Med Biol Eng Comput - Monitoring respiration in wheezy preschool children by pulse oximetry plethysmogram analysis.

Tópicos

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Resumo

The aim of this study was to investigate whether respiratory information can be derived from pulse oximetry plethysmogram (pleth) recordings in acutely wheezy preschool children. A digital pulse oximeter was connected via 'Bluetooth' to a notebook computer in order to acquire pleth data. Low pass filtering and frequency analysis were used to derive respiratory rate from the pleth trace; the ratio of heart rate to respiratory rate (HR/RR) was also calculated. Recordings were obtained during acute wheezy episodes in 18 children of median age 31 months and follow-up recordings from 16 of the children were obtained when they were wheeze-free. For the acutely wheezy children, frequency analysis of the pleth waveform was within 10 breaths/min of clinical assessment in 25 of 29 recordings in 15 children. For the follow-up measurements, frequency analysis of the pleth waveform showed similarly good agreement in recordings on 15 of the 16 children. Respiratory rate was higher (p < 0.001), and HR/RR ratio was lower (p = 0.03) during acute wheeze than at follow-up. This study suggests that respiratory rate can be derived from pleth traces in wheezy preschool children.

Resumo Limpo

aim studi investig whether respiratori inform can deriv puls oximetri plethysmogram pleth record acut wheezi preschool children digit puls oximet connect via bluetooth notebook comput order acquir pleth data low pass filter frequenc analysi use deriv respiratori rate pleth trace ratio heart rate respiratori rate hrrr also calcul record obtain acut wheezi episod children median age month followup record children obtain wheezefre acut wheezi children frequenc analysi pleth waveform within breathsmin clinic assess record children followup measur frequenc analysi pleth waveform show similar good agreement record children respiratori rate higher p hrrr ratio lower p acut wheez followup studi suggest respiratori rate can deriv pleth trace wheezi preschool children

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