Bacterial strain changes during chronic otitis media surgery

2017 ◽  
Vol 131 (9) ◽  
pp. 801-804
Author(s):  
G J Kim ◽  
S Yoo ◽  
S Han ◽  
J Bu ◽  
Y Hong ◽  
...  

AbstractObjective:Cultures obtained from pre-operative middle-ear swabs from patients with chronic otitis media have traditionally been used to guide antibiotic selection. This study investigated changes in the bacterial strains of the middle ear during chronic otitis media surgery.Methods:Pre-operative bacterial cultures of otorrhoea, and peri-operative cultures of the granulation tissue in either the middle ear or mastoid cavity, were obtained. Post-operative cultures were selectively obtained when otorrhoea developed after surgery.Results:Bacterial growth was observed in 45.5 per cent of pre-operative cultures, 13.5 per cent of peri-operative cultures and 4.5 per cent of post-operative cultures. Methicillin-resistant Staphylococcus aureus was identified as the most common bacteria in all pre-operative (32.4 per cent), peri-operative (52.4 per cent) and post-operative (71.4 per cent) tests, and the percentage of Methicillin-resistant S aureus increased from the pre- to the post-operative period.Conclusion:The bacterial culture results for post-operative otorrhoea showed low agreement with those for pre-operative or peri-operative culture, and strain re-identification was required.

2008 ◽  
Vol 139 (2_suppl) ◽  
pp. P150-P150
Author(s):  
Hyong-Ho Cho ◽  
Hyun-Seok Choi ◽  
Chul-Ho Jang ◽  
Yong-Bum Cho

Objectives To determine the effect of long silastic sheet for middle ear aeration in chronic otitis media surgery. Methods Between January 2003 and May 2007, 46 patients underwent planned staged canal wall up tympanomastoidetomy, because possibility of residual cholesteatoma and severe swelling middle ear mucosa, especially around the stapes. Long silastic sheet was inserted from mastoid cavity to middle ear via facial recess during operation procedure. To determine the effect of long silastic sheet for recovery of mastoid aeration, various factors such as computed tomography grading, Valsalva maneuver grading for Eustachian function, and hearing result were compared. Results During the average follow-up of 31 months, there was 1 recurred chronic otitis media which was revealed tuberculosis otitis media. Intact tympanic membrane was obtained in 45(97.8%) of 46 patients. In CT grading, middle ear aeration was increased significantly (p<0.05). Air-Bone gap was significantly decreased after staged operation, preoperative average ABG was 29.7dB and last average ABG was 21.0dB (p <0.05). But Eustachian function using Valsalva manerver was not significantly changed (p >0.05). Conclusions Long silastic sheet insertion from mastoid to middle ear is statistically effective for amelioration of middle ear and mastoid aeration after the first-stage operation.


1976 ◽  
Vol 85 (2_suppl) ◽  
pp. 245-249 ◽  
Author(s):  
Yea Sang Liu ◽  
David J. Lim ◽  
Raymond Lang ◽  
Herbert G. Birck

A total of 175 effusions obtained from 172 patients suffering from chronic otitis media with effusions was examined for bacterial smear and culture. Eighty percent showed positive bacterial smear, but only 49% yielded positive bacterial culture. The mucoid effusions had positive cultures in only 37%, whereas the bacterial culture rate was higher in serous (59%) and leukocytic (64%) types. The isolation of common pathogens accounted for about 50% of the isolates, and nonpathogens accounted for the remaining 50%. The high incidence of microorganisms in the middle ear effusions in the present series raises the possibility of bacterial contribution in many cases of OME.


2021 ◽  
Vol 5 (7) ◽  
pp. 647-656
Author(s):  
Ahmad Hifni ◽  
Rian Hasni ◽  
Fiona Widyasari ◽  
Abla Ghanie ◽  
Erial Bahar

Introduction: Chronic suppurative otitis media (CSOM) is a chronic inflammation of the middle ear and mastoid cavity. It is necessary to identify bacterial patterns and antibiotics susceptibility in CSOM. Appropriate administration of antibiotics is essential to treat infection and prevent widespread resistance. Objective: The aim of this study is to compare the pattern of germs and antibiotic susceptibility between CSOM with cholesteatoma and without cholesteatoma. Methods: Observational study with cross-sectional design. Data collection was carried out using medical record data on 102 subjects who underwent middle ear swab and bacterial culture from January to December 2019. Results: From 102 subjects and 122 bacterial culture results. it was found that Pseudomonas aeruginosa (36.1%) was one of the most common organisms to cause CSOM. followed by Staphylococcus haemolyticus. Staphylococcus epidermidis and Staphylococcus aureus. There was a significant difference between the germ pattern and the type of CSOM (p = 0.002). Amikacin. meropenem. gentamicin. cefepime. ciprofloxacin and ceftazidime were found to be the most effective antibiotics for Pseudomonas aeruginosa. The rate of resistance to tigecycline and cefazoline were highest. Age. sex. nutritional status and comorbidities were not factors that significantly influenced the incidence of cholesteatoma in CSOM. Conclusion: There is a significant difference between the germ pattern in both CSOM groups. Patients that show Gram negative have a significant effect on the incidence of CSOM with cholesteatoma.


2021 ◽  
Vol 5 (3) ◽  
pp. 675-684
Author(s):  
Ahmad Hifni ◽  
Rian Hasni ◽  
Fiona Widyasari ◽  
Abla Ghanie ◽  
Erial Bahar

Introduction: Chronic suppurative otitis media (CSOM) is a chronic inflammation of the middle ear and mastoid cavity. It is necessary to identify bacterial patterns and antibiotics susceptibility in CSOM. Appropriate administration of antibiotics is essential to treat infection and prevent widespread resistance. Objective: The aim of this study is to compare the pattern of germs and antibiotic susceptibility between CSOM with cholesteatoma and without cholesteatoma. Methods: Observational study with cross-sectional design. Data collection was carried out using medical record data on 102 subjects who underwent middle ear swab and bacterial culture from January to December 2019. Results: From 102 subjects and 122 bacterial culture results. it was found that Pseudomonas aeruginosa (36.1%) was one of the most common organisms to cause CSOM. followed by Staphylococcus haemolyticus. Staphylococcus epidermidis and Staphylococcus aureus. There was a significant difference between the germ pattern and the type of CSOM (p = 0.002). Amikacin. meropenem. gentamicin. cefepime. ciprofloxacin and ceftazidime were found to be the most effective antibiotics for Pseudomonas aeruginosa. The rate of resistance to tigecycline and cefazoline were highest. Age. sex. nutritional status and comorbidities were not factors that significantly influenced the incidence of cholesteatoma in CSOM. Conclusion: There is a significant difference between the germ pattern in both CSOM groups. Patients that show Gram negative have a significant effect on the incidence of CSOM with cholesteatoma.


2003 ◽  
Vol 41 (142) ◽  
pp. 314-317
Author(s):  
Anil Kumar Jha ◽  
J B Singh ◽  
S P Raut

A total of 100 patient with otitis media effusion obtained from patients suffering fromchronic otitis media with effusions was examined for bacterial smear and culture. Inmucoid effusion 82% showed positive bacterial smear, only 35% yielded positivebacterial culture. Bacterial cultures rate was higher in serous (50%) effusion. Theisolation of common pathogens accounted for the remaining 42%. The high incidenceof microorganisms in the middle ear effusions in the present study indicates bacterialcontribution in many cases of otitis media effusion. Concerning the sterile nature ofthe middle ear fluid some investigators suggested that the effusions are transudatesand are created by a negative pressure in the tympanum due to a malfunctioningEustachian tube.2It was suggested that failure to isolate organisms may be partly dueto the antimicrobial characteristics of effusions. The purpose of this study is to showpossible role of bacteria in Middle Ear Effusions.Key Words: Otitis Media, Effusion, Microorganisms.


Author(s):  
Santosh U. P. ◽  
Sanjay V. C.

<p class="abstract"><strong>Background:</strong> Chronic otitis media is defined as persistent disease of middle ear. Fungi can either be the primary pathogen or be superimposed on bacterial infections or can be secondary pathogen in previously perforated tympanic membrane. Keeping view of high prevalence of fungal infection of middle ear in hot, humid and dusty areas, retrospective study was done to detect the potassium hydroxide (KOH) mount positive in ear discharge of chronic otitis media and treat these patients.</p><p class="abstract"><strong>Methods:</strong> This was a retrospective study based on Bapuji Hospital records between 1 January 2018 to 26 July 2019 attached to the teaching college JJM Medical College, Davangere. Patients of either sex between age group 18 months to 87 years who diagnosed with chronic otitis media and given ear discharge sample for bacterial culture and KOH mount which is taken by a single surgeon. Collected bacterial culture reports and KOH mount reports and calculated all positive reports of KOH mount reports and treated accordingly and all reports were analysed statistically.  </p><p class="abstract"><strong>Results:</strong> We found that 15.8% KOH rate positive with 9.8-21.8% probable range for KOH positivity 95% CI which will impact in modification of treatment in chronic otitis media and were effectively treated with antibiotic and antifungal ear drops and 8 patients were required oral antibiotics as well.</p><p class="abstract"><strong>Conclusions:</strong> We conclude that in patients with COM, send ear discharge for both culture and sensitivity and KOH mount and it should be routine and always consider combined therapy i.e., antibiotic and antifungal drugs.</p>


Author(s):  
Elif Gündoğdu ◽  
Uğur Toprak

Background: The middle ear cavity is ventilated through the aditus ad antrum. Aditus blockage contributes to the pathology of otitis media. Objective: To determine the normal values of the aditus ad antrum diameter on computed tomography and to investigate its relationship with chronic otitis media and related pathologies (tympanosclerosis and myringosclerosis). Methods: The temporal CT images of 162 individuals were evaluated retrospectively. In the axial sections, the inner diameter of the aditus was measured at the narrowest point at the cortex. The differences in diameter were compared between diseased and healthy ears. Results: In healthy individuals, the diameter was narrower in women. There was no difference between the right and left ears in healthy subjects. No correlation was found between age and diameter. In male patients with myringosclerosis, the diameter was slightly narrower on both sides but more marked on the left. In female patients with myringosclerosis, the diameter in both ears was slightly narrower. In cases of otitis media and tympanosclerosis, the diameter was less than that of healthy individuals, despite the lack of statistically significant result in all cases. Conclusion: The aditus ad antrum was narrower in diseased ears, indicating that a blocked aditus may contribute to the development of otitis media, as well as mucosal diseases.


1992 ◽  
Vol 85 (1) ◽  
pp. 131-135
Author(s):  
Nozomu Mori ◽  
Akio Shugyo ◽  
Hiroshi Furuta ◽  
Yasuki Watanabe ◽  
Takafumi Kawahara ◽  
...  

1995 ◽  
Vol 76 (1) ◽  
pp. 23-25
Author(s):  
R. M. Nursaitova ◽  
O. A. Guryanov

It is advisable to perform cautious radical operations at the same time with plasty elements. The early surgicai sanation of the middle ear is recommended allowing to preserve its elements, to increase the possibilities of reconstruction and consequently, to decrease a potential danger for acoustic function of a patient as well as for his life as a whole.


2016 ◽  
Vol 130 (S3) ◽  
pp. S221-S221
Author(s):  
Ayiheng Qukuerhan ◽  
Nilipaer Alimu ◽  
Halimulati Muertiza ◽  
Pilidong Kuyaxi

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