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  • Title: Intraocular pressure, quality of block, and degree of pain associated with ropivacaine in peribulbar block: a comparative randomized study with bupivacaine-lidocaine mixture.
    Author: Ozcan AA, Ozdemir N, Günes Y, Bozkurt A, Yagmur M, Alparslan ZN.
    Journal: Eur J Ophthalmol; 2003; 13(9-10):794-7. PubMed ID: 14700102.
    Abstract:
    PURPOSE: To compare the effects of ropivacaine and bupivacaine-lidocaine combination on intraocular pressure, quality of block, and degree of postoperative pain in peribulbar block. METHODS: The study group involved 32 patients undergoing elective cataract surgery under peribulbar block. Patients were divided into two groups according to the local anesthetic used: Group 1 (n = 16), ropivacaine 0.75%; and Group 2 (n = 16), bupivacaine 0.5%-lidocaine 2% mixture. Intraocular pressure was measured at four time points: before block (control), 1 min after block, 5 min after block, and 15 min after block with Tonopen. Quality of block was evaluated using a three-point scoring system based on the reduction of globe motility. Patients were asked their degree of intraoperative pain by using a five-point verbal rating score after the surgery. RESULTS: Mean values of intraocular pressure after block were significantly lower in Group 1 in comparison to Group 2 (p < 0.05, Mann Whitney test). The quality of block was better in Group 2, and the degree of postoperative pain was lower in Group 1 (p < 0.05, Mann-Whitney test). CONCLUSIONS: Ropivacaine used in peribulbar block is better than bupivacaine-lidocaine mixture under the same standard conditions in terms of reducing intraocular pressure and postoperative pain in intraocular surgery.
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