Peak Expiratory Flow Rate: A Useful Tool for Early Detection of Airway Obstruction in School Children

Mehta, Bharati; Garg, Kunal; Ambwani, Sneha; Bhandari, Bharti; Bhagat, Om Lata

doi:10.2174/1874220301603010159

Cited by 9 publications

(6 citation statements)

References 13 publications

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“…However, PEF measurements are affected by anthropometric parameters such as age, height, weight, gender, air quality, climate (temperature and humidity), atmospheric air pressure (wind and altitude) and nutritional status. [14][15][16] PEF rates were measured in the children before and after pesticide application with a Mini-Wright Peak Flow Meter (Clement Clarke International, UK) in a closed environment (village rooms, schools and reeve rooms). Post-pesticide PEF measurements were conducted on the second day of pesticide application.…”

Section: Applied Pesticidesmentioning

confidence: 99%

The relationship between particulate matter and childhood respiratory complaints and peak expiratory flows in Harran agricultural area

Ali-Sak¹,

Kurtuluş²,

Ocaklı³

et al. 2021

Turk J Pediatr

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Background. In recent years, many studies have evaluated the increasing incidence of asthma and chronic respiratory diseases among children living close to rural areas with pesticide application. Pesticide exposure in 266 children (126 girls and 140 boys) in Şanlıurfa, a cotton-producing province in Turkey, was explored in this work. Four different villages spread over 40 km2 were included. Methods. Measurements of peak expiratory flow (PEF) in 266 children were conducted in late June, before intensive pesticide applications in the cotton-producing fields. The measurements were repeated for 72 of 266 children after pesticide application in late August. PEF, particulate matter with diameter less than 2.5 μm (PM 2.5 ), particulate matter with diameter less than 10 μm (PM 10 ), temperature, humidity, and wind speed were measured. Results. After pesticide application, mean PM 2.5 and PM 10 values were significantly increased compared to before pesticide application (p < 0.001 for both parameters). After pesticide exposure, nasal discharge, sneezing, burning and itching in the eyes, cough, sputum production, wheezing, shortness of breath and chest tightness were significantly increased (p < 0.001). The mean PEF value was demonstrated to decrease significantly after pesticide application (p < 0.001). Moreover, significant negative correlations were noted between PEF and PM 10 and between PEF and PM 2.5 (p < 0.001). Conclusions. Intensive pesticide application causes respiratory dysfunction and increased respiratory complaints in children living near the affected agricultural areas, and impacts quality of life adversely. The results of this work can be used to develop an early warning system and methods to prevent respiratory disorders in children residing in the study area.

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Section: Applied Pesticidesmentioning

confidence: 99%

The relationship between particulate matter and childhood respiratory complaints and peak expiratory flows in Harran agricultural area

Ali-Sak¹,

Kurtuluş²,

Ocaklı³

et al. 2021

Turk J Pediatr

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“…It is measured with a peak flow meter, a simple, portable handheld device used to monitor a person's ability to eject air out through the bronchi. Thus, it can explain the level of obstruction in the airways [7] [8]. Home care includes self-monitoring using a peak expiratory flow (PEF) tool and a written asthma action plan [9].…”

Section: Introductionmentioning

confidence: 99%

Implementation of a Microcontroller Arduino for Portable Peak Expiratory Flow Rate to Examine the Lung Health

Azzahra¹,

Nugraha²,

Hamzah³

et al. 2022

International Journal of Advanced Health Science and Technology

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A peak flow meter will measure the ability to push air out of the lungs; the lungs are one of the body's most vital organs. The commonly used method is to deploy a peak flow meter, which uses mechanical systems. This mechanical system is prone to a high error rate of reading, and as a result, a more accurate and reliable means becomes inevitable. This paper describes the design and implementation of a micro-controller-based portable peak flow meter, which can be used to provide accurate data for the diagnosis of asthma, bronchitis, and emphysema. In the heart of the system are the programmable Mega Arduino microcontroller and a device called MPX5100GP sensor, which has a pressure range of 0-100 Kpa to detect a patient breath. The device was equipped with a display facility, which uses Nextion touch TFT output to display related tests and examinations. There is also a provision to store the results data using SD Card, while a printer prints the test results for further diagnostic purposes. An experimental setup in the laboratory shows that the designed micro-controller-based PFM shows that the error rate was between 0.50 % and 4.21 % compared with the mechanical-based peak flow meter. The application of micro-controller-based peak flow meters also allows real-time and remote monitoring of peak flow parameters. The evolution of modern technology has made the possibility of developing a micro-controller based portable, peak flow meters, which can be used to measure the data involved in the diagnosis of lung-related diseases more accurately.

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“…In fact, MEF is obtained by means of a maximum forced expiration (in the least amount of time possible) after a maximum inhalation. For this, a simple portable device is required that allows for controlling the capacity to expel air through the bronchial tubes [ 2 ] and to register in L/min.…”

Section: Introductionmentioning

confidence: 99%

Maximum Expiratory Flow of Children and Adolescents Living at Moderate Altitudes: Proposed Reference Values

et al. 2021

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(1) Background: Spirometry is useful for diagnosing and monitoring many respiratory diseases. The objectives were: (a) compare maximum expiratory flow (MEF) values with those from international studies, (b) determine if MEF should be evaluated by chronological age and/or maturity, (c) develop reference norms for children, and adolescents. (2) Methods: A cross-sectional study was designed with 3900 subjects ages 6.0 and 17.9 years old. Weight, standing height, sitting height, and MEF were measured. Length of the lower limbs, body mass index (BMI), and age of peak height velocity growth (APHV) were calculated. (3) Results: Values for the curves (p50) for females of all ages from Spain and Italy were higher (92 to 382 (L/min)) than those for females from Arequipa (Peru). Curve values for males from Spain and Italy were greater [70 to 125 (L/min)] than the males studied. MEF values were similar to those of Chilean students ages 6 to 11. However, from 12 to 17 years old, values were lower in males (25 to 55 (L/min)) and in females (23.5 to 90 (L/min)). Correlations between chronological age and MEF in males were from (r = 0.68, R2 = 0.39) and in females from (r = 0.46, R2 = 0.21). Correlations between maturity (APHV) and MEF for males were from (r = 0.66, R2 = 0.44) and for females (r = 0.51, R2 = 0.26). Percentiles were calculated for chronological age and APHV. Conclusion: Differences occurred in MEF when compared with other geographical regions of the world. We determined that maturity may be a more effective indicator for analyzing MEF. Reference values were generated using chronological age and maturity.

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Peak Expiratory Flow Rate: A Useful Tool for Early Detection of Airway Obstruction in School Children

Cited by 9 publications

References 13 publications

The relationship between particulate matter and childhood respiratory complaints and peak expiratory flows in Harran agricultural area

The relationship between particulate matter and childhood respiratory complaints and peak expiratory flows in Harran agricultural area

Implementation of a Microcontroller Arduino for Portable Peak Expiratory Flow Rate to Examine the Lung Health

Maximum Expiratory Flow of Children and Adolescents Living at Moderate Altitudes: Proposed Reference Values

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