Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Efficacy of Weekly 0.1% Amitraz Dip with 4% Chlorhexidine Shampoo on Juvenile Onset Generalized Pyodemodicosis Unresponsive to Ivermectin Therapy in Japanese Chin Dog

Japanese Chin 종에서 발생한 Ivermectin에 반응을 보이지 않은 전신성 농성 모낭충 감염증에 대한 0.1% Amitraz와 4% Chlorhexidine의 국소치료 일례

  • Jeong, Hyo-Hoon (Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University) ;
  • Jeong, A-Young (Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University) ;
  • Hoh, Woo-Pil (Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University) ;
  • Eom, Ki-Dong (Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University) ;
  • Lee, Keun-Woo (Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University) ;
  • Oh, Tae-Ho (Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyungpook National University)
  • Published : 2003.06.01
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Abstract

A case of juvenile onset generalized demodicosis of one year old, intact female Japanese Chin dog weighing 3.1kg was presented to the Small Animal Clinic of the College of Veterinary Medicine of Kyungpook National University. The diagnosis was made based on the physical examination, deep skin scrapings, hematology, serum chemistry, endocrinologic evaluation and bacterial culture. Numerous D. canis mites of various stages were observed in multiple skin scraping samples. CBC, serum chemistry, $T_3$, $T_4$ and free $T_4$ values were within normal range and Staphylococcus intermedius was isolated in bacterial culture of pustules. The dog was healthy other than skin lesions at the presentation. The three different treatment protocols were tried for the case. No clinical improvement was observed during 13 weeks of orally given daily basis ivermectin therapy at 600ug/kg and 2 weeks of spot-on weekly basis selamectin therapy at 30 mg/kg with cephalexin given orally twice a day at 25 mg/kg. However, a remarkable remission was seen by 0.1% amitraz dip on weekly basis with 4% chlorhexidine bath given twice a week. The secondary staphylococcal infection and accompanied pruritus was almost disappeared in two weeks and she was recovered clinically normal in 9 weeks of therapy. The therapy was continued for 4 more weeks to prevent relapse. The dog is clinically normal and being monitored for development of any abnormal dermatological signs for the time being.

중성화 수술을 받지 않은 3.1 kg의 1년령 암컷 일본 찡견이 자견발생모낭충증의 전형적인 증상으로 경북대학교 수의과대학 부속동물병원에 내원하였다. 일반적인 신체검사, 피부박리검사, 혈액화학 검사, 내분비검사와 세균배양검사 등을 실시하였다. 내원 당시 피부 병변을 제외한 환축의 상태는 양호하였으며, 혈액화학치, $T_3$, $T_4$, $T_4$는 모두 정상이었다. 그러나, 피부박리검사에서 다수의 모낭충이 관찰되었고, 농포를 이용한 세균배양 결과 구균이 검출되어 속발성 표재성농피증온 동반한 자견발생모낭충증으로 확진하였다. 치료를 위하여 13주간 매일 1회 600 $\mu\textrm{g}$/kg의 ivermectin을 매일 2회 25mg/kg의 cephalexin과 함께 투여하였으나 임상증강이 호전되지 않았으므로 일주일 간격으로 30 mg/kg의 selamectin을 cephalexin과 한께 국소 누여하는 방법을 실험적으로 2주간 실시하였다. 그러나, 임상증상이 오히려 더 악화되어 주 1회 0.1% amitraz dip을 주 2회 4% chlorhexidine 샴푸와 함께 실시하였다. 그 결과, 환축은 급속도로 호전되어 속발성 농피증에 의한 피부병변과 이에 동반된 소양증은 치료 실시 후 2주 경에 거의 사라졌으며 9주 경에는 피부박리검사에서 모낭충이 검출되지 않았을 뿐만 아니라 환축의 피모도 거의 정상으로 회복되었다. 재발을 막기 위하여 피부박리검사에서 음성 격과를 얻은 후에도 4주간 더 치료하였다. 현재 환축은 임상적으로 정상이며, 모낭충증의 재발여부를 관찰 중에 있다.

Keywords

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