Comparison Between Peribulbar And Sub-tenon Blocks on Oculocardiac Reflex (OCR) During Pediatric Strabismus Surgery

"Peribulbar block using a two-injection technique was performed by a second anesthetist under sterile conditions and before the application of surgical drapes. LAM was injected both infratemporal and superonasally using a 26-G needle, in contrast to the single infratemporal injection approach.~Gentle digital oculopression was performed for 5 minutes"

Children in the sub-Tenon group received a sub-Tenon block. Sub-Tenon's anesthesia was performed with 0.5% bupivacaine (0.08 ml/kg), bearing in mind not to exceed the maximum dose. Under sterile conditions, a 19- gauge curved blunt metallic cannula (25 mm) was inserted into sub-Tenon's space and the local anesthetic was injected by the ophthalmologist after the application of surgical drapes.

Children in the control group received IV paracetamol (15 mg/kg) after induction of anesthesia before any surgical intervention.