Al-Haddad Christiane, Ismail Karine, Houry Rana, Al Sayyid Samia, El Moussawi Zeinab
Department of Ophthalmology, American University of Beirut, Beirut, Lebanon.
School of Medicine, American University of Beirut, Beirut, Lebanon.
Middle East Afr J Ophthalmol. 2020 Jul 20;27(2):123-127. doi: 10.4103/meajo.MEAJO_188_18. eCollection 2020 Apr-Jun.
The purpose of this study was to evaluate predictive factors for intermittent exotropia (XT) recurrence after bilateral lateral rectus (BLR) recession.
This is a retrospective chart review of patients with XT who underwent BLR recession surgery between January 2007 and March 2017 with at least one postsurgical follow-up. Forty-one medical records were reviewed. Information collected included age, gender, systemic diseases, history of prematurity, family history of eye diseases, visual acuity, refraction, ocular alignment and control, stereoacuity, slit-lamp examination, fundoscopy, and amount of BLR recession. Successful alignment was defined as ≤8 prism diopters of esotropia or exotropia postoperatively.
The mean age of patients at the time of surgery and follow-up time was 9.2 ± 12.3 years (y) and 23.6 ± 36.5 months (m), respectively. The mean amount of BLR recession was 6.5 ± 1.0 mm. Recurrence rate was 43.9% on the last follow-up. Age at surgery and at the time of last follow-up were significantly higher in the recurring group ( = 0.04 and = 0.05, respectively). Postoperative angle of misalignment during the first 3 months was correlated with exotropia recurrence. No statistical significance was found among the remaining factors studied.
The recurrence rate of XT in our study was 43.9%; it was increased in patients operated at older age and amid those with significant exotropia detected in the early postoperative period (within 3 months of surgery).
本研究旨在评估双侧外直肌（BLR）后徙术后间歇性外斜视（XT）复发的预测因素。
这是一项对2007年1月至2017年3月期间接受BLR后徙手术且至少有一次术后随访的XT患者的回顾性病历审查。共审查了41份病历。收集的信息包括年龄、性别、全身疾病、早产史、眼病家族史、视力、验光、眼位及控制情况、立体视锐度、裂隙灯检查、眼底检查以及BLR后徙量。成功的眼位矫正定义为术后内斜视或外斜视≤8棱镜度。
手术时和随访时患者的平均年龄分别为9.2±12.3岁（y）和23.6±36.5个月（m）。BLR后徙的平均量为6.5±1.0mm。最后一次随访时的复发率为43.9%。复发组手术时和最后一次随访时的年龄显著更高（分别为P = 0.04和P = 0.05）。术后前3个月的眼位偏斜角度与外斜视复发相关。在研究的其余因素中未发现统计学意义。
我们研究中XT的复发率为43.9%；在年龄较大时接受手术的患者以及术后早期（手术3个月内）发现有明显外斜视的患者中复发率增加。
