PCA and cancer pain.

P.C.A. is a well known therapeutic strategy in analgesia. As this method has become a standard in postoperative analgesia, it becomes a nice alternative in cancer pain treatment when oral drug administration failed. In cancer pain treatment P.C.A. modality can be used in the subcutaneous or spinal administration route of drugs. The former is preferred because of its simplicity and lack of complications. In this presentation the P.C.A. spinal administration is discussed. The author obtained very good results with the continuous spinal administration of morphine. Recent literature data support the idea that P.C.A. bolus administration might prevent dose escalation.