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

Author(s):  
Jutaro Nakamura ◽  
Tomoyuki Kamao ◽  
Arisa Mitani ◽  
Nobuhisa Mizuki ◽  
Atsushi Shiraishi

Abstract 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 significantly higher in the LD group at p = 0.045, 0.052, and 0.046, respectively.

2022 ◽  
Author(s):  
Jutaro Nakamura ◽  
Tomoyuki Kamao ◽  
Arisa Mitani ◽  
Nobuhisa Mizuki ◽  
Atsushi Shiraishi

Abstract 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.


2022 ◽  
Author(s):  
Jutaro Nakamura ◽  
Tomoyuki Kamao ◽  
Arisa Mitani ◽  
Nobuhisa Mizuki ◽  
Atsushi Shiraishi

Abstract 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.


2021 ◽  
Author(s):  
Jutaro Nakamura ◽  
Tomoyuki Kamao ◽  
Arisa Mitani ◽  
Nobuhisa Mizuki ◽  
Atsushi Shiraishi

Abstract Purpose: We compared the difference in postoperative patency rates due to the differences in the diameter of silicone tubes used for bicanalicular intubation for the treatment of nasolacrimal duct obstruction (NLDO). Methods: Patients diagnosed with NLDO at Ehime University Hospital between August 2013 and November 2020 who underwent endoscopic-assisted nasolacrimal duct intubation (ENDI) were included in the study. The patients involved were 130 cases and 157 sides (age 72.6 ± 11.3 years) who were eligible for follow-up for more than six months after the removal of the lacrimal silicone tube. The postoperative recurrence rate was compared retrospectively based on the difference in tube caliber. 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 survival rates of the two groups at one year after tube removal were compared by Kaplan-Meier's curve and Restricted mean survival time (RMST) method with τ = 365 days. Results: There were no significant differences in age, gender, or observation period after tube removal between the two groups. Meanwhile, the preoperative occlusion period was significantly longer in the ND group. The recurrence rate after tube removal was significantly lower in the LD group (12 / 85 sides, 14.1%) compared to the ND group (27 / 72 sides, 37.5%) (p = 0.001). The patency rate at one year after removal of the lacrimal tube was 0.857 (0.754-0.919) in the LD group and 0.739 (0.617-0.828) in the ND group. In comparing patency rates by the RMST method at τ = 365 days, the RMST difference, RMST ratio, and RMTL ratio were significantly higher in the LD group at p = 0.045, 0.052, and 0.046, respectively. Conclusion: Regarding the bicanalicular silicone tube intubation, the patency rate at one year after removal was significantly higher in the thicker tubes with a diameter of 1.5 mm compared with that of a diameter of 1.0 mm for the treatment of NLDO.


2021 ◽  
Vol 28 (06) ◽  
pp. 804-807
Author(s):  
Mohammad Alam

Objective: To analyse the efficacy of non-surgical Crigler massage for treatment of congenital nasolacrimal duct obstruction in infants below one year age. Study Design:  Setting: Khyber Medical University Institute of Medical Sciences (KMU-IMS) KDA Teaching Hospital Kohat. Period: April 2014 to June 2019.  Materials & Methods:  on Non-Surgical Crigler massage for conservative   treatment of congenital nasolacrimal duct obstruction in infants below one year age. Proper proforma was designed for documentation of patients and their follow up. Consents were taken from their parents. 93 patients with age range of 2-6 months with congenital nasolacrimal duct obstruction were included in the study out of which 51(54.83%) were male and 42(45.16%) were female. 79(84.94%) patients had unilateral while 14(15.05%) patients had bilateral congenital nasolacrimal duct obstruction. So total 107 eyes with congenital nasolacrimal duct obstruction were included. Parents were trained and educated for conservative non-surgical Crigler massage of the lacrimal sacs along with topical antibiotics. Parents were instructed to do 8-10 massage four times a day. Patients were followed up to one year of age. 11 patients were lost from complete follow up in which 9 had unilateral while 2 patients had bilateral congenital nasolacrimal duct obstruction. Cumulatively 13 eyes were missed from follow up. Final results of remaining 82 patients with 94 eyes were analysed. Results: Out of 94 eyes epiphora was abolished with negative regurgitation test in 68(72.34%) patients at the end of one year while in 26(27.65%) the procedure was failed. Conclusion: Non-surgical conservative Crigler massage is very successful in management of congenital nasolacrimal duct obstruction.


QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Rana Atia ◽  
Magda Samy ◽  
Sheriff Elwan ◽  
Thanaa Helmy ◽  
Ashraf Shaat ◽  
...  

Abstract Study design; Pilot randomized controlled study. Objective To compare success rates of endoscopic endonasal dacryocystorhinostomy and nasolacrimal duct intubation in congenital nasolacrimal duct obstruction (NLDO) in a trial to define the superiority of either technique. Patients & Methods Sixty-six eyes of 61 patients were diagnosed as having epiphora and mucopurulent discharge due to congenital NLDO. The patients were randomly divided into two groups; Group A; 33 eyes of 28 patients (treated by probing and silicone intubation only (NLDI)) and Group B; 33 eyes of 33 patients (treated by endoscopic endonasal dacryocystorhinostomy and silicone tube intubation (EDCR). All tubes were removed 6 months after the operation. Results The success rate, defined as complete resolution of clinical symptoms and signs after 6 months of follow up, was 72.7 % in Group A and 81.8% in Group B. Although the success rate was higher in Group B, yet the difference was shown to be statistically nonsignificant. Preoperative symptoms were assessed postoperatively after tube removal. Complete cure had a higher rate of occurrence in Group B than in Group A (27eyes (81.8%) versus 25 eyes of 22 patients (75.8%) respectively). Postoperative positive fluorescein dye disappearance test (FDDT) after tube removal was more in Group B than in Group A (27 eyes (81.8) versus 24 eyes of 21 patients (72.7 %) respectively). In Group A, silicone tubes had to be repositioned due to prolapse in 3 eyes of 3 patients (9.1%) and had to be removed early in 3 eyes of 3 patients (9.1%) due to failure of repositioning. In Group B, silicone tubes did not require early tube extraction before the date of removal in any of the patients. Intraoperative, there was only one case (3.0%) of fat prolapse during EDCR in Group B with no subsequent postoperative complications. Hemostasis did not represent a problem in any of the patients. Postoperative complications occurred more in Group B than Group A (21 eyes (63.6%) versus 13 eyes of 13 patients (39.4 %) respectively). Late complications occurred more in Group B than Group A (18 eyes (54.5%) versus 12 eyes of 12 patients (36.4%) respectively) in the form of persistent epiphora and tube prolapse. Conclusion The success rate of pediatric EDCR was higher than that of pediatric NLDI. The difference was statistically non-significant. Complications were comparable between the two groups. The study, being pilot in its comparative aspect between endoscopy and intubation, opens the horizon for further study on a larger group that probably will expand this difference.


2009 ◽  
Vol 123 (11) ◽  
pp. 1226-1228 ◽  
Author(s):  
S Agarwal

AbstractObjective:To evaluate the results of endoscopic dacryocystorhinostomy performed to treat acquired nasolacrimal duct obstruction.Design:Retrospective analysis of the outcome of endoscopic dacryocystorhinostomy performed in the conventional manner (i.e. without power instruments or laser) to treat acquired nasolacrimal duct obstruction.Subjects:Outcomes for 300 patients with acquired nasolacrimal duct obstruction were evaluated. Cases with congenital or traumatic blockages were excluded. All the cases were evaluated for nasolacrimal duct blockage by the syringing and regurgitation test. Surgery was performed under local anaesthesia with sedation. Follow up was conducted by syringing and nasal endoscopy, up to one year. Results were compared with published data for endoscopic and external dacryocystorhinostomy.Results:Outcomes were evaluated subjectively using patient symptoms, syringing results and endoscopic appearance. All cases were symptom-free following endoscopic dacryocystorhinostomy. Revision surgery was performed in 18 cases. Stents were placed in 10 patients, of which two developed granulations. Septoplasty was performed in 25 cases to gain access to the lacrimal sac area.Conclusion:The results were comparable with published data for endoscopic and external dacryocystorhinostomy.


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