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Related Experiment Videos

Ropivacaine for peribulbar anesthesia.

G Nicholson1, B Sutton, G M Hall

  • 1Department of Anesthesia, St. George's Hospital Medical School, London, England.

Regional Anesthesia and Pain Medicine
|August 13, 1999
PubMed
Summary

Ropivacaine and lidocaine mixtures provide effective peribulbar anesthesia for cataract surgery, comparable to bupivacaine and lidocaine. Ropivacaine demonstrated reduced eyelid movement, offering a viable alternative for anesthesia.

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Area of Science:

  • Ophthalmology
  • Anesthesiology
  • Pharmacology

Background:

  • Peribulbar anesthesia is crucial for cataract surgery.
  • Comparing anesthetic agents is essential for optimizing patient outcomes.
  • Ropivacaine and bupivacaine are local anesthetics used in ophthalmic procedures.

Purpose of the Study:

  • To compare the efficacy of ropivacaine-lidocaine mixture versus bupivacaine-lidocaine mixture for peribulbar anesthesia.
  • To evaluate the time to adequate surgical block and ocular/eyelid movement.
  • To determine if ropivacaine is a suitable alternative to bupivacaine in this context.

Main Methods:

  • A randomized study involving 90 patients undergoing cataract surgery.
  • Patients received either bupivacaine-lidocaine or ropivacaine-lidocaine anesthetic mixtures with hyaluronidase.
  • Clinical endpoints included time to adequate block and ocular and eyelid movement scores.

Main Results:

  • Both anesthetic mixtures achieved adequate surgical blocks in a median of 8 minutes.
  • Ocular movement scores were similar between groups.
  • Ropivacaine significantly reduced eyelid movement at 2, 6, and 8 minutes post-injection.
  • No significant differences in pain or minor complications were noted.
  • Fewer patients in the ropivacaine group required supplementary anesthesia.

Conclusions:

  • Ropivacaine 1% is an effective alternative to 0.75% bupivacaine for peribulbar anesthesia.
  • The combination of ropivacaine, lidocaine, and hyaluronidase provides comparable efficacy to bupivacaine-based anesthesia.
  • Ropivacaine offers potential benefits in reducing eyelid akinesia.

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