Ropivacaine and hyaluronidase versus ropivacaine and lidocaine for peribulbar anaesthesia in cataract surgery with phacoemulsification

الملخص EN

ropivacaine and 50 IU / ml hyaluronidase with 0.75% ropivacaine and 2% lidocaine during peribulbar anaesthesia for cataract surgery.

Design: Thirty study is a double blind randomized clinical trial.

Methods.

Thirty physieal status ASA*1-I1I patients were randomly allocated to two groups.

Ropivncaine/ hyaluronidase group received 5 ml of 0.75 % ropivacnine plus 50 IU ml-1 hyakirnoidasc (RH group) .

and ropivacaine/ lidocaine group received 5 ml equal parts of 0.75 % ropivacnine and 2 % lidocaine (RL group).

Speed of onset and quality of motor blockade were assessed using ocular and eyelid movement scores, and sensory blockade was assessed by the three- point scoring system.

Surgical and patient satisfaction, and incidence of complications were recorded Results : The groups showed no difference in the rate of onset or degree of akincsis achieved.

Akinesia scores Of < 4 by 10 minutes (min) were 86.7 % in RH group and 73.3 % in RL group.

The low rate of supplementary anaesthesia in RH group may make ropivacaine/ hyaluronida.se mixture superior in peribulbar block.

There were no differences between groups m patients satisfaction and in the incidence of minor complications.

Conclusion : ropivacainc 0.75 % with hyaluronidase 50.IU ml-1 give quality of peribulbar block equivalent to ropivacaine 0.75 % with lidocaine 2 %, However, It is superior as regards the need for supplenientary anaesihesia