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Title: Comparison of age-based and height-based formula for tracheal tube size in cardiac children
Authors: Saowapark Chumpathong
Saipin Muangman
Benno von Bormann
Kamheang Vacharaksa
Mahidol University
Keywords: Medicine
Issue Date: 1-Apr-2012
Citation: Journal of the Medical Association of Thailand. Vol.95, No.4 (2012), 544-549
Abstract: Objective: To compare the effectiveness of age-based formula (ABF) and height-based formula (HBF) for pediatric cardiac patients, including patients with failure to thrive (FTT). Material and Method: In a retrospective study of 260 cardiac patients that included those with failure to thrive, aged 2 to 7 years was done. The actual uncuffed endotracheal tube (ETT) size was compared with the predicted one, using both the ABF [ID (mm) = age (years)/4 + 4] and the HBF [ID (mm) = height (cm)/30 + 2] . Results: ABF and HBF correctly predicted 50.8% and 50.4% of ETT sizes (p = 1.0), whereas three sizes of tubes (one above and one below the predicted size) cover 95.8% and 93.5% of the patients, respectively (p = 0.24). In patients with FTT, both the ABF and HBF correctly predicted 56.6% of ETT sizes. Conclusion: Age- and height-based formula for estimating tube size in cardio-surgical children is equivalent and independent of physical development. Age-based formula as the simple method can be recommended. The availability of three tube sizes (one smaller, one larger than estimated) should be ensured.
ISSN: 01252208
Appears in Collections:Scopus 2011-2015

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