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What information can we give to the patient about the risks of strabismus surgery.

ABSTRACT: I hope to report the type, incidence, and clinical outcomes of severe complications from strabismus surgery in the United Kingdom and to help in the discussions involved in the consent process. The main part of the talk will revolve around a BOSU (British Ophthalmic Survey Unit) investigation. Cases were identified prospectively between 1 September 2008 and 31 August 2010. Questionnaire data were requested at the time of the complication recognition and at 6 months' follow-up. Outcome was graded I-V, with a poor or very poor outcome meaning either loss of corrected visual acuity or primary position double vision. A total of 60 completed reports of adverse events and complications were received during the study period. During the same time, ∼24 000 strabismus surgeries were carried out in the United Kingdom, yielding an overall incidence of 1 in 400 operations (95% binomial confidence, 1 per 333-500 operations). The most commonly reported complication was perforation of the globe (19 (0.08%)), followed by a suspected slipped muscle (16 (0.067%)), severe infection (14 (0.06%)), scleritis (6 (0.02%)), and lost muscle (5 (0.02%)). Overall, complications were reported in adults and children in equal numbers; however, scleritis was significantly more common in adults. A poor or very poor clinical outcome was recorded as 1 operation per 2400. The study limitations are as follows: the denominator was extrapolated from the number of surgeries in England, and there was an almost certain underreporting of cases. Complications with the potential for a poor outcome are relatively common, but the final clinical outcome is good in the majority of cases.

SUBMITTER: Bradbury JA

PROVIDER: S-EPMC4330301 | biostudies-other | 2015 Feb

REPOSITORIES: biostudies-other

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Project description:Background: Emergence delirium in children following strabismus surgery is a distressing and potentially dangerous condition and is likely attributable to visual disturbances, pain, and anesthetic gases. We explored whether a single intraoperative dose of methadone could reduce emergence delirium. Methods: Our study was an institutional review board-approved prospective, controlled, before-and-after investigation. Inclusion criteria were age <18 years and American Society of Anesthesiologists (ASA) classification 1 or 2. Patients were excluded for obesity, documented sleep apnea, significant neurologic disease, or inpatient status. Control group patients were recruited sequentially, and the anesthetic was performed per preference. The study group was recruited similarly and received an intravenous dose of methadone 0.15 mg/kg at induction. The primary outcome was peak score on the Pediatric Anesthesia Emergence Delirium (PAED) scale. Secondary outcomes included time to anesthetic emergence, postoperative pain scores, postanesthesia care unit (PACU) length of stay, and postdischarge respiratory complications. Results: Forty-nine control group and 55 study group patients were recruited. No significant differences were found between groups for age, sex, weight, ASA classification, or duration of surgery. The control group received more preoperative midazolam, intraoperative fentanyl, and intraoperative ketorolac. Compared to the control group, the study group had 42% and 85% reductions in peak and severe PAED scale scores, respectively, in the PACU and required less rescue pain medications. Anesthetic emergence time and length of stay were not different between the groups. No significant postoperative complications occurred. Conclusion: Emergence delirium following outpatient pediatric strabismus surgery was substantially mitigated by the use of intraoperative methadone without affecting PACU throughput. No significant complications occurred. Further study is warranted to corroborate routine use of this drug for emergence delirium.

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What information can we give to the patient about the risks of strabismus surgery.

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