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Comparison Between Single Injection Technique for Percutaneous Inferomedial and Medial Canthus Episcleral Anesthesia Using a Short Fine Needle (27G-12.5mm) in Cataract Surgery
ESRA Academy. Sami R. Sep 8, 2016; 138617; 0503 Topic: Local anaesthesia
Assoc. Prof. Rehab Sami
Assoc. Prof. Rehab Sami

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Abstract
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Background and Aims:

Comparing the efficacy and safety of single injection using a short, fine needle (27G,12mm) in the medial canthus and infero-medial sites to produce optimal operating conditions for cataract surgery.

Methods:

After obtaining approval of the Ethical Committee of the Institute, this comparative study included 108 patients allocated in two groups (54 patients each). Single percutaneous peribulbar injection was performed using a short fine needle (27G,12mm) in the medial canthus site in the first group and in the infero-medial site in the second group. Surgical akinesia was assessed as a primary end point while analgesia, incidence of complications as well as patient and surgeon satisfaction were assessed as secondary end point.

Results:

Both sites provided comparable akinesia. An equal number of patients required supplementary injection in both groups. However, the total volume of the local anesthetic injected was less in the infero-medial group. There were no serious complications in the two groups. 

Conclusions:

Single injection peribulbar technique at both entry sites (medial canthus and infero-medial) using a short fine needle (27G,12mm) proved to be a safe and efficient technique that offers excellent anesthesia and akinesia with less complications for cataract surgery.

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