DOCSLIB.ORG

Table Des Illustrations ______

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Table Des Illustrations ______ VETAGRO SUP CAMPUS VETERINAIRE DE LYON Année 2013 - Thèse n° 01 ACTUALITE SUR LA DEMODECIE FELINE ET PRESENTATION DE CAS CLINIQUES THESE Présentée à l’UNIVERSITE CLAUDE-BERNARD - LYON I (Médecine - Pharmacie) et soutenue publiquement le 19 Février 2013 pour obtenir le grade de Docteur Vétérinaire par TROUVE Coline Né(e) le 13 Septembre 1985 à Grenoble (38) 2 VETAGRO SUP CAMPUS VETERINAIRE DE LYON Année 2013 - Thèse n° 01 ACTUALITE SUR LA DEMODECIE FELINE ET PRESENTATION DE CAS CLINIQUES THESE Présentée à l’UNIVERSITE CLAUDE-BERNARD - LYON I (Médecine - Pharmacie) et soutenue publiquement le 19 Février 2013 pour obtenir le grade de Docteur Vétérinaire par TROUVE Coline Né(e) le 13 Septembre 1985 à Grenoble (38) 3 4 5 6 Remerciements _________________________________________ A Monsieur le Professeur Michel FAURE de la Faculté de Médecine de Lyon pour m’avoir fait l’honneur d’accepter la présidence de ce jury de thèse. Avec l’expression de mon plus profond respect et de mes plus sincères remerciements. A Monsieur le Professeur Didier PIN de VetAgroSup campus vétérinaire de Lyon pour m’avoir proposé ce sujet et m’avoir encadré tout au long de ce travail, pour son implication, sa gentillesse, sa patience et sa disponibilité. Avec toute ma gratitude et mon respect les plus sincères. A Monsieur le Professeur Gilles BOURDOISEAU de VetAgroSup campus vétérinaire de Lyon Pour avoir accepté de juger mon travail et de faire partie de ce jury de thèse. Sincères remerciements. A Monsieur le Docteur Thierry BORD Pour avoir donné son autorisation à l’utilisation d’un de ses cas cliniques. Sincères remerciements. 7 8 A ma famille 9 10 Table des matières _________________________________________ Introduction…………………………………………………………………...23 Partie 1 : Etiologie et pathogénie de la démodécie féline……………….......25 I. Définition et généralités .................................................................................................. 27 A. Définition .................................................................................................................... 27 B. Synonymie ................................................................................................................... 27 II. Présentation des parasites ............................................................................................. 29 A. Description des parasites .............................................................................................. 29 1. Généralités ................................................................................................................ 29 a) De nombreuses espèces parasitées ......................................................................... 29 b) Historique ............................................................................................................. 30 (1) Demodex cati ................................................................................................... 30 (2) Demodex gatoi ................................................................................................. 31 (3) Demodex species ............................................................................................. 31 2. Critères taxonomiques ............................................................................................... 31 3. Critères morphologiques ........................................................................................... 32 a) Demodex cati ........................................................................................................ 33 (1) L’adulte ........................................................................................................... 33 (a) Le mâle ........................................................................................................ 33 (b) La femelle .................................................................................................... 34 (2) L’œuf .............................................................................................................. 37 (3) La larve ........................................................................................................... 37 (4) Les nymphes .................................................................................................... 38 (a) La protonymphe ........................................................................................... 38 (b) Le deutonymphe .......................................................................................... 38 b) Demodex gatoi ...................................................................................................... 39 (1) L’adulte ........................................................................................................... 39 (2) L’œuf .............................................................................................................. 42 c) Demodex species ............................................................................................... 42 (1) Première description ........................................................................................ 42 (2) Une nouvelle espèce ?...................................................................................... 42 (3) Dernières actualités .......................................................................................... 43 d) Rapide comparaison des trois Demodex ................................................................ 45 4. Critères biologiques .................................................................................................. 46 a) Habitat .................................................................................................................. 46 (1) Quelques rappels anatomiques ......................................................................... 46 (a) L’épiderme .................................................................................................. 46 (b) Les follicules pileux ..................................................................................... 46 (2) Habitat de Demodex cati .................................................................................. 47 (3) Habitat de Demodex gatoi ................................................................................ 47 (4) A propos de Demodex species .......................................................................... 48 11 (5) Comparaison de l’habitat des Demodex du chat ............................................... 49 b) Nutrition ............................................................................................................... 49 c) Cycle parasitaire ................................................................................................... 50 d) Résistance dans le milieu extérieur........................................................................ 52 5. Transmission de la démodécie féline ......................................................................... 53 a) Transmission interspécifique ................................................................................. 53 b) Zoonose ................................................................................................................ 54 c) Contagion intraspécifique...................................................................................... 54 (1) Demodex cati ................................................................................................... 54 (2) Demodex gatoi ................................................................................................. 54 B. Epidémiologie .............................................................................................................. 56 1. Fréquence - Espèces affectées ................................................................................... 56 2. Répartition géographique .......................................................................................... 56 3. Facteurs intrinsèques ................................................................................................. 57 a) Race ...................................................................................................................... 57 b) Sexe ...................................................................................................................... 58 c) Age ....................................................................................................................... 58 d) Hérédité ................................................................................................................ 59 e) Etat immunitaire ................................................................................................... 59 4. Facteurs extrinsèques ................................................................................................ 60 a) L’alimentation....................................................................................................... 60 b) Traitements ultérieurs ........................................................................................... 60 c) Maladies concomitantes ........................................................................................ 60 5. Récapitulatif des données biologiques et épidémiologiques ....................................... 62 III. Pathogénie de la démodécie ......................................................................................... 63 A. Différentes actions pathogènes des Demodex ............................................................... 63 B. Pathogénie de la démodécie canine
Load more

Recommended publications
  • ESCCAP Guidelines Final
    ESCCAP Malvern Hills Science Park, Geraldine Road, Malvern, Worcestershire, WR14 3SZ First Published by ESCCAP 2012 © ESCCAP 2012 All rights reserved This publication is made available subject to the condition that any redistribution or reproduction of part or all of the contents in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise is with the prior written permission of ESCCAP. This publication may only be distributed in the covers in which it is first published unless with the prior written permission of ESCCAP. A catalogue record for this publication is available from the British Library. ISBN: 978-1-907259-40-1 ESCCAP Guideline 3 Control of Ectoparasites in Dogs and Cats Published: December 2015 TABLE OF CONTENTS INTRODUCTION...............................................................................................................................................4 SCOPE..............................................................................................................................................................5 PRESENT SITUATION AND EMERGING THREATS ......................................................................................5 BIOLOGY, DIAGNOSIS AND CONTROL OF ECTOPARASITES ...................................................................6 1. Fleas.............................................................................................................................................................6 2. Ticks ...........................................................................................................................................................10
    [Show full text]
  • Escola Superior Batista Do Amazonas Curso De Medicina Veterinária Danielle Corrêa Américo De Assis
    ESCOLA SUPERIOR BATISTA DO AMAZONAS CURSO DE MEDICINA VETERINÁRIA DANIELLE CORRÊA AMÉRICO DE ASSIS DIAGNÓSTICO E TRATAMENTO DE DEMODICOSE FELINA CAUSADA POR DEMODEX GATOI: RELATO DE CASO Manaus 2016 DANIELLE CORRÊA AMÉRICO DE ASSIS DIAGNÓSTICO E TRATAMENTO DE DEMODICOSE FELINA CAUSADA POR DEMODEX GATOI: RELATO DE CASO Trabalho de conclusão de curso como requisito parcial para obtenção do grau de Bacharel. Escola Superior Batista do Amazonas. Curso de Graduação em Medicina Veterinária. Orientadora Profa Dra Marina Pandolphi Brolio. Manaus 2016 Dedicatória A minha avó, pai, e namorado, todos meus familiares, meus animais e a todos que ajudaram para realização desse trabalho. AGRADECIMENTOS Agradeço primeiramente a Deus, por tudo que tem feito em minha vida, por estar me proporcionando dar orgulho ao meu pai e a minha família, Deus como lhe agradeço por tudo isso, por me dar sabedoria e discernimento para continuar esses longos 5 anos de graduação, que não foi fácil. Obrigado por permitir a realização de um grande sonho, me graduar e me tornar Medica Veterinária. Ao meu pai Erivaldo Américo que sem ele nada seria possível, agradeço por tudo que tem feito por mim, por cada investimento, sei o quanto acreditou e acredita em mim, o quando lhe dou orgulho por estar me graduando e ter uma profissão honesta. A minha Avó-Mãe que tem me ajudado tanto, a pessoa que teve suma importância na construção do meu caráter, por ter me ajudado, por ter me criado. E agradeço a Deus por ter você em minha vida. A minha Mãe que mesmo longe, acreditou no meu potencial, e sempre tem orgulho de dizer a todos que estou me graduando em Medicina Veterinária.
    [Show full text]
  • Deconstructing Canine Demodicosis”
    TESIS DOCTORAL TITULO: “Deconstructing canine demodicosis” AUTOR: Ivan Ravera DIRECTORES: Lluís Ferrer, Mar Bardagí, Laia Solano Gallego. PROGRAMA DE DOCTORADO: Medicina i Sanitat Animals DEPARTAMENTO: Medicina i Cirurgia Animals UNIVERSIDAD: Universitat Autònoma de Barcelona 2015 Dr. Lluis Ferrer i Caubet, Dra. Mar Bardagí i Ametlla y Dra. Laia María Solano Gallego, docentes del Departamento de Medicina y Cirugía Animales de la Universidad Autónoma de Barcelona, HACEN CONSTAR: Que la memoria titulada “Deconstructing canine demodicosis” presentada por el licenciado Ivan Ravera para optar al título de Doctor por la Universidad Autónoma de Barcelona, se ha realizado bajo nuestra dirección, y considerada terminada, autorizo su presentación para que pueda ser juzgada por el tribunal correspondiente. Y por tanto, para que conste firmo el presente escrito. Bellaterra, el 23 de Septiembre de 2015. Dr. Lluis Ferrer, Dra. Mar Bardagi, Ivan Ravera Dra. Laia Solano Gallego Directores de la tesis doctoral Doctorando AGRADECIMIENTOS A los alquimistas de guantes azules A los otros luchadores - Ester Blasco - Diana Ferreira - Lola Pérez - Isabel Casanova - Aida Neira - Gina Doria - Blanca Pérez - Marc Isidoro - Mercedes Márquez - Llorenç Grau - Anna Domènech - los internos del HCV-UAB - Elena García - los residentes del HCV-UAB - Neus Ferrer - Manuela Costa A los veterinarios - Sergio Villanueva - del HCV-UAB - Marta Carbonell - dermatólogos españoles - Mónica Roldán - Centre d’Atenció d’Animals de Companyia del Maresme A los sensacionales genetistas
    [Show full text]
  • Demodikoosi Koiralla, Kissalla Ja Muilla Pieneläimillä - Kirjallisuuskatsaus
    Demodikoosi koiralla, kissalla ja muilla pieneläimillä - kirjallisuuskatsaus Eläinlääketieteen lisensiaatin tutkielma Pieneläinsisätautien oppiaine Kliinisen hevos- ja pieneläinlääketieteen osasto Eläinlääketieteellinen tiedekunta Helsingin yliopisto Kaisa Valkiala 2013 Tiedekunta - Fakultet – Faculty Osasto - Avdelning – Department Eläinlääketieteellinen tiedekunta Kliinisen hevos- ja pieneläinlääketieteen osasto Tekijä - Författare – Author Kaisa Valkiala Työn nimi - Arbetets titel – Title Demodikoosi koiralla, kissalla ja muilla pieneläimillä - kirjallisuuskatsaus Oppiaine - Läroämne – Subject Pieneläinten sisätaudit Työn laji- Arbetets art – Level Aika- Datum – Month and year Sivumäärä - Sidoantal – Number of pages Lisensiaatin tutkielma Toukokuu 2013 68 Tiivistelmä - Referat – Abstract Kirjallisuuskatsauksen tarkoituksena oli selvittää, mitä nykyään tiedetään koiran, kissan ja muiden pieneläinten demodikoosista. Erityisesti koiran demodikoosiin liittyy vielä epäselvyyksiä. Työn on tarkoitus myös toimia tietolähteenä eläinlääkäreille. Demodikoosi on ihosairaus, jonka aiheuttaa Demodex spp. -punkin liiallinen lisääntyminen. Punkit kuuluvat isäntäeläimensä ihon normaalieliöstöön ja elävät yleensä karvafollikkeleissa. Sikarimaisen muotonsa vuoksi niitä kutsutaan sikaripunkeiksi. Demodikoosi on koiran yleinen ihosairaus. Yleisimmin sen aiheuttaa D. canis, mutta myös D. injai ja D. cornei on tunnistettu. Sairautta esiintyy enemmän nuorilla koirilla. Demodikoosi luokitellaan joko paikalliseksi tai yleistyneeksi. Paikallisen demodikoosin
    [Show full text]
  • Demodex Gatoi-Associated Contagious Pruritic Dermatosis in Cats-A Report from Six Households in Finland
    Acta Veterinaria Scandinavica BioMed Central Case study Open Access Demodex gatoi -associated contagious pruritic dermatosis in cats - a report from six households in Finland Seppo AM Saari*1, Kirsi H Juuti2, Joanna H Palojärvi3, Kirsi M Väisänen4, Riitta-Liisa Rajaniemi5 and Leena E Saijonmaa-Koulumies6 Address: 1Department of Basic Veterinary Sciences (FINPAR), Faculty of Veterinary Medicine, University of Helsinki, Finland, 2CatVet Cat Clinic, Helsinki, Finland, 3Espoo Animal Hospital, Espoo, Finland, 4Private Veterinary Clinic, Outokumpu, Finland, 5Lemmikki Veterinary Clinic, Oulu, Finland and 6Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Finland Email: Seppo AM Saari* - [email protected]; [email protected]; Joanna H Palojärvi - [email protected]; Kirsi M Väisänen - [email protected]; Riitta-Liisa Rajaniemi - [email protected]; Leena E Saijonmaa- Koulumies - [email protected] * Corresponding author Published: 20 October 2009 Received: 26 May 2009 Accepted: 20 October 2009 Acta Veterinaria Scandinavica 2009, 51:40 doi:10.1186/1751-0147-51-40 This article is available from: http://www.actavetscand.com/content/51/1/40 © 2009 Saari et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Background: Demodex gatoi is unique among demodectic mites. It possesses a distinct stubby appearance, and, instead of residing in the hair follicles, it dwells in the keratin layer of the epidermis, causing a pruritic and contagious skin disease in cats.
    [Show full text]
  • <I> Demodex Musculi</I>
    Comparative Medicine Vol 67, No 4 Copyright 2017 August 2017 by the American Association for Laboratory Animal Science Pages 315–329 Original Research Characterization of Demodex musculi Infestation, Associated Comorbidities, and Topographic Distribution in a Mouse Strain with Defective Adaptive Immunity Melissa A Nashat,1 Kerith R Luchins,2 Michelle L Lepherd,3,† Elyn R Riedel,4 Joanna N Izdebska,5 and Neil S Lipman1,3,* A colony of B6.Cg-Rag1tm1Mom Tyrp1B-w Tg(Tcra,Tcrb)9Rest (TRP1/TCR) mice presented with ocular lesions and ulcerative dermatitis. Histopathology, skin scrapes, and fur plucks confirmed the presence ofDemodex spp. in all clinically affected and subclinical TRP1/ TCR mice examined (n = 48). Pasteurella pneumotropica and Corynebacterium bovis, both opportunistic pathogens, were cultured from the ocular lesions and skin, respectively, and bacteria were observed microscopically in abscesses at various anatomic loca- tions (including retroorbital sites, tympanic bullae, lymph nodes, and reproductive organs) as well as the affected epidermis. The mites were identified asDemodex musculi using the skin fragment digestion technique. Topographic analysis of the skin revealed mites in almost all areas of densely haired skin, indicating a generalized demodecosis. The percentage of infested follicles in 8- to 10-wk-old mice ranged from 0% to 21%, and the number of mites per millimeter of skin ranged from 0 to 3.7. The head, interscapular region, and middorsum had the highest proportions of infested follicles, ranging from 2.3% to 21.1% (median, 4.9%), 2.0% to 16.6% (8.1%), and 0% to 17% (7.6%), respectively. The pinnae and tail skin had few or no mites, with the proportion of follicles infested ranging from 0% to 3.3% (0%) and 0% to 1.4% (0%), respectively.
    [Show full text]
  • FELINE ARTHROPODS ARTICLE Lindsay Starkey, DVM Jay Stewart, DVM Oklahoma State University Aumsville Animal Clinic, Aumsville, Oregon
    PARASITE PROTOCOLS FOR YOUR PRACTICE Peer Reviewed Recommendations from the Companion Animal Parasite Council FELINE FRIENDLY FELINE ARTHROPODS ARTICLE Lindsay Starkey, DVM Jay Stewart, DVM Oklahoma State University Aumsville Animal Clinic, Aumsville, Oregon The mission of the Companion Animal Parasite Council (CAPC) is to foster animal and human health, while preserving the human–animal bond, through recommendations for the diagnosis, treatment, prevention, and control of parasitic infections. For more information, including detailed parasite control recommendations, please visit capcvet.org. Ectoparasites—in addition to being a nuisance— 4. Adults quickly fi nd a host after emerging, and are associated with allergies, skin infections, and begin feeding within minutes.1 self-induced traumatic injury in pets. They are also • Egg production begins around 24 hours after vectors of infectious and zoonotic disease-causing initiation of feeding.1 agents, some of which can prove fatal.1–6 Fleas, • Adults account for only about 5% of the total ticks, mites, and lice are common ectoparasites flea population in an infestation.12 seen on cats in the United States. Completion of the life cycle typically takes 3 to 8 weeks, and depends on relative humidity and FLEAS temperature; a moist, warm environment is ideal.4 The most common ectoparasite that infests cats (and dogs) in North America is the cat fl ea, Signi cance of Infestation Ctenocephalides felis ( ). Other fl eas also Figure 1 Fleas can cause irritation and pruritus, and certain infest cats, including Echidnophaga gallinacea, Pulex cats may develop fl ea allergy dermatitis. Heavy irritans, and P simulans.1,7,8 infestations can lead to anemia and, if not managed appropriately, can be fatal.1 Life Cycle Fleas are also important vectors of disease- Fleas have 4 life stages: causing agents.
    [Show full text]
  • Clinical Aspects of Demodicosis in Veterinary and Human Medicine
    Med. Weter. 2017, 73 (5), 265-271 DOI: 10.21521/mw.5697 265 Artykuł przeglądowy Review Clinical aspects of demodicosis in veterinary and human medicine DAWID JAŃCZAK, ANNA RUSZCZAK*, ILONA KASZAK*, ELŻBIETA GOŁĄB, KAROLINA BARSZCZ** Division of Parasitology, National Institute of Public Health, National Institute of Hygiene, Chocimska 24, 00-791 Warsaw, Poland *Department of Small Animal Diseases with Clinic, **Department of Morphological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, Nowoursynowska 159c, 02-776 Warsaw, Poland Received 01.12.2016 Accepted 23.01.2017 Jańczak D., Ruszczak A., Kaszak I., Gołąb E., Barszcz K. Clinical aspects of demodicosis in veterinary and human medicine Summary Mites from the genus Demodex are ectoparasites of many mammals, including humans. There are over 100 Demodex species, which demonstrate strong specificity in host selection (Tab. 1). The mites are common in humans. It has been estimated that up to 60% of adults may be infected, but in most cases no symptoms of the disease are present. Demodex multiplication inside sebaceous glands and hair follicles can lead to skin disease in both humans and animals. In humans, the main problem is ocular demodicosis, which can cause chronic conjunctivitis and blepharitis. In this paper, we present the biology and epidemiology of Demodex species in humans as well as in domestic and farm animals. Characteristic lesions, diagnostics and treatment of demodicosis are also described. Keywords: Demodex spp., human, dogs, cats, farm animals, wild animals There are over 100 mite species from the genus In veterinary medicine, canine demodicosis and Demodex worldwide inhabiting the skin of most mam- some cases of feline demodicosis are the biggest mals (29).
    [Show full text]
  • Feline Clinical Parasitology Feline Clinical Parasitology
    FELINE CLINICAL PARASITOLOGY FELINE CLINICAL PARASITOLOGY Dwight D. Bowman Charles M. Hendrix David S. Lindsay Stephen C. Barr Dwight D. Bowman, MS, PhD, is an Associate Professor of Parasitology in the Department of Microbiology and Immunology at the College of Veterinary Medicine, Cornell University, Ithaca, New York. Charles M. Hendrix, DVM, is a Professor of Parasitology in the Department of Pathobiology at the College of Veterinary Medicine, Auburn University, Auburn, Alabama. David S. Lindsay, PhD, is an Associate Professor in the Department of Biomedical Sciences and Pathobiology at the Center for Molecular Medicine and Infectious Diseases, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, Blacksburg, Virginia. Stephen C. Barr, BVSc MVS, PhD, is a Diplomate of the American College of Veterinary Internal Medicine and an Associate Professor of Medicine in the Department of Clinical Sciences at the College of Veterinary Medicine, Cornell University, Ithaca, New York. © 2002 Iowa State University Press A Blackwell Science Company All rights reserved Iowa State University Press 2121 South State Avenue, Ames, Iowa 50014 Orders: 1-800-862-6657 Office: 1-515-292-0140 Fax: 1-515-292-3348 Web site: www.isupress.com Authorization to photocopy items for internal or personal use, or the internal or personal use of specific clients, is granted by Iowa State University Press, provided that the base fee of $.10 per copy is paid directly to the Copy- right Clearance Center, 222 Rosewood Drive, Danvers, MA 01923. For those organizations that have been granted a photocopy license by CCC, a separate system of payments has been arranged. The fee code for users of the Transactional Reporting Service is 0-8138-0333-0/2002 $.10.
    [Show full text]
  • Endoparasites of European Wildcats (Felis Silvestris) in Greece
    pathogens Article Endoparasites of European Wildcats (Felis silvestris) in Greece Anastasia Diakou 1,* , Despina Migli 2, Dimitris Dimzas 1, Simone Morelli 3 , Angela Di Cesare 3, Dionisios Youlatos 2 , Petros Lymberakis 4 and Donato Traversa 3 1 School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; [email protected] 2 School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; [email protected] (D.M.); [email protected] (D.Y.) 3 Faculty of Veterinary Medicine, University Teaching Veterinary Hospital, University of Teramo, 64100 Teramo, Italy; [email protected] (S.M.); [email protected] (A.D.C.); [email protected] (D.T.) 4 Natural History Museum of Crete, School of Sciences and Engineering, University of Crete, Knossou Avenue, 71409 Irakleio, Greece; [email protected] * Correspondence: [email protected] Abstract: The European wildcat (Felis silvestris) is the only wild felid living in Greece. Wildcat popu- lations are declining due to anthropogenic and phenological unfavourable conditions, and parasites may have an additional negative impact. In the present study, the occurrence of endoparasites in wildcats in Greece and the potential threats posed to wildcats, domestic animals, and humans in the study areas has been investigated. In a six-year period, 23 road-killed wildcats and 62 wildcat faecal samples were collected from different areas of the country. Necropsy for the detection of endopara- sites and standard parasitological examinations of faecal samples were performed. Parasites were morphologically identified and, in selected cases, molecularly analysed. All necropsied wildcats (100%) were infected by three to 10 different parasite taxa, with the most prevalent being Taenia Citation: Diakou, A.; Migli, D.; taeniaeformis (73.9%), Toxocara cati (60.9%), Angiostrongylus chabaudi (56.5%), Ancylostoma tubaeforme Dimzas, D.; Morelli, S.; Di Cesare, A.; (39.1%), Cylicospirura spp.
    [Show full text]
  • Fecal Flotation in the Detection of Canine Demodex Mites
    Vet Dermatol 2018 DOI: 10.1111/vde.12540 Letter to the Editor Fecal flotation in the detection of canine skin samples and the presence of Demodex mites in the Demodex mites fecal samples was estimated using Pearson’s chi-square test with the Yates correction, using StatPlus:mac Pro Dear Editors, (AnalystSoft; Walnut, CA, USA). The diagnosis of canine demodicosis is made according Deep skin scrapings and fecal examination were to clinical signs, deep skin scrapings, examination of negative for the presence of Demodex mites for 47 plucked hairs and sometimes acetate-tape impressions; dogs and positive in nine dogs. Demodex mites were molecular diagnostic tools also are available.1,2 Unlike found in both skin scrapings and fecal samples from feline Demodex infestations, we are unaware of pub- five dogs, with generalized and localized skin lesions. lished studies documenting fecal examination as a In skin scrapings from five dogs only Demodex canis diagnostic tool for canine demodicosis.3 The aim of our was found and a further two dogs had both D. canis study was to compare the results of skin scrapings and the D. canis variant cornei; one dog was positive and fecal examination for the diagnosis of canine for D. canis variant cornei (mean number of mites demodicosis. 22.8).2 In the ninth dog, mites were not found in skin Fifty six dogs with skin lesions were presented to vet- scrapings and one mite was found in the fecal sam- erinary clinics in Vladivostok. Deep skin scrapings (three ple. Morphological identification of mites found in scrapings per individual on a skin area of approximately fecal samples (mean number of mites: 1) was not 3 9 8 cm) were obtained from each animal.
    [Show full text]
  • Fetchsd-2017-0140-02
    An Easier Way to Diagnose and Manage Otitis Externa in the Real World (Parts 1 and 2) Paul Bloom, DVM, DACVD, DABVP Allergy, Skin and Ear Clinic for Pets Livonia, MI It is important to understand that ear disease is only a symptom (no more specific than “pruritus”). As Dr Flemming Kristensen stated “A patient showing ear problems is a dermatology case until proven otherwise”. It is appropriate therefore to approach the diagnosis of ear disease just as you would for any other skin disease. Obtaining a detailed history is an important first step in trying to identify the underlying cause of the ear disease. Specific questions that should be asked include: 1. When did the symptoms first occur? This is an important question, because many owners will only tell you when this current episode of symptoms occurred, not the very first time it occurred; 2. Other than the problem the owner presents the patient for, you must ask all owners if the dog has EVER had problems with excessive licking, scratching, chewing, biting or rubbing. Has the dog ever had ear problems before this episode? If so, when, with what medication and what was the response to treatment; 3. Where does the dog live- indoor, outdoors, both? Describe the environment, especially the outdoor environment; 4. Is the dog on heartworm and flea preventative? If so, what product, how often is it administered and is it year round or seasonal? 5. Are there any other pets in the household? If so, what kind and are they symptomatic. If they are cats, do they go outside? ; 6.
    [Show full text]