• Journal of Chest Surgery
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• 제25권6호
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• pp.621-629
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• 1992

Thirteen sternocosal elevations for pectus excavatum were performed on twelve patients between Jan 1989 and Sep. 1991. Eleven among the twleve patients were male. The subjects ranged in age from 2 years to 20 years, with a mean age of 8.33 years[SD=4.80 years], Eleven patients were below 15 years. The early postoperative evaluation by Humphreys` criteria except keloid formation was excellent in all the patients. The lower vertebral index[LVI], configuration index[CI], and upper vertebral index[UVI] were measured on the lateral chest roentgenogram. The LVI and CI improved significantly from 0.31$\pm$0.06 and 1.14$\pm$0.06 preoperatively to 0.25$\pm$0.03 and 0.78$\pm$1.10 postoperatively. The degrees of depression, flatness, and asymmetry and funnel index were measured at the most deformed portion on the computed tomgram performed pre- and postoperatively. The degrees of depression and funnel index improved significantly from 3.32$\pm$0.73 and 5.77$\pm$1. 54 preoperatively to 1.85$\pm$0.14 and 2.96$\pm$0.43 postoperatively, There was no significant change in the degree of flatness however, Six postoperative morbidities occurred in five patients Three were superficial wound infection, two hemopneumothorax, and one reoeration, Reoperation was performed due to forward displacement of the distal sternum below the posterior sternotomy, The findings of this study suggest that the sternocostal elevation is an excellent primary method for the pectus excavatum of children and young adolescents.

• 한국콘텐츠학회논문지
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• 제14권6호
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• pp.262-270
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• 2014

유소년 약시환자의 생활환경특성을 알아보기 위해 2013년 9월 2일부터 11월 23일까지 약시진단을 받은 만 3세에서 12세의 안과 내원환자의 보호자 104명을 대상으로 설문조사하여 결과를 분석하였으며, 약시 진단시기는 만 4세(28.8%)때 가장 많이 진단을 한 것으로 나타났다. 또한 보호자 연령이 높을수록 약시 진단시기가 늦은 것으로 나타났으며(p<.01), 부모의 교육수준이 높을수록 약시 진단시기가 빠른 것으로 나타났다(p<.05). 위의 결과에 따라 유소년약시의 최초 진단시기와 생활환경 특성이 서로 밀접한 관련이 있음을 알 수 있으며 사회 환경적 요인과 생활환경 특성이 관련 있음을 알 수 있었다. 이러한 결과는 향후 지역의 소외계층이나 직업, 연령, 학력의 지형적인 분포에 따라 적극적인 계몽과 사회제도적 개선으로 국민 안건강 향상에 디딤돌이 되었으면 한다.

• Nutrition Research and Practice
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• 제14권3호
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• pp.230-241
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• 2020

BACKGROUND/OBJECTIVES: Inadequate nutrition in infants and young children affects physical growth and neurocognitive development. Therefore, early nutritional intervention is important to promote catch-up growth in young children with faltering growth. The aim of this study was to evaluate the effect of nutritional supplementation with a pediatric concentrated and balanced nutritional supplement formula on promoting growth and improving nutritional status in children with nonorganic faltering growth. SUBJECTS/METHODS: Children aged 12-36 months whose body weight-for-age was < 5^th percentile on the Korean Growth Charts were enrolled. Children born premature or having organic diseases were excluded. Children were instructed to consume 400 mL of formula per day in addition to their regular diet for 6 months. Pediatricians and dietitians educated the parents and examined the subjects every 2 months. Anthropometric parameters were measured at baseline and at 2, 4, and 6 months, and laboratory tests were done at baseline and 6 months. The good consumption group included children who consumed ≥ 60% of the recommended dose of formula. RESULTS: Total 82 children completed the 6-month intervention. At baseline, there were no significant differences in all variables between the good consumption and poor consumption groups. Weight and weight z-scores were significantly improved in the good consumption group compared to the poor consumption group at the end of the intervention (P = 0.009, respectively). The good consumption group showed a significant trend for gaining weight (P < 0.05) and weight z-score (P < 0.05) compared to the poor consumption group during 6 months of formula intake. The concentration of blood urea nitrogen was significantly increased in the good consumption group (P = 0.001). CONCLUSIONS: Nutritional supplementation with a concentrated and balanced pediatric nutritional formula along with dietary education might be an effective approach to promote catch-up growth in children with nonorganic faltering growth.

• Imaging Science in Dentistry
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• 제52권3호
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• pp.275-281
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• 2022

Purpose: The aim of this study was to assess the performance of a deep learning system for permanent tooth germ detection on pediatric panoramic radiographs. Materials and Methods: In total, 4518 anonymized panoramic radiographs of children between 5 and 13 years of age were collected. YOLOv4, a convolutional neural network (CNN)-based object detection model, was used to automatically detect permanent tooth germs. Panoramic images of children processed in LabelImg were trained and tested in the YOLOv4 algorithm. True-positive, false-positive, and false-negative rates were calculated. A confusion matrix was used to evaluate the performance of the model. Results: The YOLOv4 model, which detected permanent tooth germs on pediatric panoramic radiographs, provided an average precision value of 94.16% and an F1 value of 0.90, indicating a high level of significance. The average YOLOv4 inference time was 90 ms. Conclusion: The detection of permanent tooth germs on pediatric panoramic X-rays using a deep learning-based approach may facilitate the early diagnosis of tooth deficiency or supernumerary teeth and help dental practitioners find more accurate treatment options while saving time and effort

• 대한소아치과학회지
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• 제49권2호
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• pp.180-187
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• 2022

이 연구의 목적은 소아 수면 설문지(PSQ)를 활용하여, 구강 내 소견, 체질량 지수(BMI) 및 병력과 비교함으로써 수면 호흡 장애(SDB)와 관련된 잠재적 위험 요인을 조사하는 것이다. 만 7세에서 11세 사이의 787명의 어린이가 포함되었으며, 어린이의 보호자는 설문지를 작성하였다. Angle의 분류, 수평피개 및 Brodsky 편도 등급을 포함한 구강 증상을 조사하였다. 이중 PSQ 점수가 0.33점 이상인 대상은 SDB 고위험군으로 분류되었다. 787명 중 34명(4.3%)이 SDB 고위험군으로 분류되었다. 알레르기성 비염, 아토피성 피부염, 과도한 수평피개, 편도 비대를 가진 어린이는 그렇지 않은 어린이보다 SDB 위험이 훨씬 더 높았다. 또한 BMI 상태에 따라 SDB 위험도에 유의한 차이가 있었다. 성별, 재태 연령, 모유 수유 및 Angle의 분류는 SDB와 관련이 없었다. 이 연구에서 SDB 고위험군의 어린이는 4.3%로 나타났으며, 예측인자로는 편도 비대, 알레르기성 비염, 비만 및 아토피성 피부염이 있었다. 이러한 예측인자를 가진 어린이는 SDB가 발생할 위험이 높고 조기개입이 필요한 대상이 될 수 있다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2008년도 심포지엄 논문집 정보 및 제어부문
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• pp.141-142
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• 2008

Hearing loss is the most common birth defect among infants. Yet most hearing-impaired children are not identified until 1 to 3 years of age - which is well beyond the critical period(6 month) for healthy speech and language development. However, if a hearing-impairment is identified and treated in its early stages, child's speech and language skills will be comparable to his or her normal- hearing peers. For these reasons, hearing screening at birth and routinely throughout childhood is extremely important. Auditory brain-stem response(ABR) is nowadays one of the most reliable diagnostic tools in the early detection of hard of hearing. In this study, we developed the system that detects auditory evoked potential using micro-processor. Furthermore, it is required to develop a portable system to measure in not only soundproof room but also nursery for infants.

• 대한소아치과학회지
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• 제3권1호
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• pp.19-31
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• 1976

To study the eruption pattern of the mandibular first permanent molar, the author took 263 cases of Oblique Cephalogram from age 3 to 6 years old children and observed the vertical and mesiodistal directional change and tooth axis change. The following results were obtained.; 1. The eruption pattern of the mandibular first permanenl molar was changed at about 60~66 months or calcification stage IX. 2. At the early stage, the path of eruption of the mandibular first permanent molar directed upward and forward and after calcification stage IX it changed to the direction of upward. 3. The height of the alveolar bone of the upper part of the mandibular first permanent molar was almost equal to that of the interseptal bone of the first and second deciduous molar, but the height showed gradual descent afterwards. 4. At the early stage, the distance from the distal end of the mandibular second deciduous molar to the anterior portion of the ascending ramus was 1.2~1.4 times larger than the mesio-distal diameter of the mandibular first permanent molar, but at the later stage it was enlarged 1.7~1.9 times larger than the mesiodistal diameter of the mandibular first permanent molar.

• 대한치과의사협회지
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• 제53권12호
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• pp.949-957
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• 2015

We investigate the clinical characteristics of odontoma in childhood and adolescence. A retrospective analysis was performed in 105 patients under 15 years old who were diagnosed with odontoma in Kyungpook National University Dental Hospital, the department of pediatric dentistry between 1 January 2008 and 31 December 2013. The ratio of compound odontoma, immature odontoma and complex odontoma were 67.6%, 21.9% and 10.5%, respectively. Odontoma was more prevalent in males and the ratio of males to females was 1.5:1. The age of patients ranged from 3 to 14 years old with an average age of 9.3 years old. The odontoma was more frequently located in the maxilla (73.3%) than in the mandible(26.7%). In 98 cases, it was treated by surgical removal. Among adjacent teeth impacted by odontoma, 26 cases (34.7%) of successional permanent teeth were erupted when only odontoma were removed and 6 cases (8.0%) were erupted when surgical exposure was performed. Orthodontic tractions were performed in 43 cases (57.3%). In conclusion, odontoma could cause complications such as impaction of teeth. If they are found early and treated properly, high eruption success of successional permanent teeth can be obtained. The occurrence frequency of immature odontoma are higher than that of complex odontoma, and they are observed intensively in anterior maxillary teeth. Therefore, it is considered that they are important causes of dental impaction in anterior maxillary teeth.

• 대한치과마취과학회지
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• 제13권4호
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• pp.209-214
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• 2013

Multiple caries in a pediatric patient often requires dental treatment under general anesthesia, especially when the patient is suffering from a systemic disease. The patient was a 6-year-old boy with Marfan syndrome and needed extensive dental treatment. Marfan syndrome is an inherited disorder resulting from mutations in Fibrillin-1 gene. Patients are known to have mainly cardiovascular, ocular, and musculoskeletal problems. Although clinical symptoms of the syndrome are age-realted, thus hindering early diagnosis of the disease in young children, our patient had been confirmed by a gene study at a younger age. Medical history of the patient revealed moderate to severe mitral regurgitation and aortic root dilatation, which required mitral valve replacement surgery with a mechanical valve. As a result, the patient was taking warfarin post-operatively and changes in medication had to be made before the dental treatment. Also, prophyalctic antibiotics had to be given before the treatment for prevention of (to prevent the) infective endocarditis. With careful control of the medications and bleeding tendency, general anesthesia and the treatment were done successfully without any complications.

• 한국보건간호학회지
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• 제16권2호
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• pp.436-444
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• 2002

This study surveyed 146 obese elementary school children(94 male and 52 female) in Seoul, and measured height, body weight, degree of obesity, blood pressure, fasting blood sugar, serum lipid profiles and liver function. The hypertension was above 95 percentile depending on age and sex. and the hyperglycemia was defined as above 110mg/dl. The hypercholesterolemia and hypertriglyceridemia were defined as above 200mg/dl, 160mg/dl, repectively. The abnormal liver function was considered as elevated alanine aminotransferase(ALT>35IU/L)or aspartate aminotransferase(AST>35IU/L). The results were as follows: 1. The mean degree of obesity was $29.56\pm12.56\%$, and the percentage of overweight was $18.5\%$, mild obesity $41.1\%$, moderate obesity $35.6\%$, severe obesity $4.8\%$ respectively in surveyed children. 2. The systolic blood pressure was $108.34\pm13.73mmHg$, diastolic blood pressure was $67.46\pm8.27mmHg$. 3. FBS was $93.79\pm6.51mg/dl$. 4. Total cholesterol, triglyceride, ALT and AST were $183.34\pm31.38mg/dl$. $115.55\pm56.43mg/dl,\;24.08\pm18.42IU/L,\; 28.73\pm10.45IU/L,$ respectively. 5. The prevalence of complications was $47.2\%$ : hypertension$(13\%)$, hyperglycemia$(0.7\%)$, hypercholesterolemia$(23.3\%)$, hypertriglyceridemia$(17.1\%)$, and liver dysfunction$(21.9\%)$. In conclusion. childhood obesity is associated with various risk factors. Therefore, the aggressive approaches to successful prevention, early detection, and effective treatment of obesity in children are urgently required.