New combination for the therapy of canine otitis externa I Microbiology of otitis externa

Kiss, Gergely; Radvanyi, S.; Szigeti, G.

doi:10.1111/j.1748-5827.1997.tb02987.x

Cited by 71 publications

(93 citation statements)

References 12 publications

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“…Kiss et al (1997) reported high (63%) prevalence of Malassezia yeasts in otitis of animals 2-5 years old. Contrarily, according to our study the risk group seems to be the group of geriatric animals, with 63.3% prevalence of Malassezia infection.…”

Section: Discussionmentioning

confidence: 97%

Prevalence of Malassezia pachydermatis in dogs with suspected Malassezia dermatitis or otitis in Slovakia

et al. 2011

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The aim of the study was to evaluate the prevalence of yeast Malassezia pachydermatis in dogs from Slovakia in relation to different predisposition factors (sex, age, body localisation, hair type, and season). Samples of ear swabs (58) and dermal swabs (131) from 147 dogs with clinical symptoms of suspected yeast dermatitis and/or otitis, were examined between June 2005 to June 2007. Relatively higher prevalence of M. pachydermatis was found in samples taken from males (45.2%) than in females (35.2%), and in geriatric dogs (63.6%) than in young (42.5%) or adult (38.5%) dogs. Malassezia pachydermatis was isolated more often from ear swabs (44.8%) than from skin swabs (38.9%). Prevalence of M. pachydermatis was significantly higher (p < 0.05) in samples from the trunk area (60.3%) than in samples from other skin areas. Significantly higher prevalence was found in samples from long-haired (51.5%) and short-haired (45.9%) dogs compared to smooth-haired (21.4%) dogs. The prevalence was relatively higher in the samples taken in autumn (52.6%), than the other seasons: spring (36.1%), summer (27.3%), winter (45.7%); those differences were not significant. Malassezia pachydermatis is one of the most frequent yeasts isolated in dogs. Knowledge of factors predisposing to development of infection is valuable attribute of the correct diagnostic approach and case management.

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Section: Discussionmentioning

confidence: 97%

Prevalence of Malassezia pachydermatis in dogs with suspected Malassezia dermatitis or otitis in Slovakia

et al. 2011

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“…Many research groups have studied culture and sensitivity characteristics 4,13,20,25,33,34 , but the results (and, indeed, results from individual cases) are quite difficult to translate into definite treatment recommendations. Agreement between cytology and culture is not always good.…”

Section: Additional Procedures For Chronic and Recurrent Otitismentioning

confidence: 99%

“…Inappropriate and/or long-term use of antibacterial agents can cause bacterial resistance; some authors therefore recommend that more potent and broad-spectrum antibiotics such as gentamicin and chloramphenicol should not be used as first-choice treatments 18 . 25,36,58 . Ketoconazole is considered the most effective of these.…”

Section: Antibacterialsmentioning

confidence: 99%

Diagnosis and medical treatment of otitis externa in the dog and cat : review article

Jacobson¹

2002

J. S. Afr. Vet. Assoc.

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Otitis externa is no longer viewed as an isolated disease of the ear canal, but is a syndrome that is often a reflection of underlying dermatological disease. Causes are classified as predisposing (increase the risk of otitis) ; primary (directly induce otitis), secondary (contribute to otitis only in an abnormal ear or in conjunction with predisposing factors) and perpetuating (result from inflammation and pathology in ear, prevent resolution of otitis). Common primary causes include foreign bodies, hypersensitivity (particularly atopy and food allergy), keratinisation disorders (most commonly primary idiopathic seborrhoea and hypothyroidism) and earmites, particularly in cats. A systematic diagnostic procedure is required to identify causes and contributing factors. This should include history, clinical examination, otoscopy and cytology in all cases and culture and sensitivity as well as otitis media assessment and biopsy in severe and recurrent cases. Ancillary tests may be required depending on the underlying cause. Treatment consists of identifying and addressing predisposing and primary factors ; cleaning the ear canal ; topical therapy ; systemic therapy where necessary ; client education ; follow-up ; and preventive and maintenance therapy as required

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“…Otitis externa (OE) is common in dogs and is a disease of multifarious etiology. The yeast and bacterium most frequently isolated from OE dogs are Malassezia pachydermatis and Staphylococcus intermedius [2,11,20,23], respectively. Staphylococci including S. intermedius are present in the nasal vestibulum, external auditory meatus, intestinal and urinogenital tracts, anal mucosa, and on the skin surface of dogs.…”

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confidence: 99%

Isolation and Characterization of Staphylococci from External Auditory Meatus of Dogs with or without Otitis Externa with Special Reference to Staphylococcus schleiferi subsp. coagulans Isolates

et al. 2005

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ABSTRACT. Staphylococci were isolated from the external auditory meatus in 14 (48.3%) of 29 dogs affected with otitis externa (OE dogs) and 28 (68.3%) of 41 dogs without OE (non-OE dogs). Twenty-two OE isolates were identified as belonging to 12 species, and 42 non-OE isolates were identified as belonging to 13 species. The predominant species found in both OE and non-OE isolates were S. intermedius, and S. epidermidis. Thirty-eight (59.4%) of 64 isolates were resistant to one or more of the 17 antimicrobial agents tested. Resistance to PCG and ABPC was most frequent. S. schleiferi subsp. coagulans, a recent etiologic agent of canine OE, was isolated from OE and non-OE dogs. All of the 5 S. schleiferi subsp. coagulans isolates showed typical characteristics. No clear difference in the extracellular enzyme or toxin profiles, nor in the PFGE patterns, was demonstrated between the OE and non-OE isolates of S. schleiferi subsp. coagulans. A new PCR primer set specific for 16S rDNA was designed to identify strains of S. schleiferi subsp. coagulans. The amplified fragment was detected in all of the 5 isolates as well as the type strain GA 211 (=JCM 7470) and a reference strain GA 11, but was not detected in any strains of the related species, S. aureus, S. intermedius and S. hyicus. The PCR may allow a simple, rapid and precise identification of S. schleiferi subsp. coagulans, in addition to the standard tube test for free coagulase. Otitis externa (OE) is common in dogs and is a disease of multifarious etiology. The yeast and bacterium most frequently isolated from OE dogs are Malassezia pachydermatis and Staphylococcus intermedius [2,11,20,23], respectively. Staphylococci including S. intermedius are present in the nasal vestibulum, external auditory meatus, intestinal and urinogenital tracts, anal mucosa, and on the skin surface of dogs. Knowledge of the composition of the normal staphylococcal flora in the external auditory meatus is an important factor in determining the etiology and epidemiology of staphylococcal OE in dogs. However, the ecology of the staphylococci inhabiting the external auditory meatus of healthy dogs has not yet been studied sufficiently.Determination of the susceptibility of Staphylococcus species to antimicrobial agents is of great importance in the selective use of chemotherapeutics, the evaluation of new antimicrobial agents, and in the development of drug resistance through continuous use of antimicrobial agents against field isolates. However, there is little information concerning the antimicrobial susceptibility patterns of Staphylococcus species isolated from OE and non-OE dogs in Japan [18].Recently, coagulase-positive S. schleiferi subsp. coagulans has also been isolated from the external auditory meatus of OE dogs [8]. Subsequently, the organism was cultured from dogs with pyoderma [1,5,7] and from a finger-wound infection in a human patient [21]. Recognition of the clinical importance of S. schleiferi subsp. coagulans in veterinary and human medicine is growing. To our knowledge...

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New combination for the therapy of canine otitis externa I Microbiology of otitis externa

Cited by 71 publications

References 12 publications

Prevalence of Malassezia pachydermatis in dogs with suspected Malassezia dermatitis or otitis in Slovakia

Prevalence of Malassezia pachydermatis in dogs with suspected Malassezia dermatitis or otitis in Slovakia

Diagnosis and medical treatment of otitis externa in the dog and cat : review article

Isolation and Characterization of Staphylococci from External Auditory Meatus of Dogs with or without Otitis Externa with Special Reference to Staphylococcus schleiferi subsp. coagulans Isolates

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