[Comparison of values for peak expiratory flow (PEF) measured with various devices in children]

Area of Science:

• Pediatric Pulmonology
• Respiratory Physiology

Background:

• Peak expiratory flow (PEF) is a key indicator of airway narrowing.
• Accurate PEF measurement is crucial for assessing respiratory health in children.

Purpose of the Study:

• To compare Peak Expiratory Flow (PEF) values obtained from two different devices: the Vitalograph Pulmonary Monitor and the Clement-Clarke mini Wright.
• To evaluate the reliability and consistency of these devices in preschool-aged children.

Main Methods:

• A study involving 290 healthy preschool children (4-6 years old; 142 girls, 148 boys).
• Each child performed at least 5 PEF measurements using both the Vitalograph Pulmonary Monitor and the Clement-Clarke mini Wright.
• The highest PEF value from each device was used for statistical analysis.

Main Results:

• Statistically significant differences in PEF values were observed between the two devices.
• The Clement-Clarke mini Wright device recorded significantly higher PEF values in five- and six-year-old girls.
• The mini Wright device also showed significantly higher PEF values in four- and five-year-old boys compared to the Pulmonary Monitor.

Conclusions:

• The choice of PEF measuring device can influence results in preschool children.
• The Clement-Clarke mini Wright device may provide higher readings in certain pediatric age groups.
• Further research is needed to understand the clinical implications of these device-specific differences in PEF measurements.