otitis externa

Summary

Summary: Inflammation of the OUTER EAR including the external EAR CANAL, cartilages of the auricle (EAR CARTILAGE), and the TYMPANIC MEMBRANE.

Top Publications

  1. Sreepada G, Kwartler J. Skull base osteomyelitis secondary to malignant otitis externa. Curr Opin Otolaryngol Head Neck Surg. 2003;11:316-23 pubmed
    Skull base osteomyelitis secondary to malignant otitis externa was first described in 1959. Since then, advances have been made in the diagnosis, treatment, and clinical outcomes of this condition.
  2. Rougier S, Borell D, Pheulpin S, Woehrlé F, Boisramé B. A comparative study of two antimicrobial/anti-inflammatory formulations in the treatment of canine otitis externa. Vet Dermatol. 2005;16:299-307 pubmed
    ..In a total of 140 dogs with clinical signs of acute or subacute otitis externa, Staphylococcus, Pseudomonas, Enterobacteriaceae and Malassezia were isolated from samples taken at inclusion ..
  3. Penna B, Varges R, Medeiros L, Martins G, Martins R, Lilenbaum W. Species distribution and antimicrobial susceptibility of staphylococci isolated from canine otitis externa. Vet Dermatol. 2010;21:292-6 pubmed publisher
    ..The results highlight the recognition and the potential need for bacterial culture with species identification and antimicrobial susceptibility tests for appropriate antimicrobial therapy...
  4. Cole L, Papich M, Kwochka K, Hillier A, Smeak D, Lehman A. Plasma and ear tissue concentrations of enrofloxacin and its metabolite ciprofloxacin in dogs with chronic end-stage otitis externa after intravenous administration of enrofloxacin. Vet Dermatol. 2009;20:51-9 pubmed publisher
    ..of enrofloxacin and ciprofloxacin, and determine appropriate doses of enrofloxacin for treatment of chronic otitis externa and media...
  5. Zawacki A, O ROURKE E, Potter Bynoe G, Macone A, Harbarth S, Goldmann D. An outbreak of Pseudomonas aeruginosa pneumonia and bloodstream infection associated with intermittent otitis externa in a healthcare worker. Infect Control Hosp Epidemiol. 2004;25:1083-9 pubmed
    ..To investigate an outbreak of Pseudomonas aeruginosa pneumonia and bloodstream infection among four neonates, determine risk factors for infection, and implement preventive strategies...
  6. Mekic S, Matanović K, Seol B. Antimicrobial susceptibility of Pseudomonas aeruginosa isolates from dogs with otitis externa. Vet Rec. 2011;169:125 pubmed publisher
    Pseudomonas aeruginosa is a common cause of otitis externa in dogs, and treatment of these infections is becoming problematic because of the increasing number of multiresistant strains...
  7. Parize P, Chandesris M, Lanternier F, Poiree S, Viard J, Bienvenu B, et al. Antifungal therapy of Aspergillus invasive otitis externa: efficacy of voriconazole and review. Antimicrob Agents Chemother. 2009;53:1048-53 pubmed publisher
    Invasive otitis externa (IOE) due to Aspergillus is a rare, potentially life-threatening, invasive fungal infection affecting immunocompromised patients...
  8. Aderibigbe A, Ologe F. Cervical spinal tuberculosis with tuberculous otitis media masquerading as otitis externa malignans in an elderly diabetic patient: case report. East Afr Med J. 2004;81:267-70 pubmed
    ..This case underscores the value of high index of suspicion, thorough and complete clinical evaluation in any patient with chronic symptoms and signs unresponsive to conventional treatment...
  9. Ismail H, Hellier W, Batty V. Use of magnetic resonance imaging as the primary imaging modality in the diagnosis and follow-up of malignant external otitis. J Laryngol Otol. 2004;118:576-9 pubmed
    ..Traditionally computed tomography (CT) has been the imaging modality of choice. The authors present a case where magnetic resonance imaging (MRI) has been crucial in the diagnosis and follow up of a patient with MEO...

More Information

Publications62

  1. Martin T, Kerschner J, Flanary V. Fungal causes of otitis externa and tympanostomy tube otorrhea. Int J Pediatr Otorhinolaryngol. 2005;69:1503-8 pubmed
    To describe the occurrence of fungal organisms in the setting of otitis externa and tympanostomy tube otorrhea, review the treatment course, timing of diagnosis, organism identified and time to resolution with fungal infections.
  2. Soudry E, Hamzany Y, Preis M, Joshua B, Hadar T, Nageris B. Malignant external otitis: analysis of severe cases. Otolaryngol Head Neck Surg. 2011;144:758-62 pubmed publisher
    ..To study the effect of specific clinical, laboratory, and imaging parameters on the course of severe (type 1) malignant external otitis (MEO)...
  3. Thio D, Reece P, Herdman R. Necrotizing otitis externa: a painless reminder. Eur Arch Otorhinolaryngol. 2008;265:907-10 pubmed publisher
    Necrotizing otitis externa is a necrotizing osteomyelitis of the skull base that predominantly affects diabetic and immunocompromised patients. Pseudomonas aeruginosa is the most frequently implicated organism...
  4. Marom T, Yelin R, Goldfarb A, Rakover Y, Shlizerman L, Eilat E, et al. Comparison of safety and efficacy of foam-based versus solution-based ciprofloxacin for acute otitis externa. Otolaryngol Head Neck Surg. 2010;143:492-9 pubmed publisher
    To compare and evaluate the efficacy and safety of a foam-based antibiotic formulation in the treatment of acute otitis externa (AOE) with the more conventional solution-based formulation.
  5. Beers S, Abramo T. Otitis externa review. Pediatr Emerg Care. 2004;20:250-6 pubmed
  6. Jadhav V, Pal M, Mishra G. Etiological significance of Candida albicans in otitis externa. Mycopathologia. 2003;156:313-5 pubmed
    ..investigated mycologically to elucidate the role of Candia albicans, an opportunistic polymorphic yeast, in otitis externa. C...
  7. Chang P, Fischbein N, Holliday R. Central skull base osteomyelitis in patients without otitis externa: imaging findings. AJNR Am J Neuroradiol. 2003;24:1310-6 pubmed
    ..The purpose of this study was to review the clinical and MR imaging features of central skull base osteomyelitis...
  8. Collier S, Hlavsa M, Piercefield E, Beach M. Antimicrobial and analgesic prescribing patterns for acute otitis externa, 2004-2010. Otolaryngol Head Neck Surg. 2013;148:128-34 pubmed publisher
    Acute otitis externa (AOE) is a common but preventable ear condition. Clinical guidelines issued in 2006 recommended topical treatments for uncomplicated AOE, but systemic antimicrobials appear to be commonly prescribed...
  9. Osguthorpe J, Nielsen D. Otitis externa: Review and clinical update. Am Fam Physician. 2006;74:1510-6 pubmed
    b>Otitis externa can take an acute or a chronic form, with the acute form affecting four in 1,000 persons annually and the chronic form affecting 3 to 5 percent of the population...
  10. Ali T, Meade K, Anari S, ElBadawey M, Zammit Maempel I. Malignant otitis externa: case series. J Laryngol Otol. 2010;124:846-51 pubmed publisher
    In the light of current concerns regarding ciprofloxacin resistance and the changing face of malignant otitis externa, we reviewed cases of malignant otitis externa treated in our centre, in order both to evaluate the current epidemiology ..
  11. Abelardo E, Pope L, Rajkumar K, Greenwood R, Nunez D. A double-blind randomised clinical trial of the treatment of otitis externa using topical steroid alone versus topical steroid-antibiotic therapy. Eur Arch Otorhinolaryngol. 2009;266:41-5 pubmed publisher
    ..to determine if the addition of topical antibiotic increases the efficacy of topical steroid in controlling otitis externa. A double-blind randomised controlled trial was performed from February 2003 to April 2005 in an ..
  12. Neher A, Nagl M, Scholtz A. [Otitis externa: etiology, diagnostic and therapy]. HNO. 2008;56:1067-79; quiz 1080 pubmed publisher
    b>Otitis externa (OE) occurs during the lifetime in approximately 10% of the population, especially in warm and damp climates or from swimming (swimmer's ear)...
  13. Hijazin M, Prenger Berninghoff E, Sammra O, Alber J, Lammler C, Kampfer P, et al. Arcanobacterium canis sp. nov., isolated from otitis externa of a dog, and emended description of the genus Arcanobacterium Collins et al. 1983 emend. Yassin et al. 2011. Int J Syst Evol Microbiol. 2012;62:2201-5 pubmed publisher
    ..study was performed on an unidentified Arcanobacterium-like Gram-stain-positive bacterium isolated from otitis externa of a dog...
  14. Rubin Grandis J, Branstetter B, Yu V. The changing face of malignant (necrotising) external otitis: clinical, radiological, and anatomic correlations. Lancet Infect Dis. 2004;4:34-9 pubmed
    ..Reservation of systemic quinolones for the treatment of invasive ear infections is recommended...
  15. Usui R, Usui R, Fukuda M, Fukui E, Hasegawa A. Treatment of canine otitis externa using video otoscopy. J Vet Med Sci. 2011;73:1249-52 pubmed
    b>Otitis externa in 27 toy poodles and 40 miniature dachshunds was treated using a video otoscope...
  16. Hamzany Y, Soudry E, Preis M, Hadar T, Hilly O, Bishara J, et al. Fungal malignant external otitis. J Infect. 2011;62:226-31 pubmed publisher
    ..To investigate the clinical characteristics and outcome of fungal malignant external otitis (MEO)...
  17. Toma S, Cornegliani L, Persico P, Noli C. Comparison of 4 fixation and staining methods for the cytologic evaluation of ear canals with clinical evidence of ceruminous otitis externa. Vet Clin Pathol. 2006;35:194-8 pubmed
    ..Swab cytology of ear canals is one of the most useful and rapid methods to assess the presence of external ear infections. Smears are generally stained with rapid Romanowsky-type stains, with or without prior heat fixation...
  18. Dizotti C, Coutinho S. Isolation of Malassezia pachydermatis and M. sympodialis from the external ear canal of cats with and without otitis externa. Acta Vet Hung. 2007;55:471-7 pubmed publisher
    ..Forty-five animals were studied, 20 with and 25 without otitis externa (OE)...
  19. Yamashita K, Shimizu A, Kawano J, Uchida E, Haruna A, Igimi S. 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. J Vet Med Sci. 2005;67:263-8 pubmed
    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)...
  20. Drehobl M, Guerrero J, Lacarte P, Goldstein G, Mata F, Luber S. Comparison of efficacy and safety of ciprofloxacin otic solution 0.2% versus polymyxin B-neomycin-hydrocortisone in the treatment of acute diffuse otitis externa*. Curr Med Res Opin. 2008;24:3531-42 pubmed
    To compare the efficacy and safety of ciprofloxacin otic solution 0.2% to polymyxin B-neomycin-hydrocortisone (PNH) otic solution in the treatment of acute diffuse otitis externa in children, adolescents, and adults.
  21. Pérez P, Ferrer M, Bermell A, Ramirez R, Saiz V, Gisbert J. [Malignant otitis externa. Our experience]. Acta Otorrinolaringol Esp. 2010;61:437-40 pubmed publisher
    Malignant otitis externa is a devastating disease that poses a diagnostic and therapeutic challenge...
  22. Morris D. Medical therapy of otitis externa and otitis media. Vet Clin North Am Small Anim Pract. 2004;34:541-55, vii-viii pubmed
    ..This article considers the specific antimicrobial agents available for otic use, their potential toxicities, and guidelines for their use...
  23. Yoo J, Yoon J, Lee S, Park H. High prevalence of Fluoroquinolone- and Methicillin-resistant Staphylococcus pseudintermedius isolates from canine pyoderma and otitis externa in veterinary teaching hospital. J Microbiol Biotechnol. 2010;20:798-802 pubmed
    ..total of 74 Staphylococcus pseudintermedius isolates were collected from clinical cases of canine pyoderma and otitis externa in Korea...
  24. Dohar J, Roland P, Wall G, McLean C, Stroman D. Differences in bacteriologic treatment failures in acute otitis externa between ciprofloxacin/dexamethasone and neomycin/polymyxin B/hydrocortisone: results of a combined analysis. Curr Med Res Opin. 2009;25:287-91 pubmed
    To compare treatment failure rates for the two major acute otitis externa (AOE) pathogens, Pseudomonas aeruginosa and Staphylococcus aureus, by topical therapy with ciprofloxacin 0.3%/dexamethasone 0.1% (CDex) or neomycin 0...
  25. Vourexakis Z, Kos M, Guyot J. Atypical presentations of malignant otitis externa. J Laryngol Otol. 2010;124:1205-8 pubmed publisher
    Malignant otitis externa is a life-threatening infection of the skull base. Its presentation is not always typical.
  26. Hajjartabar M. Poor-quality water in swimming pools associated with a substantial risk of otitis externa due to Pseudomonas aeruginosa. Water Sci Technol. 2004;50:63-7 pubmed
    ..Although the results of this research showed that otitis externa was strongly associated with the swimming pools, due to P...
  27. Omran A, El Garem H, Al Alem R. Recurrent malignant otitis externa: management and outcome. Eur Arch Otorhinolaryngol. 2012;269:807-11 pubmed publisher
    ..Ten patients attending the ENT Department, Alexandria University were included. They had recurrence of otitis externa over a period of 6 months after-cure, as well as severe night otalgia and high ESR level...
  28. . Estimated burden of acute otitis externa--United States, 2003-2007. MMWR Morb Mortal Wkly Rep. 2011;60:605-9 pubmed
    Acute otitis externa (AOE) (swimmer's ear) is inflammation of the external auditory canal most often caused by bacterial infection...
  29. Oliveira L, Leite C, Brilhante R, Carvalho C. Comparative study of the microbial profile from bilateral canine otitis externa. Can Vet J. 2008;49:785-8 pubmed
    Fifty dogs with bilateral otitis externa were studied over a 10-month period. The exudates of both external ears were obtained, using sterile swabs, and microorganisms were isolated according to standard microbiological techniques...
  30. Nogueira J, Diniz M, Lima E. In vitro antimicrobial activity of plants in Acute Otitis Externa. Braz J Otorhinolaryngol. 2008;74:118-24 pubmed
    Acute Otitis Externa is an inflammation of the outer auditory meatus, and according to popular saying, medicinal plant extracts can be used in its treatment.
  31. Roland P, Belcher B, Bettis R, Makabale R, Conroy P, Wall G, et al. A single topical agent is clinically equivalent to the combination of topical and oral antibiotic treatment for otitis externa. Am J Otolaryngol. 2008;29:255-61 pubmed publisher
    ..noninferiority) of topical ciprofloxacin and hydrocortisone (CHC, Cipro HC) and topical neomycin/polymyxin b/hydrocortisone (NPH, Cortisporin) with systemic amoxicillin (AMX, Amoxil), for treatment of acute otitis externa (AOE).
  32. Soudry E, Joshua B, Sulkes J, Nageris B. Characteristics and prognosis of malignant external otitis with facial paralysis. Arch Otolaryngol Head Neck Surg. 2007;133:1002-4 pubmed
    ..To compare the characteristics and prognosis of patients with malignant (necrotizing) external otitis (MEO) with and without facial nerve palsy in today's era of third-generation antibiotics...
  33. Hariharan H, Coles M, Poole D, Lund L, Page R. Update on antimicrobial susceptibilities of bacterial isolates from canine and feline otitis externa. Can Vet J. 2006;47:253-5 pubmed
    The in vitro susceptibility of a total of 1819 bacterial isolates from canine and 103 isolates from feline otitis externa cases to 13 antimicrobial drugs over a 5-year period was evaluated...
  34. Marzo S, Leonetti J. Invasive fungal and bacterial infections of the temporal bone. Laryngoscope. 2003;113:1503-7 pubmed
  35. Carfrae M, Kesser B. Malignant otitis externa. Otolaryngol Clin North Am. 2008;41:537-49, viii-ix pubmed publisher
    Malignant otitis externa is an invasive, potentially life-threatening infection of the external ear and skull base that requires urgent diagnosis and treatment...
  36. Rahman A, Rizwan S, Waycaster C, Wall G. Pooled analysis of two clinical trials comparing the clinical outcomes of topical ciprofloxacin/dexamethasone otic suspension and polymyxin B/neomycin/hydrocortisone otic suspension for the treatment of acute otitis externa in adults and children. Clin Ther. 2007;29:1950-6 pubmed
    ..3%/dexamethasone 0.1% (CD) otic suspension with that of those receiving polymyxin B/neomycin/ hydrocortisone (PNH) otic suspension for the treatment of acute otitis externa (AOE).
  37. Chen C, Chen Y, Yeh T, Hsu C, Tseng F. Outcomes of malignant external otitis: survival vs mortality. Acta Otolaryngol. 2010;130:89-94 pubmed publisher
    ..Severe complications such as skull base osteomyelitis, intracranial extension, and involvement of multiple cranial nerves were correlated with mortality...
  38. Kumar P, Smelt G. A long term follow up of conchal flap meatoplasty in chronic otitis externa. J Laryngol Otol. 2007;121:1-4 pubmed
    A long-standing diffuse chronic otitis externa can lead to itching. Resultant scratching may then lead to irreversible skin changes with canal stenosis by scar tissue...
  39. Matar G, Harakeh H, Ramlawi F, Khneisser I, Hadi U. Comparative analysis between Pseudomonas aeruginosa genotypes and severity of symptoms in patients with unilateral or bilateral otitis externa. Curr Microbiol. 2001;42:190-3 pubmed
    ..center in Beirut, Lebanon, during a 5-month period with the diagnosis of either unilateral or bilateral otitis externa. Patients had yellowish to greenish discharge, moderate to severe external auditory canal swelling, moderate ..
  40. Tejedor Junco M, Martín Barrasa J. Identification and antimicrobial susceptibility of coagulase positive staphylococci isolated from healthy dogs and dogs suffering from otitis externa. J Vet Med B Infect Dis Vet Public Health. 2002;49:419-23 pubmed
    A total of 67 strains of coagulase positive staphylococci isolated from healthy dogs and dogs suffering from otitis externa were studied...
  41. Angus J, Lichtensteiger C, Campbell K, Schaeffer D. Breed variations in histopathologic features of chronic severe otitis externa in dogs: 80 cases (1995-2001). J Am Vet Med Assoc. 2002;221:1000-6 pubmed
    To compare pathologic changes of the horizontal ear canal associated with chronic severe otitis externa between Cocker Spaniels and dogs of other breeds.
  42. Roland P, Stroman D. Microbiology of acute otitis externa. Laryngoscope. 2002;112:1166-77 pubmed
    To isolate and characterize bacteria and fungi from acute otitis externa (AOE) and to obtain susceptibility profiles on each bacterial isolate.
  43. Billington S, Post K, Jost B. Isolation of Arcanobacterium (Actinomyces) pyogenes from cases of feline otitis externa and canine cystitis. J Vet Diagn Invest. 2002;14:159-62 pubmed
    ..pyogenes from companion animals are reported. In the first case, a cat presented with a chronic otitis externa, from which A. pyogenes was isolated in pure culture...
  44. Rowlands S, Devalia H, Smith C, Hubbard R, Dean A. Otitis externa in UK general practice: a survey using the UK General Practice Research Database. Br J Gen Pract. 2001;51:533-8 pubmed
    b>Otitis externa is a common clinical problem in general practice and yet there are remarkably few data available on the demographic characteristics of patients with this condition and the approaches used by general practitioners (GPs) in ..
  45. Sander R. Otitis externa: a practical guide to treatment and prevention. Am Fam Physician. 2001;63:927-36, 941-2 pubmed
    b>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...
  46. Masterson L, Banfield G. Self assessment questions in ear, nose & throat surgery. J R Army Med Corps. 2010;156:49-53 pubmed
    ..Ear, nose and throat conditions make up a large amount of a Medical Officer's clinical workload. The examples given here illustrate some principles that should be employed when dealing with such problems...
  47. Fücsek M, Kelemen A, Jakabos P. [Necrotizing otitis externa in a 5-month-old infant]. Orv Hetil. 2007;148:2143-6 pubmed
    This report presents the case of a healed 5-month-old infant with necrotising (malignant) bilateral otitis externa from acute mastoiditis on the right side and sepsis caused by Pseudomonas aeruginosa infection...
  48. Campbell J, Coyner K, Rankin S, Lewis T, Schick A, Shumaker A. Evaluation of fungal flora in normal and diseased canine ears. Vet Dermatol. 2010;21:619-25 pubmed publisher
    ..flora encountered in normal dogs, atopic dogs with no clinical or cytological evidence of otitis and dogs with otitis externa. Forty-two normal dogs, 23 atopic dogs and 32 dogs with otitis were included in the study...
  49. Mathews K, Hardie E, Murphy K. Subtotal ear canal ablation in 18 dogs and one cat with minimal distal ear canal pathology. J Am Anim Hosp Assoc. 2006;42:371-80 pubmed
    ..Subtotal ear canal ablations were performed in 18 dogs and one cat for the treatment of otitis externa or masses of the horizontal ear canal...
  50. Narozny W, Kuczkowski J, Mikaszewski B. Experiences in applying oxygen therapy in some otolarynological diseases. World J Surg. 2004;28:1068-9; author reply 1069 pubmed
  51. Heathcote K, Harris E, Brewster V, Nevel M, Coggon D. Skin disease in sheep farmers. Occup Med (Lond). 2011;61:515-7 pubmed publisher
    ..An unusual inflammation of the pinna has been reported to occur in some sheep farmers at the time of lambing...
  52. Lyskova P, Vydrzalova M, Mazurova J. Identification and antimicrobial susceptibility of bacteria and yeasts isolated from healthy dogs and dogs with otitis externa. J Vet Med A Physiol Pathol Clin Med. 2007;54:559-63 pubmed
    The bacterial and fungal flora of the external ear canal of dogs with otitis externa and of healthy dogs were studied. The most frequently isolated microorganism from otitic ears was Staphylococcus intermedius (58...
  53. Börner D, Marsch W, Fischer M. [Necrotizing otitis externa caused by Stenotrophomonas maltophilia]. Hautarzt. 2003;54:1080-2 pubmed
    ..A patient with chronic lymphocytic leukemia developed a cutaneous infection with the clinical pattern of necrotizing otitis externa.