Abstract
Introduction To investigate the efficacy and safety of a modified bicanalicular intubation (MBCI) used in canalicular laceration. Materials and Methods This study is a retrospective consecutive chart review. A total of 43 eyes from 43 patients (36 males and 7 females) who underwent canalicular intubation were enrolled. Success rate was determined at 6 months after the surgery. Anatomical success was determined by diagnostic probing and irrigation; functional success was determined by asking patients about tearing. Results Irrigation of the lacrimal passages in all 43 eyes showed that they were free from obstruction. The anatomical success was 100%, and 37 eyes (86%) achieved functional success. 6 eyes (14%) could not achieve functional success because there were some residual symptoms under irritating conditions, such as wind or winter weather, among which 2 eyes had bicanalicular lacerations and 4 eyes had lower canalicular laceration before surgery. There were no other complications observed in this study. Conclusions The MBCI was simple and safe for using in canalicular laceration.
Highlights
To investigate the efficacy and safety of a modified bicanalicular intubation (MBCI) used in canalicular laceration
MBCI is a new bicanalicular silicone tube designed. is tube comprises 2 parts. e first part is a polyurethane elastomer tube with 2 blind tips (Figure 1). ere is a black mark spot in the middle of the polyurethane elastomer tube for positioning when implanted. ere are some holes located on the side of the tube for drainage and metal probe insert. e second part is a metal probe that lies within the stent lumen and works as a guiding probe, which is similar to an arterial catheter, facilitates the insertion of the stent (Figure 1)
Anatomical success was determined by diagnostic probing and irrigation; functional success was determined by asking patients about tearing
Summary
To investigate the efficacy and safety of a modified bicanalicular intubation (MBCI) used in canalicular laceration. 6 eyes (14%) could not achieve functional success because there were some residual symptoms under irritating conditions, such as wind or winter weather, among which 2 eyes had bicanalicular lacerations and 4 eyes had lower canalicular laceration before surgery. Canalicular laceration may occur at any age [1, 2], especially in children and young adults and commonly affects the inferior canaliculus [3]. Both direct and indirect injuries at the medial canthal region may result in canalicular laceration [1, 4]. Several methods are available for reconstructing the lacerated canaliculus, including repair of the lacerated eyelid without a lacrimal stent, intubation of the lacerated duct with monocanalicular or bicanalicular stents with or without mucosal anastomosis, or early canaliculodacryocystorhinostomy [1, 9,10,11,12,13]
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