TITLE

Valor diagnóstico del examen citólogico en las otitis externas de caninos

AUTHOR(S)
Boehringer, S. I.
PUB. DATE
May 2011
SOURCE
Revista Veterinaria;2011, Vol. 22 Issue 1, p38
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Malassezia are lipophilic yeast, commensal organisms ofhuman and animal skin. The yeast has often been isolated from otitis externa cases as the most common organism and complicating factor. The purpose of this study was to evaluate the effectiveness of cytology as a diagnostic methodology in canine external otitis in Corrientes City (Argentina). amples from the auditory tube of95 dogs with otitis and from 95 healthy dogs were obtained. Sterile cotton swabs were used to collect specimens from the external ear canal and then cultured in agar abouraud and modified Dixon's agar. Cytological examinations were performed to detect the presence and population size of Malassezia yeast. Each swab was rolled on a clean glass slide and stained with Gram Kopeloff. Ten fields were examined microscopically using an oil immersion objective (lOOOx magnification). The isolation of M pachydermatis in dogs with external otitis (70.52%), in relation to the healthy animals (28.42%) was significant (p<0.05). The agreement between cytological results and fungal cultures were also statistically significant. The performance of the cytological examination and the culture showed a sensitivity around 75.79% and 70.53%; specificity was 50.53% and 71.58%; whereas predictive values were 60% and 70%, respectively. Cytological examination of otic exudate confirms Malassezia overgrowth. ln the present investigation the results indicated that 2: 10 yeast count per high- power fields (oil immersion objective) allows to identify and characterize the microbial infection. Nevertheless, considering the test sensitivity and low specificity obtained attributable to the unequal distribution of yeast observed in the healthy population, it is necessary to use two or more simultaneous techniques to detect Malassezia, determine the medical significance, and confirm infection.
ACCESSION #
70093555

 

Related Articles

  • Otitis Externa: A Practical Guide to Treatment and Prevention.  // American Family Physician;3/1/2001, Vol. 63 Issue 5, p927 

    Otitis externa is most commonly caused by infection (usually bacterial, although occasionally fungal), but it may also be associated with a variety of noninfectious systemic or local dermatologic processes. The most characteristic symptom is discomfort that is limited to the external auditory...

  • Stick with it. Greenhalgh, Trisha // Accountancy;Nov99, Vol. 124 Issue 1275, p81 

    Glue ear has hit headlines twice in the past 40 years. The first time was when physicians invented the grommet, a plastic tube that could be inserted right through the ear drum, allowing catarrh to drain out through the drum into the external ear canal. Inserting a grommet often cures the...

  • Polyp of the external auditory canal with two attachments. Della Torre, Thomas D.; Pulec, Jack L. // ENT: Ear, Nose & Throat Journal;Mar2003, Vol. 82 Issue 3, p156 

    Describes a benign granulation-tissue polyp within the right external auditory canal of a man with acute otitis externa. Appearance of the polyp; Otoscopic view of the polypoid tissue; Treatment.

  • Ask Dr Andrew.  // Woman's Day (Australia Edition);1/23/2006, Vol. 58 Issue 4, p72 

    The article provides information on the cause and prevention for painful red ears or otitis externa after swimming. Home care can cure painful ears. Disruption of the skin lining the ear canal often causes painful red ears. Excessive moisture in the ear canals which leads to invasion of bacteria...

  • The ins and outs of common ear problems. D'Epiro, Peter // Patient Care;Apr2002, Vol. 36 Issue 6, p56 

    Provides information on the treatment for several common ear problems. Acute otitis media; Otitis media with effusion; Otitis externa; Eustachian tube dysfunction. INSET: The whole ball of wax.

  • The ins and outs of childhood deafness. Essex, Charles // New Zealand Doctor;3/28/2007, p18 

    The article focuses on childhood deafness. It identifies some of the factors causing hearing loss in children including problems in the outer, middle or inner ear. It explains the effect of high frequency loss on a child's ability to understand language. It discusses the characteristics and...

  • Otitis Externa at a Glance. Gotthelf, Louis N. // Veterinary Team Brief;Sep/Oct2013, p30 

    The article discusses examination, cytology and cleaning of otitis externa, an ear infection in pets. Topics discussed include ensuring visibility of eardrum if horizontal ear canal is swollen, stenotic, or impacted with debris, presence of smooth hairs in the vertical canal than in the...

  • Pet Parents Want to Know! Gotthelf, Louis N. // Veterinary Team Brief;Sep/Oct2013, p38 

    The article discusses treatment and diagnosis of otitis externa or inflammation of the ear canal in pets. Topics discussed include development of an infection if anything foreign enters the ear canal such as ear mites and plant material, impact of canine allergies on dog's skin and the warm and...

  • Management of the Patient with Otitis Externa. Holten, Keith B.; Gick, Janet // Journal of Family Practice;Apr2001, Vol. 50 Issue 4, p353 

    Otitis externa (OE), also referred to as external otitis, is inflammation of the auricle, external ear, or tympanic membrane. The severity can range from mild inflammation to life-threatening infection. It is commonly seen by family physicians and affects 4 out of each 1000 Americans every year....

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics