Mohammad Asadi Iraee¹*, Mohsen Peysokhan¹, Mohammad Mehdi Yazdani Rostam², Mohammad Javad Mashayekhnia³, Mohammad Reza Roudaki Sarvendani4, Shohreh Alian Samakkhah⁵, Alireza Farkhakfar², Helia Aziziha² and Ali Zareh¹

¹Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
²Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
³Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Islamic Azad University, Babol Branch, Tabriz, Iran
⁴Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Tehran University, Tehran, Iran
⁵Department of Food Hygiene, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies (AUSMT), Ahvaz, Iran

*Corresponding Author:Mohammad Asadi Iraee, Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.

Received: October 17, 2022; Published: October 19, 2022

Abstract

Otitis externa is a multifactorial disease that has 5 to 20 percent prevalence in small animal medicine which can be diagnosed according to the history and general dermatological and otoscopic examinations. This study aimed to compare the agents that cause Otitis externa in dogs and cats, taking into account the breeds, gender, and age differences of these animals. The samples were taken from 63 dogs and cats that were suspected of having external ear infections and referred to veterinary clinics from north of Iran, including Mazandaran, Guilan, and Golestan provinces, within 24 months (from April 2019 to April 2021). After obtaining the consent, sampling was performed from the pinna and the end of the vertical ear canal. The prevalence of infection observed in dogs was: 28.57% for Malassezia, 28.57% for gram-positive bacteria, 11.91% gram-negative bacteria, 16.67% and 14.28% for Otobius megnini and Sarcoptes scabiei respectively, while in cats, the prevalence of Malassezia infections was 9.52%, 23.80% gram-positive bacteria, 19.04% gram-negative bacteria, 19.04% Otobius megnini, and 33.34% Notoedres cati. There was no statistically significant difference between the studied dogs and cats with the variables of age, gender, and breed. Identifying the agents causing external ear infections and paying attention to factors such as etiologies, geographical effects, region climate, disease-causing agents, breed differences, gender, and age in Iran is crucial and can improve the rate of success in management and treatment of external ear infections. Therefore, it seems that due to the limited number of these studies in Iran, additional studies in this field are necessary. Among dogs and cats in the north of Iran, this study represents the first assessment of external otitis.

Keywords: Ear; Otitis externa; Dog; Cat; Iran

References

1. Logas Dawn B. "Diseases of the ear canal”. Veterinary Clinics of North America: Small Animal Practice5 (1994): 905-919.
2. Brame Bailey and Christine Cain. "Chronic Otitis in Cats: Clinical management of primary, predisposing and perpetuating factors”. Journal of Feline Medicine and Surgery5 (2021): 433-446.
3. August John R. "Otitis externa: a disease of multifactorial etiology”. Veterinary Clinics of North America: Small Animal Practice4 (1988): 731-742.
4. Ettinger Stephen J and Edward C Feldman. "Veterinary internal medicine”. Edn7 (2010): 2086-2088.
5. Hariharan Harry., et al. "Update on antimicrobial susceptibilities of bacterial isolates from canine and feline otitis externa”. The Canadian Veterinary Journal3 (2006): 253.
6. Wipperman Jennifer. "Otitis externa”. Primary Care: Clinics in Office Practice1 (2014): 1-9.
7. Karnad V V., et al. "Cytological and microbiological analysis of canine otitis externa”. Indian Journal of Animal Research10 (2020): 1309-1313.
8. Slatter Douglas H. “Textbook of small animal surgery”. Elsevier health sciences, 1 (2003).
9. Vahar Mohsen., et al. "Report of congenital colonobladder fistula with atresia ani in a lamb and treatment by surgery”. Asian Pacific Journal of Tropical Disease5 (2015): S181-S183.
10. Mollalo Abolfazl., et al. "Geographic information system‐based analysis of the spatial and Spatio-temporal distribution of zoonotic cutaneous leishmaniasis in Golestan Province, north‐east of Iran”. Zoonoses and Public Health1 (2015): 18-28.
11. Taghvaye Salimi E., et al. "Land use planning for land management using the geographic information system (GIS) in the Loumir watershed of Guilan province in northern Iran”. Caspian Journal of Environmental Sciences2 (2008): 141-149.
12. Durdu Murat., et al. "Epidemiological characteristics of Malassezia folliculitis and use of the May-Grünwald-Giemsa stain to diagnose the infection”. Diagnostic Microbiology and Infectious Disease4 (2013): 450-457.
13. Tripathi Nishant and Amit Sapra. "Gram staining”. (2020).
14. Vercelli Cristina., et al. "In vitro and in vivo evaluation of a new phytotherapeutic blend to treat acute externa otitis in dogs”. Journal of Veterinary Pharmacology and Therapeutics6 (2021): 910-918.
15. Crespo MJ., et al. "Occurrence of Malassezia spp. in the external ear canals of dogs and cats with and without otitis externa”. Medical Mycology2 (2002): 115-121.
16. Kumar A., et al. "Prevalence of Malassezia pachydermatis and other organisms in healthy and infected dogs ears”. Israel Journal of Veterinary Medicine4 (2002): 145-148.
17. Machado M., et al. "Otites e dermatites por Malassezia sp. em căes e gatos”. Clínica Veterinaria44 (2003): 27-32.
18. Nobre Márcia de Oliveira, et al. "Occurrence of Malassezia pachydermatis and other infectious agents as the cause of external otitis in dogs from the Rio Grande do Sul State, Brazil (1996/1997)”. Brazilian Journal of Microbiology32 (2001): 245-249.
19. Bond Ross., et al. "Biology, design, osis, and treatment of Malassezia dermatitis in dogs and cats Clinical Consensus Guidelines of the World Association for Veterinary Dermatology”. Veterinary Dermatology1 (2020): 27-e34.
20. Shokri Hojjatollah., et al. "Occurrence of Malassezia species in Persian and domestic shorthair cats with and without otitis externa”. Journal of Veterinary Medical Science3 (2010): 293-296.
21. Bardshiri Bahador., et al. "Occurrence of Malassezia pachydermatis in the external ear canals of dogs with and without otitis externa”. Walia Journal30 (2014): 24-26.
22. Girão MD., et al. "Malassezia pachydermatis isolated from normal and diseased external ear canals in dogs: a comparative analysis”. The Veterinary Journal3 (2006): 544-548.
23. Nascente P S., et al. "Malassezia pachydermatis presence in canine external otitis and dermatopathies”. Journal of Yeast and Fungal Research3 (2015): 25-30.
24. de Oliveira Verônica Baldim., et al. "Etiology, antimicrobial susceptibility profile and epidemiological aspects in canine otitis: a retrospective study of 616 cases”. Semina: Ciências Agrárias6 (2012): 2367-2374.
25. Topală ROXANA., et al. "Epidemiological studies of otitis externa at carnivores”. Lucrări Ştiinłifice Medicină Veterinară40 (2007): 247-251.
26. August J H. “Diseases of the ear canal. In the Complete Manual of Ear Care”. Lawrenceville, New Jersey, Veterinary Learning Systems (1986).
27. Mircean VIORICA., et al. "Epidemiological aspects of otitis externa in dogs”. Lucrări Stiinłifice Medicină Veterinară41 (2008): 427-436.
28. Tang F L., et al. "Epidemiological Analysis of Ear Diseases in 221 Dogs in Northwest China”. bioRxiv (2019): 541516.
29. Perry Laura R., et al. "Epidemiological study of dogs with otitis externa in Cape Breton, Nova Scotia”. The Canadian Veterinary Journal2 (2017): 168.
30. Fernández Gibson., et al. "Isolation and identification of microorganisms present in 53 dogs suffering otitis externa”. Revista Cientifica-Universidad Del Zulia Facultad De Ciencias Veterinarias Division De Investigacion1 (2006): 23.
31. Perego Roberta., et al. "Prevalence of otitis externa in stray cats in northern Italy”. Journal of Feline Medicine and Surgery6 (2014): 483-490.

Citation

Citation: Mohammad Asadi Iraee., et al. “Epidemiological Investigation of Bacterial, Fungal and Parasitic Factors Causing Otitis externa in Dogs and Cats in Northern Iran from 2019 to 2021".Acta Scientific Veterinary Sciences 4.11 (2022): 148-154.

Copyright

Copyright: © 2022 Mohammad Asadi Iraee., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.