• Regis Fuzier, Philippe Izard, Claire Cabos, Brigitte Chaminade, and Jacques Pouymayou.
• J Pain Palliat Care Pharmacother. 2016 Sep 1; 30 (3): 195-200.

AbstractPain is a major concern for patients suffering from cancer. Although opioid drugs remain the gold standard for treatment of pain, little is known about the interest of continuous analgesia techniques as alternative. The aim of the present article is to detail the feasibility and to present the diversity of continuous perineural infusion of local anesthetic. A series of five patients suffering from different cancer-related pain is presented. A continuous perineural block was proposed to patients presenting with unbearable pain in an area innervated by a plexus or a nerve despite parenteral analgesic pharmacotherapy. All blocks were performed in a surgical theatre under sterile conditions. An initial bolus dose with 3.75 mg/mL ropivacaine was injected followed by a continuous infusion of 2 mg/mL of ropivacaine. Patient-controlled perineural analgesia was started at home by a nursing network. The technique, the efficacy, and the side effects were reported. Complete pain relief was noted 15 minutes after local anesthetic injection in the five cases, and efficacy was maintained during the following days at home, with no other analgesic treatment required. One patient restarted working a few weeks after catheter insertion. The catheter duration lasted for 12 to 110 days. One catheter was removed because of local anesthetic leak at the puncture point. Some paresthesia was noted in one patient. No other side effect was noted. No infection was reported. In selected patients, continuous perineural infusion of local anesthetics appears to be an attractive alternative to parenteral opioids for cancer-related pain. Further investigation is warranted to better define the place of these techniques in the armamentarium of cancer-related pain treatment.

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