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나재윤,박종모,이경석,강정옥,오성희,김용주 대한소아소화기영양학회 2014 Pediatric gastroenterology, hepatology & nutrition Vol.17 No.4
Purpose: This study investigated the clinical presentations of symptomatic Clostridium difficile infection (CDI) in children. Methods: We reviewed the medical records of 43 children aged <20 years who showed either positive C. difficile culture or C. difficile toxin test results between June 2010 and April 2014. Results: Of the 43 patients (mean age 6.7 years), 22 were boys. Sixteen patients (37.2%) showed both positive C. difficile culture and toxin test results. Seventeen out of 43 children (39.5%) had preexisting gastrointestinal diseases, and 26 children had other medical conditions that were risk factors for CDI. Twenty-eight children had a history of antibiotic treatment for >3 days, and the most frequently prescribed antibiotic was amoxicillin-clavulanate (35.7%). Twenty-eight patients were diagnosed with CDI despite taking probiotic supplements, most commonly Lactobacillus acidophilus (53.6%). The most common symptom was diarrhea (72.1%) at the time CDI was diagnosed. C. difficile was eradicated in 11 patients (25.6%) after treatment with oral metronidazole for 10-14 days, and in the two patients (4.6%) who required two courses of oral metronidazole. Sixteen patients (37.2%) showed clinical improvement without any treatment. Conclusion: This study showed the various clinical characteristics of CDI in children and that preexisting clinical conditions favored the development of CDI. In addition, CDI was found to occur in a number of patients even after probiotic prophylaxis given in conjunction with antibiotic therapy.
A case of generalized tonic seizures related to acute myocarditis
양정환,나재윤,이진석,김다은,송진영,강이석,예혜련 대한소아응급의학회 2020 대한소아응급의학회지 Vol.7 No.2
It is challenging to clinically distinguish between convulsive syncope and true seizure. We describe a 7-year-old girl presenting with generalized tonic seizure caused by acquired complete atrioventricular block related to acute myocarditis. After hospitalization following 6 episodes of new-onset fever with seizure, she had a short episode of abrupt complete atrioventricular block followed by another generalized tonic seizure. The concentrations of cardiac enzymes were elevated, and her echocardiogram showed a decreased left ventricular function. This case underlines the necessity of cardiac investigations in children with convulsive syncope.
Acquired Ileal Atresia in a Preterm Infant
이현주,나재윤,하태경,박현경,김창렬 대한신생아학회 2012 Neonatal medicine Vol.19 No.1
Acquired ileal atresia is a rare but life-threatening complication that can occur after recovery from necrotizing enterocolitis in premature infants. We present an unusual case of acquired ileal atresia in the distal ileum injured by ischemia after intestinal perforation in an extremely low-birth-weight infant. A 900 g (25 weeks gestation) premature infant developed a pneumoperitoneum without the radiologic manifestations of necrotizing enterocolitis on day 9 of life. Primary peritoneal drainage without further need for surgery was performed in the neonatal intensive care facility. Gastrointestinal gastrografin studies confirmed normal intestinal continuity and regular stools. Several weeks later, while the patient was receiving all nutrition orally with no medical problems, the patient’s condition suddenly deteriorated, along with clinical signs of intestinal obstruction including emesis of bilious contents and stools. Laparotomy (on day 45 of life) revealed ileal atresia with V-shaped gap mesenteric defect.
김지혜,이경석,나재윤,오재원,김용주,최영진 대한소아응급의학회 2022 대한소아응급의학회지 Vol.9 No.1
We report a case of a 14-year-old Korean boy presenting with pain in the left lower quadrant, persisting for over 10 days. Except for the persistent pain, no other symptoms, such as vomiting and diarrhea, were observed. In addition, laboratory findings were normal. He was eventually diagnosed with epiploic appendagitis, a rare disease in children. This case highlights the need for imaging study for early diagnosis of epiploic appendagitis or surgical emergencies in children who visit emergency departments with pain in the left lower quadrant without specific clinical findings.
Unusual presentation of primary iliopsoas abscess in an infant: a case report
최새한,손준혁,나재윤 대한소아응급의학회 2023 대한소아응급의학회지 Vol.10 No.4
Iliopsoas abscess (IPA) rarely occurs in newborns and infants. Symptom triad, including fever, inguinal swelling or discoloration, and limited lower limb movement, is observed in most cases. Herein, we report a case of unusual IPA in an 82-day-old boy who presented with fever as the only symptom. To our best knowledge, there have been no reports of infant IPA presenting without localizing signs. This report highlights the importance of a high degree of suspicion for timely diagnosis of infant IPA when an infant presents only with fever.
Echogenic Mass Lesion within the Main Pulmonary Artery in a Neonate
Lae-Eun Jeong,나재윤,June Huh,I-Seok Kang,Ji-Hyuk Yang,Tae-Gook Jun,Jin Young Song 대한신생아학회 2020 Neonatal medicine Vol.27 No.2
Here we present a rare case of pulmonary arterial thrombosis associated with a ductus arteriosus aneurysm that caused severe pulmonary stenosis. A 5-day-old newborn was admitted to our hospital for the evaluation of an intracardiac mass-like lesion found after the detection of a cardiac murmur. Echocardiography and heart computed tomography revealed a mass-like lesion measuring 8.1 mm in diameter across the distal main pulmonary artery to the proximal left pulmonary artery resulting in localized severe stenosis of the left pulmonary artery. Left pulmonary artery angioplasty for surgical resection of the thrombus revealed that the mass was adherent to the proximal part of the left pulmonary artery anterior wall and extended to the ductus arteriosus. Histological examination of the mass showed an old thrombus with dystrophic calcification. Five months after surgery, follow-up echocardiography showed that the left pulmonary artery peak pressure gradient had decreased but the proximal left pulmonary artery stenosis remained. Cardiac catheterization and balloon angioplasty successfully relieved the pulmonary stenosis.