You-Sook Youn

Learn More
Mycoplasma pneumoniae (MP), the smallest self-replicating biological system, is a common cause of upper and lower respiratory tract infections, leading to a wide range of pulmonary and extra-pulmonary manifestations. MP pneumonia has been reported in 10 to 40% of cases of community-acquired pneumonia and shows an even higher proportion during epidemics. MP(More)
BACKGROUND M. pneumoniae pneumonia (MP) has been reported in 10-40% of community-acquired pneumonia cases. We aimed to evaluate the difference of clinical features in children with MP, according to their age and chest radiographic patterns. METHODS The diagnosis of MP was made by examinations at both admission and discharge and by two serologic tests: the(More)
PURPOSE Mycoplasma pneumoniae (MP) pneumonia epidemics have occurred in 3- to 4-year cycles in Korea. We evaluated the epidemiologic characteristics of MP pneumonia in Daejeon, Korea, from 2003 to 2012. METHODS We retrospectively analyzed 779 medical records of children (0-15 years of old) with MP pneumonia admitted to our institution and compared the(More)
occurred worldwide in 2009. Some previously healthy patients experienced rapidly progressive pneumonia leading to acute respiratory distress syndrome (ARDS) and even death. Th e eff ect of corticosteroids on these severely aff ected patients is controversial because of a lack of controlled clinical trials [1]. During the pandemic in South Korea, we observed(More)
The authors compared pre-treatment and post-treatment characteristics of 206 prospectively enrolled patients with Kawasaki disease (KD) responsive to intravenous immunoglobulin (IVIG) with those of 23 (10% of total) IVIG non-responders. Demographic characteristics were similar in both groups. Compared to IVIG responders, non-responders had a longer total(More)
BACKGROUND There was a pandemic influenza around the world in 2009 including South Korea since last pandemic occurred four decades ago. We aimed to evaluate the epidemiological and clinical characteristics of this infection in childhood. METHODS We evaluated the epidemiologic characteristics of all the subjects infected with the 2009 H1N1 influenza A(More)
BACKGROUND In 2009, there was an influenza pandemic in South Korea. The aim of this study was to evaluate the epidemiological, clinical and laboratory characteristics of this infection in children and adults. METHODS We evaluated the epidemiologic characteristics of patients infected with the 2009 H1N1 influenza A virus (4,463 patients, age range from 2(More)
BACKGROUND Mycoplasma pneumoniae (MP) pneumonia is a self-limiting disease, but some patients complain of progressive pneumonia, despite of appropriate antibiotic treatment. We aimed to introduce the role of immune-modulators (corticosteroid and/or intravenous immunoglobulin, IVIG) treatment for childhood MP pneumonia based on previous our experiences. (More)
PURPOSE The introduction of the mumps vaccine has dramatically reduced the number of mumps cases, but outbreaks have recently occurred among highly vaccinated populations in developed countries. Epidemiological and clinical characteristics of patients with mumps admitted between 1989 and 2012 in a single hospital in Korea are described in the present study.(More)
BACKGROUND The goal of this study is to evaluate the changes in the epidemiologic and clinical features of Kawasaki disease (KD) in a period of 20 years. METHODS We compared the epidemiologic features of 3 KD patient groups: those admitted from 1987 to 1990 (122 cases), from 1997 to 2000 (137 cases) and from 2007 to 2010 (102 cases). For clinical(More)