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Sphygmomanometry in the pediatric patient
Insights
Accurate pediatric blood pressure measurement is challenging. Ultrasonic Doppler devices with wider cuffs improve systolic pressure accuracy in children, but diastolic pressure measurement remains difficult.
Area of Science:
- Pediatric cardiology
- Medical instrumentation
- Biomedical engineering
Background:
- Indirect blood pressure measurement in children is frequently inaccurate or impossible.
- Existing methods often yield unreliable pediatric blood pressure readings.
Purpose of the Study:
- To identify accurate methods for indirect blood pressure measurement in the pediatric population.
- To evaluate the efficacy of ultrasonic Doppler devices and cuff size in improving measurement accuracy.
Main Methods:
- Utilized a properly designed and sized occluding cuff for upper extremity arterial systolic pressure measurement.
- Employed an ultrasonic Doppler device to detect the first Korotkoff sound.
- Compared ultrasonic Doppler devices with stethoscopes for Korotkoff sound detection.
- Investigated the effect of wider-than-usual occluding cuffs on measurement error.
Main Results:
- Accurate measurement of upper extremity arterial systolic pressure is achievable in children.
- Ultrasonic Doppler devices are superior to stethoscopes for detecting the first Korotkoff sound.
- Using wider occluding cuffs minimizes measurement error.
Conclusions:
- Ultrasonic Doppler technology and appropriate cuff sizing enhance pediatric systolic blood pressure accuracy.
- A reliable method for accurately measuring pediatric end-diastolic pressure has not yet been established.
Abstract:
The indirect measurement of blood pressure in the pediatric population is often difficult or impossible to perform and when values are obtained, they are often unreliable or inaccurate. An accurate measurement of arterial systolic pressure in the upper extremity is obtainable with a properly designed and sized occluding cuff and an ultrasonic device to detect the first Korotoff sound. For the detection of the first Korotkoff sound ultrasonic Doppler devices are superior to the stethoscope. When wider occluding cuffs than usual are applied to the upper extremity, the error of measurement is minimized. A method for accurately measuring end diastolic pressure has yet to be described despite assertions to the contrary.