TTS Fentanyl in Combination with Patient-Controlled Analgesia

Patient-controlled analgesia (PCA) has proved to be a highly effective method of acute pain management which has been well accepted by patients. Given that postoperative analgesic consumption reflects the intensity of postoperative pain, the concept of therapeutic intravenous on-demand analgesia or PCA can be used as a method to quantify postoperative pain [18]. Assuming that the amount of fentanyl required during PCA reflects the quality of pain relief provided by simultaneously performed pain therapy, PCA can be used to quantify the analgesic effect of TTS fentanyl.