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  • Title: Combinations of fentanyl and levobupivacaine for post-thoracotomy pain.
    Author: Tekelioglu UY, Gurses EL, Serin S, Sungurtekin H.
    Journal: Acta Anaesthesiol Taiwan; 2012 Sep; 50(3):131-3. PubMed ID: 23026173.
    Abstract:
    The aim of the present study is to evaluate the analgesic activity, patient satisfaction, and side effect profile of different concentrations of levobupivacaine plus fentanyl administered through thoracic epidural patient-controlled analgesia in patients undergoing thoracotomy. The study included 60 patients who were randomly divided into three groups. At the end of the surgery, group I (n = 20) received 0.125% levobupivacaine plus 3 mg fentanyl, group II received 0.1% levobupivacaine plus 3 mg fentanyl, and group III received 0.05% levobupivacaine plus 3 mg fentanyl via an epidural catheter placed at the level of T(10-11) or T(11-12). For all groups, the patient-controlled analgesia device was programmed to deliver a loading dose of 14 mL at an infusion rate of 4 mL/h, and a bolus dose of 2 mL/h, with a locked out interval of 15 minutes and 60 mL of a 4-hour limit. The following parameters were evaluated at 5, 10, 15, 20, 30, and 40 minutes and at 1, 2, 4, 8, 16, and 24 hours after admission to the intensive care unit, at which nausea and vomiting scales, Visual Analog Scale I-II, Ramsay sedation scale, Bromage scale, pupil diameter, arterial blood pressure, heart rate, respiratory rate, and SpO(2) were measured and recorded. Any side effect was also documented. As the result of the evaluation, visual Analog Scale I-II scores, patient satisfaction scores, mean arterial blood pressure, and heart rate significantly differed in group I as compared with groups II and III. No side effects were encountered except mild nausea, which was seen in group III and did not require treatment. Motor blockage, pupil size, respiratory rate, and SpO(2) were not monitored in any of the patients in all groups. In conclusion, our study suggested that the use of 0.125% levobupivacaine, together with 3 mg/mL fentanyl, constitutes a good combination, and can be used safely without causing hemodynamic change and motor block.
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