Purpose : Streptococcus pneumoniae serotype 6B and 6A are important pathogens in pneumococcal infections. It is commonly assumed that the 6B vaccines elicit antibodies cross-reacting with the 6A serotype and the cross-reactive antibodies protect against infections of 6A. To examine this assumption, we measured the opsonophagocytic capacity to serotype 6A and 6B in adults. Methods : Twenty-four adults were immunized... |
Purpose : This study was designed to estimate the prevalence of Mycoplasma pneumoniae infection during an epidemic period by means of examining the antibody conversion rate and to investigate the association of the antibody conversion with age, initial antibody titer, and atopy. Methods : We chose 191 children whose antibody titer to M. pneumoniae was negative, 1 : 40, or... |
Kawasaki disease is an acute febrile vasculitis that occurs predominantly in young children under 5- years-old. The patients present generally with a high spiking fever that is unresponsive to antibiotics and lasts for more than five days at least. Prolonged fever has been shown to be a risk factor in the development of coronary artery disease. It seems to be... |
Purpose : Mycoplasama pneumoniae is a leading cause of pneumonia and exacerbates other respiratory conditions such as asthma. Surfactant protein A(SP-A) is involved in surfactant physiology and surfactant structure, and plays a major role in innate host defense and inflammatory processes in the lung. In this study, SP-A mediated mycoplasma cidal activity. The candidate-gene approach was used to study the... |
Interstitial lung disease refers to a group of pulmonary disorders characterized by inflammation of the interstitium, derangements and loss of alveolar capillary units leading to disruption of alveolar gas exchange, which induces symptoms of restrictive lung disease. Cases of interstitial pneumonia in children are uncommon and mostly have unknown causes. We have experienced an 8-year old boy who had symptoms... |
Purpose : We evaluated the epidemiologic and clinical characteristics of mycoplasma pneumonia. Methods : A total of 559 medical records of children with mycoplasma pneumonia admitted to The Catholic University of Korea, Daejeon St. Mary's Hospital, were retrospectively analyzed. Results : The mean annual number of cases was 51. There was a higher occurrence in autumn (September-November, 41.7%) and in winter(26.7%). Outbreaks... |
Purpose : S. pneumoniae is one of major pathogens of community-acquired respiratory infections. The rate of antibiotic resistance to this organism has increased, and resistance to multiple antimicrobial agents in a single strain of S. pneumoniae may compromise the efficacy of empiric antimicrobial treatment commonly used for respiratory infections. We did this study to find out the penicillin resistant distributions... |
The most common pathogen of respiratory tract infection among school-age children and adolescents is Mycoplasma pneumoniae, which causes clinical manifestations of pneumonia, acute asthmatic attack, pharygitis, and tonsilitis. It can also cause extrapulmonary infections that involves skin, the nervous system, the digestive system, the cardiovascular system, and the hematopoietic system. It is reported that the central nervous system symptoms may... |
Purpose : Streptococcus pneumoniae is an important pathogen in children as well as in elderly people. The aim of this study was to assess the opsonization activity of pneumococal capsular antibody to seven serotypes in 23-valent pneumococcal polysaccharide vaccine before and after immunization in Korean children. Methods : Nine children from 24 to 49 months of age were immunized with 23-valent... |
Purpose : Pneumonia is one of the most common respiratory diseases in hospitalized children, and often recurs. It has been reported that asthma is one of the significant contributing factors to recurrent pneumonia. On the basis of similarities between asthma and recurrent pneumonia, we intended to evaluate the influence of allergy on recurrent pneumonia. Methods : Seventy one children with... |
Purpose : The aim of this study was to determine the prevalence of pneumococcal nasal carriage and confirm the distribution of pneumococcal capsular serotypes in Korean children below aged 5 years old. Another reason this study was performed was to identify the theoretical coverage by seven valent conjugate pneumococcal vaccine, and confirm the penicillin resistant rate. Methods : This study included... |
In Kawasaki disease, arthritis may occur, generally affecting the hands, knees, ankles, or hips. Operations have not usually been needed. We report a case of Kawasaki Disease with multiple septic arthritis which was caused by S. pneumoniae and which needed athrotomy with drainage for both hips, both knees, and both ankle joints. A two year, ten-month-old girl was admitted to... |
Purpose : The extended-spectrum β-lactamase(ESBL) producing organism have emerged to be an important pathogen in neonatal intensive care unit(NICU). This study was conducted to investigate incidence, characteristics and risk factors associated with ESBL organism among newborns in NICU. Methods : The subjects included 98 newborns admitted to NICU at Asan Medical Center between September 1998 to July 2002, from whom... |
Hemolytic uremic syndrome is the most common cause of acute renal failure in childhood. Atypical hemolytic uremic syndrome which is not usually associated with prodromal symptoms has a higher mortality rate and more tendency to progress to chronic renal failure. Children younger than two years of age are a more susceptible to pneumococcal infection and can develop more serious disease.... |
Methods : We enrolled 504 patients out of 547 patients, who were admitted to the Department of Pediatrics, Sung-Ae and Kwangmyung Sung-Ae General Hospital from November 1996 to October 2002. They were diagnosed as M. pneumoniae pneumonia by clinical characteristics and indirect particle agglutination test of M. pneumoniae. To classify into two groups, the group specific polymerase chain reaction amplification... |
Purpose : Pneumoccocus is one of the most important causes of invasive infection through the childhood period and the prevelance of antibiotics resistance of pneumococcus is increasing worldwide. A 7-valent conjugate vaccine has been developed. It is important to know the prevalence of each serotype of pneumococci in the countries where the vaccine is used to estimate the coverage rate... |
Purpose : The determination of exposure and prevalence of Mycoplasma pneumoniae pneumonia of any region should be helpful for clinical diagnosis. We studied the pattern of occurrence of M. pneumoniae pneumonia among children living in southern central Korea during the last 13 years. This area has a relatively small population and less mobility compared with metropolitan areas. Methods : We performed... |
Purpose : Lower respiratory tract infections in infant and young children are often due to a virus, especially the Respiratory syncytial(RS) virus. Chest X-ray findings in bronchiolitis and bronchopneumonia are different. The radiographic hallmark of bronchiolitis is pulmonary hyperinflation and similar to that of bronchial asthma. Bronchiolitis is predisposed to later development of bronchial asthma. To evaluate the difference of... |
Purpose : Several studies have shown that increases of eosinophil markers are common findings of asthma and Mycoplasma pneumoniae infection, and eosinophil markers reflect the clinical stage of asthma. The purpose of this study was to investigate the change of eosinophil markers according to the clinical stage of Mycoplasma pneumonia. Methods : The patient group consisted of 33 outpatient children with Mycoplasma pneumonia. Peripheral blood... |
University of Ulsan, Seoul, Korea We report a case of Alport syndrome associated with esophageal leiomyomatosis, presenting as recurrent pneumonia. A 5-year old girl who had a history of cataract visited the out patient clinic with a complaint of recurrent wheezing and respiratory difficulty which had started five months previously. Chest magnetic resonance image(MRI) and esophagography, checked on the suspicion of... |
Mycoplasma pneumoniae is the most common pathogen of the respiratory tract among school- aged children and young adults. The incidence of CNS complication is reported as 0.1-7% of Mycoplasma pneumoniae infections. We experienced a case of cerebral infarction complicated by Mycoplasma pneumoniae, and reviewed the literature about the CNS complication of Mycoplasma pneumoniae infection. |
Department of Pediatrics†, College of Medicine, Korea University, Seoul, Korea Interstitial pneumonia is a heterogenous group of inflammatory and fibrosing lesions that manifest themselves as infiltrative lung disease. Of these, nonspecific interstitial pneumonia is characterized as a variable degree of interstitial inflammation with or without fibrosis and is distinguished from usual interstitial pneumonia and desquamative interstitial pneumonia, histologically. The influx of... |
Mycoplasma pneumoniae(M. pneumoniae) is the leading cause of pneumonia in school-age children and young adults. The clinical courses are usually mild but recently, severe cases were reported such as lung abscess, Swyer-James syndrome and adult respiratory distress syndrome. Spontaneous pneumothorax associated with M. pneumoniae infection is rare. Carlisle reported a 6-year-old patient with bilateral spontaneous pneumothorax associated with M. pneumoniae... |
Purpose : Penicillin- and multidrug-resistant S. pneumoniae poses a serious threat to clinicians because the rate of resistance of S. pneumoniae to penicillin in Korea has surged up to the world's highest level. This study was performed to assess the carriage rate, serogroups and antimicrobial susceptibility of S. pneumoniae isolated from oropharynx in children. Methods : From March to July 1998,... |
Purpose : The increasing prominence of pneumococcal infections and of antimicrobial resistance has emphasized the need for a effective vaccine to reduce the risk of pneumococcal disease in childhood. To study the antibody response of pneumococcal vaccine, we compared the concentration and opsonophagocytic capacity of antibodies to the capsular polysaccharide of S. pneumoniae serotype 19F in sera from healthy adults... |
Purpose : Streptococcus pneumoniae is a normal flora and common pathogen of the upper respiratory tract. S. pneumoniae infections are estimated to cause not only localized infection such as pneumonia, and otitis media, but also systemic infections, for example meningitis, sepsis, and so on. Recently, the resistance of S. pneumoniae to penicillin and multidrug has been rapidly increasing in many... |
Purpose : Klebsiella pneumoniae is a major nosocomial pathogen in neonatal intensive care unit (NICU). Sequential outbreaks of K. pneumoniae infection in NICU could occur due to antibiotic resistant strains or persistent environmental sources in NICU. When these outbreaks are happen, epidemiological analysis must be performed to discover the nosocomial sources and clarify the nature of the outbreaks strains. We... |
Invasive diseases caused by Trichosporon beigelii are rare, usually fatal, opportunistic infections that occur exclusively in immunocompromised patients. This fungus has been known to produce cutaneous involvement in immunocompetent hosts, and is rarely reported to cause systemic disease in patients with cardiac valve replacement. In this report, we described a case of invasive Trichosporon beigelii pneumonia in a 9-year-old boy... |
Mycoplasma pneumoniae is the most common etiologic agent of pneumonia in school-aged children and young adults. It involves not only the respiratory system but includes extrapulmonary complications such as exanthem, hemolysis, arthritis, hepatic dysfuction, cardiac disease, and central nervous system disease. The pathogenesis of extrapulmonary involvements may be an autoimmune phenomena. Recent studies suggest that bronchial asthma can be initiated... |
Purpose : Allergic inflammation of the lower respiratory tract is a characteristic clinical feature in asthma patients, in which eosinophils play an important role. The activity of eosinophil may be determined by measuring the level of eosinophil cationic protein(ECP) in sputum or serum as a potential marker of the inflammatory severity. Methods : We measured the serum concentrations of ECP... |
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