DERMATITIS ALERGICA POR PULGAS EN PERROS PDF

Cuanto antes se deshaga de ellas, mejor, ya que si se deja que se propaguen, pueden infectar gravemente a la mascota y, en consecuencia, toda la casa. Naturalmente, al aparecer signos de alergia, somnolencia o ansiedad excesiva, usted tiene que quitarle el collar. No va a ser capaz de resolver este problema sin su ayuda. Para evaluar la magnitud del problema, peine el gato sobre una hoja de papel de modo que usted pueda ver la cantidad que haya eliminado. A veces las pulgas atacan a tal escala que peinar el pelo no es suficiente.

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Canine flea-allergy dermatitis FAD , a hypersensitivity response to antigenic material in the saliva of feeding fleas, occurs worldwide and remains a common presentation in companion animal veterinary practice despite widespread availability of effective systemic and topical flea-control products. To evaluate the clinical response in dogs with FAD treated topically with indoxacarb, a novel oxadiazine insecticide. Twenty-five client-owned dogs in Queensland, Australia diagnosed with pre-existing FAD on the basis of clinical signs, flea-antigen intradermal and serological tests.

Twenty-four dogs completed the study. Complete resolution of clinical signs of FAD was observed in 21 cases Mean flea counts reduced by Vierundzwanzig Hunde beendeten die Studie.

Flea-allergy dermatitis FAD is a highly prevalent skin disease of dogs, 1 — 3 in which affected individuals experience a hypersensitivity response induced by antigens injected intradermally with the saliva of feeding fleas. Indoxacarb is an oxadiazine insecticide that has been shown to have significant insecticidal activity against the adult cat flea Ctenocephalides felis , 4 recognized as the most common flea infesting dogs in the USA, Europe and Australia.

The initial gender breakdown was as follows: five intact males, 11 neutered males, four intact females and five neutered females the dog withdrawn from the study was an intact female. The study was conducted during the summer months in Queensland, Australia between January and April , when the risk of flea exposure was high.

Dogs were kept at home by their owners and fed and exercised according to their usual routine. If there were no skin reactions then a serum sample was submitted to a commercial laboratory for flea-antibody IgE serology testing Allercept assay; Heska, Gribbles Veterinary Pathology Laboratory, Clayton, Victoria, Australia. There was a positive immediate- or delayed-type wheal response in 22 of the 25 dogs tested; blood samples from the three negative dogs tested positive for flea antibodies.

Additional diagnostic tests for all dogs included skin scrapings, skin cytology and fungal culture; in all cases, these did not reveal any findings that provided an alternative explanation for the observed clinical signs. Following completion of diagnostic testing, each dog was assessed during weeks 0, 4, 8 and 12 using three parameters as follows.

Treatment was applied at one or more evenly distributed spots along the dorsal midline between the shoulder blades and base of the tail, with larger and heavier dogs receiving more treatment locations. Owners were advised not apply any insecticidal treatment to their households or premises during the study period. Each owner gave informed signed consent, and the study was conducted according to Australian Animal Welfare guidelines, with pre-approval from the Queensland Department of Primary Industries and Fisheries: Community Access Animal Ethics Committee prior to commencement.

All reported means are arithmetic, and data were transformed as described below to apply appropriate statistical techniques. Observed flea counts were used for the analysis, and the mean—variance relationship was used to link mean counts to the linear model on a logarithmic scale. Pruritus Visual Analog Scale PVAS results are not normally distributed because a disproportionate number of responses can be close to 0, particularly as treated dogs reach their final clinical assessment.

Therefore, the nonparametric Wilcoxon signed-rank test for paired samples was used to compare differences in PVAS scores between the following three time points: day 0 and week 4; day 0 and week 8; and day 0 and week A significant result was declared when the sequence of marginal frequencies for the post-treatment categories differed from the sequence for the pretreatment categories to a greater extent than would be expected by chance.

Each Bhapkar's chi-square test was followed by McNemar's chi-square test of the overall direction of change among the categories. All enrolled dogs showed significant improvement in observed clinical signs over the study period. Of the 24 dogs that completed the study successfully, 21 The other three dogs had almost complete resolution or very marked improvement.

Some dogs recovered rapidly from clinical signs; 11 dogs No indoxacarb treatment-associated adverse clinical events were observed by owners or veterinarians. The mean pretreatment PVAS was The lowest PVAS reported at the pretreatment examination was All measures, including CADESI scores; owner-assessed pruritus and flea counts, decreased significantly over the study period.

The CADESI scoring system is validated only for canine atopic dermatitis and not for FAD; furthermore, the CADESI system cannot be used to classify clinical signs as being definitively caused by FAD; therefore, the classification of the scores into four severity categories was empirical and not based on any formal assessment of the validity of this scoring system for dogs with signs of FAD.

For the purposes of this study, it was considered that CADESI provided a useful measurement of the severity of clinical signs. This study provided additional supporting evidence that clinical signs may still represent the optimal method for diagnosing FAD in dogs.

All dogs enrolled in the study were considered to have clinical signs consistent with FAD; however, three of these 25 dogs were negative on skin testing with flea allergen and six of the dogs were flea free on pretreatment flea counts. Clinicians suspecting FAD based on clinical signs will probably continue to recommend effective flea treatment as a reliable method for subsequent evaluation of the aetiology of these signs.

The results of this study show that topical indoxacarb treatment controlled flea infestations, and it can be recommended for the management of flea-allergy dermatitis in dogs. Given the likelihood of reinfestation of dogs, veterinarians should recommend that owners maintain an ongoing programme of effective flea control to prevent re-emerging flea infestations triggering a recurrence of clinical signs in flea-allergic dogs. The authors would like to thank Paul Nicholls for statistical analyses and Rob Armstrong and Kathy Heaney for assistance with the manuscript.

National Center for Biotechnology Information , U. Veterinary Dermatology. Vet Dermatol. Published online May 6. Author information Article notes Copyright and License information Disclaimer. E-mail: moc. Conflict of Interest: The authors conducted this study with financial support from Merck Animal Health. Accepted Jan 1. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

This article has been cited by other articles in PMC. Abstract Background Canine flea-allergy dermatitis FAD , a hypersensitivity response to antigenic material in the saliva of feeding fleas, occurs worldwide and remains a common presentation in companion animal veterinary practice despite widespread availability of effective systemic and topical flea-control products.

Animals Twenty-five client-owned dogs in Queensland, Australia diagnosed with pre-existing FAD on the basis of clinical signs, flea-antigen intradermal and serological tests. Results Twenty-four dogs completed the study. Resultados 24 perros completaron el estudio. Ergebnisse Vierundzwanzig Hunde beendeten die Studie. Introduction Flea-allergy dermatitis FAD is a highly prevalent skin disease of dogs, 1 — 3 in which affected individuals experience a hypersensitivity response induced by antigens injected intradermally with the saliva of feeding fleas.

Statistical analysis All reported means are arithmetic, and data were transformed as described below to apply appropriate statistical techniques.

Pruritus Visual Analog Scale analysis Pruritus Visual Analog Scale PVAS results are not normally distributed because a disproportionate number of responses can be close to 0, particularly as treated dogs reach their final clinical assessment.

Results All enrolled dogs showed significant improvement in observed clinical signs over the study period. Open in a separate window. Acknowledgments The authors would like to thank Paul Nicholls for statistical analyses and Rob Armstrong and Kathy Heaney for assistance with the manuscript.

References Griffin CE. Chapter Flea allergy dermatitis. Saunders Manual of Small Animal Practice. Therapy, control and prevention of flea allergy dermatitis in dogs and cats. Characterization of pruritus in canine atopic dermatitis, flea bite hypersensitivity and flea infestation and its role in diagnosis. Efficacy of indoxacarb applied to cats against the adult cat flea, Ctenocephalides felis , flea eggs and adult flea emergence. Parasit Vectors. The biology, ecology, and management of the cat flea.

Annu Rev Entomol. Advances in the control of C. Trends Parasitol. The cat flea Ctenocephalides f. Vet Parasitol. Indoxacarb, an oxadiazine insecticide, blocks insect neuronal sodium channels. Br J Pharmacol. Molecular basis of differential sensitivity of insect sodium channels to DCJW, a bioactive metabolite of the oxadiazine insecticide indoxacarb.

Indoxacarb kills developing stages of fleas in the environment of treated cats. Accessed Jan 4, Good Clinical Practices Guideline.

Available at: www. Muller and Kirk's Small Animal Dermatology. Philadelphia, PA: W. Saunders Co; Development of an owner-assessed scale to measure the severity of pruritus in dogs. Australian Government. Generalised Linear Models.

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Cómo deshacerse de las pulgas en los gatos rápidamente: mejor medicina de pulgas

Canine flea-allergy dermatitis FAD , a hypersensitivity response to antigenic material in the saliva of feeding fleas, occurs worldwide and remains a common presentation in companion animal veterinary practice despite widespread availability of effective systemic and topical flea-control products. To evaluate the clinical response in dogs with FAD treated topically with indoxacarb, a novel oxadiazine insecticide. Twenty-five client-owned dogs in Queensland, Australia diagnosed with pre-existing FAD on the basis of clinical signs, flea-antigen intradermal and serological tests. Twenty-four dogs completed the study. Complete resolution of clinical signs of FAD was observed in 21 cases Mean flea counts reduced by Vierundzwanzig Hunde beendeten die Studie.

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