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1.
Academic Journal of Second Military Medical University ; (12): 74-76, 2001.
Article in Chinese | WPRIM | ID: wpr-736806

ABSTRACT

Objective: To investigate jugular bulb venous oxyg en partial pressure(PjO2), hemoglobin saturation (SjO2) and the arterial t o jugular bulb venous oxygen content difference(AjDO2) during anesthesia with desflurane and isoflurane in patients with brain tumor. Methods: Fifty-six patients with brain tumor were randomized into desflur ane or isoflurane for maintaining anesthesia. PjO2, SjO2 and AjDO2 in pati ents were measured during normoventilation, hyperventilation and hypoventilation . Results: During normoventilation, SjO2 and PjO2 in desflu rane group was significantly higer than those in isoflurane group(P<0.05 or P<0.01), and AjDO2 in desflurane group was significantly lower than that in isoflurane group(P<0.05).Except that PjO2 in desflurane group was si gnificantly higer than that in isoflurane group during hyperventilation (P< 0.01), there were no differences in SjO2, PjO2 or AjDO2 between the 2 g roups during hyperventilation or hypoventilation. While anesthesia with desflura ne and isoflurane, there was a positive correlation between PaCO2 and SjO2. Conclusion: At the same anesthetic effect concentration, desflur ane can significantly increase SjO2 and PjO2 in comparison to isoflurane un der normoventilation, suggesting that desflurane may have stronger effect of rel axing cerebral vessel than isoflurane.

2.
Academic Journal of Second Military Medical University ; (12): 74-76, 2001.
Article in Chinese | WPRIM | ID: wpr-735338

ABSTRACT

Objective: To investigate jugular bulb venous oxyg en partial pressure(PjO2), hemoglobin saturation (SjO2) and the arterial t o jugular bulb venous oxygen content difference(AjDO2) during anesthesia with desflurane and isoflurane in patients with brain tumor. Methods: Fifty-six patients with brain tumor were randomized into desflur ane or isoflurane for maintaining anesthesia. PjO2, SjO2 and AjDO2 in pati ents were measured during normoventilation, hyperventilation and hypoventilation . Results: During normoventilation, SjO2 and PjO2 in desflu rane group was significantly higer than those in isoflurane group(P<0.05 or P<0.01), and AjDO2 in desflurane group was significantly lower than that in isoflurane group(P<0.05).Except that PjO2 in desflurane group was si gnificantly higer than that in isoflurane group during hyperventilation (P< 0.01), there were no differences in SjO2, PjO2 or AjDO2 between the 2 g roups during hyperventilation or hypoventilation. While anesthesia with desflura ne and isoflurane, there was a positive correlation between PaCO2 and SjO2. Conclusion: At the same anesthetic effect concentration, desflur ane can significantly increase SjO2 and PjO2 in comparison to isoflurane un der normoventilation, suggesting that desflurane may have stronger effect of rel axing cerebral vessel than isoflurane.

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