Masui. The Japanese journal of anesthesiology
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We report three cases of continuous wound infiltration (CWI) for postoperative analgesia in upper abdominal surgery using the multi-holed epidural catheter. Ropivacaine 0.2% at a rate of 8 ml x hr(-1) was administered through the catheters after surgery. Intravenous-patient controlled analgesia was used as a rescue. ⋯ The consumption of rescue morphine was little and no side effect of morphine was observed. CWI is an easy procedure and is indicated in the patients with hemostatic abnormality and a difficulty in the epidural anesthesia. CWI was an effective technique for postoperative pain control in the upper abdominal surgery patients.
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Case Reports
[Anesthetic machine leakage from vaporizer by external force derived from keyboard of electronic medical records].
We experienced the leakage from the vaporizer of the anesthetic machine despite the normalities on performing the initial leak test. The vaporizer of the anesthetic machine was compressed by computer keyboard of EMR which caused a leak from vaporizer. After computer keyboard and the vaporizer were set at normal position, the leak stopped.
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Comparative Study
[Is nitrous oxide useful for laryngeal mask airway insertion under 8% sevoflurane?].
The usefulness of nitrous oxide for laryngeal mask airway insertion under 8% sevoflurane anesthesia was investigated. ⋯ Nitrous oxide shortened induction time, decreased hemodynamic changes, but did not increase postoperative nausea, vomiting and headache when used for anesthesia induction with 8% sevoflurane to insert laryngeal mask airway.
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The bispectral index (BIS) is widely used to measure anesthetic levels in the perioperative period. In our hospital, the BIS monitors (A-2000) are connected to bedside monitors and display BIS values on them through outside input. ⋯ One possible reason is thought that the BIS Quatro Sensor transmits both EEG signals and sensor information to the BIS A-2000 monitor separately. BIS A-2000 monitors may process EEG signals and sensor information individually, and transfer BIS parameters to the external equipments, regardless of sensor information.