advertisement
Abstract #5912 Published in IGR 2-1
Local parabulbar anesthesia with Greenbaum cannula for most common ophthalmic operations
Bak A; Marczak MKlinika Oczna 1999; 101: 367-370
PURPOSE: To compare two methods of local anesthesia in ophthalmic surgery: the classic retrobulbar and new-parabulbar made with Greenbaum cannula, and to try to assess a new method. MATERIAL AND METHODS: Three hundred patients underwent the most common ophthalmic operations: ECCE + PCLI and glaucoma surgery. One hundred and fifty of them were anesthetized by the retrobulbar and 150 by the parabulbar (flush) with Greenbaum cannula methods. The authors compared the presumed influence of these two types of anesthesia on the operations assessing the following: the occurrence 'vis a tergo' and posterior capsule rupture. They also compared the efficacy of both methods (analgesia and akinesia) and the complications (retrobulbar hematoma, globe perforation). The authors minimalized the volume of anesthetic mixture used in the retrobulbar method to 1.5 ml (0.5 ml 0.5% bupivacaine + 1 ml 2% xylocaine). RESULTS: The number of complications was lower in the group anesthetized by the parabulbar method. The complications of local anesthesia were greater in the retrobulbar method (retrobulbar hematoma, globe perforation). Anesthesia in the parabulbar method, despite the low volume of the anesthetic mixture, was very good, but akinesia was slightly weaker compared to retrobulbar injection. CONCLUSIONS: Parabulbar anesthesia made with Greenbaum cannula is a very effective and safe method, providing very efficient anesthesia no possibility of globe perforation or retrobulbar hematoma, but the method should be reserved for skilled surgeons because of weaker akinesia. LA: Polish
Dr. A. Bak, Oddzialu Okulistycznego Wojewodzkiego Szpitala Podkarpackiego w Krosnie
Classification:
12.17 Anesthesia (Part of: 12 Surgical treatment)
