Dacryocystomaxillorhinostomy for chronic dacryocystitis in a dog

Abstract

A 10-year-old female spayed Vizsla had intermittent mucoid ocular discharge from the right eye for 7 years. History, clinical findings, imaging studies, and culture and histopathology results confirmed chronic dacryocystitis with granuloma. A dacryocystomaxillorhinostomy was performed to preserve the functional portions of the nasolacrimal system remaining in this patient, as well as to promote healing of the lacrimal sac granuloma and secondary infection. Complete resolution of the clinical abnormalities was achieved, and the dog remains healthy 3 years postoperatively.

Corneal-Protective Effects of an Artificial Tear Containing Sodium Hyaluronate and Castor Oil on a Porcine Short-Term Dry Eye Model

“…There are plenty of artificial tear substitutes for lacrimomimetic therapy in animals with an absence or a reduction of lacrimal secretions, and they generally contain one or more ingredients that can replace deficiencies of tear components [ 9 , 11 ]. It is well known that SH has mucinomimetic properties with viscosity and wettability and is a useful corneal protectant in animals with KCS [ 9 , 11 , 15 , 18 , 20 , 23 ]. Judging from our results, 1% SH may be available as an artificial tear.…”

“…Artificial tears are essential agents for adjunctive therapy to lacrimostimulation in animals with tear film abnormalities, such as keratoconjunctivitis sicca (KCS) [ 9 , 11 , 12 , 18 , 20 ]. Unfortunately, lacrimomimetic therapy does not always achieve sufficient responses in spite of there being plenty of available tear substitutes [ 9 , 11 , 18 ], because frequent application of artificial tears, often more than 6 times per day, by the owners of animals with KCS is unattainable [ 9 , 11 , 18 ]. Owing to the lack of optimal artificial tears, many veterinarians may feel frustration when choosing artificial tears for lacrimomimetic therapy for KCS patients, suggesting that the prescription of artificial tears should be continuously improved in order to provide infrequent lacrimomimetic therapy to animals having tear film abnormalities.…”

“…Sodium hyaluronate (SH), which is a viscoelastic substance with mucinomimetic properties, has been used as a good corneal protectant in both humans and animals [ 1 , 9 , 11 , 18 , 20 ]. In addition, it is known that castor oil (CO) is one of the lipid products that not only improve stability, thickness and homogeneity of the tear film lipid layer, but also inhibit evaporation of aqueous tear from the corneal surface [ 10 , 14 , 16 ].…”

Bilateral nasolacrimal duct atresia in a cria

“…Dacryocystorhinography (DCRG) has been used in numerous species including camelids. 2,50,51 Other modalities used to evaluate the lacrimal outflow system include endoscopy, 41,52 ultrasound, 31 scintigraphy, 53 computed tomography (CT) 34,[54][55][56] and magnetic resonance imaging (MRI). 34 Surgical procedures used for establishing alternative outflow include canaliculorhinostomy, 35 canaliculodacryocystorhinostomy, 57 external dacryocystorhinostomy (DCR), 58 endoscopic laser DCR, 59 dacryocystomaxillorhinostomy, 54,60 CRH, 14,61-64 CMS, 14,33 and conjunctivobuccostomy.…”

Alleviation of Epiphora by Canaliculosinostomy into the Caudal Maxillary Sinus in the Horse

“…The first reported surgical intervention for nasolacrimal duct obstruction involved using a catheter to create and maintain a nasal puncta which was absent . Other described techniques include endonasal dacryocystorhinostomy, use of an infant feeding tube to maintain duct patency in alpacas, and relocation of the duct into the nasal cavity in dog . Further to this, creation of a fistula from the medial canthus into the maxillary sinus has been described using either an open approach or using fishing line to maintain fistula integrity .…”