Dacryoendoscopic Findings in the Failed Silicone Tube Intubations without Dacryoendoscopy
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Purpose: To investigate the clinical characteristics and dacryoendoscopic findings and clinical efficacy of silicone tube intubation(STI) in the patients who referred to our center due to failed with conventional STI. Methods: We retrospectively reviewed the medical records of 61 cases from 50 patients who underwent STI or endoscopicdacryocystorhinostomy using dacryoendoscopy from January 2016 to May 2021. Clinical characteristics, tear meniscus height,lacrimal irrigation test, dacryocystographic findings, dacryoendoscopic findings and surgical outcomes were evaluated. Results: The study included 12 male and 38 female patients (mean age, 64.1 ± 13.2 years). In the preoperative lacrimal irrigationtest, passage was found in 33 eyes (54.1%) and no passage in 28 eyes (45.9%). The causes of lacrimal duct obstructionwere in the order of stenosis (31.1%), mucus (27.9%), membrane (24.6%), granulation (13.1%), and stone (3.3%), and the locationwere in the order of nasolacrimal duct (39.3%), lacrimal sac (36.1%), canaliculus (21.3%), and inferior meatus (3.3%). As forthe characteristics of obstruction, the secretory type was 21 eyes (34.4%), and structural change type was 40 eyes (65.6%). The STI group consisted of 57 eyes (93.4%) and endoscopic dacryocystorhinostomy consisted of four eyes (6.6%). The overallsuccess rate was 83.9%. Clinical results were correlated with dacryoendoscopic finding (p = 0.015), but not with lacrimal irrigationtest or dacryocystography. The structural change type had a higher surgical success rate than the secretory type (84.4%vs. 66.7%, p = 0.015). In particular, the structural change type showed higher success rate than the secretory type below thelacrimal sac (95.5% vs. 61.9%, p = 0.034). Conclusions: STI using dacryoendoscopy has a higher surgical success rate than conventional STI since dacryoendoscopy providesdirect visualization of nasolacrimal duct obstruction. It could be useful in increasing the surgical success rate in patientswith structural changes below lacrimal sac.
Abstract
Purpose: To investigate the clinical characteristics and dacryoendoscopic findings and clinical efficacy of silicone tube intubation(STI) in the patients who referred to our center due to failed with conventional STI. Methods: We retrospectively reviewed the medical records of 61 cases from 50 patients who underwent STI or endoscopicdacryocystorhinostomy using dacryoendoscopy from January 2016 to May 2021. Clinical characteristics, tear meniscus height,lacrimal irrigation test, dacryocystographic findings, dacryoendoscopic findings and surgical outcomes were evaluated. Results: The study included 12 male and 38 female patients (mean age, 64.1 ± 13.2 years). In the preoperative lacrimal irrigationtest, passage was found in 33 eyes (54.1%) and no passage in 28 eyes (45.9%). The causes of lacrimal duct obstructionwere in the order of stenosis (31.1%), mucus (27.9%), membrane (24.6%), granulation (13.1%), and stone (3.3%), and the locationwere in the order of nasolacrimal duct (39.3%), lacrimal sac (36.1%), canaliculus (21.3%), and inferior meatus (3.3%). As forthe characteristics of obstruction, the secretory type was 21 eyes (34.4%), and structural change type was 40 eyes (65.6%). The STI group consisted of 57 eyes (93.4%) and endoscopic dacryocystorhinostomy consisted of four eyes (6.6%). The overallsuccess rate was 83.9%. Clinical results were correlated with dacryoendoscopic finding (p = 0.015), but not with lacrimal irrigationtest or dacryocystography. The structural change type had a higher surgical success rate than the secretory type (84.4%vs. 66.7%, p = 0.015). In particular, the structural change type showed higher success rate than the secretory type below thelacrimal sac (95.5% vs. 61.9%, p = 0.034). Conclusions: STI using dacryoendoscopy has a higher surgical success rate than conventional STI since dacryoendoscopy providesdirect visualization of nasolacrimal duct obstruction. It could be useful in increasing the surgical success rate in patientswith structural changes below lacrimal sac.
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