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2015 ; 94
(34
): e1460
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English Wikipedia
Sensitivity and Specificity of a Novel Approach to Confirm the Depth of the
Endotracheal Tube: A Pilot Study
#MMPMID26313810
Li Y
; Xie Y
; Hu B
; Wang J
; Song H
; Wei X
Medicine (Baltimore)
2015[Aug]; 94
(34
): e1460
PMID26313810
show ga
This study aimed to explore the sensitivity and specificity an approach to
confirm the depth of the endotracheal tube. It was a prospective, diagnostic
study (Registration number: chiCTR-TRC-14005170) conducted in the Department of
Anesthesiology of West China Hospital. A total of 100 patients underwent general
anesthesia were included. The distance between the upper margin of the cuff and
the manubriosternal joint (CM) and the distance between the upper margin of the
cuff and the carina (CC) were measured. The accuracy of the confirmed approach
against fiberoptic bronchoscopy (FOB) was evaluated. Sensitivity, specificity,
positive predictive value (PPV), and negative predictive value (NPV) were
calculated. The correlation and agreement between CM and CC were explored.The
sensitivity, specificity, positive predictive value (PPV), and negative
predictive value (NPV) were determined to be 94.74% (95% CI: 87.07-98.55%),
79.17% (95% CI: 57.85-92.87%), 93.51% (95% CI: 85.49-97.86%), 82.61% (95% CI:
61.22%-95.05%), respectively. The ? value was 0.75 (95% CI: 0.60-0.90). There was
a significant correlation between CM and CC (P?0.001) with a correlation
coefficient of 0.91(95% CI: 0.87-0.94). Bland and Altman plots also demonstrated
a good agreement between the CM and CC. This novel method may be used to confirm
the depth of the endotracheal tubes.