Masui. The Japanese journal of anesthesiology
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Two types of new electrical infusion pumps (pump) scheduled to be introduced to the Japanese market in this autumn, were featured focusing on patient controlled analgesia (PCA). For the successful introduction of PCA pumps into clinical practice, initial investments including both finance and manpower may be required. The clinical application of these PCA pumps should benefit both patients and medical staffs and gain more than the initial investment eventually.
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The influence of surgery and anesthesia on aspects of malignant tumor has received considerable attention in recent years. It is suggested that in vitro studies, clinically available anesthetics, such as intravenous anesthetics, local anesthetics and opioids have, more or less, possible antitumor potential against human malignant tumor cells. ⋯ Moreover, animal studies indicate that the addition of spinal block and optimum postoperative analgesia independently reduce the metastatic burden by blocking the stress response under inhalational anesthesia alone. Considering inconclusive results, especially in human, about evaluating the influence of anesthetics on malignant tumor, further studies in basic and clinical settings are required to study the effects of anesthetics on malignant tumor.