Dacryocystitis Clinical Trial
Official title:
Long Term Follow up of Nasolacrimal Intubation in Adults With Mild Epiphora
For patients with chronic epiphora, Dacryocystorhinostomy is currently the gold standard
treatment, with a success rate of 80-90% according to literature. Another available
treatment, which is far less used, in nasolacrimal intubation, using a silicone tube.
In our study, we would like to find the efficacy of nasolacrimal duct intubation, which was
performed in our medical center on a few hundred patients with mild epiphora.
Study hypothesis: nasolacrimal intubation in adults, with a clinically mild epiphora, is
close in it's efficacy to the Dacryocystorhinostomy procedure.
Under normal conditions, the amount of tears excreted from lacrimal glands to the eye is
equal to the amount drained through the tear duct. Epiphora in adults usually involves a
blockage of the lacrimal sac or the nasolacrimal duct. Epiphora causes tearing in patients,
which can be treated sympthomatically in a conservative way (antibiotic treatment, probing
of the tear duct, pressure irrigation of the tear duct) or therapeutic in an invasive way.
The invasive treatment includes one of the following:
1. Dacryocystorhinostomy - surgery for reconstructing an alternative path for tear
drainage.
2. Nasolacrimal intubation - inserting a silicone tube through the tear duct. The tube is
usually removed after 3-6 months.
Currently, there are only a few reports regarding the efficacy of nasolacrimal intubation,
all with a small number of research subjects. Also, these reports have stratified the
patients according to the location of the tear duct blockage, and didn't take into account
the severity of the blockage (ie the severity of symptoms) prior to performing the
intubation.
In our research, we would like to find the efficacy of nasolacrimal intubation which was
performed in our medical center on a few hundred patients with mild epiphora, and to compare
in with the efficacy of the Dacryocystorhinostomy - which is 80-90% according to literature.
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Observational Model: Cohort, Time Perspective: Retrospective
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