Cases Of Otitis Externa Research Articles

A pathologic and bacteriologic study on otitis media in swine.

A pathologic and bacteriologic study on otitis media in swine was performed on 237 swine, ranging in age from 1 day to 1 year. These 237 swine from eight selected farms were slaughtered due to unfavorable prognosis associated with clinical signs of illness. One hundred sixty-three (68.8%) of the 237 swine were found to be affected with otitis, though only a few swine showed clinical signs characteristic of the disease. One hundred fifty-one (63.7%), 53 (22.4%), and 39 (16.5%) had lesions in the middle, external, and internal ear, respectively. Of the 151 cases with otitis media, bilateral and unilateral infection accounted for 114 (75.5%) and 37 (24.5%), respectively. Only 5/53 swine with otitis externa and 6/39 swine with otitis interna failed to show otitis media. All swine with infection in the tympanic cavity had inflammatory lesions in the auditory tube. Examination of the swine grouped by age revealed that, regardless of age, incidence of otitis media was 50-70%. In swine younger than 1 month old, otitis media tended to center on the auditory tube, where a mild infiltration of neutrophils into the mucous membrane was frequent. Thereafter, otitis media increased in degree and extent with age. Forty (26.5%) of the 151 swine affected with otitis media were accompanied by a substantial amount of inflammatory exudate in the tympanic cavity and bulla. Purulent exudate was found in 20/40 (50%) swine. Severe otitis media prevailed in swine between 1 and 4 months of age, showing inspissation of a suppurative exudate in the tympanic cavity and lysis of the underlying osseous wall of the tympanic bulla with subsequent fibrosis.(ABSTRACT TRUNCATED AT 250 WORDS)

Personal studies on the current spectrum of pathogenic bacteria in otitis externa and chronic otitis media

From 1985-1987 smears (for Gram staining) and swabs (for culture and antibiogram) were done in 294 patients suffering from chronic otitis media, and in 67 cases of external otitis. Besides the comparison of these two procedures, the microbial spectrum in case of external otitis and chronic otitis media is considered and compared to the literature. Pseudomonas aeruginosa and Staphylococcus aureus are the most frequent pathogens. Often gram-positive rod-shaped bacilli were also found, the pathogenicity of which has been underestimated in the literature up to now. The anaerobes did not play an important role in our patients. The value of gram staining (immediate information and safer antibiotic therapy) is pointed out on the basis of the reported results.

Granulomatous otitis externa (reactive granuloma)

124 cases of otitis externa with reactive granuloma formation at the cartilaginous part of the external canal are described. This form of otitis externa is common in this part of India, where the climate is very hot and humid and the incidence is found to be more during the humid months of the year. This is different from diffuse otitis externa which has received various nomenclature such as “Singapore Ear”, “Hongkong Ear”, “Tropical Ear” etc. Other uncommon granulomatous diseases of the ear such as eosinophilic granuloma, Necrotising otitis externa, Hans Schuller’s disease, etc are excluded. The disease is common in children and young adults. Details of symptomatology, clinical presentation, bacteriological and therapeutic observations are described. The reactive origin of the granulation tissue formation is discussed and analysed. Different exciting, aggravating and precipitating factors in the formation of granulomatous tissue in this form of otitis externa are also discussed.

Action of EDTA-Tris and antimicrobial agent combinations on selected pathogenic bacteria

The concentration of EDTA-Tris (3.22 mM EDTA and 0.05 M Tris) used as a lavage to treat otitis externa, cystitis or other persistent infections in dogs and cats, was found to prevent the growth of Pseudomonas aeruginosa, Staphylococcus aureus and beta streptococci when present in growth media. Pseudomonas aeruginosa was rapidly lysed in this solution. Escherichia coli and Proteus vulgaris grew in the presence of EDTA-Tris, but to a lesser extent than the controls without these compounds. Minimal inhibitory concentrations (MIC) for 8 antimicrobial agents with and without EDTA-Tris were determined for E. coli and P. vulgaris. A potentiation effect on E. coli (> 50% decrease MIC) was observed when EDTA-Tris was combined with penicilline, oxytetracycline or chloramphenicol. A similar effect was observed with P. vulgaris when combinations of EDTA-Tris plus gentamicin, oxytetracycline, polymyxin-B or triple sulfa were used. The results of this study indicate that EDTA-Tris appears to have merit in selected cases of otitis externa, cystitis or other persistent infections where lavage might be used.

A epidemiological assessment of water quality and "swimmer's ear".

In an effort to determine if bacterial water quality was related to the incidence of otitis externa (swimmer's ear), a retrospective study was conducted from July, 1980 to September, 1980. Data from 29 cases and 29 controls matched for age and sex were collected. Warm air, warm water, age of less than 18 yr, swimming, and length of time spent swimming were associated positively with cases of otitis externa. Water quality, as measured by fecal coliforms, enterococci, and Pseudomonas aeruginosa was not found to be associated with otitis externa.

Otomycosis in Burma, and its treatment.

Otomycosis of the auditory canal is common in Burma. Of 346 cases of otitis externa seen in a hospital outpatient clinic during two consecutive rainy seasons, 189 were due to fungus infection. Aspergillus species were the fungi isolated most frequently. Infection was most commonly due to self-manipulation. Itching and tinnitus were common complaints. Treatment by local cleansing and application of antifungal agents was effective, 10% 5-fluorocytosine ointment being most successful.

The role of Pityrosporum pachydermatis in otitis externa of dogs: evaluation of a treatment with miconazole.

The bacterial and mycotic flora were assessed in 158 ears of dogs with otitis externa and in 101 ears of healthy control dogs. Pityrosporum pachydermatis occurred in 57 per cent of ears with otitis externa and in 17 per cent of clinically healthy ears. Staphylococci and Pseudomonas aeruginosa were the predominant bacteria in otitic ears, micrococci and Bacillus spp were the most frequent isolates from clinically healthy ears. P pachydermatis, Ps aeruginosa and Candida tropicalis occurred in monoculture in a significant number of mainly chronic cases of otitis externa. A combination preparation, containing miconazole, polymyzin B and prednisolone, was highly effective in controlling the clinical signs of otitis externa and eliminating flora from the affected ears. The data presented suggest that yeasts, and especially P pachydermatis, may be significant pathogens in otitis externa and that antimycotic treatment is an essential part of the treatment of otitis externa in dogs.

Les otomycoses

Otomycosis is a relatively frequent disorder (21.7% of the cases of external otitis) of fungal origin. Otomycoses can be discriminated from bacterial otitis by the following symptoms: itching, absence of otalgy, discharge and negative response to different local antibiotic therapies. Our study involves 148 cases of otomycosis and their therapy. Recovery was obtained in approximately 10 days.

Chemical treatment of external otitis.

From 1962 through 1969, 2,008 cases of external otitis were treated chemically. The auditory canal was cleaned and a gauze wick saturated with 20% silver nitrate solution was introduced. The next day the wick was replaced with one saturated with Burow's solution. After two to three days, this wick was removed and the canal cleaned. Results were excellent in 1,593 cases, good in 398 cases, and poor in 17 cases.

Ear disease in elementary school children in Miraj, India.

An otorhinolaryngologic survey of 518 elementary school children was carried out in Miraj, Maharashtra State, India. The incidence of otitis and the invitro sensitivity of the organisms involved is herein reported. An incidence of 12.9% ear disease with 10.4% incidence of chronic otitis media was found. This is 20% higher than the general population in the United States and 5% higher than the Navajo Indians of New Mexico. Of the 67 children with ear disease about 20% have otitis externa and 80% chronic otitis media. In the latter group 88.9% and of course 100% of the otitis externa cases had active otorrhea.

Treatment of otitis externa and swimmer's ear.

THE SUMMER SEASON invariably brings an increased incidence of external otitis. Most cases are bacterial in origin and generally of low virulence. The condition is prone to recur because of the peculiar structure of the auditory canal, which permits water and foreign material to enter and be retained. Pathology In about 70% of cases of external otitis, the predominant organism isPseudomonas aeruginosa, a gram-negative organism. The remainder includesStaphylococcus aureus, Staph. albus, Diphtheroids, Escherichia coli, Proteus vulgaris, and a number of others. Maceration of the skin of the canal from water, trauma from foreign objects (particularly of organic character), and moist climatic conditions favor growth of fungi. Fungus infections of the external auditory canal have always presented a problem, since fungi resist most of the commonly used otitis preparations. Contrary to the layman's belief, however, most cases of so-called fungus ear are in reality bacterial infections, and fungi—when present—are

The Role of Pseudomonas Aeruginosa in Infections About the Nails

Pseudomonas aeruginosa has been accepted as the causative agent in certain cases of external otitis, otitis media, meningitis, septicemia, infant diarrhea, and in some genitourinary infections. It has seldom been considered as more than a secondary invader of devitalized tissue in skin lesions in which it was found. We have studied four cases in which it was difficult to relegate the role of Pseudomonas to that of a secondary invader. The infection began about the nail in all cases. Good therapeutic results were obtained only when agents to which Pseudomonas was sensitive were used. Case1.—A 45-year-old housewife had a paronychial infection of the middle finger of the right hand of one year's duration. The involved nail was discolored blue-black and green. Incision and drainage of this area had been performed because of cellulitis, and penicillin was subsequently administered. Because of the discoloration of the nail, Pseudomonas infection

A practical approach to external otitis.

• An individual case of external otitis should not be considered to be idiopathic until it has been shown that a definitive diagnosis cannot be made. Establishment of an etiological diagnosis can be facilitated by clues derived from a careful history (e.g., dermatitis of other areas) and extensive clinical and laboratory examination (e.g., biopsy, if indicated). A dermatitis of the external auditory canal can represent the first manifestation of a systemic disease. Therapeutic success often depends on the physician's ability to interpret the anamnestic, clinical, and laboratory findings.

External Otitis: A Method of Therapy and Prophylaxis

Recent investigations into the etiology and pathogenesis of external otitis have brought about a more rational method of therapy and possibly prophylaxis. Studies of the bacteriology and mycology of external otitis have been going on for many years. It has been only during the past few years, however, that interest has been directed toward explaining why this condition is so characteristically recurrent. The antibiotics and their peculiar bacterial spectra of activity have changed our mode of thinking. When we are confronted with an infectious process we now ask ourselves the following: What is the organism? Is it pathogenic, and to what antibiotic is it sensitive? Since we have been armed with this information pathogenic organisms have become an easy prey to our drugs—a far cry from the practice of medicine several years ago. All the recent investigations have uniformly reported that the vast majority of cases of external otitis are

A case of otitis externa apparently caused by salmonella florida

A case of otitis externa apparently caused by salmonella florida

Otitis media and complications.

THERE were a number of interesting contributions to otolaryngology in 1950, one of which was the symposium on penicillin in severe otolaryngological complications prepared by the Danish, Norwegian, and Swedish Otolaryngological Societies. The material was made up from 421 replies to questionnaires from 50 different departments and clinics. Another interesting symposium was held by the Otological Section of the Royal Society of Medicine, in which the theories of the formation of cholesteatoma were discussed. Different aspects of these papers will be discussed under separate headings. Comments of the reviewer appear in brackets. <h3>DIAGNOSIS</h3> Senturia, Matthews, and Adler¹studied the secretions in 175 cases of external otitis and otitis media. They found, to their surprise, that in acute or chronic external otitis there were produced enormous numbers of epithelial cells and bacteria but no neutrophiles or lymphocytes. Eosinophiles were also rarely found. They explained this lack of pus cells by

TREATMENT OF EXTERNAL OTITIS; A SIMPLE AND EFFECTIVE TECHNIC

In the past ten years the reports on external otitis have shown a growing realization of the role of Bacillus pyocyaneus (Pseudomonas aeruginosa) as a pathogen. Probably the earliest expression of this was by Morley1in 1938. Since that time, many others have been of the same opinion. Salven and Lewis2investigated 100 consecutive cases of external otitis. B. pyocyaneus was present in 45 per cent of these, whereas in a control group of 25 normal ears none had B. pyocyaneus or fungi. Beach and Hamilton3in a study of 69 cases of external otitis found B. pyocyaneus in 65 of them. Their control group of 50 normal ears did not show this organism. In a paper on fungous disease of the auditory canal Conley4stated that he found B. pyocyaneus in two thirds of the cases and concluded that these organisms, rather than fungi, should

A case of external otitis with false membranes, apparently of diphtherial origin

The LaryngoscopeVolume 43, Issue 6 p. 463-466 Article A case of external otitis with false membranes, apparently of diphtherial origin Dr. Philippe Panneton, Dr. Philippe Panneton Montreal, CanadaSearch for more papers by this author Dr. Philippe Panneton, Dr. Philippe Panneton Montreal, CanadaSearch for more papers by this author First published: June 1933 https://doi.org/10.1288/00005537-193306000-00003AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Volume43, Issue6June 1933Pages 463-466 RelatedInformation

Case of Otitis Externa Due to an Unusual Foreign Body

Case of Otitis Externa Due to an Unusual Foreign Body