End‐tidal Carbon Dioxide Measurements in Children with Acute Asthma

Guthrie, Bridgette D.; Adler, Mark; Powell, Elizabeth C.

doi:10.1197/j.aem.2007.08.007

Cited by 17 publications

(6 citation statements)

References 18 publications

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“…When evaluating the use of capnometry in asthma, a similar obstructive lung disease in children, the results were similar. Guthrie et al [24] measured EtCO 2 in children with acute asthma attack, and demonstrated that EtCO 2 values did not distinguish children with mild asthmatic disease from those with a more severe disease. It becomes evident that this type of measurement is not enough to assess clinical severity.…”

Section: Discussionmentioning

confidence: 99%

Is capnometry helpful in children with bronchiolitis?

Jacob

Bentur²,

Brik

et al. 2016

Respiratory Medicine

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Section: Discussionmentioning

confidence: 99%

Is capnometry helpful in children with bronchiolitis?

Jacob

Bentur²,

Brik

et al. 2016

Respiratory Medicine

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“…Since then, it's been clear that the capnogram can be used to track inflammatory states in cardiopulmonary illnesses. Guthrie et al ( 2007 ) used a microcap plus device (Oridion Capnograph, Israel) to measure EtCO 2 in 16 asthmatic patients and concluded that non-invasive EtCO 2 assessment at the bedside is possible in children with acute asthma. Nagurka et al ( 2014 ) researched the effects of extreme (low and high) EtCO 2 on 299 asthmatic patients.…”

Section: Introductionmentioning

confidence: 99%

Highly sensitive and selective colorimetric sensing of CO2 for biomedical applications

et al. 2022

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The concentration of carbon dioxide (CO2) in unhealthy people differs greatly from healthy people. High-precision CO2 detection with a quick response time is essential for many biomedical applications. A major focus of this research is on the detection of CO2, one of the most important health biomarkers. We investigated a low-cost, flexible, and reliable strategy by using dyes for colorimetric CO2 sensing in this study. The impacts of temperature, pH, reaction time, reusability, concentration, and dye selectivity were studied thoroughly. This study described real-time CO2 analysis. Using this multi-dye method, we got an average detection limit of 1.98 ppm for CO2, in the range of 50–120 ppm. A portable colorimetric instrument with a smartphone-assisted unit was constructed to determine the relative red/green/blue values for real-time and practical applications within 15 s of interaction and the readings are very similar to those of an optical fiber probe. Environmental and biological chemistry applications are likely to benefit greatly from this unique approach.

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“…In addition, around 0.25 million people die each year prematurely due to improper management and lack of personal asthma monitoring tool. As well Kaitlin and Krull suggested that young adults (age [18][19][20][21][22][23][24][25] suffering from asthma should have a personal asthma monitoring device to assess their disease and decrease their risk of exacerbation and hospital admission [4]. Hence the early diagnosis of asthma and achieving acceptable asthma supervision at the right time remains evasive despite the existing methods.…”

Section: Introductionmentioning

confidence: 99%

“…A Recent study shows that the capnograph can be considered as a new method to monitor the asthmatic condition [10][11][12][13][14][15][16][17][18][19][20][21][22]; as it uses an infrared technology to measure the concentration of carbon dioxide during exhalation and helps to understand the respiratory status of the patients including asthma [23]. However, most of the studies were offline.…”

Section: Introductionmentioning

confidence: 99%

Portable Respiratory CO2 Monitoring Device for Early Screening of Asthma

Nurifhan¹,

Prakash²,

Ahmed³

2016

Fourth International Conference on Advances in Computing, Electronics and Communication - ACEC 2016

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Abstract-This paper presents a portable and patient independent respiratory CO 2 monitoring device for early screening of asthma. The device is developed incorporation of hardware (Sprint IR CO 2 sensor with a sampling rate of 20 Hz, face mask, Atmega 328 microcontroller and graphical liquid crystal display-GLCD) and software (Arduino integrated development environment). The Transistor-Transistor Logic (TTL) communication was used to transmit and receive the signal from the host (microcontroller) to sensor and vice versa. Further, the computation and transmission algorithm was developed to process and display the CO 2 signal on GLCD. In addition, the signal processing techniques were used to discriminate mild stage of asthma and non-asthma condition. In this preliminary study, the developed device was tested on 20 subjects aged between 20 and 25 years. Out of those, 5 were suffering from mild asthma and 15 were without asthma. The performance of the developed prototype device was confirmed through statistical analysis using SPSS software which achieved 80% sensitivity and 90% specificity. The p-value of the developed device was 0.000. The result shows that it's statistically significant and able to differentiate asthma (mild) and non-asthma. However, the device will be tested further on a larger number of populations to generalize the finding.

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End‐tidal Carbon Dioxide Measurements in Children with Acute Asthma

Cited by 17 publications

References 18 publications

Is capnometry helpful in children with bronchiolitis?

Is capnometry helpful in children with bronchiolitis?

Highly sensitive and selective colorimetric sensing of CO2 for biomedical applications

Portable Respiratory CO2 Monitoring Device for Early Screening of Asthma

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