Journal of the American Veterinary Medical Association · 2024
Nasolacrimal duct obstruction prevalence is 0.3% among alpacas evaluated with ophthalmic disease at a veterinary teaching hospital between 2000 and 2023.
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Baker Madison R, Niehaus Andrew J, Miesner Matt D, Lozier Joseph W, Jordan Brianna A, Carman Michelle K, Clark Jennifer, Anderson David E
Аннотация
OBJECTIVE: To examine the prevalence of nasolacrimal duct (NLD) obstruction in hospital populations and assess signalment, diagnostics, and clinical approaches for alpacas and llamas diagnosed with NLD atresia or obstruction.
ANIMALS: 29 alpacas and 2 llamas.
CLINICAL PRESENTATION: Medical records were reviewed to identify camelids with NLD evaluated between 2000 and 2023. Signalment, history, physical examination data, diagnosis, and treatments were recorded. Follow-up information was gathered via phone and email questionnaire. Data were evaluated to determine prevalence and describe signalment and treatments for NLD disease.
RESULTS: 31 camelids met the inclusion criteria. A total of 8,027 alpacas and 1,998 llamas were seen within the study period at 1 teaching institution. The prevalence of NLD obstruction for this population of alpacas was 0.3% (26/8,027). Nineteen of 31 (61%) camelids presented at 1 year of age or younger. The most common physical exam finding was ocular discharge (68%). The most common diagnosis was NLD atresia (16/31 [51%]). Patency was established by surgical opening or lavage of the NLD. Long-term follow-up was available for 13 alpacas and 2 llamas, of which 11 (73%) had successful outcomes.
CLINICAL RELEVANCE: Results indicate that NLD obstruction is a condition that most commonly affects alpacas < 1 year of age and is associated with a good prognosis for treatment success.
ANIMALS: 29 alpacas and 2 llamas.
CLINICAL PRESENTATION: Medical records were reviewed to identify camelids with NLD evaluated between 2000 and 2023. Signalment, history, physical examination data, diagnosis, and treatments were recorded. Follow-up information was gathered via phone and email questionnaire. Data were evaluated to determine prevalence and describe signalment and treatments for NLD disease.
RESULTS: 31 camelids met the inclusion criteria. A total of 8,027 alpacas and 1,998 llamas were seen within the study period at 1 teaching institution. The prevalence of NLD obstruction for this population of alpacas was 0.3% (26/8,027). Nineteen of 31 (61%) camelids presented at 1 year of age or younger. The most common physical exam finding was ocular discharge (68%). The most common diagnosis was NLD atresia (16/31 [51%]). Patency was established by surgical opening or lavage of the NLD. Long-term follow-up was available for 13 alpacas and 2 llamas, of which 11 (73%) had successful outcomes.
CLINICAL RELEVANCE: Results indicate that NLD obstruction is a condition that most commonly affects alpacas < 1 year of age and is associated with a good prognosis for treatment success.