Patient-controlled regional analgesia (PCRA) is a new analgesic method composed of regional nerve block and PCA.

应用区域神经阻滞并结合自控镇痛形成患者自控区域镇痛，是一种新的镇痛方法。

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Patient-controlled regional analgesia (PCRA) is a new analgesic method composed of regional nerve block and PCA.

应用区域神经阻滞并结合自控镇痛形成患者自控区域镇痛，是一种新的镇痛方法。

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