Respiratory Rate during Acute Asthma

Kesten, Steven; Maleki-Yazdi, M. Reza; Sanders, Bruce; Wells, Janet A.; McKillop, Susan L.; Rěbuck, A. S.

doi:10.1378/chest.97.1.58

Cited by 45 publications

(36 citation statements)

References 15 publications

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“…Marked increases in respiratory rate, or tachypnoea, have been found in such varying conditions as pneumonia, sepsis, salicylism, bronchiolitis and acute asthma (Krieger, 1964;Temple, 1981;Selbst, 1985;Kesten et al, 1990;Singhi et al, 1994a). Low respiratory rates or bradypnoea are unusual and may indicate brainstem dysfunction as seen in Amold-Chiari malformation or brain tumour (Brouillette, 1992).…”

Section: Background To Thesismentioning

confidence: 99%

“…It is therefore important to optimise both the clinical and laboratory assessment of asthma, so the most appropriate treatment can be given to patients promptiy. It has been found that the pre-treatment respiratory rate in acute asthma correlates with measurements of peak expiratory flow rate (PEFR) and forced expiratory volume in one second (FEVi o) (Kesten et aL, 1990). Respiratory rate is therefore a simple clinical sign which can be helpful in assessing the severity of asthma in children.…”

Section: Background To Thesismentioning

confidence: 99%

“…However, the degree of accessory muscle use was a better predictor of the severity of asthma. Kesten et aL (1990) (1993) found oxygen saturation in children with asthma to be poorly correlated with RR on admission to hospital. Hillman, Prentice and Finucane (1986) also found no significant relationship between FEVj o and RR in acute asthma.…”

Section: Asthmamentioning

confidence: 99%

“…This helps to maintain flow rates and ventUation (Hedstrand, 1971), However, methacholine chaUenge tests, which can cause bronchoconstriction in well people with asthma, induce an increase in ventUation largely by increasing tidal volume rather than RR (Mathieu and Sartene, 1987;Kesten et al,, 1990), It is possible increases in RR in acute asthma coiUd be due to the more severe airway obstmction associated with this situation.…”

Section: Asthmamentioning

confidence: 99%

“…Release of inflammatory mediators could also condibute to alterations in breathing pattems in asthma (Kesten et al, 1990). Histamine mduced bronchoconstriction and anaphylaxis are associated with tachypnoea mediated by irritant receptors in animals (Anthonisen and Chemicack, 1981).…”

Section: Asthmamentioning

confidence: 99%

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Analysis of respiratory rate and the respiratory cycle in infants and children using an optical sensor

Herbert¹

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Section: Background To Thesismentioning

confidence: 99%

Section: Background To Thesismentioning

confidence: 99%

Section: Asthmamentioning

confidence: 99%

Section: Asthmamentioning

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Section: Asthmamentioning

confidence: 99%

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Analysis of respiratory rate and the respiratory cycle in infants and children using an optical sensor

Herbert¹

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A Cost-Saving Algorithm for Children Hospitalized for Status Asthmaticus

McDowell

Chatburn²,

Myers³

et al. 1998

Arch Pediatr Adolesc Med

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Association of Prenatal and Postnatal Exposures to Warm or Cold Air Temperatures With Lung Function in Young Infants

et al. 2023

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ImportanceLittle is known about long-term associations of early-life exposure to extreme temperatures with child health and lung function.ObjectivesTo investigate the association of prenatal and postnatal heat or cold exposure with newborn lung function and identify windows of susceptibility.Design, Setting, and ParticipantsThis population-based cohort study (SEPAGES) recruited pregnant women in France between July 8, 2014, and July 24, 2017. Data on temperature exposure, lung function, and covariates were available from 343 mother-child dyads. Data analysis was performed from January 1, 2021, to December 31, 2021.ExposuresMean, SD, minimum, and maximum temperatures at the mother-child’s residence, estimated using a state-of-the-art spatiotemporally resolved model.Main Outcomes and MeasuresOutcome measures were tidal breathing analysis and nitrogen multiple-breath washout test measured at 2 months of age. Adjusted associations between both long-term (35 gestational weeks and first 4 weeks after delivery) and short-term (7 days before lung function test) exposure to ambient temperature and newborn lung function were analyzed using distributed lag nonlinear models.ResultsA total of 343 mother-child pairs were included in the analyses (median [IQR] maternal age at conception, 32 [30.0-35.2] years; 183 [53%] male newborns). A total of 246 mothers and/or fathers (72%) held at least a master’s degree. Among the 160 female newborns (47%), long-term heat exposure (95th vs 50th percentile of mean temperature) was associated with decreased functional residual capacity (−39.7 mL; 95% CI, −68.6 to −10.7 mL for 24 °C vs 12 °C at gestational weeks 20-35 and weeks 0-4 after delivery) and increased respiratory rate (28.0/min; 95% CI, 4.2-51.9/min for 24 °C vs 12 °C at gestational weeks 14-35 and weeks 0-1 after delivery). Long-term cold exposure (5th vs 50th percentile of mean temperature) was associated with lower functional residual capacity (−21.9 mL; 95% CI, −42.4 to −1.3 mL for 1 °C vs 12 °C at gestational weeks 15-29), lower tidal volume (−23.8 mL; 95% CI, −43.1 to −4.4 mL for 1 °C vs 12 °C at gestational weeks 14-35 and weeks 0-4 after delivery), and increased respiratory rate (45.5/min; 95% CI, 10.1-81.0/min for 1 °C vs 12 °C at gestational weeks 6-35 and weeks 0-1 after delivery) in female newborns as well. No consistent association was observed for male newborns or short-term exposure to cold or heat.Conclusions and RelevanceIn this cohort study, long-term heat and cold exposure from the second trimester until 4 weeks after birth was associated with newborn lung volumes, especially among female newborns.

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Respiratory Rate during Acute Asthma

Cited by 45 publications

References 15 publications

Analysis of respiratory rate and the respiratory cycle in infants and children using an optical sensor

Analysis of respiratory rate and the respiratory cycle in infants and children using an optical sensor

A Cost-Saving Algorithm for Children Hospitalized for Status Asthmaticus

Association of Prenatal and Postnatal Exposures to Warm or Cold Air Temperatures With Lung Function in Young Infants

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