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  • Title: Lung function after lobectomy: a randomized, double-blinded trial comparing thoracic epidural ropivacaine/sufentanil and intravenous morphine for patient-controlled analgesia.
    Author: Bauer C, Hentz JG, Ducrocq X, Meyer N, Oswald-Mammosser M, Steib A, Dupeyron JP.
    Journal: Anesth Analg; 2007 Jul; 105(1):238-44. PubMed ID: 17578981.
    Abstract:
    BACKGROUND: Although thoracic epidural analgesia (TEA) is considered superior to IV opioids for postoperative analgesia after thoracic surgery, a few studies clearly demonstrate an improvement in pulmonary function attributable to TEA using a local anesthetic in combination with an opioid. METHODS: In this prospective, randomized, double-blind study, we compared the effects of TEA with ropivacaine and sufentanil (TEA group) to IV morphine (IV group), as they affected pain and pulmonary function after lobectomy in 68 patients. Pain intensity, forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), FEV1/FVC ratio, forced expiratory flows, and sniff nasal inspiratory pressure as a marker of inspiratory muscle strength were measured from the first to the fourth postoperative day. RESULTS: Pain relief was better in the TEA group at rest and on coughing (P < 0.001). The impairment of FVC and FEV1 was less in the TEA group when compared with that in the IV group (P < 0.001 and P = 0.003, respectively). Sniff nasal inspiratory pressure, FEV1/FVC ratio, and expiratory flow values decreased similarly in both groups. In-hospital mortality, as well as postoperative pulmonary complications, was not different between groups. CONCLUSION: After lobectomy, TEA enables a significant increase in pulmonary function concomitant with better pain relief than systemic morphine, although a modest intercostal motor block may occur.
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