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麻醉期间使用降压药物或某些方法,主动地使患者的血压作有控制的降低,即为控制性降压。其目的是为了减少手术野的渗血、降低大血管内的张力或控制高血压危象,使之有利于手术的进行,保证患者的安全。本研究旨在探索鼻内窥镜术中全静脉麻醉时瑞芬太尼和异氟醚控制性降压对循环、出血量、调节血压起效时间的影响。
The use of antihypertensive drugs or some methods during anesthesia, the initiative to make the patient’s blood pressure as a controlled decrease, that is, controlled hypotension. Its purpose is to reduce the surgical field of oozing blood, reduce tension in the large blood vessels or control the crisis of hypertension, making it conducive to the operation, to ensure patient safety. The aim of this study was to investigate the effects of controlled hypotension of remifentanil and isoflurane on circulatory, hemorrhagic and regulative blood pressure onset time during total intravenous anesthesia in nasal endoscopy.