Alteration of Lung Mechanics Depending on Expiratory Sensitivity (ESENS) during Pressure Support Ventilation / 대한구급학회지
The Korean Journal of Critical Care Medicine
; : 8-16, 2006.
Article
Dans Ko
| WPRIM
| ID: wpr-649417
Responsable en Bibliothèque :
WPRO
ABSTRACT
BACKGROUND:
To evaluate effects of 5 expiratory sensitivity (ESENS) levels (5%; 15%; 25%; 35%; 45%) on lung mechanics and the effects depending on the two P(0.1) levels ( or =3 cm H2O).METHODS:
Prospective, randomized, physiologic study for intubated adult patients during weaning from mechanical ventilation. Patients were randomly submitted to the 5 settings of ESENS in the Galileo ventilator (Galileo Gold, Hamilton Medical AG, Switzerland). Physiologic variables were continuously measured using a Bicore CP-100 pulmonary mechanics monitor (CP-100, Bicore, USA).RESULTS:
Thirteen patients, ten men and three women, with a mean age of 65.2+/-16.1 yr were studied. Tidal volume (V(T)) decreased significantly from ESENS 5% to 45%. With increasing levels of ESENS, respiratory rates (RR) steadily increased from ESENS 5% to 35% and 45%. Shallow breath index (F/V(T)) increased significantly from ESENS 5% to 45%. Inspiratory time (T(I)) decreased gradually significantly from ESENS 5% to 45%. RR and F/V(T) increased from ESENS 5% to 15% and 45% and V(T) decreased gradually in patients with P(0.1) or =3 cm H2O.CONCLUSIONS:
The proper adjustment of expiratory sensitivity (ESENS) levels improved patient-ventilator synchrony and decreased respiratory rates and shallow breath index, especially in P(0.1)<3 cm H2O during PSV in ventilator weaning patients. Lower ESENS level would be more appropriate in terms of lung mechanics in patients with less than 3 cm H2O of P(0.1).
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Ventilation artificielle
/
Ventilation
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Sevrage
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Sevrage de la ventilation mécanique
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Respirateurs artificiels
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Volume courant
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Travail respiratoire
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Études prospectives
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Mécanique
/
Fréquence respiratoire
Type d'étude:
Clinical_trials
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Diagnostic_studies
/
Observational_studies
Limites du sujet:
Adult
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Female
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Humans
/
Male
langue:
Ko
Texte intégral:
The Korean Journal of Critical Care Medicine
Année:
2006
Type:
Article