Effects of Subtenon Anesthesia Combined With General Anesthesia on Perioperative Analgesic Requirements in Pediatric Strabismus Surgery

Abstract

We conclude that preoperative subtenon bupivacaine 0.5% compared with a saline injection contributed to reduction of perioperative pain and undesirable side effects in pediatric strabismus surgery performed under general anesthesia.

The effect of sub-Tenon's bupivacaine on oculocardiac reflex during strabismus surgery and postoperative pain: A randomized clinical trial

“…The results showed a significantly lower occurrence of OCR and postoperative pain in the bupivacaine treated group. [7] This study was repeated by Tuzcu et al in 2014 and they found no significant difference in the occurrence of OCR between normal saline and bupivacaine injected groups. [8] Contrary to Tuzcu et al and in agreement with Steib et al, our results clearly demonstrated that compared to the normal saline group who received the same anesthetic regimen and underwent a similar procedure performed by the same surgeon, the sub-Tenon bupivacaine injected group had a significantly lower incidence of OCR.…”

“…[13] Steib et al reported that sub-Tenon's block with bupivacaine decreased postoperative pain when compared to a saline injected control group. [7] Tuzcu et al also reported that pain scores at 30 minutes after surgery and additional analgesic treatment needed during the postoperative period were significantly lower in the sub-Tenon bupivacaine group than in the control group. [8] Contrary to these studies, in the study performed by Ates et al, there was no significant difference in terms of postoperative analgesia in the retrobulbar block or subconjunctival local anesthetic infiltration groups compared to the control group.…”

“…[2345] Sub-Tenon anesthetic injections have also been investigated for their preventive effect on OCR in pediatric strabismus surgery. [678] In 2005, Steib et al studied the efficacy of sub-Tenon injection of bupivacaine in pediatric strabismus surgery, and reported significant decrease in the incidence and severity of OCR, postoperative pain, and nausea/vomiting. [7] The occurrence of OCR, defined as a decrease in heart rate greater than 20%, in their study was 11% in the bupivacaine group versus 56% in the control group.…”

“…[678] In 2005, Steib et al studied the efficacy of sub-Tenon injection of bupivacaine in pediatric strabismus surgery, and reported significant decrease in the incidence and severity of OCR, postoperative pain, and nausea/vomiting. [7] The occurrence of OCR, defined as a decrease in heart rate greater than 20%, in their study was 11% in the bupivacaine group versus 56% in the control group. [7] This study was repeated by Tuzcu et al in 2014, and they found no significant differences in the occurrence of OCR between saline and bupivacaine injected groups.…”

“…[7] The occurrence of OCR, defined as a decrease in heart rate greater than 20%, in their study was 11% in the bupivacaine group versus 56% in the control group. [7] This study was repeated by Tuzcu et al in 2014, and they found no significant differences in the occurrence of OCR between saline and bupivacaine injected groups. [8] In the present study, we primarily investigated the effects of sub-Tenon bupivacaine versus saline injection, combined with intravenous general anesthesia, in decreasing the occurrence and severity of OCR during strabismus surgery.…”