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Effect of ear point embedding on plasma and effect site concentrations of propofol-remifentanil in elderly patients after target-controlled induction / 中国针灸
Chinese Acupuncture & Moxibustion ; (12): 869-873, 2017.
Article in Chinese | WPRIM | ID: wpr-247817
ABSTRACT
<p><b>OBJECTIVE</b>To observe the clinical effect of ear point embedding on plasma and effect site concentrations of propofol-remifentanil in elderly patients who underwent abdominal external hernia surgery at the time of consciousness and pain disappearing by target-controlled infusion (TCI) and bispectral index (BIS).</p><p><b>METHODS</b>Fifty patients who underwent elective abdominal hernia surgery were randomly assigned into an observation group and a control group, 25 cases in each one. In the observation group, 30 minutes before anesthesia induction, Fugugou (Extra), Gan (CO), Pizhixia (AT), and Shenmen (TF) were embedded by auricular needles until the end of surgery, 10 times of counter press each point. In the control group, the same amount of auricular tape was applied until the end of surgery at the same points without stimulation 30 minutes before anesthesia induction. Patients in the two groups were given total intravenous anesthesia, and BIS was monitored by BIS anesthesia depth monitor. Propofol was infused by TCI at a beginning concentration of 1.5μg/L and increased by 0.3μg/L every 30s until the patients lost their consciousness. After that, remifentanil was infused by TCI at a beginning concentration of 2.0μg/L and increased by 0.3μg/L every 30s until the patients had no body reaction to pain stimulation (orbital reflex). Indices were recorded, including mean arterial pressure (MAP), heart rate (HR) and the BIS values, at the time of T(entering into the operation room), T(losing consciousness) and T(pain relief), the plasma and effect site concentrations of propofol at T, the plasma and effect site concentrations of remifentanil at T. After surgery we recorded the total amounts of propofol and remifentanil, surgery time and anesthesia time.</p><p><b>RESULTS</b>At Tand T, MAP and HR of the observation group were higher than those of the control group (<0.05,<0.01). At T, the plasma and effect site concentrations of propofol in the observation group were significantly lower than those in the control group (<0.05,<0.01). At T, the plasma and effect site concentrations of remifentanil in the observation group were significantly lower than those in the control group (<0.05,<0.01). There was no significant difference in BIS values at Tand Tbetween the two groups (both>0.05). There was no significant difference in operation time and anesthesia time between the two groups (both>0.05). The total amount of remifentanil in the observation group was significantly lower than that in the control group (<0.01). There was no significant difference in the total amount of propofol between the two groups (>0.05).</p><p><b>CONCLUSIONS</b>Ear points embedding combined with propofol-remifentanil TCI could reduce the plasma and effect site concentrations of propofol and remifentanil and the total amount of remifentanil in elderly patients with extra-abdominal hernia surgery, and had the effect of assisting sedation and analgesia.</p>

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Acupuncture & Moxibustion Year: 2017 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Acupuncture & Moxibustion Year: 2017 Type: Article