An update to monocanalicular stent surgery

Dear Sir,I n their article, ＂A comparison between monocanalicular and pushed monocanalicular silicone intubation in the treatment of congenital nasolacrimal duct obstruction＂, Andalib et al present the results of a prospective study on congenital nasolacrimal duct obstruction treated either with a Monoka stent （using a Crawford hook for nasal retrieval） or a Masterka pushed technique for insertion of the Masterka stent. The success rates were respectively 90% and 50%.

下泪小管断裂吻合术单路置管与双路置管疗效比较

目的比较外伤性下泪小管断裂吻合术中单路置管术与双路置管术的临床疗效。方法回顾分析下泪小管断裂吻合术66例（66眼）。其中双路置管术3I例，单路置管术35例。两组均于术后3个月拔管，拔管后随访3个月，比较两种手术治愈率及并发症发生率。结果拔管后3个月，双路置管术组治愈20例，好转3例，无效8例，有效率74．2％；单路置管术组治愈27例，无效8例，有效率77．1％，两组间有效率比较差异无统计学意义（X^2=0．078，P=0．780）。术后双路置管术组共有8例出现下泪点撕裂，其中5例合并上泪点撕裂，单路置管术组未见泪点撕裂病例，泪点撕裂发生率两组比较差异有统计学意义（X^@=7．998，P=0．005）。结论两种置管术均有较好的临床治疗效果，单路置管术虽然短暂影响患者面部美观，但术后泪点无撕裂发生，保护了泪道的正常解剖结构，具有明显的远期优势。