1. Katz JA, Bridenbaugh PO, Knarr DC, Helton SH, Denson DD. Pharmaco-dynamics and pharmacokinetics of epidural ropivacaine in humans. Anesth Analg 1990;70:16-21.
2. Rockemann MG, Seeling W, Brinkmann A, Goertz AW, Hauber N, Junge J, et al. Analgesic and hemodynamic effects of epidural clonidine, clonidine/morphine and morphine after pancreatic surgery: A double-blind study. Anesth Analg 1995;80:869-74.
3. Ozalp G, Guner F, Kuru N, Kadiogullari N. Postoperative patient-controlled epidural analgesia with opioid bupivacaine mixtures. Can J Anaesth 1998;45:938-42.
4. Cousins MJ, Mather LE. Intrathecal and epidural administration of opioids. Anesthesiology 1984;61:276-310.
5. Turner G, Scott DA. A comparison of epidural ropivacaine infusion alone and with three different concentration of fentanyl for 72 hours of postoperative analgesia following major abdominal surgery. Reg Anesth 1998;23:A39.
6. Mc Clure JH. Ropivacaine. Br J Anaesth 1996;76:300-7.
7. Markham A, Faulds D. Ropivacaine: A review of its pharmacology and therapeutic use in regional anaesthesia. Drugs 1996;52:429- 49.
8. Katz JA, Bridenbaugh PO, Knarr DC, Helton SH, Denson DD. Pharmaco-dynamics and pharmacokinetics of epidural ropivacaine in humans. Anesth Analg 1990;70:16-21.
9. Reiz S, Häggmark S, Johansson G, Nath S. Cardiotoxicity of ropivacaine: A new amide local anaesthetic agent. Acta Anaesthesiol Scand 1989;33:93-8.
10. Pitkanen M, Feldman HS, Arthur GR, Covino BG: Chronotropic and inotropic effects of ropivacaine, bupivacaine, and lidocaine in the spontaneously beating and electrically paced isolated, perfused rabbit heart. Reg Anesth 1992; 17:183-192.
11. Moller R, Covino BG: Cardiac electrophysiologic properties of bupiva-caine and lidocaine compared with those of ropivacaine, a new amide local anesth-etic. Anesthesiology 1990; 72:322-329.
12. Cousins MJ, Mather LE. Intrathecal and epidural administration of opioids. Anesthesiology 1984;61:276-310.
13. El-Baz NMI, Faber LP, Jensik RJ. Continuous epidural infusion of morphine for treatment of pain after thoracic surgery: a new technique. Anesth Analg 1984;63: 757-64
14. Gourlay GK, Murphy TM, Plummer JL, et al. l’bannacokinetics of fentanyl in lumbar and cervical CSF following lumbar epidural and intravenous administration. Pain 1989;38:253-9.
15. Gourlay GK, Cherry DA, Cousins MJ. Cephalad migration of morphine in CSF following lumbar epidural administration in patients with cancer pain. Pain 1985;23:317–26.
16. Scott DA, Blake D, Buckland M, et al. A comparison of epidural ropivacaine infusion alone and in combination with 1, 2, and 4 microg/mL fentanyl for seventy-two hours of postoperative analgesia after major abdominal surgery Anesth Analg. 1999 Apr;88(4):857-64.
17. David C. Campbell, MD et al.Ambulatory Labor Epidural Analgesia: Bupivacaine Versus Ropivacaine. Anesthesia & Analg-esia. June 2000 vol. 90 no. 6 1384-138.
18. Amanda J. Pinder. Ropivacaine and Bupivacaine with Fentanyl for Labor Epidural Anesthesia. Anesth Analg: October 2000;91:5:1310-1311.
19. Buggy DJ, Hall NA, Shah J, Brown J, Williams J.Motor block during patient-controlled epidural analgesia with ropivacaine or ropivacaine/fentanyl after intrathecal bupivacaine for caesarean sec-tion.Br J Anaesth. 2000 Sep;85(3):468-70.
20. Lee WK, Yu KL,et al.Ropivacane 0.1 % with or without fentanyl for epidural postoperative analgesia: a randomized, double-blind comparison.Kaohsiung J Med Sci. 2003 Sep;19(9):458-63.
21. Atienzar MC, Palanca JM, Borras R, Esteve I, Fernandez M, Miranda A. Ropivacaine 0.1% with fentanyl 2 microg mL(-1) by epidural infusion for labour analgesia. Eur J Anaesthesiol 2004;21: 770-5.
22. Shirasaka T, Yonaha T, Ookubo S, Nishimura E, Kashiwada M, Takasaki M.Optimal dose of fentanyl for postoperative epidural analgesia after cesarean section.Masui. 2005 Sep;54(9):1008-13.
23. Kanai A, Osawa S,et al.Regression of sensory and motor blockade, and analgesia during continuous epidural infusion of ropivacaine and fentanyl in comparison with other local anesthetics.Pain Med. 2007 Oct-Nov;8(7):546-53.
24. Mikhail Y Kirov, Alexey V Eremeev, et al.Epidural anesthesia and postoperative analgesia with ropivacaine and fentanyl in off-pump coronary artery bypass grafting: a randomized, controlled study.BMC Anesthesiology 2011, 11:17 doi:10.1186/1471-2253-11-1.
25. Katz JA, Bridenbaugh PO, Knarr DC, Helton SH, Denson DD. Pharmaco-dynamics and pharmacokinetics of epidural ropivacaine in humans. Anesth Analg 1990;70:16-21.
26. Meister GC, D’Angelo R, Owen M, et al. A comparison of epidural analgesia with 0.125% ropivacaine with fentanyl versus 0.125% bupivacaine with fentanyl during labor. Anesth Analg 2000; 90: 632–7.