• Clinical and Experimental Pediatrics
• /
• 제59권7호
• /
• pp.285-291
• /
• 2016

That rotavirus infection can cause neurological symptoms in young children has been well established. However, it is surprising why rotavirus infection has been overlooked as a cause of neonatal seizures for many years, despite significant research interest in neonatal rotavirus infection. Neonates are the age group most vulnerable to seizures, which are typically attributed to a wide range of causes. By contrast, because rotavirus infection is usually asymptomatic, it has been difficult to identify an association between this virus and neonatal seizures. The conventional wisdom has been that, although neonates are commonly infected with rotavirus, neurological complications are rare in this age. However, recent studies using diffusion-weighted imaging (DWI) have suggested a connection between rotavirus infection and neonatal seizures and that rotavirus infection can induce diffuse white matter injury without direct invasion of the central nervous system. The clinical features of white matter injury in rotavirus-infected neonates include the onset of seizures at days 4-6 of life in apparently healthy term infants. The recent findings seem to contradict the conventional wisdom. However, white matter injury might not be a completely new aspect of rotavirus infection in neonates, considering the forgotten clinical entity of neonatal seizures, 'fifth day fits'. With increased use of DWI in neonatal seizures, we are just starting to understand connection between viral infection and white matter injury in neonates. In this review, we discuss the historical aspects of rotavirus infection and neonatal seizures. We also present the clinical features of white matter injury in neonatal rotavirus infection.

• Perinatology
• /
• 제29권4호
• /
• pp.147-152
• /
• 2018

Objective: This study examines whether maternal group B Streptococcus (Streptococcus agalactiae, GBS) infection was associated with preterm births and premature neonatal outcomes. Methods: Maternal and neonatal outcomes were examined among singleton pregnant women with preterm birth (from $24^{+0}weeks$ to $36^{+6}weeks$) who were tested for GBS (n=203) during the pregnancy. Data were collected retrospectively from the medical records of women who delivered at our hospital from January 2015 to February 2017. We compared obstetrical factors (causes of preterm birth) and neonatal (gestational age at delivery, birth weight, Apgar score 1 min/5 min, hospitalization period, duration of mechanical ventilation, neonatal C-reactive protein within three days, and other complication [respiratory distress syndrome, neonatal deaths]) outcomes between GBS-infected and non-infected pregnant women. Results: There were 203 singleton pregnant women included in the study, 25 of whom were confirmed to have a GBS infection during the pregnancy. There was no difference in neonatal outcomes by GBS status. Preterm premature rupture of membranes (pPROM), as an obstetric factor, was associated with GBS infection (P=0.022). GBS infection raised the risk of pPROM by 3.6 times (odds ratio 3.648, 95% confidence interval 1.476-9.016, P=0.005). Conclusion: GBS infection in preterm birth was associated with pPROM but did not result in adverse neonatal outcomes. Continuous attention and evaluation of GBS infection, a major cause of neonatal sepsis and pneumonia, are needed.

• Neonatal Medicine
• /
• 제17권1호
• /
• pp.123-126
• /
• 2010

성인에서 A형 간염은 현증 감염이 대부분이지만, 소아에서는 무증상 또는 경한 증상을 보이는 경우가 많았다. 그동안 외국에서는 임신 및 분만 기간 동안에 발생한 A형 간염의 산모와 이로 인한 신생아 A형 간염에 대한 증례 보고가 드물지 않게 있었다. 국내에서는 20대와 30대의 젊은 성인에서 A형 간염에 대한 항체 양성률이 낮아지고 있는 가운데, 이들 산모들의 A형 간염에 대한 위험성이 증가하고 있는 상황이며, 아직까지 국내에서는 A형 간염에 이환된 신생아에 대한 증례 보고가 없었다. 이에 저자들은 A형 간염 산모로부터 이환된 것으로 보이는 급성 A형 간염 신생아를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

• Pediatric Infection and Vaccine
• /
• 제19권2호
• /
• pp.43-54
• /
• 2012

Group B streptococcus (GBS) is the leading cause of neonatal sepsis and meningitis in developed countries. This article reviews the neonatal invasive GBS disease, maternal GBS colonization, and prevention strategies in the context of recent epidemiological changes in Korea. Although Korean neonates had been supposed to have low incidence of invasive GBS disease, GBS has been recently reported to be the most common cause of invasive neonatal infection after 1990s. Among Korean pregnant women, GBS carriage rate in the vagina and rectum has been reported to be much lower than that in Western countries. However, it has increased in recent studies. For decision making about preventive strategy for neonatal GBS disease in Korea, further studies are required in terms of the incidence of neonatal GBS infection and serotype distribution. In addition, studies about maternal carriage rate and serotype distribution have to be continued.

• Parasites, Hosts and Diseases
• /
• 제37권3호
• /
• pp.149-156
• /
• 1999

Pneumocystis carinii is pulmonary pathogen of immunocompromised humans or other mammals. Its infection results from activation of organism involves in latent infection or form new infection through the air. Almost all children are known to be infected within 2 to 4 years of birth, though prenatal transplacental transmission has not yet been demonstrated. In this study we observed experimental P.carinii infection in neonatal rats, thus investigating the possibility of transplacental vertical transmission by Diff-Quik staining of the lung impression smears and in-sity hybridization for lung sections. The postive rate of P.carinii infection in immunosuppressed maternal rats was 100%, but that in normal maternal rats was 0%. Cystic forms of P.carinii were observed in three of six 1-week old neonatal rats born of heavily infected mothers, but none of them was positive by in-situ hybridization. Five weeks after birth, cystic forms were detected in four neonatal rats. In the lobes of the lungs, no predilection site of P.carinii was recognized. Counts of cystic forms on smears and the reactivity of in-situ hbridization in the lungs of neonatal rats 0 were signficantly lower than in maternal rats. The present findings suggest that P.carinii is rarely transmitted through the placenta and proliferates less successfully in the lungs of neonatal rats than in mothers.

• Pediatric Infection and Vaccine
• /
• 제18권1호
• /
• pp.15-22
• /
• 2011

Invasive Candida infections (ICI) have become the third most common cause of late-onset infection among premature infants in the neonatal intensive care unit (NICU). Risk factors include birth weight less than 1,000 g, exposure to more than two antimicrobials, third generation cephalosporin exposure, parenteral nutrition including lipid emulsion, central venous catheter, and abdominal surgery. Candida colonization of the skin and gastrointestinal tract is an important first step in the pathogenesis of invasive disease. Strict infection control measures against the infection should be done in the NICU. The following practices are likely to contribute to reducing the rate of ICI: (1) restriction of broad-spectrum antibiotics, antacids and steroid; (2) introduction of early feeding and promoting breast milk. Fluconazole prophylaxis may be an effective control measure to prevent Candida colonization and infections in individual units with high incidence of fungal infection. In addition, there is a need of further data including the development of resistant strains and the effect on long-term neurodevelopmental outcomes of infants exposed to drugs before the initiation of routine application of antifungal prophylaxis in the NICU.

• 한국의료질향상학회지
• /
• 제6권1_2호
• /
• pp.120-134
• /
• 1999

Background : This study was conducted to reduce the neonatal infection rate in nursery. Methods : 50 items, structural problems in NICU were selected by open questionnaire and categorized into 11 similar items. 38 items were picked out among them and then categorized into 6 similar items. We carried out quality improvement focusing around 6 items. Results : The high achievement of goal in CQI Activities was shown in hand washing for reducing infection of NICU after July. The local infection in IV site was not found and hand washing and gowning of protectors were achieved by 100%. Conclusion : Neonatal infection rate was reduced through the quality improvement activities, but structural problem of Hospital still remained.

• Clinical and Experimental Pediatrics
• /
• 제50권7호
• /
• pp.698-701
• /
• 2007

Cryseobacterium meningosepticum은 흙, 병원, 수돗물을 포함한 물이 있는 환경에서 발견되는 그람 음성 막대균으로, 미숙아, 노인과 같이 면역성이 결여된 인체에 기회감염을 일으키고, 미숙아에서는 패혈증, 뇌수막염과 같은 중증 질환을 유발하여 사망률과 합병증 발생이 높다. 특히, 균주가 병원내 배수관, 기계장비등을 통해 오염되어 신생아실에서 폭발적 유행이 가능하다. 저자들은 미숙아에서 발생한 다항생제 내성 C. meningosepticum에 의한 패혈증, 뇌수막염을 ciprofloxacin으로 치료한 1례와 동기간에 무증상 보균상태를 보였던 1례와 성공적인 환경검사와 조절에 대해서 보고하는 바이다.

• Neonatal Medicine
• /
• 제16권1호
• /
• pp.94-98
• /
• 2009

저자들은 태반에서 L. monocytogenes 균이 동정된 무증상 산모에서 출생한 $26^{+4}$주, 930g 초극소 저체중 출생아에서 리스테리아 조기 패혈증 및 폐렴이 발생하여 항생제 치료 후 호전된 1례를 경험하여 이를 문헌 고찰과 함께 보고하는 바이다.

• 한국동물위생학회지
• /
• 제17권1호
• /
• pp.37-43
• /
• 1994

The rate of 58 neonatal calves in infection of Theileria sergenti was investigated in random samples on the farms located in Kyunggi, Chonbuk districts of Korea. 1. The criteria used in veryfying infection with T. sergenti included the detection of parasites by giemsa stain and acridine orange stain in the blood smear slides. 2. Further evidence of current or previous exposure to T. sergenti was based on demonstration of T. sergenti specific antibody and antigen by the western immunoblot and the directed immunofluorescent antibody test in the peripherial blood of the calves. 3. The prevalence rates were 35%, 50% in Kyunggi, Chonbuk provinces respectively and the overall prevalence in all the farms was 43.2％ by means of acridine orange stain. 4. The parasites that were observed in the peripherial blood of calves was showen surely by the western immunoblot to the characteristic 34KD antigen among the proteins of T. sergenti (Korean isolate). 5. And the antigen of the neonatal calves reacted at the very highest titer(1 : 2, 560) 6. These data highlight the significances of T. sergenti in the neonatal calf disease in Korea.