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Case Report
Secondary paroxysmal dyskinesia associated with 2009 H1N1 infection
Yun Jung Hur, Taegyu Hwang
Clin Exp Pediatr. 2013;56(1):42-44.   Published online January 29, 2013

Neurological complications associated with 2009 H1N1 infection in children have been reported and recognized worldwide. The most commonly reported neurological complications are seizures and encephalopathy. Secondary movement disorders are also associated with the infection, but such cases are rarely reported. Here, we describe the case of a 14-year-old boy with paroxysmal kinesigenic dyskinesia secondary to 2009 H1N1 infection, who presented...

An adverse event following 2009 H1N1 influenza vaccination: a case of acute disseminated encephalomyelitis
Sang Teak Lee, Young June Choe, Won Jin Moon, Jin Woo Choi, Ran Lee
Clin Exp Pediatr. 2011;54(10):422-424.   Published online October 31, 2011

Acute disseminated encephalomyelitis (ADEM) is an inflammatory demyelinating disease of the central nervous system that typically follows an infection or vaccination and has a favorable long-term prognosis. We describe the first reported case of ADEM after vaccination against novel influenza A (H1N1). A previously healthy 34-month-old boy who developed ADEM presented with a seizure and left-sided weakness 5 days after...

Original Article
Clinical characteristics of 2009 pandemic influenza A (H1N1) infection in children and the performance of rapid antigen test
Yong-Jae Park, Jang-Yong Jin, Hyeon-Jong Yang, Woo-Ryung Lee, Dong-Hwan Lee, Bok-Yang Pyun, Eun-Sook Suh
Clin Exp Pediatr. 2011;54(10):405-408.   Published online October 31, 2011
Purpose

In autumn 2009, the swine-origin influenza A (H1N1) virus spread throughout South Korea. The aims of this study were to determine the clinical characteristics of children infected by the 2009 H1N1 influenza A virus, and to compare the rapid antigen and real-time polymerase chain reaction (PCR) tests.

Methods

We conducted a retrospective review of patients ≥18 years of age who presented to...

Case Report
2009 H1N1 influenza virus infection and necrotizing pneumonia treated with extracorporeal membrane oxygenation
Suntae Ji, Ok Jeong Lee, Ji-Hyuk Yang, Kangmo Ahn, Joongbum Cho, Soo In Jeong, Woo-sik Han, Yae-Jean Kim
Clin Exp Pediatr. 2011;54(8):345-349.   Published online August 31, 2011

A 3-year-old girl with acute respiratory distress syndrome due to a H1N1 2009 influenza virus infection was complicated by necrotizing pneumonia was successfully treated with extracorporeal membrane oxygenation (ECMO). This is the first reported case in which a pediatric patient was rescued with ECMO during the H1N1 influenza epidemic in Korea in 2009.
Original Article
Clinical characteristics and outcomes among pediatric patients hospitalized with pandemic influenza A/H1N1 2009 infection
Eun Lee, Ju-Hee Seo, Hyung-Young Kim, Shin Na, Sung-Han Kim, Ji-Won Kwon, Byoung-Ju Kim, Soo-Jong Hong
Clin Exp Pediatr. 2011;54(8):329-334.   Published online August 31, 2011
Purpose

The purpose of this article is to describe the clinical and epidemiologic features and outcomes among children hospitalized with pandemic influenza A/H1N1 2009 infection.

Methods

We retrospectively reviewed the charts of hospitalized pediatric patients (<18 years) diagnosed with pandemic influenza A/H1N1 2009 infection by reverse-transcriptase polymerase chain reaction at a tertiary hospital in Seoul, Korea, between September 2009 and February 2010.

Results

A total...

CD4+/CD8+ T lymphocytes imbalance in children with severe 2009 pandemic influenza A (H1N1) pneumonia
Ji Eun Kim, Siegfried Bauer, Kyong Suk La, Kee Hyoung Lee, Ji Tae Choung, Kyoung Ho Roh, Chang Kyu Lee, Young Yoo
Clin Exp Pediatr. 2011;54(5):207-211.   Published online May 31, 2011
Purpose

This study was conducted to investigate the immune responses of children with moderate and severe novel influenza A virus (H1N1) pneumonia, and to compare their clinical and immunological findings with those of control subjects.

Methods

Thirty-two admitted patients with H1N1 pneumonia were enrolled in the study. The clinical profiles, humoral and cell-mediated immune responses of the 16 H1N1 pneumonia patients who were...

Novel influenza A (H1N1) 2009 infection in the pediatric patients with hematologic and oncologic diseases in the Yeungnam region
Seok Jeong Kang, Jae Min Lee, Jeong Ok Hah, Ye Jee Shim, Kun Soo Lee, Hyun Jung Shin, Heung Sik Kim, Eun Jin Choi, So Eun Jeon, Young Tak Lim, Ji Kyeong Park, Eun Sil Park
Clin Exp Pediatr. 2011;54(3):117-122.   Published online March 31, 2011
Purpose

Natural history and consequences of the novel 2009 influenza A H1N1 (2009 H1N1) infection in immunocompromised pediatric patients are not yet fully understood. In this study, we investigated the clinical features and outcomes of the 2009 H1N1 infection in pediatric patients with hematological and oncological diseases.

Methods

We retrospectively reviewed the medical records of 528 patients who had hematological and oncological diseases...

Clinical characteristics of children with 2009 pandemic influenza A (H1N1) admitted in a single institution
Sang In Park, Min Ji Kim, Ho Yeon Hwang, Chi Eun Oh, Jung Hyun Lee, Jae Sun Park
Clin Exp Pediatr. 2010;53(10):886-891.   Published online October 31, 2010
Purpose

This study aims to investigate the clinical characteristics of children diagnosed with the novel influenza A (H1N1) in the winter of 2009 at a single medical institution.

Methods

Out of 545 confirmed cases of influenza A (H1N1) in children, using the real time RT-PCR method at Kosin University Gospel Hospital from September to December of 2009, 149 patients and their medical records...

Review Article
Novel swine-origin H1N1 influenza
Jina Lee, Hoan Jong Lee
Clin Exp Pediatr. 2009;52(8):862-868.   Published online August 15, 2009
Since its identification in April 2009, a swine-origin H1N1 influenza A virus (S-OIV) which is a reassortment of gene segments from both North American triple-reassortant and Eurasian swine influenza has been widely spread among humans in unexpected rapidity. To date, each gene segment of the 2009 influenza A (H1N1) outbreak viruses have shown high (99.9%) neucleotide sequence identity. As of July 6, 94,512...