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Diagnosis of anesthetic-induced upper airway obstruction in children using respiratory inductance plethysmography.

Abstract：

OBJECTIVE:Upper airway obstruction is the most rapid and clinically relevant cause of hypoxia during sedation and anesthesia. This study was designed to determine if respiratory inductance plethysmography (RIP) could quantify the degree of upper airway obstruction caused by induction of general anesthesia. METHODS:RIP tracings were obtained during induction of general anesthesia in healthy children. Three sets of measurements were obtained during: (1) a 3 minute control period without anesthetics, (2) 3 minutes of 50% nitrous oxide, and (3) halothane administration to complete the induction of general anesthesia. Clinical impression of upper airway obstruction (none, partial, or complete) was correlated with two separate RIP analysis techniques. RESULTS:Three hundred ninety-five breathing epochs from 20 children (ages 3-10 years) were analyzed by both phase shift and phase inversion techniques. Although both techniques had good general correlation with severity of airway obstruction, neither was sufficiently reliable for accurate prediction of severity of airway obstruction. CONCLUSIONS:We investigated two methods for analyzing RIP tracings during varying degrees of upper airway obstruction in anesthetized children. We found that neither technique was sufficiently accurate for predicting the severity of upper airway obstruction and would not be useful as a predictor of upper airway obstruction in the clinical or research settings.

journal_name

J Clin Monit Comput

journal_title

Journal of clinical monitoring and computing

authors

Litman RS,Kottra JA,Gallagher PR,Ward DS

doi

10.1023/a:1021246119194

subject

Has Abstract

pub_date

2002-07-01 00:00:00

pages

279-85

issue

5

eissn

1387-1307

issn

1573-2614

journal_volume

17

pub_type

杂志文章

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