Pro-inflammatory interleukins in middle ear effusions from atopic and non-atopic children with chronic otitis media with effusion.

Chronic otitis media with effusion (OME) is associated with irreversible changes in the middle ear, sometimes leading to hearing loss and abnormal language development in children. While the pathogenesis of OME is not fully understood, inflammatory and allergic factors are thought to be involved. The study aimed to investigate the role of cytokines in the local development of chronic OME, and assess differences in the cytokine profiles between atopic and non-atopic children. 84 atopic and non-atopic children with chronic OME (mean age of 6 years 7 months) were studied. Age-matched children with hypertrophy of the adenoids and Eustachian tube dysfunction served as the control group. The number of past acute otitis media (AOM) episodes, their age, and the type of effusion were recorded for all children. Pro-inflammatory cytokine concentrations (TNF-α, IL-1ß, IL-6 and IL-8) were determined and the presence of pathogenic bacteria in the patients' effusions was examined. High concentrations of TNF-α, IL-1ß, IL-6 and IL-8 were found in the effusions in all children with chronic OME, with the highest levels observed in the non-atopic group. The atopic group showed persistently high IL-1ß levels, while in the non-atopic children, IL-1ß and TNF-α levels positively correlated with the patient's age and the number of past AOM episodes. Pathogenic bacteria were more frequently isolated from effusions in non-atopic children. In both atopic and non-atopic children, pro-inflammatory cytokines are found at high concentrations. This argues in favor of instituting anti-inflammatory management for treating OME, regardless of atopy.

Carriage of antibiotic-resistant Haemophilus influenzae strains in children undergoing adenotonsillectomy.

Haemophilus influenzae is one of the major pathogenic bacteria in upper respiratory tract of children. In this study, the presence of various H. influenzae genotypes were followed-up for at least 13 weeks, starting from one week before surgery. Forty-one children with chronic adenoid hypertrophy were prospectively enrolled to the study. The consecutive swabs of adenoid and tonsils, two before adenotonsillectomy and two after the surgery together with homogenates of adenotonsillar tissues and lysates of the CD14(+) cells fraction were acquired from 34 children undergoing adenotonsillectomy. Up to ten isolates from each patient at each collection period were genotyped using a PFGE method and their capsular type and antibiotic susceptibility was determined. Of the 1001 isolates examined, we identified 325 isolates grouped into 16 persistent genotypes, which colonized throats for more than seven weeks and were not eliminated by the surgery. The other 506 isolates grouped into 48 transient genotypes that had been eliminated by the surgery. The resistance to ampicillin were found in 23.8% of the transient strains, and 4.7% of the newly acquired strains following the surgical intervention. In contrast, none of the persistent strains were resistant to ampicillin; however, these strains showed apparently higher level of resistance to co-trimoxazole when compared to transient strains. The transient and persistent strains did not significantly differ in bacterial viability in the biofilms formed in vitro. Some of the strains were identified in two or three different patients and were considered as the strains circulating in the region between 2010 and 2012.

[Emergence pathogens infections in ENT Department of Children's hospital in 2005-2008]. / Zakazenia patogenami alarmowymi na Oddziale Otolaryngologicznym Szpitala Dzieciecego im. prof. dr. med. Jana Bogdanowicza w latach 2005-2008.

INTRODUCTION: The development of medicine, in this the new techniques and antibiotic therapy enlarged the survivability of patients in hospital. Applying antibiotics caused breakthrough in treatment stepping out in ill's group infections treated in hospital, however enlarging resistance is natural this effect, resulting from: the selection of resistant strains, the formation of new mechanisms of resistance, and/or the spreading of gene of resistance. Multidrug-resistant strains were included to emergence-pathogens group: MRSA, penicillin-resistant Streptococcus pneumoniae, VRE, Gram-negative producing beta-lactamase of type the ESBL and/or resistant to carbapenems. Emergence-pathogens occurrence leads to: therapeutic failures, the use extorts in therapy of dear medicines or with possibility of workings undesirable. The multidrug-resistant strains spread in hospital environment easily, especially on departments about high waste of medicines with the patients' simultaneously large susceptibility on infection, resulting mainly with state of reduced resistance of organism. The control of hospital infections recognize by present hospitality for the most important criterion of quality of work. AIM: Analysis of the emergence-pathogens isolated during treatment in hospital in 2005-2008, from special regard the ENT Department. MATERIAL AND METHODS: 50586 children treated in this period in hospital in which was executed 39386 bacteriological investigations, in this 6528 (12.9%) children in ENT Department in which was executed 1566 bacteriological investigations (3.98%). The diagnostics were executed according to routine microbiological procedures with qualification of resistance to antibiotics. RESULTS: Emergence-pathogens infection was confirmed at 2369 children's (4.68%) treated in Hospital, in this in ENT Department at 84 children (1.29%). The most frequent emergence-pathogens in ENT Department were Streptococcus pyogenes, Streptococcus pneumoniae penicillin-resistant and average sensitive on penicillin, Staphylococcus aureus methicillin-resistant and Rotavirus. CONCLUSIONS: Streptococcus pneumoniae penicillin-resistant and average sensitive to penicillin and Rotavirus infections are the most frequent hospital infections. The systematic microbiological supervision is indispensable in prevention the spreading of infections of the emergence-pathogens in hospital.

Impact of adenoid hypertrophy on the open bite in children.

Nasal obstruction caused by adenoid hypertrophy can lead to malocclusion. The research material consisted of children aged 7-12 years with adenoid hypertrophy qualified for adenoidectomy. On the basis of the conducted tests (laryngological, orthodontic, pediatric), the occurrence of open frontal bite in children with pharyngeal tonsil hypertrophy, in particular in boys, was confirmed in comparison to children without hypertrophy correctly breathing through the nose.

Acute subglottic laryngitis. Etiology, epidemiology, pathogenesis and clinical picture.

In about 3% of children, viral infections of the airways that develop in early childhood lead to narrowing of the laryngeal lumen in the subglottic region resulting in symptoms such as hoarseness, abarking cough, stridor, and dyspnea. These infections may eventually cause respiratory failure. The disease is often called acute subglottic laryngitis (ASL). Terms such as pseudocroup, croup syndrome, acute obstructive laryngitis and spasmodic croup are used interchangeably when referencing this disease. Although the differential diagnosis should include other rare diseases such as epiglottitis, diphtheria, fibrinous laryngitis and bacterial tracheobronchitis, the diagnosis of ASL should always be made on the basis of clinical criteria.

[Upper respiratory tract infections in children caused by atypical bacteria]. / Zakazenia górnych dróg oddechowych u dzieci wywolane przez bakterie atypowe.

UNLABELLED: It encounters despite solid progress in development of diagnostic methods diagnostics the diseases of upper respiratory tract and ears in children called out by atypical bacteria's on the ground clinical symptoms and their treatment is difficulty still. AIM: The performance of accessible review of current literature was on the aim of work opinion of the atypical bacteria's part in evocation the infections the upper respiratory tract and ears in children, and performance of characteristic symptoms of clinical diseases these organs the bacteria's also. CONCLUSIONS: The quoted in work results of investigations do not it let on the unambiguous opinion the atypical bacteria part in contagions of infections the upper respiratory tract and ears in children. It seems however, that Mycoplasma pneumoniae answers first of all for evocation the acute infections of upper respiratory tract; however Chlamydophila pneumoniae plays the larger part in illnesses chronic as well as co-existent pathogen in illnesses sharp. Atypical bacteria can cause upper respiratory tract infections significantly more often than previously thought. These infections often occur in patients with history of respiratory recurrences.

[Atypical bacteria in respiratory tract infections --pathogenesis and diagnosis]. / Bakterie atypowe w zakazeniach dróg oddechowych--patogeneza i diagnostyka.

Atypical bacteria, including Mycoplasma pneumoniae, Chlamydophila pneumonia and Legionella pneumophila play significant role in respiratory tract infections and account for 40% of all cases of community acquired pneumonia (CAP). These organisms also commonly occur as co-pathogens in mixed infections with mortality rates as high as 25%. The biological mechanisms and diagnosis of atypical infections is presented in this study.

[Treatment of the nasal septal hematoma and abscess in children]. / Leczenie pourazowych krwiaków i ropni przegrody nosa u dzieci.

OBJECTIVES: Estimation of the treatment of the nasal septal hematoma and abscess after injury was performed. MATERIAL AND METHODS: In 1998-2005 in Department of Otolaryngology Children's Hospital in Warsaw 2500 children after nasal injury were examined. Nasal septal hematoma and abscess were diagnosed in 22 (0,9%). They were reviewed retrospectively and some of them were examined 1-8 years after. RESULTS: In 22 children with nasal septal hematoma and abscess no complication were observed during treatment. In 12 children examined 1-8 year after treatment 1 child developed saddle nose deformity (qualified to observation) and 1 child developed nasal septum deformities with nasal obstruction (qualified to septoplasty). CONCLUSIONS: Complex treatment of nasal septal hematoma, drainage of the hematoma with septoplasty and reduction of fracture of the nose, makes good functional and cosmetic effect. Drainage of the nasal septal abscess with antibiotic prevent the early complications but it isn't enough functional and cosmetic effect in the future.

Bacterial lysates in the prevention of respiratory tract infections.

Bacterial lysates stimulate the general immunity of the body in a non-specific way. They act on non-specific defense mechanisms, leading to an increase in type A antibody in mucous membranes, phagocytic activity and INF-Æ´ production. They can also stimulate the production of specific antibodies against the bacterial antigens that make up the preparation. The oral immunomodulatory preparations with the best documented clinical efficacy available on the Polish market are Ismigen, Broncho-Vaxom, Ribomunyl and Luivac. They are all lysates of bacterial strains that most often cause respiratory tract infections. In many clinical trials, oral bacterial lysates have been shown to minimize the risk of recurrent respiratory infections in children and adults and reduce the need for antibiotics.

Treatment strategy of allergic rhinitis in the face of modern world threats.

Allergic rhinitis (AR) is the most common form of allergy, which - as epidemiological research has shown - applies to nearly 25% of the population. AR significantly affects the quality of life of the patient, and the more severe the disease, the greater the risk of developing bronchial asthma. One of the factors affecting the severity of symptoms and the degree of their control is air pollution. In some patients, despite proper treatment, persistence or only partial remission of symptoms (uncontrolled allergic rhinitis) is observed. This can lead to an increase in comorbidities - inflammation of the paranasal sinuses, otitis media and asthma - both in children and in adults. The treatment of allergic rhinitis, in accordance with the standards, consists in: education of the patient, elimination of the allergen from the environment and factors intensifying the course of the disease, selection of proper pharmacotherapy and specific allergen immunotherapy. Many factors influence the selection of the antihistamine used, e.g., the opportunity of safe increase of the dosage.

[Complications of acute sinusitis in children treated in own material]. / Powiklania ostrego zapalenia zatok przynosowych u dzieci w materiale wlasnym.

We describe children with orbital complications of acute sinusitis and analyse symptoms, diagnostic procedure and treatment options. We used X-ray and/or CT of paranasal sinuses to make diagnosis. The most frequent presenting orbital and occular symptoms are preseptal cellulitis and orbital cellulitis. Management of these children included intravenous antibiotic and we made maxillary sinus puncture with drainage. Proper recognition and treatment lead to total recovery.

[Evaluation of antibiotic resistance in material isolated from the middle ear in children with acute otitis media not responding to standard antibiotic treatment]. / Przyczyny niepowodzenia w leczeniu dlugo trwajacego ostrego zapalenia ucha srodkowego u dzieci.

INTRODUCTION: An increasing antibiotic resistance of pathogens is the main cause of failures during treatment of acute otitis media (AOM). Aim. A qualitative and quantitative bacteriological analysis of material isolated from the middle ear in children with AOM treated with antibiotic without improvement. MATERIAL AND METHODS: This is a prospective study performed in Department of Otolaryngology in Warsaw between 2005 and 2007. An examined group consisted of 72 children aged from 6 months to 17 years, admitted to Department of Otolaryngology because of failure of antibiotic therapy of AOM, severe course of this disease and complications of AOM or persistent AOM. In all children were performed the myryngotomy and/or ventilatory tube insertion and/or mastoidectomy and the material from the middle ear was collected to bacteriological examinations. RESULTS: The positive cultures were obtained in 63.9% patients. Streptococcus pneumoniae (40.4%), Staphylococcus aureus (14%), Haemophilus influenzae (10.5%) and Pseudomonas aeruginosa (10.5%) were the most frequently found bacteria in the culture of middle ear. beta-lactamase producing bacteria were isolated in 12 children (21.1% of isolated bacteria). Staphylococcus aureus (7 children, 12.3% of positive cultures) was the bacteria most frequent producing beta-lactamase. The most of organisms were susceptibility to amoxicillin/clavulanate--56.1% of bacteria from the middle ear. The most of organisms presented resistance to penicillin--63.9% of bacteria from the middle ear. CONCLUSIONS: Microbiological identifications and antibiotic resistance determination of pathogens isolated from the middle ear in children with AOM not responding to empirical antibiotic treatment gives possibility of the choice of an effective antibiotic and its proper dosage. The pathogenic bacterial flora isolated from the middle ear in children with AOM shows evidence to accomplishing changes in the most frequent pathogens causing acute otitis media in children.

[The existence vomeronasal organ in adult humans]. / Wystepowanie narzadu lemieszowo-nosowego u ludzi doroslych.

The influence of chemical substances (feromones) on human emotional and physical condition has fascinated psychologists, sexuologists and laryngologists since centurie. Literature conveys inconsistent information on vomeronasal organ (VNO) occurrence in humans. This organ is often called Jacobson's, and 2 symmetrical openings leading into it, located on both sides of septum, are called Ruyasch's ducts. The aim of the study was to analyze vomeronasal organ occurrence in humans in relation to age and sex. The study was conducted in a group of 634 patients, aged 18-80 years. All patients underwent routine ENT examination including rhinoscopy, nasal cavity examination with usage of 2.5x magnification lens (surgical glasses) and surgical microscope with 10x magnification. All persons had nasal cavities examined endoscopically. Every time presence of vomeronasal organ openings, along with localization, size and symmetry of these was noted. Subjects, who presented Jacobson's organ, were asked to fill a questionnaire concerning influence of smells on erotic sensations. Vomeronasal organ was fund in 312 persons, that is 49.21%. In 83.65% of cases vomeronasal organ opening size was smaller than 0.2 mm, what restricted its visibility to usage of magnifying lens, microscope, or endoscope. In 16.34% of cases only vomeronasal organ ducts openings were well visible in routine rhinoscopy without magnification. Vomeronasal organ was found more often in men than women. VNO was significantly more rare in patients with nasal septal deviation. In these cases, vomeronasal organ was usually found unilaterally, in all the cases on the concave side of deviated nasal septum.

The nasal septum deformities in children and adolescents from Warsaw, Poland.

OBJECTIVE: The final shape of the nasal septum deformities is a result of irregular development of the nasomaxillary complex or of a nasal injury. Nasal septum deformities reveal in childhood. The aim of this study is to estimate the prevalence of the particular types of the septum deformities in children according to Mladina's classification, analysis of the correlation between types of deformities and age and sex and checking if nasal injury influences the occurrences of nasal septum deformities and determines the particular type of it. METHODS: The nasal septum morphology was examined in 288 children aged 3-17. The investigation was performed in kindergartens and schools in Warsaw. The study population was divided into three groups. Anterior rhinoscopy without nasal vasocontrictive drugs was performed. A questionnaire was included. The nasal septum deformities were qualified according to Mladina's classification. Analysis of variance (ANOVA) and Wilcoxon's test were used to performed statistical significance. RESULTS: Deviation of the nasal septum was diagnosed in nearly 34% of the sample population. The nasal septum deformities occurred in 29% of girls and in nearly 37% of boys. The prevalence of septum deformities in group 1 aged 3-7 years was 35.23%, in group 2 aged 8-13 years was 27.97% and in group 3 aged 14-17 years was 40.24%. We observed statistically significant correlation between age of patients and type of nasal septum deformities (F=3.65, p=0.000876). In children with nasal injures, 66.66% had nasal septum deformities while in group without injuries there was about 31.69%. We observed statistically significant correlation between type of nasal septum deformities and nasal injuries (Z=7.67, p<0.0000001). CONCLUSIONS: The percentage of the nasal septum deformities change with age. Deviation of the nasal septum was more prevalent in boys. The risk of occurrence of the nasal septum deformities increases after nasal injury. Type 1 and type 5 according to Mladina's classification dominates in study population. Type 1 decreases with age, while type 5 increases with age.

[Results of treatment with tympanostomy tubes in children with otitis media with effusion]. / Odlegle wyniki leczenia drenazem wentylacyjnym przewleklego wysiekowego zapalenia ucha srodkowego u dzieci.

INTRODUCTION: Otitis media with effusion is a common problem in childhood. The tympanostomy tubes is a standard treatment of persistent otitis media with effusion in children which improves hearing level. However some pathological changes of the tympanic membrane and middle ear few years after treatment are observed. The aim of the study was prevalence of middle ear sequelaes in children with persistent otitis media with effusion treated by tympanostomy tubes 4-10 years after treatment. MATERIAL AND METHODS: The group of 61 patients aged between 1-13 with otitis media with effusion treated by tympanostomy tubes in Department of Otolaryngology Childrenís Hospital in Warsaw between 1994-2001 were controlled. 113 ears treated with tympanostomy tubes were examined 4-10 years after treatment. At the examination otomicroscope, pure-tone audiometry and tympanometry were used. RESULTS: Out of the 113 ears after ventilation tubes insertion as a method of otitis media with effusion treatment in 83 (73%) developed one or more middle ear sequelaes. Myringosclerosis in 47 ears (41,59%), segmental atrophy in 19 ears (16,81%), atrophy in 14 ears (12,38%), disfunction of Eustachian tube in 8 ears (7,07%), otitis media with effusion in 7 ears (6,19%), perforation of tympanic membrane in 6 ears (5,3%), chronic otitis media in 2 ears (1,76%), retraction pocket in 2 ears (1,76%) and tympanostomy tube in the middle ear cavity in 1 ear (0,88%) were found. No cases of cholesteatoma were found. In 22 ears (19,46%) the conductive hearing loss was greater than 20 dB. In 4 ears (3,5%) mixed hearing loss and in 3 ears (2,6%) receptable hearing loss was diagnosed. Tympanogram type A was in 86 ears (76,1%), tympanogram type B was in 11 ears (9,7%) and tympanogram type C was in 12 ears (12,6%). CONCLUSIONS: In children with otitis media with effusion treated with tympanostomy tubes the amount of sequelaes increased with time. In children with otitis media with effusion who started treatment with tympanostomy tubes in age to 4 years old the amount of sequelaes is less. The follow-up is recommended up to 8 years after the treatment.

Evaluation of the Interleukin-1 Receptor Antagonist and Immunoregulatory Interleukin-10 in the Middle Ear in Chronic Otitis Media With Effusion in Children With and Without Atopy.

OBJECTIVES: The role of pro-inflammatory cytokines in the course of chronic otitis media with effusion (COME) has been documented. However, there are fewer studies on the action of anti-inflammatory cytokines in the middle ear. We sought determine whether there is an association between COME and anti-inflammatory cytokines and whether there are any differences in the cytokine profile in COME children with and without atopy. METHODS: Eighty-four children were divided into 3 groups: 32 nonatopic children with COME (group NA), 31 atopic children with COME (group A), and 21 children without COME and without atopy (control group C). Specimens from the middle ear were collected and evaluated by enzyme-linked immunosorbent assay for the cytokines interleukin-1 receptor antagonist (IL-1Ra) and immunoregulatory IL-10. RESULTS: Significantly higher IL-10 concentrations were found in both nonatopic and atopic children with COME compared to controls. No significant differences in IL-1Ra levels were found between atopic and nonatopic children with COME and the control group. CONCLUSION: We found no differences in the levels of IL-1Ra in atopic and nonatopic children with COME compared to controls. However, we found elevated IL-10 levels in the middle ear effusions from children with COME, with or without atopy. These elevated immunoregulatory cytokine levels suggest a role for new immunomodulatory treatments to prevent disease progression in COME, regardless of atopy.

Role of Chlamydia pneumoniae in the pathogenesis of hypertrophy and adenoid tissue inflammation in children.

OBJECTIVE: A tropism to epithelial cells and lymphocytes, an inhibition of apoptosis in host cells, an ability to occurrence in persistent form resistant to antibiotic treatment are the features of Chlamydia pneumoniae, which can have connection with chronic inflammation of an adenoid tissue and adenoid hypertrophy. This study aimed to (1) detect the C. pneumoniae in an adenoid in children undergoing adenoidectomy, (2) estimate a connection between C. pneumoniae occurrence and the size of adenoid, (3) demonstration in which of adenoid cells C. pneumoniae occurs most often. MATERIAL AND METHODS: The examined group consisted of 200 children aged from 2 to 16 years (mean age 6,4) undergoing adenoidectomy. In all children during qualification for adenoidectomy a fiberoscopic examination of the nasopharynx was performed. A part of removed adenoid tissue was analysed by real-time PCR for C. pneumoniae. Adenoids from children with positive PCR examination and from 10 children with negative PCR examination were examined using immunohistochemistry (IHC). RESULTS: C. pneumoniae in the adenoid was present in 5,5% children. Positive results were obtained most frequently (24,14%, 7/29) in the eldest group (10-16 years). A statistical analysis demonstrated the correlation between C. pneumoniae occurrence in an adenoid tissue and the size of adenoid. In immunohistochemistry C. pneumoniae was found the most frequently in lymphocytes and in epithelial cells. CONCLUSIONS: A presence of C. pneumoniae in lymphocytes and epithelial cells of the adenoid first of all in older children with adenoid hypertrophy confirms the participation of this bacteria in adenoid pathology.

Nasal provocative test in patients allergic to pollen.

Nasal provocative test (NPT) can be defined as a method for recreating upper respiratory tract response to natural allergens or irritants. It can be used in solving nasal patophisiology problems: establishing whether and how the patient's nose is sensitive to antigens or irritants; quantitative evaluation of sensitivity; establishing factors influencing sensitivity. This method is employed to confirm clinical diagnosis in cases where difficulties arise in interpretation of diagnostic tests. The study based on nasal provocative tests establish an allergy to pollen in cases of pollinosis, and select appropriate components for the desensitising vaccine. Sample group included 53 patients, 29 were females and 24 were males, aged 15-42 years, selected from 1,021 patients diagnosed between 1999-2002 in the Allergology Department of the ENT Department of the MMI. The sample patients were diagnosed based on additional tests with allergic inflammation of the nasal mucosa caused by allergy to pollen of such plants as birch, grass, rye, mugwort and plantain. Research methods included: subjective physical examination, prick tests, total and specific IgE levels in serum, nasal provocative tests and rhinomanometric examination. Allergen solution was administered onto the mucosa with a calibrated atomiser. NPT solutions containing pollen of birch, grass, rye, mugwort and plantain were used. Provocative test was considered positive if, following allergen provocation, rhinomanometric examination revealed an increase in respiratory resistance by at least 40 % in comparison with the control test. On the basis of the study, 2 conclusions were drawn: 1) Nasal provocative test is an essential element in diagnostics of allergic nasal obstruction. 2) Rhinomanometry, as an objective method of examining nasal patency, is crucial for evaluating the nasal provocative test.

[The role of the bacterial inflammation in subglottic laryngitis in children]. / Rola zakazenia bakteryjnego w podgltosniowym zapaleniu krtani u dzieci.

The aim of this study is to assess the impact of some selected bacteriological factors on the occurrence of subglottic laryngitis in children. The research covered 72 children hospitalized in the Children's Hospital in Warsaw with the following symptoms: dry barking cough, stridor, inspiratory dyspnoea with the participation of auxiliary respiratory muscles, agitation and change of colour of skin. Subglottic laryngitis is one of the acute children's diseases, directly caused by a violently growing odema of the subglottic area. The disease constitutes 5-8% of all severe airways inflammations and states that subglottic laryngitis is responsible for 6.5% off all lower airways inflammation cases. Based on preliminary examinations, the patients were divided into two groups--one of them composed of 41 patients with simultaneous atopy, the other--of 31 patients with no atopy symptoms. The examination of each patient included subjective, objective (pediatric and laryngological) and auxiliary (primary-blood cell count, OB and specialized-bacteriological tests) examinations. Own research showed that out of 72 patients with subglottic laryngitis 56.95% had bacterial symptoms. 90.32% in non atopic group have higher NBT test, in atopic children it was 39.02%. We observed that 50.51% of the patients suffering from subglottic laryngitis had an inflammation of upper airways (otitis media, rhinitis, pharyngitis) and 13.89% of lower respiratory tract (bronchitis, pneumonitis). Many authors incline to say that bacteria may be a conductive factor for subglottic laryngitis to develop. However, many factors seem to suggest that the occurrence and symptoms of subglottic laryngitis are primarily caused by the reaction to an infection. The impact of bacteria onto the etiopathogenesis of subglottic laryngitis has been discussed for many years. Some experts are of the opinion that the disease develops on the bacteriologic background.

[Bacterial flora in children with recurrent acute otitis media]. / Flora bakteryjna w nawracajacym ostrym zapaleniu ucha srodkowego u dzieci.

The aim of the study was to identify microorganisms and antimicrobial susceptibilities of pathogens from middle ear in children with recurrent acute otitis media and acute otitis media. The study comprised 83 children--42 with recurrent acute otitis media and 41 with acute otitis emdia classified for paracentesis. Agar, chocolate, blood and Chapman plates were inoculated for isolation of bacteria. The plates were incubated at 37 degrees C and examined at 24 hours. The susceptibility of bacteria was determined by disk diffusion technique containing concentration gradients for following antibiotics: penicillin, amoxicillin/clavulanate, ampicillin/sulbactam, cefaclor, cefprozil, cefuroxime, erythromycin, azithromycin, clinadamycin and trimethoprim/sulfamethoxazole. 217 organisms from middle ear in children with recurrent acute otitis media and 131 organisms from middle ear in children with acute otitis media were isolated. Most frequent cultured bacteria were: Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis--71.4% in recurrent acute otitis media and 47.3% in acute otitis media. We observed statistically significant (p < 0.05) increased of Moraxella catarrhalis in specimens from the middle ear in children with recurrent acute otitis media older than 2 years. The best susceptibility was observed to amoxicillin/clavulanate (79.7% of bacteria in children with recurrent acute otitis media and 83.2% of bacteria in children with acute otitis media). The most of organisms presented resistance to trimethoprim/sulfamethoxazole--65.9% of bacteria in children with recurrent acute otitis media and 62.6% of bacteria in children with acute otitis media. Our investigation showed that resistance to bacteria increase in children with recurrent acute otitis media, most frequent appear in children older than 2 years and depend on number of episodes of acute otitis media and day care.