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Subject: Veterinary Medicine × Author: LAKSHMI, KORSAPATI × End date: 2009 × Start date: 2007 × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    CLINICO THERAPEUTIC STUDIES OF OTITIS IN CANINES
    (SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA, 2007-10) LAKSHMI, KORSAPATI; Tirumala Rao, D.S(MAJOR); Ameer Hamza, P; Sadasiva Rao, K
    ABSTRACT : The present study was undertaken to find out the prevalence of otitis in relation to age, breed, and sex , to study the clinical signs, cultural examination of ear sample along with in vitro drug sensitivity and a therapeutic trial using topical and oral preparations.. The dogs presented at veterinary hospital, Bhoiguda and campus hospital , Rajendranagar, with the history of ear problems were examined for infection. Out of 14,400 dogs , 2500 dogs were affected with otitis which was observed to be 5.76 percent. A total of 48 dogs with otitis were studied, the condition was common in 3-6 years of age (33.3% ) followed by 6 months to 2years (27%) , 6-12 years (20.8%) and less than 6 months of age (18.7%). The results revealed that majority of cases of otitis were noticed in German shepherd followed by Mongrels, Pomeranians ,Labradors, Daschunds, Spitzs and pug, Of the 48 dogs, 30 (62.5%) were males and rest 18 (37.5%) were females. The various clinical signs of otitis were aural pruritus , ear pain, foul odour ear discharge, head tilt, erythema of pinna, alopacia ,scaling, and crusting of pinna , swelling at the base of the ear canal. Otoscopic examination of the affected ear of 48 dogs revealed erythema of ear canal, and exudates that were yellowish purulent, brownish and black thick discharge. Out of 48 dogs examined 28 had unilateral infection and 20 had bilateral infection. Conformation of ear played a major role in otitis .Of the 48 dogs, 22 (45.8%) had dropped/ pendulous, 14 ( 29.1%) had semi erect and 12 (25%) had erect ears. The result of the cultural examination of discharges resulted in isolation of bacteria viz Staphylococcus aureus in 36 cases, Streptococcus spp in 24 cases ,Pseudomonas aeruginosa in 14 cases, E.coli in 8 cases and Proteus spp in 3 cases.Apart from bacteria fungal isolates like Malassezia pachydermatitis (12) cases and Aspergillus spp ( 8 )cases were identified. The antibiotic sensitivity test showed highest sensitivity towards Ciprofloxacian ,followed by Ofloxacin, Gentamycin, Enrofloxacin, Chloramphenicol, cephotaxime, Amoxycillin\Clavulanic acid and Tetracycline in that order. The invitro disc diffusion test using antifungal discs showed the highest sensitivity towards Ketoconazole, followed by Clotrimazole, Amphotericin- B and Nystatin. The therapeutic response to antibiotics topical and oral viz Ciprofloxacin, Ofloxacin revealed highest efficacy in that order towards Ciprofloxacin followed by Ofloxacin, Similarly therapeutic response of antifungals topical and oral Ketoconazole as well as Clotrimazole, indicated Ketoconazole was more efficacious .