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- 저자 : 유해선 ( Hae Sun You ) (검색결과 1 건)
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임상연구 : 반폐쇄식 회로를 이용한 폐쇄회로 마취 시 신선가스 유량이 호흡일에 미치는 영향
유해선 ( Hae Sun You ),서령선 ( Young Sun Seo ),신혜원 ( Hye Won Shin ),이혜원 ( Hye Won Lee ),임혜자 ( Hae Ja Lim ),장성호 ( Seong Ho Chang ),윤석민 ( Suk Min Yoon ) 대한마취과학회 2006 Korean Journal of Anesthesiology Vol.50 No.5
Backgound: The effect of anesthetic techniques, such as closed circuit anesthesia (CCA) using semiclosed circuit system and semiclosed circuit anesthesia (SCCA), on the work of breathing has not been studied yet in detail. This study was purposed to compare the work of breathing according to anesthetic technique (CCA, SCCA). Methods: Thirty patients were assigned to receive either SCCA group or CCA group (n = 15). Anesthesia was induced with propofol 2 mg/kg with 2% lidocaine 1 ml. Two percents isoflurane with O2 and N2O 2 L/min were given for 10 min to patients initially to wash in functional residual capacity and the breathing circuits. In SCCA group, anesthesia was maintained with 2% isoflurane in O2 2 L/min and N2O 2 L/min throughout the surgery. In CCA group, O2 was reduced to 200 ml/min and N2O to 100 ml/min with isoflurane vaporizer setting adjusted to 4% for anesthesia maintenance. When the operation was ended, the vaporizer setting of isoflurane deceased to zero and then O2 was increased to 4 L/min for the arousal of the patient. We measured the inspiratory/expiratory concentration of isoflurane, end-tidal CO2, the hemodynamic parameters, the change of airway pressure, the work of breathing, and compliance at anesthetic induction and emergence in both groups. Results: There were no significant differences in the inspiratory/expiratory concentrations of isoflurane, the hemodynamic parameters, end-tidal CO2, airway pressure, the work of breathing and compliance between the groups. Conclusions: CCA using semiclosed circuit system does not increase the work of breathing compared to SCCA. (Korean J Anesthesiol 2006; 50: 495~500)
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