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Effect of different tidal volume ventilations on atelectasis in patients during general anesthesia by CT scan / 中南大学学报(医学版)
Journal of Central South University(Medical Sciences) ; (12): 850-854, 2007.
Article Dans Chinois | WPRIM | ID: wpr-813787
ABSTRACT
OBJECTIVE@#To investigate the effect of different tidal volume ventilations on the amount of atelectasis during general anesthesia.@*METHODS@#Twenty adults, ASA physical status I and status II patients, who were scheduled for elective excision of intracranial lesion were randomly divided into 2 groups Group TV (traditional tidal volume ventilation, 10 mL/kg) and Group LV (low tidal volume ventilation, 6 mL/kg). Atelectasis, as determined by CT and artery blood gas (ABG) analysis, was measured before the anesthesia, after the tracheal intubation, and at the end of the operation, respectively. Respiratory mechanical parameters were measured at 30, 120, and 240 min after the intubation.@*RESULTS@#After the tracheal intubation, CT scan showed obvious atelectasis in both groups. The atelectasis area was(4.35+/-2.15)cm2 (3.12%+/-1.94%) in the TV group and (4.80+/-2.45)cm2 (3.89%+/-2.11%) in the LV group, with a nonsignificant difference between the 2 groups. At the end of the operation, there was no significant increase in the amount of atelectasis between and within the 2 groups. Artery blood gas analysis showed no difference after the tracheal intubation and at the end of the operation in either group. Ppeak, Pplat, Pmean and lung compliance(Cst)were significantly higher in the TV group than those in the LV group.@*CONCLUSION@#Low tidal volume(6 mL/kg) ventilation is more feasible during general anesthesia in patients with healthy lungs, and it does not increase the atelectasis and impairment of gas exchange.
Sujets)
Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Atélectasie pulmonaire / Imagerie diagnostique / Tomodensitométrie / Volume courant / Compliance pulmonaire / Surveillance peropératoire / Anesthésie générale / Poumon / Méthodes Type d'étude: Etude diagnostique Limites du sujet: Adulte / Humains langue: Chinois Texte intégral: Journal of Central South University(Medical Sciences) Année: 2007 Type: Article

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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Atélectasie pulmonaire / Imagerie diagnostique / Tomodensitométrie / Volume courant / Compliance pulmonaire / Surveillance peropératoire / Anesthésie générale / Poumon / Méthodes Type d'étude: Etude diagnostique Limites du sujet: Adulte / Humains langue: Chinois Texte intégral: Journal of Central South University(Medical Sciences) Année: 2007 Type: Article