Selection of cuffed endotracheal tube for children with congenital heart disease based on an ultrasound-based linear regression formula.

Abstract:

:It remains to be discovered whether a formula predicting the subglottic transverse diameter measured by ultrasound (SGDformula) for the selection of an appropriate endotracheal tube (ETT) for children without congenital heart disease (CHD) is useful for children with CHD. A formula for predicting SGD was established after assessing 60 children ≤ 8 years without CHD and validated on 60 children with CHD. We selected the cuffed ETT size based on the SGD by ultrasound (SGDultra). Subsequently, the fit of the ETT cuff in 60 children with CHD was examined via air-leak test. The maximum allowed difference between the SGDformula and the ETT size that fit was 0.2 mm. The agreement among and accuracy of SGDultra, SGDformula, and the ETT used in children was analyzed. For children without CHD, we adopted a linear formula, given by SGDformula (mm) = 0.4 × age + 5.3. For children with CHD, allometric formula was adopted, given by SGDformula (mm) = 5.4 × age0.18. A stronger agreement exists between SGDultra and ETT size compared to that between SGDformula and ETT size. And the mean bias (SGDformula-ETT size and SGDultra-ETT size) was 0.21 mm (95% confidence interval, - 0.59 to 1.01 mm) and 0.00 mm (- 0.79 to 0.84 mm). For the CHD group, the ultrasound-based method yielded a 78% success rate of ETT size choice, while the formula-based method permitted an appropriate ETT size in only 32% of subjects (P < 0.001). Our analysis showed that measuring the SGDultra was more accurate in predicting the correct OD of the ETT in children with CHD undergoing cardiovascular surgery, based on the correlation and agreement with ETT OD.

journal_name

J Clin Monit Comput

authors

Zhang K,Ma RJ,Zheng JJ,Chen YQ,Zhang MZ

doi

10.1007/s10877-018-0203-7

subject

Has Abstract

pub_date

2019-08-01 00:00:00

pages

687-694

issue

4

eissn

1387-1307

issn

1573-2614

pii

10.1007/s10877-018-0203-7

journal_volume

33

pub_type

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