West D D
Medical Center of Delaware.
Physician Assist. 1990 Dec;14(12):21-4.
Patient-controlled Analgesia (PCA) permits patients to treat their postoperative pain by activating a pump to deliver doses of intravenous narcotic. This technique was developed in response to the undertreatment of postoperative pain with conventional intramuscular therapy. PCA allows patients to balance pain control with sedation, and permits nurses to implement other aspects of patient care once pain is controlled. Concerns regarding PCA include mechanical errors, overdosage, and inadequate patient instruction. Careful patient screening and preoperative teaching are essential. While data regarding cost-effectiveness are limited, increasing use and patient satisfaction could make PCA the standard of care in the future.
患者自控镇痛（PCA）使患者能够通过启动泵来输注静脉麻醉剂剂量，从而治疗术后疼痛。这项技术是针对传统肌肉注射疗法对术后疼痛治疗不足而研发的。PCA让患者能够在控制疼痛与镇静之间取得平衡，并且一旦疼痛得到控制，护士就可以开展患者护理的其他方面工作。对PCA的担忧包括机械故障、用药过量以及患者指导不足。对患者进行仔细筛选和术前教育至关重要。虽然关于成本效益的数据有限，但PCA使用的增加和患者满意度的提高可能使其在未来成为护理标准。
