Transcanalicular endoscopic primary dacryoplasty for congenital nasolacrimal duct obstruction

Matsumura, Nozomi; Suzuki, Toru; Goto, Satoshi; Fujita, Takeshi; Yamane, Shin; Maruyama-Inoue, Maiko; Kadonosono, Kazuaki

doi:10.1038/s41433-019-0374-6

Cited by 31 publications

(29 citation statements)

References 26 publications

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“…Dacryoendoscopy has been used as a diagnostic and therapeutic modality in CNLDO and acquired NLD obstruction in children by various authors. 3,[9][10][11][12][13][14][15] In a series of 54 cases of CNLDO undergoing DEN assisted probing an overall success rate of 97% was reported. 13,14 In another study DEN showed focal obstruction at distal NLD in 51 cases and dacryoliths in five cases.…”

Section: Discussionmentioning

confidence: 99%

Usefulness of high definition sialoendoscope for evaluation of lacrimal drainage system in congenital nasolacrimal duct obstruction

Gupta

Singla

Ganesh

2021

European Journal of Ophthalmology

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Purpose: Sialoendoscope was used as a dacryoendoscope, high- definition images of the lacrimal drainage system (LDS) were captured and its performance in congenital nasolacrimal duct obstruction (CNLDO) is reported. Methods: Nasal endoscopy was done as the first in all the cases using a 0°, 2.7 mm nasal endoscope (Karl Stroz Tutlingan Germany). This was followed by Dacryoendoscopy (DEN) of the lacrimal drainage system from puncta till the valve of Hasner. DEN was performed under general anaesthesia in 26 children (including 17 primary and 9 failed probing cases). All cases were examined using 0.8 mm sialoendoscope (Karl Storz, Tuttlingen, Germany) with fibreoptic light transmission with a side port for irrigation. Results: We were able to obtain high-definition images of canaliculi, lacrimal sac, sac duct junction, proximal, mid and distal segments of nasolacrimal duct in all the children with CNLDO. In 17 primary cases 16 had distal membranous obstruction and I case had proximal canalicular obstruction. In nine children with history of failed probing, five had membranous obstruction, two had dacryoliths, two had NLD malformation at different levels. An overall success rate of 88.4% was achieved. Conclusion: Sialoendoscope can be used as high-definition dacryoendoscope for diagnostic and therapeutic use in CNLDO. Useful information can be obtained on dacryoendoscopy in complex CNLDO cases.

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Section: Discussionmentioning

confidence: 99%

Usefulness of high definition sialoendoscope for evaluation of lacrimal drainage system in congenital nasolacrimal duct obstruction

Gupta

Singla

Ganesh

2021

European Journal of Ophthalmology

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“…Nevertheless, much evidence has shown that the outcomes of ENDI are almost as effective as DCR for canaliculus obstruction and PANDO (in cases of non-in ammatory or partial obstruction). 15,17,18,[29][30][31] However, it has been reported that patients with prolonged preoperative occlusions, extended length obstruction, or a history of dacryocystitis tend to relapse ENDI. 17,22,29,31,32 Meanwhile, ENDI, which are generally performed under local anesthesia, ,is bene cial as it is a minimally invasive procedure for the treatment of PANDO.…”

Section: Discussionmentioning

confidence: 99%

Comparison of the efficacies of 1.0mm and 1.5mm silicone tubes for the treatment of nasolacrimal duct obstruction

Nakamura

Kamao

Mitani

et al. 2022

Preprint

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This study was designed to compare the postoperative outcomes of bicanalicular intubation using different diameters of silicone tubes to treat post-saccal nasolacrimal duct obstruction. A total of 130 patients diagnosed with post-saccal obstruction who underwent endoscopic-assisted silicone tube intubation were included in the study. The patients were divided into two groups; those intubated with a 1.5-mm large diameter tube (Group LD) and those with a 1.0-mm normal diameter tube (Group ND). The patency rates of the two groups at one year after tube removal were compared using the Kaplan–Meier's curve and Restricted mean survival time (RMST) method with τ = 365 days. Results showed that the recurrence rate after tube removal was significantly lower in the LD group compared to the ND group (p = 0.001). The patency rates at one year after removal in the LD and ND group were 0.857 (0.754-0.919) and 0.739 (0.617-0.828), respectively. When comparing the patency rates by the RMST method at τ = 365 days, the RMST difference, RMST ratio, and RMTL ratio were higher in the LD group at p = 0.045, 0.052, and 0.046, respectively.

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“…Nevertheless, evidence has accumulated that the outcomes of ENDI are almost as effectual as DCR for canaliculus obstruction and certain forms of PANDO (in cases of non-in ammatory or partial obstruction). 2,4,5,[7][8][9] Since ENDI can be a minimally invasive procedure for the treatment of PANDO, further studies are needed to compare the long-term treatment outcomes of DCR and ENDI in terms of pathological conditions (e.g., site of obstruction, cause of obstruction, and duration of obstruction).…”

Section: Discussionmentioning

confidence: 99%

Analysis of lacrimal duct morphology from cone-beam CT dacryocystography in a Japanese population

Nakamura

Kamao

Mitani

et al. 2022

Preprint

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Purpose: The morphology and inclination of the lacrimal duct differ among individuals and ethnic groups. We used cone-beam CT dacryocystography (CBCT-DCG) to measure several parameters of the lacrimal duct in a Japanese population.Methods: We retrospectively analyzed the CBCT-DCG images of 102 cases diagnosed with unilateral primary acquired nasolacrimal duct obstruction (PANDO) at Ehime University Hospital from December 2015 to May 2021. We investigated the following parameters of the lacrimal duct on the contralateral side of unilateral PANDO: 1) the angle formed by the superior orbital rim–internal common punctum–nasolacrimal duct opening, 2) the angle formed by the lacrimal sac and the nasolacrimal duct, 3) the length of the lacrimal sac, 4) the length of the nasolacrimal duct.Results: The measurements of the above parameters were as follows: 1) 10.2 ± 7.8° (range, −11° to +27°); 2) −6.3 ± 14.1° (range, −43° to +40°); 3) 8.9 ± 2.3 mm (range, 4.3–17.1); 4) 13.2 ± 2.7 mm (range, 5.7–20.7). Of these parameters, values of all except 3) followed a normal distribution.Conclusions:We reported anthropometric data analyzing the morphology of the lacrimal ducts using CBCT-DCG in a Japanese population.

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Transcanalicular endoscopic primary dacryoplasty for congenital nasolacrimal duct obstruction

Cited by 31 publications

References 26 publications

Usefulness of high definition sialoendoscope for evaluation of lacrimal drainage system in congenital nasolacrimal duct obstruction

Usefulness of high definition sialoendoscope for evaluation of lacrimal drainage system in congenital nasolacrimal duct obstruction

Comparison of the efficacies of 1.0mm and 1.5mm silicone tubes for the treatment of nasolacrimal duct obstruction

Analysis of lacrimal duct morphology from cone-beam CT dacryocystography in a Japanese population

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