• Clinical and Experimental Pediatrics
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• 제48권2호
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• pp.143-147
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• 2005

목 적 : 갑상선 기능은 여러 질환이나 스트레스에 의해서 영향을 받는 것으로 알려져 있다. 저자들은 분만 전과 분만 동안의 여러 인자와 제대혈 갑상선자극호르몬 및 갑상선호르몬 농도와의 상관관계를 알아보고자 본 연구를 시행하였다. 방 법 : 총 130명의 신생아를 대상으로 분만 즉시 제대혈을 10 mL 채취하여 갑상선자극호르몬, $T_3$와 유리 $T_4$ 농도를 방사면역학적 방법(CIS bio international kit, Germany)으로 측정하였다. 재태연령, 출생체중, 가사, 분만방식, 산모의 당뇨병 유무, 산모의 전자간증 유무 등에 따라 갑상선자극호르몬과 갑상선 호르몬 농도를 비교하였다. 결 과 : 1) 제대혈 갑상선자극호르몬 농도는 재태연령 34주 이하 $1.73{\pm}0.48{\mu}IU/mL$, 34주-37주 $2.60{\pm}0.51{\mu}IU/mL$, 38주 이상 $4.26{\pm}0.40{\mu}IU/mL$으로 재태연령의 증가에 따라 증가하였다(P<0.05). 2) 분만형태를 비교하면 질식 분만 군 $4.42{\pm}0.66{\mu}IU/mL$, 제왕절개 분만 군 $3.31{\pm}0.33{\mu}IU/mL$로 질식 분만 군에서 높았다(P<0.05). 3) 가사에 따른 갑상선자극호르몬 농도는 가사가 있는 군 $5.18{\pm}0.93{\mu}IU/mL$로 가사가 없는 군 $2.97{\pm}0.84{\mu}IU/mL$에 비해 유의하게 높았다(P<0.05). 4) 산모의 당뇨병에 따른 갑상선자극호르몬 농도는 당뇨병 군 $8.91{\pm}1.25{\mu}IU/mL$, 없는 군 $4.32{\pm}0.42{\mu}IU/mL$으로 산모 당뇨병 동반시 유의하게 높았다(P<0.05). 5) 산모에게 전자간증이 있는 군의 갑상선자극호르몬 농도는 $5.28{\pm}0.42{\mu}IU/mL$, 없는 군 $3.65{\pm}0.46{\mu}IU/mL$에 비해 유의하게 높았다(P<0.05). 6) $T_3$와 유리 $T_4$ 농도는 가사 군에서 없는 군보다 유의하게 낮았다(P<0.05). 7) 각 변수 간의 영향을 배제하였을때 임신주수, 1분 Apgar 점수, 산모의 당뇨병만이 독립적으로 제대혈의 갑상선자극호르몬 농도에 영향을 미치는 것으로 나타났다. 결 론 : 제대혈 갑상선자극호르몬 및 갑상선호르몬 농도는 산모의 당뇨병이나 산모 전자간증과 같은 분만 전 요인과 태아에게 저산소증을 초래할 수 있는 분만시 스트레스와 밀접한 연관이 있다.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제22권1호
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• pp.3-9
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• 2011

Autism and autistic spectrum disorder are chronic neuro-developmental disorders characterized by social and language impairments and stereotyped, repetitive patterns of behavior. The etiology of autism remains unknown; however, a strong genetic component has been detected and environmental factors may also be involved in their etiologies. In the current study, we reviewed evidence for the presence of prenatal and perinatal factors, gastrointestinal factors, food allergies, metabolic and heavy metal factors, and other nutritional factors that may represent risk factors for the development of autism and autistic spectrum disorder.

• 대한간호학회지
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• 제46권1호
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• pp.29-38
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• 2016

Purpose: The Perinatal Post-Traumatic Stress Disorder Questionnaire (PPQ) was designed to measure post-traumatic symptoms related to childbirth and symptoms during postnatal period. The purpose of this study was to develop a translated Korean version of the PPQ and to evaluate reliability and validity of the Korean PPQ. Methods: Participants were 196 mothers at one to 18 months after giving childbirth and data were collected through e-mails. The PPQ was translated into Korean using translation guideline from World Health Organization. For this study Cronbach's alpha and split-half reliability were used to evaluate the reliability of the PPQ. Exploratory Factor Analysis (EFA), Confirmatory Factor Analysis (CFA), and known-group validity were conducted to examine construct validity. Correlations of the PPQ with Impact of Event Scale (IES), Beck Depression Inventory II (BDI-II), and Beck Anxiety Inventory (BAI) were used to test a criterion validity of the PPQ. Results: Cronbach's alpha and Spearman-Brown split-half correlation coefficient were 0.91 and 0.77, respectively. EFA identified a 3-factor solution including arousal, avoidance, and intrusion factors and CFA revealed the strongest support for the 3-factor model. The correlations of the PPQ with IES, BDI-II, and BAI were .99, .60, and .72, respectively, pointing to criterion validity of a high level. Conclusion: The Korean version PPQ is a useful tool for screening and assessing mothers' experiencing emotional distress related to child birth and during the postnatal period. The PPQ also reflects Post Traumatic Stress Disorder's diagnostic standards well.

• Neonatal Medicine
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• 제25권1호
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• pp.16-22
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• 2018

Purpose: This study investigated predictive factors for severe neonatal thrombocytopenia, which greatly increases the need for intensive care and is associated with a high mortality rate in premature infants. Factors adopted for prompt identification of at-risk newborns include blood test results and birth history. This study analyzed the relationship between the presence of severe neonatal thrombocytopenia and the mortality rate. The causes of thrombocytopenia in premature infants were also examined. Methods: This retrospective study evaluated 625 premature infants admitted to the neonatal intensive care unit (NICU) at Chung-Ang University Medical Center. The neonates were classified into 3 groups according to the severity of thrombocytopenia: mild ($100{\times}10^9/L{\leq}platelet<150{\times}10^9/L$), moderate ($50{\times}10^9/L{\leq}platelet<100{\times}10^9/L$), or severe (platelet<$50{\times}10^9/L$). Analysis of blood samples obtained at the onset of thrombocytopenia included platelet count, white blood cell (WBC) count, hemoglobin level, hematocrit level, absolute neutrophil count, and high-sensitivity C-reactive protein level. Results: Of the 625 premature infants admitted to our NICU, 214 were detected with thrombocytopenia. The mortality rate in thrombocytopenic neonates was 18.2% (39/214), whereas a mortality rate of only 1.0% was observed in non-thrombocytopenic neonates. The major causes of thrombocytopenia were perinatal insufficiency and sepsis in premature infants. Severe thrombocytopenia was noted more frequently in premature infants with higher WBC counts and in those with a younger gestational age. Conclusion: Platelet count, WBC count, and gestational age are reliable predictors for severe neonatal thrombocytopenia. The major causes of thrombocytopenia were perinatal insufficiency and sepsis in premature infants.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제22권1호
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• pp.10-15
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• 2011

In this review, we have provided an overview of the environmental risk factors for attention deficit hyperactivity disorder (ADHD), focusing on the major environmental toxicants related to the disorder. Researchers have indicated that since the characteristics of ADHD are complex, the disorder’s etiology involves multiple genes of moderate effect interacting with environmental factors. The possible roles of prenatal and perinatal exposure have been the main focus of research on environmental risk factors for ADHD. Among environmental toxicants, we reviewed the potential effects on the development of ADHD of exposure to lead, nicotine, alcohol, polychlorinated biphenyls (PCBs), and dioxin. Further, for the each neurotoxicant, clinical prevention or intervention strategies aimed at reducing a child’s risk from environmental toxic insults have been presented.

• 한국임상약학회지
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• 제27권2호
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• pp.63-68
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• 2017

Neonates have large inter-individual variability in pharmacokinetic parameters of many drugs due to developmental differences. The aim of this study was to investigate the factors affecting the pharmacokinetic parameters of drugs, which are commonly used in critically ill neonates. Factors that reflect physiologic maturation such as gestational age, postnatal age, postconceptional age, birth weight, and current body weight were correlated with pharmacokinetic parameters in neonates, especially preterm infants. Comorbidity characteristics affecting pharmacokinetics in critically ill neonates were perinatal asphyxia, hypoxic ischemic encephalopathy, patent ductus arteriosus (PDA), and renal dysfunction. Administration of indomethacin or ibuprofen in neonates with PDA was associated with the reduced clearance of renally excreted drugs such as vancomycin and amikacin. Therapeutic hypothermia and extracoporeal membrane oxygenation were influencing factors on pharmacokinetic parameters in critically ill neonates. Dosing adjustment and careful monitoring according to the factors affecting pharmacokinetic variability is required for safe and effective pharmacotherapy in neonatal intensive care unit.

• Clinical and Experimental Pediatrics
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• 제59권8호
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• pp.319-327
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• 2016

Allergic diseases such as asthma, allergic rhinitis, atopic dermatitis, and food allergy, are most common chronic, noncommunicable diseases in childhood. In the past few decades, the prevalence has increased abruptly worldwide. There are 2 possible explanations for the rising prevalence of allergic diseases worldwide, that an increased disease-awareness of physician, patient, or caregivers, and an abrupt exposure to unknown hazards. Unfortunately, the underlying mechanisms remain largely unknown. Despite the continuing efforts worldwide, the etiologies and rising prevalence remain unclear. Thus, it is important to identify and control risk factors in the susceptible individual for the best prevention and management. Genetic susceptibility or environments may be a potential background for the development of allergic disease, however they alone cannot explain the rising prevalence worldwide. There is growing evidence that epigenetic change depends on the gene, environment, and their interactions, may induce a long-lasting altered gene expression and the consequent development of allergic diseases. In epigenetic mechanisms, environmental tobacco smoke (ETS) exposure during critical period (i.e., during pregnancy and early life) are considered as a potential cause of the development of childhood allergic diseases. However, the causal relationship is still unclear. This review aimed to highlight the impact of ETS exposure during the perinatal period on the development of childhood allergic diseases and to propose a future research direction.

• Clinical and Experimental Pediatrics
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• 제46권11호
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• pp.1080-1084
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• 2003

목 적 : 저자들은 RDS 환아의 임상 경과 중에서 PDA가 동반되는 군과 동반되지 않은 군을 비교하여, 이들의 주산기 병력의 특성, 임상 양상과 경과를 비교 관찰하여 두 군 사이에 차이점이 있는지를 검토함으로서, 향후 RDS 환아의 관리에서 PDA 동반에 따른 효율적인 관리의 정보를 얻기 위하여 본 연구를 실시하였다. 방 법 : 2000년 1월부터 2002년 12월까지 경희대학교병원 신생아 집중치료실에서 신생아 RDS로 진단되어 치료한 총 83례를 대상으로 하였다. 총 83례 중에서 PDA를 동반한 군(A군)은 17례, PDA를 동반하지 않은 군(B군)은 66례였다. PDA는 울혈성 심부전의 임상증상을 보이거나, 청진상 심잡음이 들리며, 방사선 소견상에서 폐부종이 심해지거나 CT ratio가 증가되는 경우에 심초음파를 하여 진단하였다. 후향적 방법으로 증례들의 임상 기록지를 검토하여, 두 군 사이의 임상적 양상과 경과의 차이점을 분석하였다. 결 과: A군에서 B군에 비해 재태기간이 짧고 출생 체중이 낮아 미숙의 정도가 심할수록 PDA의 발생 빈도가 높았다. 주산기 가사의 빈도는 A군에서 의미있게 높았다. 만성 폐질환, 뇌실 내출혈, 괴사성 장염, 미숙아 망막증, 구루병, 패혈증, 담즙성 황달의 빈도가 B군에 비하여 A군에서 높았다. 결 론 : 두 군의 주산기 병력의 특성은 유의한 차이를 보임을 알 수 있었고 만성 폐질환 등의 합병증의 발생이 유의한 차이를 보였으나 후자의 경우 재태기간을 포함한 여러 인자를 고려하여야 하므로 앞으로 더 많은 연구가 이루어져야 한다고 사료된다.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제16권1호
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• pp.79-89
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• 2005

연구목적 : 본 연구에서는 지역사회에서 확인된 반항성 도전장애 (Oppositional defiant disorder 이하 ODD) 아동들을 대상으로 이들의 역학적 특징, 공존 정신병리 및 환경적 위험 요인을 파악하고자 하였다. 방법 : 본 연구는 서울 근교의 지방도시(부천시)에서 무작위로 선정된 1학년부터 6학년까지의 초등학생 986명을 대상으로 시행되었으며, 모든 정보는 부모로부터 얻었다. 우선 DSM-III-R과 DSM-IV에 의한 파탄적 행동 평가척도를 통해 대상군을 선정하였고, 나머지 군을 대조군으로 선정하였다. 소아행동조사표, 아동성격척도를 통해 아동 문제 및 기질을 조사하였다. 또한 가족적응/결속척도, 가족기능/만족도척도를 통해 가족 기능을 평가하였고, 동시에 임신-분만-주산기 문제들을 조사하였다. 두 군간의 차이는 t-검정과 $\chi^2$-검정을 통해 비교하였다. 결과 : ODD군 아동은 대조군에 비해 아동행동조사표(child behavior checklist : CBCL)의 모든 소항목과 파탄적행동장애평가표(disruptive behavior disorder scale : DBDS)의 주의력결핍/과잉행동 장애 항목에서 유의하게 높은 점수를 보여 전반적인 공존 정신병리가 심한 것으로 평가되었고, 가족 결속력, 가족 기능/만족도가 낮은 것으로 평가되었다. 임신-분만-주산기 문제 중에서는 임신기의 심한 정서적 스트레스, 임신 중 약물 복용, 산후 우울증 빈도에서 대조군에 비해 유의하게 높은 빈도를 나타냈다. 성격척도에서는 ODD군이 보다 높은 위험회피성, 새것추구성을 보이는 것에 반해 보상의존성은 낮은 것으로 평가되었다. 결론 : 본 연구는 ODD를 독립된 대상군으로 선정하여 시행된 첫번째 지역사회 연구라는 점에 의의를 가진다. 본 연구의 결과는 반항성 도전장애 아동들에게 임신-분만-주산기의 생물학적인 환경적 위험 요인과 가족 기능으로 대표되는 심리-사회학적인 환경적 위험 요인이 동시에 증상 발현에 관여할 가능성이 있음을 시사하는 것이다. 또한 대조군에 비해 높은 수준에서 주의력결핍과잉행동장애(attention deficit hyperactivity disorder ; ADHD), 우울, 불안 등의 다양한 공존 병리를 보여 ODD에 동반된 증상에 대한 정확한 진단과 치료가 요구된다고 할 수 있다. 향후 ODD의 질병 경과를 파악하고 위험 요인간의 상호관계를 밝히며 공존 병리 존재 시 치료 모델을 확립하기 위한 보다 자세한 연구가 요구된다.

• Clinical and Experimental Pediatrics
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• 제61권9호
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• pp.279-284
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• 2018

Purpose: This study aimed to determine the frequency of abnormalities in the newborn oral cavity and to evaluate the association with prenatal and perinatal factors. Methods: This cross-sectional study evaluated 2,216 newborns. Oral findings were assessed in the first 24 hours of life using visual examination. Sex, weight, length, gestational age, and medical disorders at birth were recorded. Maternal demographic and medical information was also obtained. Results: The most common oral findings were Bohn's nodules, Epstein's pearls, and dental lamina cysts. Other intraoral findings included odontogenic cysts, ankyloglossia, and natal teeth, among others. In logistic regression analyses, folic acid consumption during pregnancy was significantly associated with Bohn's nodules (odds ratio [OR], 1.79; 95% confidence interval [CI], 1.23-2.55; P=0.002), Epstein's pearls (OR, 1.63; 95% CI, 1.14-2.33; P=0.007), and dental lamina cysts (OR, 1.45; 95% CI, 1.02-2.05; P=0.038). Moreover, preterm births were negatively associated with prevalence of Bohn's nodules (OR, 0.63; 95% CI, 0.50-0.80; $P{\leq}0.0001$). Comparison between newborns with and without oral inclusion cysts showed that maternal folic acid and iron intake were significantly different (P<0.05). Conclusion: Maternal folic acid and iron intake were associated with the prevalence of oral inclusion cysts.