Newly Designed Universal Trans-punctal Rigid Lacrimal Microendoscope.
Ophthalmic Plast Reconstr Surg
; 36(6): 579-581, 2020.
Article
em En
| MEDLINE
| ID: mdl-32251177
ABSTRACT
PURPOSE:
To report the development and clinical findings of a universal trans-punctal lacrimal microendoscope design.METHODS:
In this study, we examined a unique and original "2-bend" (i.e., double-angle) rigid lacrimal microendoscope designed for universal applications for anatomical variations. The shape of endoscope was initially evaluated in 6 lacrimal systems of cadavers (4 Caucasian-cadaver lacrimal systems and 2 Asian-cadaver lacrimal systems). Second, a prospective clinical study involving 45 consecutive cases of nasolacrimal duct obstruction in Japanese patients was conducted to compare the facility and ease of use between the conventional single-bend type and our original 2-bend type trans-punctal lacrimal microendoscope for examination of the lacrimal drainage system.RESULTS:
The findings in the cadaver study revealed that original 2-bend lacrimal microendoscope, which was designed double-angled 20°-30° at 10 and 30 mm from the tip of the scope, could more easily used to insert and image all lacrimal systems, while the conventional single-bent lacrimal microendoscope was difficult to insert in subset of patients with a prominent nasal process of the frontal bone. In the clinical trial, our findings showed that 26.7% of lacrimal systems could not be passed using the conventional single-bend design, while using the 2-bend design, all cases could successfully be investigated.CONCLUSIONS:
The original 2-bend-design microendoscope was found to be effective and valuable for universal use in examination and evaluation of the lacrimal passage.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Dacriocistorinostomia
/
Aparelho Lacrimal
/
Obstrução dos Ductos Lacrimais
/
Ducto Nasolacrimal
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
Limite:
Humans
Idioma:
En
Revista:
Ophthalmic Plast Reconstr Surg
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Estados Unidos