| Effect of Positive End-Expiratory Pressure on the Deadspace-Tidal Volume Ratio and Compliance in Adult Patients during Anesthesia . |
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Won Oak Kim, Jin Su Kim, Wyun Kon Park, Chung Hyun Cho, Kwang Won Park |
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Department of Anesthesiology, Yonsei University College of Medicine, Seoul, Korea. |
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| Abstract |
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In 15 patients without cardiopulmonary disease, We studied the effects of positive end- expiratory pressure(PEEP) on the deadspace-tidal volume ratio (VD/VT ratio) and total static compliance after induction of anesthesia. PEEP of 0,37+/- and 15 cmH2O were sequentially applied. Mean VD/VT ratio and compliance were 0.34+/-7.11, 57+/-8 m17H70 at zero PEEP, 0.37 +/-0.06, 64+/-6ml/H2O at 10 cmH70 PEBP, 0.43+/-0.16, 59+/-8 ml/cmH2O at 10 cmH2O PEEP and 0.43+/-0.16, 59.8 ml/cmHaO at 15 cm/H20 PEEP At each level of PEEP, VD/VT retie and compliance had increased with elevation of PEEP. VD/VT ratio at 15 cmH20 was signica- ntlr differed from that of utero PEEP but not in compliance. We 77served in anesthetized patients with healthy lung that the ap1ication of PEEP up to 15 omHaO increased VD/VT ratio and compliance. |
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