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86 2. Topical antibacterials: are not listed here, almost every veterinarian will have their own “favourite”. The combination of antibiotic with a low penetration steroid is frequently a helpful treatment modality. The inflammatory response can be exuberant in horses and can actually complicate the resolution of the foliculitis. It can also play a particularly helpful role in those horses which have allergies as an underlying predisposing cause. 3. Macrolids such as erythromycin and lincomycin may cause severe diarrhea due to their effects on bacterial flora in the large colon. Tetracyclines also should be used with caution. ACVSC Proceedings Dermatology Chapter Science Week 2005
Proper dosage and proper duration are important for the success of antibacterial therapy. Although many bacterial infections in the horse respond to short courses of antibiotics, longer courses may be needed in particular if the folliculitis has extended to a furunculosis. The likelihood of this occurrence increases with the duration of the (untreated) disease and also with the pathogenicity of the causative agent(s). For example it is more likely to occur early in a dermatophyte associated folliculitis than an allergic, non-traumatised one. Selected antibiotics in equine dermatology: Drug Formulation Indications Adverse effects Dose Penicillin G 300,000 Infections with most gram-positive and Hypersensitivity 20,000-40,000IU/kg (10 ml/70- IU/ml for gram-negative cocci (not penicillinase- reactions 150 kg bodyweight) IM q 12h injection producing strains), Clostridium sp., Fusobacterium and Actinomyces. Penicillin V 500-mg Infections with Actinomyces, most Gastrointestinal 40-60 mg/kg (10 tablets/100kg tablets spirochetes and Gram-positive and signs with oral bodyweight) q 8 h Gram–negative cocci, which do not administration, produce penicillinase. hypersensitivity reactions Trimethoprim/ 800mg Infections with Gram-positive bacteria Transient 20-30 mg/kg (1 tablet/30-50 kg sulfadiazine trimethoprim (streptococci, staphylococci). Many pruritus, bodyweight) q 12-24 h; 15-20 / 160mg Gram-negative organisms of the family diarrhea, mg/kg (10 ml/250-350 kg sulfadiazine, Enterobacteriaceae are also susceptible hypersensitivities bodyweight) IV q 12-24 h 48% sterile (but not Pseudomonas aeruginosa). ,blood dyscrasias Chlor-amphenicol injection 1000mg Infections with most gram-positive and Bone marrow 50 mg/kg q 8 h (10 tablets/200 tablets, 100 gram-negative cocci, Clostridium sp., toxicity kg bodyweight) mg/ml sodium succinate as Fusobacterium and Nocardia. powder injection for Cephalexin 1000-mg Infections with streptococci, Vomiting and 20-30 mg/kg q 8 h tablets staphylococci,Actinobacillus, diarrhea; very Corynebacteria (except C. equi) rarely excitability, tachypnea or Enrofloxacin 136-mg blood dyscrasias Cartilage 2.5-5 mg/kg q 24 h tablets erosions growing foals in Taken from, with permission, Equine Dermatology Made Easy, Teton New Media, author Dr Ralf Mueller. ACVSC Proceedings Dermatology Chapter Science Week 2005 87
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Australian College of Veterinary Sc
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Australian College of Veterinary Sc
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3.00 Afternoon tea 3.30 How I treat
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Dr Jennifer A. Charles BVSc MVS Dip
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Scientists in Feline Medicine in 19
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IgE-bearing cells have been demonst
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years, median age 6.5 years, with a
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dusts, grain smuts, moulds, danders
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References: Evans AG, Paradis MR, &
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Comparatively simple, cheap and eff
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TABLE 1: CURRENT ALLERGENS SELECTED
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AmericanCockroach Cockroach mix
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Patient Preparation Drug Withdrawal
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Each injection site is visually exa
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References 1. Scott DW, Miller WH:
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Intradermal Testing (IDT) in Horses
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TABLE 2 Additional allergens used i
Page 35 and 36: Allergen Positive reactions Mosquit
Page 37 and 38: much higher and corresponded to the
Page 39 and 40: and this and other uncontrolled tri
Page 41 and 42: Introduction Diagnostic Approach to
Page 43 and 44: Wheals vary in size and shape and q
Page 45 and 46: References Evans AG, Paradis MR & O
Page 47 and 48: Introduction: Equine Chronic Urtica
Page 49 and 50: Acute treatment - Epinephrine 1:100
Page 51 and 52: anecdotal success with use of human
Page 53 and 54: an 80:20 mixture of evening primros
Page 55 and 56: Clinical approach to the horse with
Page 57 and 58: identify plants in a pasture that m
Page 59 and 60: Equine sarcoidosis Sonya Bettenay T
Page 61 and 62: described as a possible feature of
Page 63 and 64: others 2001), isotretinoin(Waldinge
Page 65 and 66: 12. LeGall, F., Loeuillet, L., Dela
Page 67 and 68: Introduction The equine sarcoid: an
Page 69 and 70: Clinical Presentation Small fibrous
Page 71 and 72: Assessment should be made on the fo
Page 73 and 74: (ix)Bone becomes devitalized if inc
Page 75 and 76: and mitomycin C have been used. All
Page 77 and 78: Owen LN & Barnett KC (1983) - Treat
Page 79 and 80: any anatomic location but commonly
Page 81 and 82: epidermis may be histologically nor
Page 83 and 84: References D.C. Knottenbelt, S. Edw
Page 85: indicated. Each sample for culture
Page 89 and 90: 2. Affect on the horse and 3. Affec
Page 91 and 92: Affected horses usually scratch and
Page 93 and 94: • Cattle ear tags impregnated wit
Page 95 and 96: How I treat: equine pemphigus folia
Page 97 and 98: Treatment of pemphigus foliaceus in
Page 99 and 100: SCOTT, D.W., WALON, D.K., SLATER, M
Page 101 and 102: Diagnosis History of access of hors
Page 103 and 104: These vaccines are not manufactured
Page 105 and 106: References Alfaro AA & Mendoza L (1
Page 107 and 108: y a variety of fungal metabolites.
Page 109 and 110: Authors recommendations: 1. Both Im
Page 111 and 112: chorioptic mange by the author (Lit
Page 113 and 114: Clinical Disease The clinical resul
Page 115 and 116: treatment options have been used. P
Page 117 and 118: Notes ACVSC Proceedings Dermatology
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