• 제목/요약/키워드: head circumference

검색결과 158건 처리시간 0.021초

Evidence for adverse effect of perinatal glucocorticoid use on the developing brain

  • Chang, Young Pyo
    • Clinical and Experimental Pediatrics
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    • 제57권3호
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    • pp.101-109
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    • 2014
  • The use of glucocorticoids (GCs) in the perinatal period is suspected of being associated with adverse effects on long-term neurodevelopmental outcomes for preterm infants. Repeated administration of antenatal GCs to mothers at risk of preterm birth may adversely affect fetal growth and head circumference. Fetal exposure to excess GCs during critical periods of brain development may profoundly modify the limbic system (primarily the hippocampus), resulting in long-term effects on cognition, behavior, memory, co-ordination of the autonomic nervous system, and regulation of the endocrine system later in adult life. Postnatal GC treatment for chronic lung disease in premature infants, particularly involving the use of dexamethasone, has been shown to induce neurodevelopmental impairment and increases the risk of cerebral palsy. In contrast to studies involving postnatal dexamethasone, long-term follow-up studies for hydrocortisone therapy have not revealed adverse effects on neurodevelopmental outcomes. In experimental studies on animals, GCs has been shown to impair neurogenesis, and induce neuronal apoptosis in the immature brains of newborn animals. A recent study has demonstrated that dexamethasone-induced hypomyelination may result from the apoptotic degeneration of oligodendrocyte progenitors in the immature brain. Thus, based on clinical and experimental studies, there is enough evidence to advice caution regarding the use of GCs in the perinatal period; and moreover, the potential long-term effects of GCs on brain development need to be determined.

교정나이 40주(만삭)까지 미숙아의 성장패턴 (Growth Patterns of Premature Infants Up to 40th Term Week of Corrected Age)

  • 안영미;손민;이상미
    • 대한간호학회지
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    • 제41권5호
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    • pp.613-622
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    • 2011
  • Purposes: Study purpose were to describe growth patterns of premature infants in weight, length and head circumference from birth to 40th week of corrected ages (CA) and to explore factors affecting patterns. Methods: A longitudinal descriptive study was conducted with 267 premature infants. They were categorized into 2 groups; GA group with measurements at birth and the CA group with measurements at CA, which was categorized into 3 groups (group 1-3) by WHO guideline for gestational age (GA) at birth. Results: GA group presented greater measures in all than CA group at same week of life. Among CA groups, group 3 showed the highest measurements, up to 37 weeks of life, though this disappeared at 38-40 weeks. Reversely, group 1 revealed the highest growth rates in all measures, followed by group 2 and group 3. Significant interaction was observed in all measures between week of life and any type of groups. Conclusions: Higher measures in GA group, as well group 3 among CA groups, supported the superiority of intra-uterine environment overriding quality of regimen from NICU. Regardless of growth acceleration, smaller infants remain smaller, indicating that intra-uterine thrifty phenotype may continue at least up to the 40th week of CA.

Effects of Starvation in Rock Bream, Oplegnathus fasciatus and Olive Flounder, Paralichthys olivaceus

  • Park, In-Seok;Gil, Hyun Woo;Yoo, Gwang Yeol;Oh, Ji Su
    • 한국발생생물학회지:발생과생식
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    • 제19권2호
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    • pp.97-109
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    • 2015
  • We assessed the effects of various dietary conditions on the growth, phenotypic traits, and morphometric dimensions of rock bream, Oplegnathus fasciatus and on the morphometric dimensions of sectioned olive flounder, Paralichthys olivaceus. Rock bream in the fed group increased in body weight, standard length, and condition factor, but these parameters decreased significantly for fish in the starved group (P < 0.05). The head connection dimensions of fish in the fed group decreased, while for starved fish there was increase in external morphometric dimensions (P < 0.05). In both species, sectioned morphometric analysis revealed that fish in the fed group had a larger body circumference and cross-cut sectional area, and greater cross-cut section height, relative to the starved group (P < 0.05).

Glutaric Aciduria Type 1 1례 (A Case of Glutaric Aciduria Type 1)

  • 송준영;김철민;신영림;유한욱
    • Clinical and Experimental Pediatrics
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    • 제45권10호
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    • pp.1278-1282
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    • 2002
  • 저자들은 경련 발작후 퇴행성 발달 지연과 무도증 양상의 운동을 보이는 13개월 여아를 두부 자기공명 검사와 소변 유기산 검사를 이용하여 국내 최초로 glutaric aciduria type 1 1례로 진단하였기에 보고하는 바이다.

미숙아 마사지 교육 프로그램이 미숙아의 성장과 어머니 역할수행에 대한 자신감 및 만족도에 미치는 효과 (Effects of a Massage Program on Growth of Premature Infants and on Confidence and Satisfaction in the Mothering Role)

  • 김지영
    • Child Health Nursing Research
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    • 제11권4호
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    • pp.381-389
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    • 2005
  • Purpose: This study was done to investigate the effects of a massage program on the growth of premature infants and on the mothers' confidence and satisfaction in the mothering role. Methods: The participants were 29 mothers of premature infants hospitalized in a neonatal intensive care unit at CNU Hospital (14 in the massage program group and 15 in control group). Massage was done for 10-15 minutes, 2-3 times a day for 4 weeks. The data were using the SAS PC+ program. Result: Significant differences were found in the ratios of weight gain (Z=2.24, p=.013), grow in length (Z=2.50, p=.006) and increase in head circumference (Z=1.91, p=.028) between the massage program group and the control group. Confidence in the mothering role was significantly higher for mothers in the massage program group compared to those in the control group (Z=2.69, p=.004), but there was no significant difference in satisfaction with the mothering role between the two groups (Z=.88, p=.191). Conclusion: These results suggest that the massage program enhances growth of premature infants as well as enhancing the mother's confidence in her role as mother. Therefore, the massage program for premature infants can be use as an effective nursing intervention.

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고압폐쇄분전반의 전력케이블 헤드와 안전셔터에서의 사고위험 평가 (Accident Risk Assessment between Power Cable Head and Safety Shutter in Medium Voltage Metal-Clad Switchgear)

  • 송길목;한운기;김영석
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2006년도 춘계학술대회 논문집
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    • pp.264-267
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    • 2006
  • This paper describes the accident analysis by modeling the current transformer mounting in meaium voltage metal-clad switchgear(MCSG). In analyzing the accident the reconstruction at the current transformer mounting(VCB connecting guide) has to be taken into account. The accident was modelled as a 3-phase ground fault mounting between the end plate of a high voltage lines and the safety shutter at the current transformer mounting of the VCB inside the metal clad switchgear. Since the outside maintenance of the metal clad switchgear is restricted by the enclosed compartments, its circumference has to be kept clean. Through the reconstruction results, it was confirmed that the fault of the enclosed switchboard could be reduced when the shutter made of Fe material was changed into an insulation.

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Growth Hormone Therapy in PWS with Mobile Application-Living with PWS

  • Im, Minji
    • Journal of mucopolysaccharidosis and rare diseases
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    • 제4권2호
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    • pp.42-44
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    • 2018
  • Prader-Willi syndrome (PWS) is a multisystemic complex disorder characterized by hyperphagia and impaired satiety which lead to severe and early obesity. In infancy, hypotonia and poor suck are main problems, and a child goes through Failure-to-thrive. During childhood, clinical manifestations change to food seeking as well as excessive weight gain, short stature, developmental delay, cognitive disability and behavioral problems. Also, growth hormone insufficiency is frequent. Most patients receive the recombinant growth hormone (rGH) therapy that provides improvement in growth, body composition, and physical attributes. The clinical care guideline for rGH therapy in PWS had been noticed in 2013. The rGH therapy helps in body fat, lean body mass, height SDS and head circumference. Also, the rGH therapy helps motor function, psychomotor development and cognition and behavioral issues.In Samsung medical center, there are clinical care guidelines for rGH therapy in PWS and an useful application for the patients. 'Living with PWS', the name of an moblie application for PWS patients, was introduced in the lecture. The application revised to version 2. It was made more convenient to users than in version 1. It helps caregivers to schedule the rGH therapy and to monitor height and weight.

Verification of the Accuracy of Photogrammetry in 3D Full-Body Scanning -A Case Study for Apparel Applications-

  • Eun Joo Ryu;Lu Zhang;Hwa Kyung Song
    • 한국의류학회지
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    • 제47권1호
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    • pp.137-151
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    • 2023
  • Stationary 3D whole-body scanners generally require 5 to 20 seconds of scanning time and cannot effectively detect armpit and crotch areas. Therefore, this study aimed to analyze the accuracy of a photogrammetric technique using a multi-camera system. First, dimensional accuracy was analyzed using a mannequin scan, comparing the differences between the scan-derived measurements and the direct measurements, with an allowable tolerance of ISO 20685-1:2018. Only 2 of 59 measurement items (ankle height and upper arm circumference, specifically) exceeded the ISO 20685-1:2018 criteria. When compared with the results of the eight stationary whole-body scanners assessed by the literature, the photogrammetric technique was found to have the advantage of scanning the top of the head, armpit, and crotch areas clearly. Second, this study found the photogrammetric technique is suitable for obtaining the body scans because it can minimize the perform scanning, resulting in a reduction of measurement errors due to breathing and uncontrolled movements. The error rate of the photogrammetry method was much lower than that of stationary 3D whole-body scanners.

2007 한국 소아 청소년 성장도표 : 개발 과정과 전망 (2007 Korean National Growth Charts: review of developmental process and an outlook)

  • 문진수;이순영;남정모;최중명;최봉근;서정완;오경원;장명진;황승식;유명환;김영택;이종국
    • Clinical and Experimental Pediatrics
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    • 제51권1호
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    • pp.1-25
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    • 2008
  • 목 적 : 1967년 이후로 1998년까지 대한소아과학회와 정부는 매 10년마다 한국 소아청소년 신체발육표준치를 제정하여 왔다. 지난 40년간의 한국 성장도표는 체계적이고 통계학적인 표준화를 거치지 않은 기술적인 도표였다. 전 세계적인 비만의 유행에 대하여 WHO나 CDC와 같은 국제적인 기관들은 이에 대처하기 위하여 성장도표의 제정 원리들을 변경하여 왔다. 본 논문은 고찰과 함께 새로운 2007년 성장도표 개발과정을 요약하였다. 방 법 : 질병관리본부 만성병조사과의 주도로 2005년에 새로운 성장도표 제정을 위한 신체계측 조사를 시행하였고, 그 결과 소아 비만의 급증과 청소년 최종 성장의 세대별 증가 현상이 정체된 것을 확인하였다. 이에 연구진은 혁신적인 방법론을 도입하였으며, 이를 통하여 새로운 성장도표를 제정하였다. 확보 가능한 원자료인 1997년 및 2005년 측정 자료를 표준화고 통합하였으며, LMS 방법을 도입하여 통계적 모델링을 시행하였다. 결 과 : 표준화된 자료로서 연령별 신장, 연령별 체중, 연령별 체질량지수, 연령별 두위, 신장별 체중 도표가 제공되며, 2005년 조사의 표준화되지 않은 자료로 제공되는 연령별 허리둘레, 연령별 가슴둘레, 연령별 상완둘레, 연령별 피부 두겹집기가 제공된다. 임상 지침도 함께 제공된다. 결 론 : 새로운 한국 성장도표의 개발 과정과 결과는 국제적인 기준인 WHO 표준성장도표 및 미국 CDC 성장도표의 방법론을 적용한 것으로서, 비만과 성 발육이 가속화된 현 상황에 적절하다. 이는 특히 한국 국민과 한민족에게 유용하다. 향후 보다 과학적인 표준을 제시하기 위하여 지속적인 연구가 요청된다.

정신분열병 환자에서 신체미세기형에 관한 연구 (Minor Physical Anomalies in Patients with Schizophrenia)

  • 주은정;정성훈;맹소진;윤세창;김종훈;김철응;신영민;김용식
    • 생물정신의학
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    • 제9권2호
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    • pp.140-151
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    • 2002
  • Object and Method:Minor physical anomalies(MPAs) are frequently seen in patients with schizophrenia. MPAs are considered to arise from the anomalous development of ectoderm-originated tissues in the developing fetus. Since the central nervous system originates from ectoderm, MPAs can be regarded as externally observable and objective indicators of the aberrant development which might have taken place in the central nervous system. To investigate whether MPAs are more frequent in schizophrenic patients, the frequencies of MPAs were compared between schizophrenic patients and normal controls. Total 245 schizophrenic patients diagnosed with DSM-IV(male : 158, female : 87), and 418 normal control subjects(male : 216, female : 202) were included in this study. The MPAs were measured using the modified Waldrop scale with fifteen items in six bodily regions; head, eye, ear, mouth, hand, and foot. Result:The total scores of Waldrop scale were $4.40{\pm}1.93$($mean{\pm}standard$ deviation) in patients and $3.43{\pm}1.68$ in controls for females, and for males, $4.58{\pm}1.75$ in patients and $4.28{\pm}1.59$ in controls. For females, the excess of MPAs in schizophrenic patients was statistically significant(t-test : p<0.001). For males, schizophrenic patients also showed more MPAs than normal controls, but this tendency did not reach statistical significance (t-test : p=0.094). When the modified Waldrop total scores excluding head circumference were compared, the total scores in schizophrenic patients were significantly higher for both male and female subjects(t-test : male p<0.001, female p=0.001). The individual anomaly items included in Waldrop scale were also investigated. The items of epicanthus, hypertelorism, malformed ears, syndactylia were significantly more frequent in schizophrenic patients. In contrast, the items of adherent ear lobes, asymmetric ears, furrowed tongue, curved fifth finger, single palmar crease and big gap between toes did not show any differences in frequency between schizophrenic patients and normal controls. Since a lot of statistical analyses showed different results between male and female subjects, it seems to be necessary to consider gender as an important controlling variable for the analysis, however only the item of head circumference showed statistically significant gender-related difference according to log-linear analysis. Conclusion:With a relatively large sample size, the frequencies of MPAs enlisted in Waldrop scale were compared between schizophrenic patients and normal controls in this study. MPAs were more frequently seen in schizophrenic patients and, especially, several specific items in the Waldrop scale showed prominent excess in schizophrenic patients. Although definite conclusions cannot be drawn due to the inherent limitation of the study using Waldrop scale, these results seem to support the possibility that aberrant neurodevelopmental process might be involved in the pathogenesis of schizophrenia in some of the patients.

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