Abstract:
PURPOSE:Patients undergoing primary pterygium excision with autologous conjunctival autograft and human tissue adhesive in New Zealand, currently receive subconjunctival anesthesia with oral postoperative analgesia for pain. Our aim was to investigate the potential added benefit of intraoperative subtenon bupivacaine to this regimen. METHODS:A double-blinded, placebo-controlled, randomized trial was conducted at 2 centers. All patients received topical and subconjunctival anesthesia intraoperatively, with standardized oral analgesia as required postoperatively. Participants were allocated to receive subtenon bupivacaine 0.5% or placebo at the conclusion of surgery. Corneal epithelial defect and conjunctival graft size were recorded. Pain and ocular surface irritation were assessed (Likert scale) immediately postoperatively at 3, 6, 12, 24, and 36 hours. Cumulative oral analgesia consumption (doses) was reported at 24 and 36 hours. RESULTS:Forty-two patients were randomized with participants evenly matched at baseline. Postoperative pain at all time points ≤24 hours was significantly less (2.4 vs. 1.2; P < 0.04) in the bupivacaine arm with no difference at 36 hours (P = 0.27). Ocular surface irritation was also significantly less at all time points ≤12 hours (4.8 vs. 1.3; P < 0.01) with no difference at 24 hours (P = 0.10). Analgesia consumption was less in the bupivacaine arm at 24 (6.5 vs. 2.5; P < 0.01) and 36 hours (7.6 vs. 3.4; P < 0.01). No complications were observed. CONCLUSIONS:Intraoperative subtenon bupivacaine improves patient comfort after pterygium excision by reducing pain, irritation, and requirement for oral analgesia after surgery.
journal_name
Corneajournal_title
Corneaauthors
Bhikoo R,Hughes K,Vather R,Murphy Cdoi
10.1097/ICO.0000000000001973subject
Has Abstractpub_date
2019-08-01 00:00:00pages
959-963issue
8eissn
0277-3740issn
1536-4798pii
00003226-201908000-00007journal_volume
38pub_type
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