期刊
INDIAN JOURNAL OF OPHTHALMOLOGY
卷 57, 期 2, 页码 121-125出版社
ALL INDIA OPHTHALMOLOGICAL SOC
DOI: 10.4103/0301-4738.45501
关键词
Exodeviations; intermittent exotropia; intravenous anesthesia; single-stage adjustable strabismus surgery; topical strabismus surgery; two-stage adjustable suture surgery
Purpose: To evaluate the feasibility and stability of ocular alignment after single-stage adjustable strabismus surgery (SSASS) performed under topical anesthesia. Materials and Methods: Forty-five patients of concomitant exodeviations were randomized into three groups of 15 cases each and were operated with three different techniques: Group I - conventional surgery, Group II - two-stage adjustable suture technique with suture adjustment performed 6h postoperatively and Group III- SSASS under topical anesthesia and intravenous conscious sedation with midazolam and fentanyl. Intraoperative suture adjustment was done by giving a cross target to the patient on the ceiling at the end of the procedure. Surgical results were compared among the three groups at three months follow-up. Intraoperative hemodynamic parameters and patients experience of the surgery (by questionnaire) were also compared. Results: Mean preoperative deviation for distance in Groups I, II, III was -41.67 prism diopter (pd) number9.0, -38.93 pd number11.05 and -41.87 pd number8.91 ( P =0.6) respectively. At three months, mean correction achieved for distance was 31.87 pd number11.71, 35.47 pd number10.86 and 42.80 pd number10.71 respectively which was significantly different between Group III and Group I ( P =0.03). Intraoperatively all hemodynamic parameters remained stable and comparable ( P =0. 5) in all groups. Intraoperative pain ( P 0.001) and time taken for surgery ( P 0.001) was more in the SSASS group. Amount of exodrift was 10-12 pd, comparable in all three groups ( P = 0.5). Conclusions: SSASS, performed under topical anesthesia, is safe and has better outcomes than conventional recession-resection surgery for concomitant exodeviation. An overcorrection of about 10-12 pd is recommended to check the exodrift and achieve stable alignment.
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