Functional endoscopic sinus surgery (FESS) is an effective and safe surgical technique, which revolutionized the surgical management of nasal cavity and paranasal sinus diseases. The intimate connection between paranasal sinuses and the orbit places the orbital content at a risk of injury during sinus surgery, especially that of ethmoid sinuses. The orbit, the optic nerve, extraocular muscles and the lacrimal drainage system could be damaged during FESS. The risk of injury correlates to anatomical variations, degree and severity of disease, previous procedure results, and surgical experience. Ophthalmic complications can vary in severity from minor ones, such as localized hematomas, to extremely dangerous, such as optic nerve injury, that could lead to complete blindness. In order to minimize the risk of such complications, it is necessary to consider probable anatomic variations of paranasal sinuses and orbit, which are to be detected by CT scan before surgery.
Introduction. Radioactive iodine therapy after thyroidectomy is the standard of differentiated thyroid cancer treatment in the modern world. Main dose-dependent side effects described in the literature include: sialadenitis, xerostomia, taste and/or odor loss, swelling of surrounding tissues. Ophthalmic complications are rarely reported. Aim. To assess the lacrimal system condition in patients after radioactive iodine therapy for thyroid cancer. Material and methods. The study included 17 patients (34 eyes). There were female patients aged 19 to 43 years (mean age was 31 years) who underwent a course of radioactive iodine therapy for thyroid cancer. All of them complained of periodic or constant tearing in the period from 2 months to 1 year after therapy course. In four patients, there was a permanent or periodic mucopurulent discharge when pressing on the lacrimal sac area. All patients underwent a standard ophthalmological examination, including visual acuity testing, anterior segment biomicroscopy, ophthalmoscopy, and tear production tests. Dye disappearance test, Jones I and II tests, lacrimal pathways irrigation, and, if necessary, cone-ray computer tomography with preliminary lacrimal pathways contrasting were performed to evaluate the tear outflow abnormalities. Results. Tear production disorders were detected in 20 eyes (58.8%) (among them, moderate dry eye syndrome was diagnosed in 3 cases); tear outflow pathology was revealed in 14 eyes (41.2%) (namely naso-lacrimal duct obstruction and stenosis, and chronic purulent dacryocystitis). For patients with tear production pathology artificial tears were prescribed, and endoscopic endonasal dacryocystorhinostomy was performed in cases of tear outflow disturbances. Conclusion. The use of radioactive iodine in doses exceeding 80 mCi leads to the development of lacrimal system pathology: dry eye syndrome of various severity, and tear outflow disorders. Lacrimal system pathology significantly worsens the patient's quality of life, and the prophylaxis of these diseases before the radioactive iodine therapy course remains the imminent key problem. (For citation: Beldovskaya NYu, Karpishchenko SA, Baranskaya SV, Karpov AA. Lacrimal system pathology in patients with malignant thyroid tumors after radioactive iodine therapy, and its correction methods. Ophthalmology Journal. 2017;10(4):13-17. doi: 10.17816/OV10413-17).
The pathology of upper lacrimal pathways associated with cicatrical strictures and obliteration, anatomical features of this zone is an essential problem of epiphora occurrence. The diseases of nasal cavity and paranasal sinuses play a significant role in the etiopathogenesis of this kind of epiphora. The search of new methods of preventing or eliminating epiphora, also caused by rinological pathology, is reasonable. Aim: To estimate the efficacy of drainage implant HEALAFLOW (Aptissen, Switzerland) in patients with complains on epiphora and concomitant nasal cavity pathology. Material and methods. 29 patients (50 eyes) with complains on permanent (more than 6 months) epiphora were under the supervision. Ge nerally accepted ophthalmological, dacryological, rhinological examinations, including cone-ray computer tomography of the paranasal sinuses with preliminary contrast of the lacrimal pathways were carried out. Patients were divided into two groups. 15 people (28 eyes) composed the main group (I). 14 people (22 eyes) formed a control group (II). In I group the drainage implant HEALAFLOW (Aptissen, Switzerland) was inserted in 1 day after operation aimed on elimination of nasal cavity pathology. Patients of the II group instillation of Tobradex according to the scheme and moistening drops were prescribed. Results. According to dacryological examination 29 patients (50 eyes) with complains on epiphora had normal passive lacrimal pathway passablness, but delayed or negative results of probes characterizing active passablness. All 29 patients had a rhinological pathology, which was eliminated by the otorhinolaryngologist with the operation at the first stage. In I group 9 patients noticed an increased epiphora immediately after the administration of HEALAFLOW in lacrimal pathway, which lasted during the first 24 hours after the procedure. Based on the results of the follow-up examination, after 3 months, all patients showed an improvement, expressed in the absence or decrease of epiphora. It should be noted that in the I group (after the insertion of the implant) the positive effect was more expressed. In the I group 12 of 15 patients didn’t have epiphora and in 3 patients it decreased. In the II group — 7 patients didn’t have epiphora and in 6 patients it decreased. Conclusion. Insertion of drainage implant HEALAFLOW in the lacrimal pathway after elimination of rhinological pathology in patients with complains on epiphora is safe, well tolerated and produces a positive drainage effect. This allows to recommend the implant to patients with tear-off device abnormality in the complex treatment of tear outflow disorders.
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