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  • Title: [Target-controlled infusions of remifentanil and propofol in elderly patients].
    Author: Xu CY, Wu XM, Jiang JY.
    Journal: Beijing Da Xue Xue Bao Yi Xue Ban; 2005 Oct 18; 37(5):513-5. PubMed ID: 16224525.
    Abstract:
    OBJECTIVE: To investigate the clinical reliability and feasibility of target-controlled infusion (TCI) with different plasma concentration remifentanil and propofol. METHODS: Thirty ASA I-II patients, > or =65 years old, undergoing selective lower abdominal operation were divided into 3 groups, group A with anesthesia using propofol combined with epidural block, group B with anesthesia using propofol and remifentanil (plasma concentration 4 microg/L), group C with anesthesia using propofol and remifentanil (plasma concentration 7 microg/L). BIS value, heart rate, blood pressure, heart rate variability and so on, were recorded during anesthesia and operation. Radial arterial blood samples for analysis of plasma concentration of propofol were taken during operation. RESULTS: (1) The intubation response of groups B and C was lower than that of group A . (2) The depth of anesthesia was enough during operation (BIS value=45-60). (3) TCI propofol combined with remifentanil didn't lengthen the awaking time of patients; (4) MDPE of target-controlled infusion using propofol with Marsh parameters was 11.17%, MDAPE was 12.16% in Chinese elderly patients. CONCLUSION: Remifentanil with plasma concentration of 4 and 7 microg/L combined with propofol could be safely used during clinical anesthesia of old patient, but monitoring must be strengthened during induction when plasma concentration of remifentanil was 7 microg/L. TCI propofol with Marsh parameters could be applied to Chinese elderly patients safely and efficiently.
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