Khairuddin, Ismail
(2009)
A study of continuous monitoring of
endotracheal tube cuff pressure using an
electronic device in critical care setting.
Masters thesis, Pusat Pengajian Sains Perubatan.
Abstract
The endotracheal tube (ETT) cuff pressure measurement is not a routine practice
in many critical care units. The main purpose of this study is to determine the accuracy or
relationship of electronic measurement of ETT cuff pressure by continuous method (using
aneroid manometer method as the control) and the usefulness of the continuous method toward
reducing endotracheal tube-related complications in intensive care settings. A total of 56 patients were recruited involving ICU patient intubated with ETT with
cuff. A preliminary study was also conducted to determine the safety and stability of this
electronic device. The precision of reading of ETT cuff pressure were compared with manual
aneroid manometer and the variability of cuff pressure changes were also assessed apart from
ETT cuff related complications. The complications that we looked for were the prevalence of
ventilator-associated pneumonia (V AP), post-extubation stridor, sore-throat and endotrachealtube
(ETT) dislodgement. We found that there was a significant correlation between the readings by aneroid
manometer with that of electronic measurement device, with p value of< 0.001 ( mean 44.16 vs
44.22 mm Hg ). The prevalence of V AP, sore-throat and endotracheal tube dislodgement were
1.8%, 3.6% and 3.6% respectively. No patient was noticed to have post-extubation stridor. The readings recorded by the electronic device for ETT cuff measurement was
comparable with aneroid manometer and its use could potentially reduce ETT cuff-related
complications.
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