Single-breath counting for the assessment of bronchospastic patients in the ED

Single breath counting (SBC) is the measurement of how far an individual can count in cadence with a metronome set at 2 beats per second in a normal speaking voice following a maximal effort inhalation. Previous work has demonstrated that it correlates well with standard measures of pulmonary function. The objective of this study is to derive a "normogram" of healthy children showing the expected SBC value as a function of easily measured physiologic parameters (age, gender, height, and weight). This was a prospective observational study of a convenience sample of healthy children presenting for well-child checks or non-respiratory complaints at a large tertiary care center. Correlation was determined by the Pearson's product correlation coefficient (r) and r (2) determined as a measure of shared variance. Multiple regression analysis was performed on demographic data to determine a best linear fit with calculation of the coefficient of determination (R (2)). A total of 105 children served as the basis for analysis; 54 (51.4 %) were male and average age was 9.7 (median 10, range 3-15) years. For both males and females, height correlated most strongly with SBC score (r = 0.730 and 0.725, respectively). In both genders, height alone accounted for more than 50 % of the observed variance in the results (r (2) = 0.533 and 0.526, respectively). Breath counting, an easy to perform test that appears to correlate well with standard measures of pulmonary function and shows promise for measuring asthma severity in children. We present an equation for predicting normal results (a "normogram").

show abstract

“…Single breath counting (SBC) is the measurement of how far an individual can count in a normal speaking voice [11,12].…”

Section: Discussionmentioning

confidence: 99%

Single breath counting for the evaluation of pediatric respiratory function: derivation of a “normogram”

Kass

Putnam

2015

Intern Emerg Med

View full text Add to dashboard Cite

show abstract

“…Ushkow et al correlated PEF rate with a single-breath counting (SBC) technique in adult patients with symptomatic asthma (5). Patients were asked to count as far as possible on a single breath, following a metronome set at 2 beats per second (120 syllables per minute).…”

Section: Discussionmentioning

confidence: 99%

“…While a few studies have attempted to correlate out-loud counting of numbers with PEF in adult patients with asthma (5,6), no study has compared this in children with asymptomatic and symptomatic asthma. In addition, this technique is not being used as standard of care in the emergency department (ED).…”

Section: Introductionmentioning

confidence: 99%

Correlation of a Unique “Los Angeles” Phonospirometry Technique with Peak Expiratory Flows in Children with Asthma

2012

View full text Add to dashboard Cite

show abstract

“…• Single breath counting (SBC) is an alternative test to assess pulmonary function. SBC is measured by asking patients to take a deep breath and count as far as possible in their normal speaking voice without taking another breath (35,36).…”

Section: Clinical Syndrome and Approach To Suspected Or Confirmed Covmentioning

confidence: 99%

An Italian Guidance Model for the Management of Suspected or Confirmed COVID-19 Patients in the Primary Care Setting

Lopes¹,

Vernuccio

Costantino

et al. 2020

Front. Public Health

View full text Add to dashboard Cite

An outbreak of Severe Acute Respiratory Syndrome Coronavirus 2 started in China's Hubei province at the end of 2019 has rapidly become a pandemic. In Italy, a great number of patients was managed in primary care setting and the role of general practitioners and physicians working in the first-aid emergency medical service has become of utmost importance to coordinate the network between the territory and hospitals during the pandemic. Aim of this manuscript is to provide a guidance model for the management of suspected, probable, or confirmed cases of SARS-CoV-2 infection in the primary care setting, from diagnosis to treatment, applying also the recommendations of the Italian Society of General Medicine. Moreover, this multidisciplinary contribution would analyze and synthetize the preventive measures to limit the spread of SARS-CoV-2 infection in the general population as well as the perspective for vaccines.

show abstract

Single-breath counting for the assessment of bronchospastic patients in the ED

Cited by 13 publications

References 5 publications

Single breath counting for the evaluation of pediatric respiratory function: derivation of a “normogram”

Single breath counting for the evaluation of pediatric respiratory function: derivation of a “normogram”

Correlation of a Unique “Los Angeles” Phonospirometry Technique with Peak Expiratory Flows in Children with Asthma

An Italian Guidance Model for the Management of Suspected or Confirmed COVID-19 Patients in the Primary Care Setting

Contact Info

Product

Resources

About