Efficacy of Twice a Week Selamectin Application as a Treatment for Mixed Canine Scabies and Ear Mite Infestation in a Dog

A 6-month-old, male, American cocker spaniel was presented with severe pruritus, alopecia and head shaking. In physical examination generalized erythema, papules, scales and crust were observed. Otic discharge was dark-brown colored in both ear canals. After extensive dermatologic diagnostic evaluations, the infestation of scabies, ear mites, Malassezia spp, cocci were proved. Therefore, he was treated with selamectin 6 ㎎/㎏ which was applied to the skin in a single spot twice a week for 2 weeks in order to investigate the effect of selamectin on canine scabies and ear mites by this treatment protocol. When he was rechecked at 14th day after fourth being administered, scabies and ear mites wasn't seen. The dermatological signs, pruritus, papules were remarkably decreased and only slight scales were observed. After treatment of scabies and ear mites, the clavamox and koto-conazole was administered for cocci and Malassezia spp, respectively, for 1 week and topical therapy was initiated. with sebolytic and chlorhexidine shampoo once a week for 3 weeks. Two months later skin lesions were normal dermatologically and the hair was fully recovered. Despite of the expensiveness the selamectin is very effective in the dogs that infected by scabies and ear mites as this treatment protocol.

개에서 피부개선충(Canine Scabies)과 귀진드기(Ear Mite) 혼합감염에 대한 주 2회 selamectin 적용 일례

6개월령 수컷 아메리칸 코커스파니엘이 심한 소양감, 탈모 그리고 머리를 심하게 흔드는 증상으로 내원하였다 신체검사에서 전신적으로 가피. 비듬, 구진. 발적의 병변이 관찰되었다. 전반적인 피부검사결과 개선충, 귀진드기, 구균과 Malasseria의 혼합 감염으로 진단하였다. Selamectin 6mg/kg을 주 2회로 총 4회 경부 피부에 적용하였다 마지막 적용 후 14일에 피부를 재검사 하였을 때 개선충과 귀진드기는 관찰되지 않았으며 소양증과 비듬의 증상이 현저하게 개선되었다. 개선충과 귀진드기에 대한 치료가 끝난 후 구균과 Malassezia 치료를 위해 clavamox 와 ketoconazole을 3주간 투여 하였으며 동시에 sebolytic 샴푸와 chlorohexidine 샴푸를 3주동안 주 2회 실시하였다. 2개월 후 피부 증상은 현저히 감소하였고 피부 병변은 회복되었다. 이 치료법에 따른 selamectin 적용은 고가이지만 개선충과 귀진드기가 감염된 개에서 매우 효과적이며 임상적으로 scabies 감염증의 치료적 진단법으로 유용한 제제로 판단된다