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Intranasal infusion of enilconazole for treatment of sinonasal aspergillosis in dogs

Jean-Luc ZonderlandDepartment of Clinical Sciences of Small and Large Animals, Faculty of Veterinary Medicine, University of Liège, B-4000 Liège, Belgium.

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Christoph K. StörkDepartment of Clinical Sciences of Small and Large Animals, Faculty of Veterinary Medicine, University of Liège, B-4000 Liège, Belgium.

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Jimmy H. SaundersDepartment of Clinical Sciences of Small and Large Animals, Faculty of Veterinary Medicine, University of Liège, B-4000 Liège, Belgium.
Present address is Department of Medical Imaging, Faculty of Veterinary Medicine, Ghent University, B-9820 Merelbeke, Belgium.

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Annick J. HamaideDepartment of Clinical Sciences of Small and Large Animals, Faculty of Veterinary Medicine, University of Liège, B-4000 Liège, Belgium.

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Marc H. BalligandDepartment of Clinical Sciences of Small and Large Animals, Faculty of Veterinary Medicine, University of Liège, B-4000 Liège, Belgium.

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Cecile M. ClercxDepartment of Clinical Sciences of Small and Large Animals, Faculty of Veterinary Medicine, University of Liège, B-4000 Liège, Belgium.

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Abstract

Objective—To determine effectiveness of infusion of 1 and 2% enilconazole for treatment of nasal and sinusal aspergillosis, respectively, in dogs.

Design—Case series.

Animals—26 client-owned dogs with aspergillosis.

Procedure—All dogs had typical clinical signs of aspergillosis and rhinoscopically visible intrasinusal or intranasal fungal plaques associated with turbinate destruction. During rhinoscopy, affected nasal cavities and frontal sinuses were debrided meticulously. Nineteen dogs (group A) were treated with 1% enilconazole by use of a modified noninvasive infusion procedure. Seven dogs (group B) were treated with 2% enilconazole via catheters that were placed via endoscopic guidance into the frontal sinuses. All dogs underwent follow-up rhinoscopy for determination of further treatment until cure was established.

Results—Age, disease duration, clinical score, and rhinoscopic score were similar for both groups before treatment. In group A, 17 of 19 dogs were cured; 9, 6, and 2 dogs were cured after 1, 2, or 3 treatments, respectively. The remaining 2 dogs were euthanatized before the end of the treatment protocol. In group B, all dogs were cured; 6 dogs and 1 dog were cured after 1 or 2 treatments, respectively. Only minor adverse effects such as nasal discharge, epistaxis, and sneezing developed.

Conclusions and Clinical Relevance—After extensive rhinoscopic debridement, 1 and 2% enilconazole infused into the nasal cavities and the frontal sinuses, respectively, were effective for treatment of aspergillosis in dogs. Intrasinusal administration via endoscopically placed catheters appeared to require fewer infusions for success. Follow-up rhinoscopy is strongly advised. (J Am Med Vet Assoc 2002;221:1421–1425)

Abstract

Objective—To determine effectiveness of infusion of 1 and 2% enilconazole for treatment of nasal and sinusal aspergillosis, respectively, in dogs.

Design—Case series.

Animals—26 client-owned dogs with aspergillosis.

Procedure—All dogs had typical clinical signs of aspergillosis and rhinoscopically visible intrasinusal or intranasal fungal plaques associated with turbinate destruction. During rhinoscopy, affected nasal cavities and frontal sinuses were debrided meticulously. Nineteen dogs (group A) were treated with 1% enilconazole by use of a modified noninvasive infusion procedure. Seven dogs (group B) were treated with 2% enilconazole via catheters that were placed via endoscopic guidance into the frontal sinuses. All dogs underwent follow-up rhinoscopy for determination of further treatment until cure was established.

Results—Age, disease duration, clinical score, and rhinoscopic score were similar for both groups before treatment. In group A, 17 of 19 dogs were cured; 9, 6, and 2 dogs were cured after 1, 2, or 3 treatments, respectively. The remaining 2 dogs were euthanatized before the end of the treatment protocol. In group B, all dogs were cured; 6 dogs and 1 dog were cured after 1 or 2 treatments, respectively. Only minor adverse effects such as nasal discharge, epistaxis, and sneezing developed.

Conclusions and Clinical Relevance—After extensive rhinoscopic debridement, 1 and 2% enilconazole infused into the nasal cavities and the frontal sinuses, respectively, were effective for treatment of aspergillosis in dogs. Intrasinusal administration via endoscopically placed catheters appeared to require fewer infusions for success. Follow-up rhinoscopy is strongly advised. (J Am Med Vet Assoc 2002;221:1421–1425)