微创性影像引导下的经皮介入诊疗正逐步取代外科开放性手术 ,因其所致的组织损伤显著减轻故无须全麻 ,但多数患者仍要忍受诸多不适。对此绝大多数医师靠静脉使用镇静剂或麻醉剂来处置患者的疼痛和焦虑。达到控制疼痛的目的。然而这些药物即使在常规剂量下亦可能导致心血管抑制 Minimally invasive imaging guided percutaneous interventional treatment is gradually replacing open surgery, because of its significant reduction of tissue damage so there is no need for general anesthesia, but most patients still have to endure a lot of discomfort. Most physicians rely on intravenous sedatives or anesthetics to treat their patients’ pain and anxiety. Achieve the purpose of controlling pain. However, these drugs can cause cardiovascular suppression even at regular doses