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ORIGINAL ARTICLE
Year : 2013  |  Volume : 3  |  Issue : 4  |  Page : 262-268

Evaluation of tracheal cuff pressure variation in spontaneously breathing patients


1 Respiratory Care Services, Clínica Basilea; Intensive Care Unit, Sanatorio Anchorena, Buenos Aires, Argentina
2 Respiratory Care Services, Clínica Basilea, Argentina
3 Intensive Care Unit, Sanatorio Anchorena, Buenos Aires, Argentina

Correspondence Address:
Gustavo A Plotnikow
Gral, Pueyrredón 261, 1888, Florencio Varela, Buenos Aires
Argentina
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2229-5151.124148

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Background: Most of the studies referring cuff tubes' issues were conducted on intubated patients. Not much is known about the cuff pressure performance in chronically tracheostomized patients disconnected from mechanical ventilation. Objective : To evaluate cuff pressure (CP) variation in tracheostomized, spontaneously breathing patients in a weaning rehabilitation center. Materials and Methods: Experimental setup to test instruments in vitro, in which the gauge (TRACOE) performance at different pressure levels was evaluated in six tracheostomy tubes, and a clinical setupin which CP variation over 24 h, every 4 h, and for 6 days was measured in 35 chronically tracheostomized clinically stable, patients who had been disconnected from mechanical ventilation for at least 72 h. The following data were recorded: Tube brand, type, and size; date of the tube placed; the patient's body position; the position of the head; axillary temperature; pulse and respiration rates; blood pressure; and pulse oximetry. Results : In vitro difference between the initial pressure (IP) and measured pressure (MP) was statistically significant (P < 0.05). The difference between the IP and MP was significant when selecting for various tube brands (P < 0.05). In the clinical set-up, 207 measurements were performed and the CP was >30 cmH 2 O in 6.28% of the recordings, 20-30 cmH 2 O in 42.0% of the recordings, and <20 cmH 2 O in 51.69% of the recordings. Conclusion : The systematic CP measurement in chronically tracheostomized, spontaneously breathing patients showed high variability, which was independent of tube brand, size, type, or time of placement. Consequently, measurements should be made more frequently.


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