoliosis.Methods:A total of 27 adolescents with a mean age of 14.5 ± 1.5 years and idiopathic scoliosis were included in the study. Pulmonary function evaluation included vital capacity, forced expiratory volume, forced vital capacity, maximum ventilator volume, peak expiratory flow, and respiratory muscle strengths, measured with a spirometer, and patient-reported degree of dyspnea. The tests were performed once prior to bracing and at 1 month after bracing (while the patients wore the brace).Results:Compared with the unbraced condition, vital capacity, forced expiratory volume, forced vital capacity, maximum ventilator volume, and peak expiratory flow values decreased and dyspnea increased in the braced condition. Respiratory muscle strength was under the norm in both unbraced and braced conditions, while no significant difference was found for these parameters between the two conditions.Conclusion:The spinal brace for idiopathic scoliosis tended to reduce pulmonary functions and increase dyspnea symptoms (when wearing a brace) in this study. Special attention should be paid in-brace effects on pulmonary functions in idiopathic scoliosis.Clinical relevanceBracing seems to mimic restrictive pulmonary disease, although there is no actual disease when the brace is removed. This study suggests that bracing may result in a deterioration of pulmonary function when adolescents with idiopathic scoliosis are wearing a brace.

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Assessment of Peak Expiratory Flow Rate in Building Construction Workers in Maharashtra

International Journal of Health Sciences and Research ◽

10.52403/ijhsr.20210658 ◽

2021 ◽

Vol 11 (6) ◽

pp. 388-391

Author(s):

Aditi Tanna ◽

Sambhaji B. Gunjal

Keyword(s):

Peak Expiratory Flow ◽

Flow Rate ◽

Peak Expiratory Flow Rate ◽

Peak Flow ◽

Building Construction ◽

Construction Workers ◽

Dust Particles ◽

Construction Sites ◽

Flow Meter ◽

Expiratory Flow

Background: In this era of globalization one of the growing industries is the construction industry and there are various occupational problems faced by the workers especially in Asian countries mostly in India; the problems are related to both physical and mental health. All the construction sites generate high concentration of dust particles from cement, silica, asbestos, concrete, wood, stand and stand that causes respiratory problems in the workers. PEFR is the maximum air that is generated after forceful expiration, after full lung inspiration. So if there is any accumulation of dust particles the PEFR decreases as the elasticity of lungs to recoil is distrusted due to the lodged particles. Material and Method: A descriptive observation study was carried out on 50 building construction workers. The purpose of the study was explained and informed consent was taken. The PEFR was measured using peak expiratory flow meter. The data was analyzed using standard statistical software. Result: The procedure of using peak flow meter that was carried out for 3 times and the highest value from the three was considered as peak flow rate, using statistical method mean and standard deviation were calculated. The mean of Peak Expiratory Flow Rate is 321.1 L/min. Conclusion: This study concluded that the peak expiratory flow rate is reduced in building construction workers those who are working for than 2 years on the construction sites. Key words: construction workers, occupation diseases, PEFR, peak expiratory flow meter.

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Home-Monitoring of Peak Expiratory Flow Rate using Mini-Wright Peak Flow Meter in Diagnosis of Asthma1

Journal of the Royal Society of Medicine ◽

10.1177/014107688007301009 ◽

1980 ◽

Vol 73 (10) ◽

pp. 731-733 ◽

Cited By ~ 13

Author(s):

John G Prior ◽

G M Cochrane

Keyword(s):

Peak Expiratory Flow ◽

Flow Rate ◽

Peak Expiratory Flow Rate ◽

Respiratory Symptoms ◽

Peak Flow ◽

Airflow Obstruction ◽

Home Monitoring ◽

Flow Meter ◽

Expiratory Flow

Home-monitoring of peak expiratory flow rate using the mini-Wright peak flow meter is a useful technique for determining whether or not unexplained respiratory symptoms are caused by asthma. It is of particular value when airflow obstruction cannot be demonstrated at the time of consultation.

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